Docs: Update for release FEX-2306

FEXConfig: Removes Emulated CPU cores option

.github/workflows/ccpp.yml

@@ -14,6 +14,7 @@ env:
   CC: clang
   CXX: clang++
   FEX_FORCE32BITALLOCATOR: 1
+  FEX_ENABLEAVX: 1
 
 jobs:
   build:
@@ -24,7 +25,7 @@ jobs:
       fail-fast: false
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set runner label
       run: echo "runner_label=${{ matrix.arch[1] }}" >> $GITHUB_ENV
@@ -72,6 +73,11 @@ jobs:
       # Execute the build.  You can specify a specific target with "--target <NAME>"
       run: cmake --build . --config $BUILD_TYPE
 
+    - name: Install
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --config $BUILD_TYPE --target install
+
     - name: ASM Tests
       working-directory: ${{runner.workspace}}/build
       shell: bash
@@ -199,12 +205,6 @@ jobs:
       working-directory: ${{runner.workspace}}/build
       run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ThunkgenTests.log || true
 
-    - name: Install
-      if: matrix.arch[1] == 'x64'
-      working-directory: ${{runner.workspace}}/build
-      shell: bash
-      run: cmake --build . --config $BUILD_TYPE --target install
-
     - name: Test GL No-Thunks
       if: matrix.arch[1] == 'x64'
       working-directory: ${{runner.workspace}}/build
@@ -241,13 +241,19 @@ jobs:
       # ASM tests get quite close to 10MB
       run: truncate --size=<20M ${{runner.workspace}}/build/Testing/Temporary/LastTest_*.log || true
 
+    - name: Remove old SHM regions
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: cmake --build . --config $BUILD_TYPE --target remove_old_shm_regions
+
     - name: Set runner name
       if: ${{ always() }}
       run: echo "runner_name=$(hostname)" >> $GITHUB_ENV
 
     - name: Upload results
       if: ${{ always() }}
-      uses: 'actions/upload-artifact@v2'
+      uses: 'actions/upload-artifact@v3'
       with:
         name: Results-${{ env.runner_name }}
         path: ${{runner.workspace}}/build/Testing/Temporary/LastTest_*.log

.github/workflows/glibc_fault.yml

@@ -0,0 +1,196 @@
+name: GLIBC fault test
+# This workflow file is the same as the `Build + Test` with some key differences
+# - Runs on any x86 and ARM64 runner
+# - Disables the glibc jemalloc compile option
+# - Enables the glibc allocator fault option
+# - Disables gvisor tests to reduce stress on CI machines (tmp/shm tests overwhelm them)
+# - Disables thunk tests since they are incompatible with glibc fault allocator
+# - Disables ARMEmitter tests (We don't want to fault test vixl's disassembler)
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  BUILD_TYPE: Release
+  CC: clang
+  CXX: clang++
+  FEX_FORCE32BITALLOCATOR: 1
+  FEX_ENABLEAVX: 1
+
+jobs:
+  build:
+    runs-on: ${{ matrix.arch }}
+    strategy:
+      matrix:
+        # Run on an x86 device and any ARM runner.
+        arch: [[self-hosted, x64], [self-hosted, ARM64]]
+      fail-fast: false
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set runner label
+      run: echo "runner_label=${{ matrix.arch[1] }}" >> $GITHUB_ENV
+
+    - name: Set rootfs paths
+      run: |
+        echo "FEX_ROOTFS_MOUNT=/mnt/AutoNFS/rootfs/" >> $GITHUB_ENV
+        echo "FEX_ROOTFS_PATH=$HOME/Rootfs/" >> $GITHUB_ENV
+        echo "FEX_ROOTFS=$HOME/Rootfs/" >> $GITHUB_ENV
+        echo "ROOTFS=$HOME/Rootfs/" >> $GITHUB_ENV
+
+    - name: Update RootFS cache
+      # Use a bash shell so we can use the same syntax for environment variable
+      # access regardless of the host operating system
+      shell: bash
+      run: $GITHUB_WORKSPACE/Scripts/CI_FetchRootFS.py
+
+    - name : submodule checkout
+      # Need to update submodules
+      run: |
+        git submodule sync --recursive
+        git submodule update --init --depth 1
+
+    - name: Clean Build Environment
+      run: rm -Rf ${{runner.workspace}}/build
+
+    - name: Create Build Environment
+      # Some projects don't allow in-source building, so create a separate build directory
+      # We'll use this as our working directory for all subsequent commands
+      run: cmake -E make_directory ${{runner.workspace}}/build
+
+    - name: Configure CMake
+      # Use a bash shell so we can use the same syntax for environment variable
+      # access regardless of the host operating system
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      # Note the current convention is to use the -S and -B options here to specify source
+      # and build directories, but this is only available with CMake 3.13 and higher.
+      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -G Ninja -DENABLE_LTO=False -DENABLE_ASSERTIONS=True -DENABLE_X86_HOST_DEBUG=True -DENABLE_INTERPRETER=True -DBUILD_FEX_LINUX_TESTS=True -DENABLE_GLIBC_ALLOCATOR_HOOK_FAULT=True -DENABLE_JEMALLOC_GLIBC_ALLOC=False -DCMAKE_INSTALL_PREFIX=${{runner.workspace}}/build/install
+
+    - name: Build
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the build.  You can specify a specific target with "--target <NAME>"
+      run: cmake --build . --config $BUILD_TYPE
+
+    - name: Install
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --config $BUILD_TYPE --target install
+
+    - name: ASM Tests
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the unit tests
+      run: cmake --build . --config $BUILD_TYPE --target asm_tests
+
+    - name: ASM Test Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_ASM.log || true
+
+    - name: IR Tests
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the unit tests
+      run: cmake --build . --config $BUILD_TYPE --target ir_tests
+
+    - name: IR Test Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_IR.log || true
+
+    - name: Posix Tests
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the posixtest
+      run: cmake --build . --config $BUILD_TYPE --target posix_tests
+
+    - name: Posix Test Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_Posix.log || true
+
+    - name: gcc target tests 64
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the gvisor tests
+      run: cmake --build . --config $BUILD_TYPE --target gcc_target_tests_64
+
+    - name: GCC64 Test Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_GCC64.log || true
+
+    - name: gcc target tests 32
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the gvisor tests
+      run: cmake --build . --config $BUILD_TYPE --target gcc_target_tests_32
+
+    - name: GCC32 Test Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_GCC32.log || true
+
+    - name: APITest tests
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --config $BUILD_TYPE --target api_tests
+
+    - name: APITest Test Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_APITests.log || true
+
+    - name: FEXLinuxTests
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      run: cmake --build . --config $BUILD_TYPE --target fex_linux_tests_all
+
+    - name: FEXLinuxTests Results move
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: mv ${{runner.workspace}}/build/Testing/Temporary/LastTest.log ${{runner.workspace}}/build/Testing/Temporary/LastTest_FEXLinuxTests.log || true
+
+    - name: Truncate test results
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      # Cap out the log files at 20M in case something crash spins and dumps fault text
+      # ASM tests get quite close to 10MB
+      run: truncate --size=<20M ${{runner.workspace}}/build/Testing/Temporary/LastTest_*.log || true
+
+    - name: Remove old SHM regions
+      if: ${{ always() }}
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      run: cmake --build . --config $BUILD_TYPE --target remove_old_shm_regions
+
+    - name: Set runner name
+      if: ${{ always() }}
+      run: echo "runner_name=$(hostname)" >> $GITHUB_ENV
+
+    - name: Upload results
+      if: ${{ always() }}
+      uses: 'actions/upload-artifact@v3'
+      with:
+        name: Results-${{ env.runner_name }}
+        path: ${{runner.workspace}}/build/Testing/Temporary/LastTest_*.log
+        retention-days: 3
+

.github/workflows/vixl_simulator.yml

@@ -13,6 +13,7 @@ env:
   BUILD_TYPE: Release
   CC: clang
   CXX: clang++
+  FEX_ENABLEAVX: 1
 
 jobs:
   build:
@@ -24,7 +25,7 @@ jobs:
       fail-fast: false
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set runner label
       run: echo "runner_label=${{ matrix.arch[1] }}" >> $GITHUB_ENV
@@ -110,7 +111,7 @@ jobs:
 
     - name: Upload results
       if: ${{ always() }}
-      uses: 'actions/upload-artifact@v2'
+      uses: 'actions/upload-artifact@v3'
       with:
         name: Results-${{ env.runner_name }}
         path: ${{runner.workspace}}/build/Testing/Temporary/LastTest_*.log

.gitmodules

@@ -3,7 +3,7 @@
 	path = External/vixl
 	url = https://github.com/FEX-Emu/vixl.git
 [submodule "External/cpp-optparse"]
-	path = External/cpp-optparse
+	path = Source/Common/cpp-optparse
 	url = https://github.com/Sonicadvance1/cpp-optparse
 [submodule "External/imgui"]
 	path = External/imgui
@@ -48,8 +48,11 @@
 [submodule "External/robin-map"]
 	shallow = true
 	path = External/robin-map
-	url = https://github.com/Tessil/robin-map.git
+	url = https://github.com/FEX-Emu/robin-map.git
 [submodule "External/Vulkan-Headers"]
 	shallow = true
 	path = External/Vulkan-Headers
 	url = https://github.com/KhronosGroup/Vulkan-Headers.git
+[submodule "External/jemalloc_glibc"]
+	path = External/jemalloc_glibc
+	url = https://github.com/FEX-Emu/jemalloc.git

CMakeLists.txt

@@ -18,10 +18,10 @@ option(ENABLE_ASAN "Enables Clang ASAN" FALSE)
 option(ENABLE_TSAN "Enables Clang TSAN" FALSE)
 option(ENABLE_ASSERTIONS "Enables assertions in build" FALSE)
 option(ENABLE_GDB_SYMBOLS "Enables GDBSymbols integration support" ${HAVE_GDB_JIT_READER_H})
-option(ENABLE_VISUAL_DEBUGGER "Enables the visual debugger for compiling" FALSE)
 option(ENABLE_STRICT_WERROR "Enables stricter -Werror for CI" FALSE)
 option(ENABLE_WERROR "Enables -Werror" FALSE)
 option(ENABLE_JEMALLOC "Enables jemalloc allocator" TRUE)
+option(ENABLE_JEMALLOC_GLIBC_ALLOC "Enables jemalloc glibc allocator" TRUE)
 option(ENABLE_OFFLINE_TELEMETRY "Enables FEX offline telemetry" TRUE)
 option(ENABLE_COMPILE_TIME_TRACE "Enables time trace compile option" FALSE)
 option(ENABLE_LIBCXX "Enables LLVM libc++" FALSE)
@@ -33,11 +33,19 @@ option(ENABLE_VIXL_DISASSEMBLER "Enables debug disassembler output with VIXL" FA
 option(COMPILE_VIXL_DISASSEMBLER "Compiles the vixl disassembler in to vixl" FALSE)
 option(ENABLE_FEXCORE_PROFILER "Enables use of the FEXCore timeline profiling capabilities" FALSE)
 set (FEXCORE_PROFILER_BACKEND "gpuvis" CACHE STRING "Set which backend you want to use for the FEXCore profiler")
+option(ENABLE_GLIBC_ALLOCATOR_HOOK_FAULT "Enables glibc memory allocation hooking with fault for CI testing")
 
 set (X86_32_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/toolchain_x86_32.cmake" CACHE FILEPATH "Toolchain file for the (cross-)compiler targeting i686")
 set (X86_64_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/toolchain_x86_64.cmake" CACHE FILEPATH "Toolchain file for the (cross-)compiler targeting x86_64")
 set (DATA_DIRECTORY "${CMAKE_INSTALL_PREFIX}/share/fex-emu" CACHE PATH "global data directory")
 
+string(FIND ${CMAKE_BASE_NAME} mingw CONTAINS_MINGW)
+if (NOT CONTAINS_MINGW EQUAL -1)
+  message (STATUS "Mingw build")
+  set (MINGW_BUILD TRUE)
+  set (ENABLE_JEMALLOC FALSE)
+endif()
+
 if (ENABLE_FEXCORE_PROFILER)
   add_definitions(-DENABLE_FEXCORE_PROFILER=1)
   string(TOUPPER "${FEXCORE_PROFILER_BACKEND}" FEXCORE_PROFILER_BACKEND)
@@ -49,6 +57,14 @@ if (ENABLE_FEXCORE_PROFILER)
   endif()
 endif()
 
+if (ENABLE_JEMALLOC_GLIBC_ALLOC AND ENABLE_GLIBC_ALLOCATOR_HOOK_FAULT)
+  message(FATAL_ERROR "Can't have both glibc fault allocator and jemalloc glibc allocator enabled at the same time")
+endif()
+
+if (ENABLE_GLIBC_ALLOCATOR_HOOK_FAULT)
+  add_definitions(-DGLIBC_ALLOCATOR_FAULT=1)
+endif()
+
 # uninstall target
 if(NOT TARGET uninstall)
   configure_file(
@@ -178,7 +194,22 @@ if (ENABLE_TSAN)
   link_libraries(-fno-omit-frame-pointer -fsanitize=thread)
 endif()
 
+if (ENABLE_JEMALLOC_GLIBC_ALLOC)
+  # The glibc jemalloc subproject which hooks the glibc allocator.
+  # Required for thunks to work.
+  # All host native libraries will use this allocator, while *most* other FEX internal allocations will use the other jemalloc allocator.
+  add_definitions(-DENABLE_JEMALLOC_GLIBC=1)
+  add_subdirectory(External/jemalloc_glibc/)
+else()
+  message (STATUS
+    " jemalloc glibc allocator disabled!\n"
+    " This is not a recommended configuration!\n"
+    " This will very explicitly break thunk execution!\n"
+    " Use at your own risk!")
+endif()
+
 if (ENABLE_JEMALLOC)
+  # The jemalloc subproject that all FEXCore fextl objects allocate through.
   add_definitions(-DENABLE_JEMALLOC=1)
   add_subdirectory(External/jemalloc/)
   include_directories(External/jemalloc/pregen/include/)
@@ -230,9 +261,6 @@ if (BUILD_TESTS)
   include(Catch)
 endif()
 
-add_subdirectory(External/cpp-optparse/)
-include_directories(External/cpp-optparse/)
-
 add_subdirectory(External/fmt/)
 
 add_subdirectory(External/imgui/)

Data/AppConfig/VC_redist.x64.exe.json

@@ -1,5 +0,0 @@
-{
-  "Config": {
-    "x86dec_SynchronizeRIPOnAllBlocks": "1"
-  }
-}

Data/AppConfig/VC_redist.x86.exe.json

@@ -1,5 +0,0 @@
-{
-  "Config": {
-    "x86dec_SynchronizeRIPOnAllBlocks": "1"
-  }
-}

Data/AppConfig/client.json

@@ -0,0 +1,5 @@
+{
+  "Config": {
+    "HideHypervisorBit": "1"
+  }
+}

Data/AppConfig/vcredist_x64.exe.json

@@ -1,5 +0,0 @@
-{
-  "Config": {
-    "x86dec_SynchronizeRIPOnAllBlocks": "1"
-  }
-}

Data/AppConfig/vcredist_x86.exe.json

@@ -1,5 +0,0 @@
-{
-  "Config": {
-    "x86dec_SynchronizeRIPOnAllBlocks": "1"
-  }
-}

Data/ThunksDB.json

@@ -173,6 +173,14 @@
         "@PREFIX_LIB@/@PREFIX_ARCH@-linux-gnu/libOpenCL.so.1.0.0"
       ]
     },
+    "WaylandClient": {
+      "Library" : "libwayland-client-guest.so",
+      "Overlay": [
+        "@PREFIX_LIB@/@PREFIX_ARCH@-linux-gnu/libwayland-client.so",
+        "@PREFIX_LIB@/@PREFIX_ARCH@-linux-gnu/libwayland-client.so.0",
+        "@PREFIX_LIB@/@PREFIX_ARCH@-linux-gnu/libwayland-client.so.0.20.0"
+      ]
+    },
     "":{}
   }
 }

External/FEXCore/CMakeLists.txt

@@ -77,6 +77,7 @@ configure_file(
 
 include_directories(${CMAKE_BINARY_DIR}/generated)
 
+add_compile_options(-fno-exceptions)
 add_subdirectory(Source/)
 
 install (DIRECTORY include/FEXCore ${CMAKE_BINARY_DIR}/include/FEXCore

External/FEXCore/Scripts/config_generator.py

@@ -22,10 +22,10 @@ def print_header():
 #define OPT_UINT64(group, enum, json, default) OPT_BASE(uint64_t, group, enum, json, default)
 #endif
 #ifndef OPT_STR
-#define OPT_STR(group, enum, json, default) OPT_BASE(std::string, group, enum, json, default)
+#define OPT_STR(group, enum, json, default) OPT_BASE(fextl::string, group, enum, json, default)
 #endif
 #ifndef OPT_STRARRAY
-#define OPT_STRARRAY(group, enum, json, default) OPT_BASE(std::string, group, enum, json, default)
+#define OPT_STRARRAY(group, enum, json, default) OPT_BASE(fextl::string, group, enum, json, default)
 #endif
 
 '''
@@ -371,13 +371,16 @@ def print_parse_argloader_options(options):
 
             value_type = op_vals["Type"]
             NeedsString = False
-            conversion_func = "std::to_string"
+            conversion_func = "fextl::fmt::format(\"{}\", "
             if ("ArgumentHandler" in op_vals):
                 NeedsString = True
-                conversion_func = "FEXCore::Config::Handler::{0}".format(op_vals["ArgumentHandler"])
+                conversion_func = "FEXCore::Config::Handler::{0}(".format(op_vals["ArgumentHandler"])
             if (value_type == "str"):
                 NeedsString = True
-                conversion_func = ""
+                conversion_func = "("
+            if (value_type == "bool"):
+                # boolean values need a decimal specifier. Otherwise fmt prints strings.
+                conversion_func = "fextl::fmt::format(\"{:d}\", "
 
             if (value_type == "strarray"):
                 # these need a bit more help
@@ -387,11 +390,11 @@ def print_parse_argloader_options(options):
                 output_argloader.write("\t}\n")
             else:
                 if (NeedsString):
-                    output_argloader.write("\tstd::string UserValue = Options[\"{0}\"];\n".format(op_key))
+                    output_argloader.write("\tfextl::string UserValue = Options[\"{0}\"];\n".format(op_key))
                 else:
                     output_argloader.write("\t{0} UserValue = Options.get(\"{1}\");\n".format(value_type, op_key))
 
-                output_argloader.write("\tSet(FEXCore::Config::ConfigOption::CONFIG_{0}, {1}(UserValue));\n".format(op_key.upper(), conversion_func))
+                output_argloader.write("\tSet(FEXCore::Config::ConfigOption::CONFIG_{0}, {1}UserValue));\n".format(op_key.upper(), conversion_func))
             output_argloader.write("}\n")
 
     output_argloader.write("#endif\n")

External/FEXCore/Source/CMakeLists.txt

@@ -1,13 +1,19 @@
 set (MAN_DIR ${CMAKE_INSTALL_PREFIX}/share/man CACHE PATH "MAN_DIR")
 
 set (FEXCORE_BASE_SRCS
-  Common/Paths.cpp
   Interface/Config/Config.cpp
+  Utils/Allocator.cpp
+  Utils/CPUInfo.cpp
   Utils/FileLoading.cpp
   Utils/ForcedAssert.cpp
   Utils/LogManager.cpp
   )
 
+if (NOT MINGW_BUILD)
+  list(APPEND FEXCORE_BASE_SRCS
+    Utils/Allocator/64BitAllocator.cpp)
+endif()
+
 set (SRCS
   Common/JitSymbols.cpp
   Common/SoftFloat-3e/extF80_add.c
@@ -99,12 +105,11 @@ set (SRCS
   Interface/Core/X86Tables.cpp
   Interface/Core/X86DebugInfo.cpp
   Interface/Core/X86HelperGen.cpp
-  Interface/Core/ArchHelpers/Arm64_stubs.cpp
   Interface/Core/ArchHelpers/Arm64Emitter.cpp
   Interface/Core/Dispatcher/Dispatcher.cpp
   Interface/Core/Dispatcher/X86Dispatcher.cpp
   Interface/Core/Dispatcher/Arm64Dispatcher.cpp
-  Interface/Core/Interpreter/InterpreterFallbacks.cpp
+  Interface/Core/Interpreter/Fallbacks/InterpreterFallbacks.cpp
   Interface/Core/X86Tables/BaseTables.cpp
   Interface/Core/X86Tables/DDDTables.cpp
   Interface/Core/X86Tables/EVEXTables.cpp
@@ -137,14 +142,23 @@ set (SRCS
   Interface/IR/Passes/DeadStoreElimination.cpp
   Interface/IR/Passes/RegisterAllocationPass.cpp
   Interface/IR/Passes/SyscallOptimization.cpp
-  Utils/Allocator.cpp
-  Utils/Allocator/64BitAllocator.cpp
   Utils/NetStream.cpp
   Utils/Telemetry.cpp
   Utils/Threads.cpp
   Utils/Profiler.cpp
   )
 
+if (_M_ARM_64)
+  list(APPEND SRCS Utils/ArchHelpers/Arm64.cpp)
+else()
+  list(APPEND SRCS Utils/ArchHelpers/Arm64_stubs.cpp)
+endif()
+
+if (ENABLE_GLIBC_ALLOCATOR_HOOK_FAULT)
+  list(APPEND FEXCORE_BASE_SRCS
+    Utils/AllocatorOverride.cpp)
+endif()
+
 if (ENABLE_INTERPRETER)
   list(APPEND SRCS
     Interface/Core/Interpreter/InterpreterCore.cpp
@@ -162,11 +176,6 @@ if (ENABLE_INTERPRETER)
     Interface/Core/Interpreter/VectorOps.cpp)
 endif()
 
-if(_M_ARM_64)
-  list(APPEND SRCS
-    Interface/Core/ArchHelpers/Arm64.cpp)
-endif()
-
 set(DEFINES -DTHREAD_LOCAL=_Thread_local)
 
 if (_M_X86_64)
@@ -222,11 +231,22 @@ if (ENABLE_JIT_ARM64)
     )
 endif()
 
-set (LIBS fmt::fmt vixl dl xxhash tiny-json FEXHeaderUtils)
+set (LIBS fmt::fmt vixl xxhash tiny-json FEXHeaderUtils)
+
+if (NOT MINGW_BUILD)
+  list (APPEND LIBS dl)
+else()
+  list (APPEND LIBS synchronization)
+endif()
+
 if (ENABLE_JEMALLOC)
   list (APPEND LIBS FEX_jemalloc)
 endif()
 
+if (ENABLE_JEMALLOC_GLIBC_ALLOC)
+  list (APPEND LIBS FEX_jemalloc_glibc)
+endif()
+
 # Generate config
 configure_file(
   ${CMAKE_CURRENT_SOURCE_DIR}/Interface/Config/Config.json.in
@@ -331,7 +351,7 @@ function(AddDefaultOptionsToTarget Name)
   target_include_directories(${Name} PUBLIC "${CMAKE_BINARY_DIR}/include/")
 
   target_compile_definitions(${Name} PRIVATE ${DEFINES})
-  add_dependencies(${Name} CONFIG_INC)
+  add_dependencies(${Name} CONFIG_INC IR_INC)
 
   target_compile_options(${Name}
     PRIVATE
@@ -373,7 +393,6 @@ AddDefaultOptionsToTarget(FEXCore_Base)
 
 function(AddObject Name Type)
   add_library(${Name} ${Type} ${SRCS})
-  add_dependencies(${Name} IR_INC)
 
   target_link_libraries(${Name} FEXCore_Base)
   AddDefaultOptionsToTarget(${Name})
@@ -385,6 +404,16 @@ function(AddLibrary Name Type)
   add_library(${Name} ${Type} $<TARGET_OBJECTS:${PROJECT_NAME}_object>)
   target_link_libraries(${Name} FEXCore_Base)
   set_target_properties(${Name} PROPERTIES OUTPUT_NAME FEXCore)
+  if (MINGW_BUILD)
+    # Mingw build isn't building a linux shared library, so it can't have a SONAME.
+    set_target_properties(${Name} PROPERTIES NO_SONAME ON)
+    # Change the suffixes otherwise cmake continues using .a and .so
+    if (${Type} STREQUAL SHARED)
+      set_target_properties(${Name} PROPERTIES SUFFIX ".dll")
+    elseif(${Type} STREQUAL STATIC)
+      set_target_properties(${Name} PROPERTIES SUFFIX ".lib")
+    endif()
+  endif()
 
   AddDefaultOptionsToTarget(${Name})
 endfunction()
@@ -393,10 +422,12 @@ AddObject(${PROJECT_NAME}_object OBJECT)
 AddLibrary(${PROJECT_NAME} STATIC)
 AddLibrary(${PROJECT_NAME}_shared SHARED)
 
-install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_shared
-  LIBRARY
-    DESTINATION lib
-    COMPONENT Libraries
-  ARCHIVE
-    DESTINATION lib
-    COMPONENT Libraries)
+if (NOT MINGW_BUILD)
+  install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_shared
+    LIBRARY
+      DESTINATION lib
+      COMPONENT Libraries
+    ARCHIVE
+      DESTINATION lib
+      COMPONENT Libraries)
+endif()

External/FEXCore/Source/Common/JitSymbols.cpp

@@ -1,11 +1,10 @@
+#include <FEXCore/fextl/fmt.h>
+
 #include "Common/JitSymbols.h"
 
 #include <fcntl.h>
-#include <string>
 #include <unistd.h>
 
-#include <fmt/format.h>
-
 namespace FEXCore {
   JITSymbols::JITSymbols() {
   }
@@ -18,7 +17,7 @@ namespace FEXCore {
 
   void JITSymbols::InitFile() {
     // We can't use FILE here since we must be robust against forking processes closing our FD from under us.
-    const auto PerfMap = fmt::format("/tmp/perf-{}.map", getpid());
+    const auto PerfMap = fextl::fmt::format("/tmp/perf-{}.map", getpid());
 
     fd = open(PerfMap.c_str(), O_CREAT | O_TRUNC | O_WRONLY | O_APPEND, 0644);
   }
@@ -28,7 +27,7 @@ namespace FEXCore {
 
     // Linux perf format is very straightforward
     // `<HostPtr> <Size> <Name>\n`
-    const auto Buffer = fmt::format("{} {:x} JIT_0x{:x}_{}\n", HostAddr, CodeSize, GuestAddr, HostAddr);
+    const auto Buffer = fextl::fmt::format("{} {:x} JIT_0x{:x}_{}\n", HostAddr, CodeSize, GuestAddr, HostAddr);
     auto Result = write(fd, Buffer.c_str(), Buffer.size());
     if (Result == -1 && errno == EBADF) {
       fd = -1;
@@ -40,7 +39,7 @@ namespace FEXCore {
 
     // Linux perf format is very straightforward
     // `<HostPtr> <Size> <Name>\n`
-    const auto Buffer = fmt::format("{} {:x} {}_{}\n", HostAddr, CodeSize, Name, HostAddr);
+    const auto Buffer = fextl::fmt::format("{} {:x} {}_{}\n", HostAddr, CodeSize, Name, HostAddr);
     auto Result = write(fd, Buffer.c_str(), Buffer.size());
     if (Result == -1 && errno == EBADF) {
       fd = -1;
@@ -52,7 +51,7 @@ namespace FEXCore {
 
     // Linux perf format is very straightforward
     // `<HostPtr> <Size> <Name>\n`
-    const auto Buffer = fmt::format("{} {:x} {}+0x{:x} ({})\n", HostAddr, CodeSize, Name, Offset, HostAddr);
+    const auto Buffer = fextl::fmt::format("{} {:x} {}+0x{:x} ({})\n", HostAddr, CodeSize, Name, Offset, HostAddr);
     auto Result = write(fd, Buffer.c_str(), Buffer.size());
     if (Result == -1 && errno == EBADF) {
       fd = -1;
@@ -64,7 +63,7 @@ namespace FEXCore {
 
     // Linux perf format is very straightforward
     // `<HostPtr> <Size> <Name>\n`
-    const auto Buffer = fmt::format("{} {:x} {}\n", HostAddr, CodeSize, Name);
+    const auto Buffer = fextl::fmt::format("{} {:x} {}\n", HostAddr, CodeSize, Name);
     auto Result = write(fd, Buffer.c_str(), Buffer.size());
     if (Result == -1 && errno == EBADF) {
       fd = -1;
@@ -76,7 +75,7 @@ namespace FEXCore {
 
     // Linux perf format is very straightforward
     // `<HostPtr> <Size> <Name>\n`
-    const auto Buffer = fmt::format("{} {:x} FEXJIT\n", HostAddr, CodeSize);
+    const auto Buffer = fextl::fmt::format("{} {:x} FEXJIT\n", HostAddr, CodeSize);
     auto Result = write(fd, Buffer.c_str(), Buffer.size());
     if (Result == -1 && errno == EBADF) {
       fd = -1;

External/FEXCore/Source/Common/Paths.cpp

@@ -1,91 +0,0 @@
-#include "Common/Paths.h"
-#include <FEXCore/Utils/LogManager.h>
-
-#include <cstdlib>
-#include <filesystem>
-#include <memory>
-#include <pwd.h>
-#include <system_error>
-#include <unistd.h>
-
-namespace FEXCore::Paths {
-  std::unique_ptr<std::string> CachePath;
-  std::unique_ptr<std::string> EntryCache;
-
-  char const* FindUserHomeThroughUID() {
-    auto passwd = getpwuid(geteuid());
-    if (passwd) {
-      return passwd->pw_dir;
-    }
-    return nullptr;
-  }
-
-  const char *GetHomeDirectory() {
-    char const *HomeDir = getenv("HOME");
-
-    // Try to get home directory from uid
-    if (!HomeDir) {
-      HomeDir = FindUserHomeThroughUID();
-    }
-
-    // try the PWD
-    if (!HomeDir) {
-      HomeDir = getenv("PWD");
-    }
-
-    // Still doesn't exit? You get local
-    if (!HomeDir) {
-      HomeDir = ".";
-    }
-
-    return HomeDir;
-  }
-
-  void InitializePaths() {
-    CachePath = std::make_unique<std::string>();
-    EntryCache = std::make_unique<std::string>();
-
-    char const *HomeDir = getenv("HOME");
-
-    if (!HomeDir) {
-      HomeDir = getenv("PWD");
-    }
-
-    if (!HomeDir) {
-      HomeDir = ".";
-    }
-
-    char *XDGDataDir = getenv("XDG_DATA_DIR");
-    if (XDGDataDir) {
-      *CachePath = XDGDataDir;
-    }
-    else {
-      if (HomeDir) {
-        *CachePath = HomeDir;
-      }
-    }
-
-    *CachePath += "/.fex-emu/";
-    *EntryCache = *CachePath + "/EntryCache/";
-
-    std::error_code ec{};
-    // Ensure the folder structure is created for our Data
-    if (!std::filesystem::exists(*EntryCache, ec) &&
-        !std::filesystem::create_directories(*EntryCache, ec)) {
-      LogMan::Msg::DFmt("Couldn't create EntryCache directory: '{}'", *EntryCache);
-    }
-  }
-
-  void ShutdownPaths() {
-    CachePath.reset();
-    EntryCache.reset();
-  }
-
-  std::string GetCachePath() {
-    return *CachePath;
-  }
-
-  std::string GetEntryCachePath() {
-    return *EntryCache;
-  }
-}

External/FEXCore/Source/Common/Paths.h

@@ -1,12 +0,0 @@
-#pragma once
-#include <string>
-
-namespace FEXCore::Paths {
-  void InitializePaths();
-  void ShutdownPaths();
-
-  const char *GetHomeDirectory();
-
-  std::string GetCachePath();
-  std::string GetEntryCachePath();
-}

External/FEXCore/Source/Common/SoftFloat.h

@@ -2,19 +2,19 @@
 
 #include <FEXCore/Utils/BitUtils.h>
 #include <FEXCore/Utils/LogManager.h>
+#include <FEXCore/fextl/sstream.h>
+#include <FEXCore/fextl/string.h>
 
 #include <cmath>
 #include <cstring>
 #include <stdint.h>
-#include <string>
-#include <sstream>
 
 extern "C" {
 #include "SoftFloat-3e/platform.h"
 #include "SoftFloat-3e/softfloat.h"
 }
 
-struct X80SoftFloat {
+struct FEX_PACKED X80SoftFloat {
 #ifdef _M_X86_64
 // Define this to push some operations to x87
 // Only useful to see if precision loss is killing something
@@ -32,22 +32,28 @@ struct X80SoftFloat {
 #else
 #error No 128bit float for this target!
 #endif
-  struct __attribute__((packed)) {
-    uint64_t Significand : 64;
-    uint16_t Exponent    : 15;
-    unsigned Sign        : 1;
-  };
+
+#ifndef _WIN32
+#define LIBRARY_PRECISION BIGFLOAT
+#else
+// Mingw Win32 libraries don't have `__float128` helpers. Needs to use a lower precision.
+#define LIBRARY_PRECISION double
+#endif
+
+  uint64_t Significand : 64;
+  uint16_t Exponent    : 15;
+  uint16_t Sign        : 1;
 
   X80SoftFloat() { memset(this, 0, sizeof(*this)); }
-  X80SoftFloat(unsigned _Sign, uint16_t _Exponent, uint64_t _Significand)
+  X80SoftFloat(uint16_t _Sign, uint16_t _Exponent, uint64_t _Significand)
     : Significand {_Significand}
     , Exponent {_Exponent}
     , Sign {_Sign}
     {
   }
 
-  std::string str() const {
-    std::ostringstream string;
+  fextl::string str() const {
+    fextl::ostringstream string;
     string << std::hex << Sign;
     string << "_" << Exponent;
     string << "_" << (Significand >> 63);
@@ -262,7 +268,7 @@ struct X80SoftFloat {
     return Result;
 #else
     X80SoftFloat Int = FRNDINT(rhs, softfloat_round_minMag);
-    BIGFLOAT Src2_d = Int;
+    LIBRARY_PRECISION Src2_d = Int;
     Src2_d = exp2l(Src2_d);
     X80SoftFloat Src2_X80 = Src2_d;
     X80SoftFloat Result = extF80_mul(lhs, Src2_X80);
@@ -286,8 +292,8 @@ struct X80SoftFloat {
 
     return Result;
 #else
-    BIGFLOAT Src1_d = lhs;
-    BIGFLOAT Result = exp2l(Src1_d);
+    LIBRARY_PRECISION Src1_d = lhs;
+    LIBRARY_PRECISION Result = exp2l(Src1_d);
     Result -= 1.0;
     return Result;
 #endif
@@ -311,9 +317,9 @@ struct X80SoftFloat {
 
     return Result;
 #else
-    BIGFLOAT Src1_d = lhs;
-    BIGFLOAT Src2_d = rhs;
-    BIGFLOAT Tmp = Src2_d * log2l(Src1_d);
+    LIBRARY_PRECISION Src1_d = lhs;
+    LIBRARY_PRECISION Src2_d = rhs;
+    LIBRARY_PRECISION Tmp = Src2_d * log2l(Src1_d);
     return Tmp;
 #endif
   }
@@ -336,9 +342,9 @@ struct X80SoftFloat {
 
     return Result;
 #else
-    BIGFLOAT Src1_d = lhs;
-    BIGFLOAT Src2_d = rhs;
-    BIGFLOAT Tmp = atan2l(Src1_d, Src2_d);
+    LIBRARY_PRECISION Src1_d = lhs;
+    LIBRARY_PRECISION Src2_d = rhs;
+    LIBRARY_PRECISION Tmp = atan2l(Src1_d, Src2_d);
     return Tmp;
 #endif
   }
@@ -360,7 +366,7 @@ struct X80SoftFloat {
 
     return Result;
 #else
-    BIGFLOAT Src_d = lhs;
+    LIBRARY_PRECISION Src_d = lhs;
     Src_d = tanl(Src_d);
     return Src_d;
 #endif
@@ -382,7 +388,7 @@ struct X80SoftFloat {
 
     return Result;
 #else
-    BIGFLOAT Src_d = lhs;
+    LIBRARY_PRECISION Src_d = lhs;
     Src_d = sinl(Src_d);
     return Src_d;
 #endif
@@ -404,7 +410,7 @@ struct X80SoftFloat {
 
     return Result;
 #else
-    BIGFLOAT Src_d = lhs;
+    LIBRARY_PRECISION Src_d = lhs;
     Src_d = cosl(Src_d);
     return Src_d;
 #endif
@@ -439,6 +445,7 @@ struct X80SoftFloat {
     return FEXCore::BitCast<double>(Result);
   }
 
+#ifndef _WIN32
   operator BIGFLOAT() const {
 #if BIGFLOATSIZE == 16
     const float128_t Result = extF80_to_f128(*this);
@@ -449,6 +456,7 @@ struct X80SoftFloat {
     return result;
 #endif
   }
+#endif
 
   operator int16_t() const {
     auto rv = extF80_to_i32(*this, softfloat_roundingMode, false);
@@ -517,6 +525,7 @@ struct X80SoftFloat {
     *this = f64_to_extF80(FEXCore::BitCast<float64_t>(rhs));
   }
 
+#ifndef _WIN32
   X80SoftFloat(BIGFLOAT rhs) {
 #if BIGFLOATSIZE == 16
     *this = f128_to_extF80(FEXCore::BitCast<float128_t>(rhs));
@@ -524,6 +533,7 @@ struct X80SoftFloat {
     *this = FEXCore::BitCast<long double>(rhs);
 #endif
   }
+#endif
 
   X80SoftFloat(const int16_t rhs) {
     *this = i32_to_extF80(rhs);
@@ -562,4 +572,9 @@ private:
   static constexpr uint32_t ExponentBias = 16383;
 };
 
+#ifndef _WIN32
 static_assert(sizeof(X80SoftFloat) == 10, "tword must be 10bytes in size");
+#else
+// Padding on this extends to 16-bytes rather than 10-bytes on WIN32.
+static_assert(sizeof(X80SoftFloat) == 16, "tword must be 16bytes in size");
+#endif

External/FEXCore/Source/Common/StringConv.h

@@ -1,48 +1,49 @@
 #pragma once
+#include <FEXCore/fextl/string.h>
+
 #include <cstdint>
-#include <string>
 #include <string_view>
 #include <optional>
 
 namespace FEXCore::StrConv {
   [[maybe_unused]] static bool Conv(std::string_view Value, bool *Result) {
-    *Result = std::stoi(std::string(Value), nullptr, 0);
+    *Result = std::strtoull(Value.data(), nullptr, 0);
     return true;
   }
 
   [[maybe_unused]] static bool Conv(std::string_view Value, uint8_t *Result) {
-    *Result = std::stoi(std::string(Value), nullptr, 0);
+    *Result = std::strtoul(Value.data(), nullptr, 0);
     return true;
   }
 
   [[maybe_unused]] static bool Conv(std::string_view Value, uint16_t *Result) {
-    *Result = std::stoi(std::string(Value), nullptr, 0);
+    *Result = std::strtoul(Value.data(), nullptr, 0);
     return true;
   }
 
   [[maybe_unused]] static bool Conv(std::string_view Value, uint32_t *Result) {
-    *Result = std::stoi(std::string(Value), nullptr, 0);
+    *Result = std::strtoul(Value.data(), nullptr, 0);
     return true;
   }
 
   [[maybe_unused]] static bool Conv(std::string_view Value, int32_t *Result) {
-    *Result = std::stoi(std::string(Value), nullptr, 0);
+    *Result = std::strtol(Value.data(), nullptr, 0);
     return true;
   }
 
   [[maybe_unused]] static bool Conv(std::string_view Value, uint64_t *Result) {
-    *Result = std::stoull(std::string(Value), nullptr, 0);
-    return true;
-  }
-  [[maybe_unused]] static bool Conv(std::string_view Value, std::string *Result) {
-    *Result = Value;
+    *Result = std::strtoull(Value.data(), nullptr, 0);
     return true;
   }
   template <typename T,
     typename = std::enable_if<std::is_enum<T>::value, T>>
   [[maybe_unused]] static bool Conv(std::string_view Value, T *Result) {
-    *Result = static_cast<T>(std::stoull(std::string(Value), nullptr, 0));
+    *Result = static_cast<T>(std::stoull(Value.data(), nullptr, 0));
     return true;
   }
 
+  [[maybe_unused]] static bool Conv(std::string_view Value, fextl::string *Result) {
+    *Result = Value;
+    return true;
+  }
 }

External/FEXCore/Source/Common/StringUtils.h

@@ -1,11 +1,11 @@
 #pragma once
-#include <string>
+#include <FEXCore/fextl/string.h>
 
 namespace FEXCore::StringUtils {
   // Trim the left side of the string of whitespace and new lines
-  [[maybe_unused]] static std::string LeftTrim(std::string String, std::string TrimTokens = " \t\n\r") {
-    size_t pos = std::string::npos;
-    if ((pos = String.find_first_not_of(TrimTokens)) != std::string::npos) {
+  [[maybe_unused]] static fextl::string LeftTrim(fextl::string String, std::string_view TrimTokens = " \t\n\r") {
+    size_t pos = fextl::string::npos;
+    if ((pos = String.find_first_not_of(TrimTokens)) != fextl::string::npos) {
       String.erase(0, pos);
     }
 
@@ -13,9 +13,9 @@ namespace FEXCore::StringUtils {
   }
 
   // Trim the right side of the string of whitespace and new lines
-  [[maybe_unused]] static std::string RightTrim(std::string String, std::string TrimTokens = " \t\n\r") {
-    size_t pos = std::string::npos;
-    if ((pos = String.find_last_not_of(TrimTokens)) != std::string::npos) {
+  [[maybe_unused]] static fextl::string RightTrim(fextl::string String, std::string_view TrimTokens = " \t\n\r") {
+    size_t pos = fextl::string::npos;
+    if ((pos = String.find_last_not_of(TrimTokens)) != fextl::string::npos) {
       String.erase(String.begin() + pos + 1, String.end());
     }
 
@@ -23,7 +23,8 @@ namespace FEXCore::StringUtils {
   }
 
   // Trim both the left and right of the string of whitespace and new lines
-  [[maybe_unused]] static std::string Trim(std::string String, std::string TrimTokens = " \t\n\r") {
-    return RightTrim(LeftTrim(String, TrimTokens), TrimTokens);
+  [[maybe_unused]] static fextl::string Trim(fextl::string String, std::string_view TrimTokens = " \t\n\r") {
+    return RightTrim(LeftTrim(std::move(String), TrimTokens), TrimTokens);
   }
+
 }

External/FEXCore/Source/Interface/Config/Config.cpp

@@ -1,36 +1,36 @@
 #include "Common/StringConv.h"
 #include "Common/StringUtils.h"
-#include "Common/Paths.h"
-#include "Utils/FileLoading.h"
 
 #include <FEXCore/Config/Config.h>
+#include <FEXCore/Utils/Allocator.h>
+#include <FEXCore/Utils/CPUInfo.h>
+#include <FEXCore/Utils/FileLoading.h>
 #include <FEXCore/Utils/LogManager.h>
+#include <FEXCore/fextl/fmt.h>
+#include <FEXCore/fextl/list.h>
+#include <FEXCore/fextl/map.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/unordered_map.h>
+#include <FEXCore/fextl/vector.h>
+#include <FEXHeaderUtils/Filesystem.h>
 
 #include <array>
 #include <assert.h>
 #include <cstdlib>
-#include <filesystem>
-#include <fstream>
 #include <functional>
-#include <map>
-#include <memory>
-#include <list>
 #include <optional>
 #include <stddef.h>
 #include <stdint.h>
-#include <string>
 #include <string_view>
-#include <sys/sysinfo.h>
 #include <system_error>
 #include <type_traits>
-#include <unordered_map>
 #include <utility>
-#include <vector>
 
 #include <tiny-json.h>
 
 namespace FEXCore::Context {
-  struct Context;
+  class Context;
 }
 
 namespace FEXCore::Config {
@@ -45,13 +45,13 @@ namespace DefaultValues {
 namespace JSON {
   struct JsonAllocator {
     jsonPool_t PoolObject;
-    std::unique_ptr<std::list<json_t>> json_objects;
+    fextl::unique_ptr<fextl::list<json_t>> json_objects;
   };
   static_assert(offsetof(JsonAllocator, PoolObject) == 0, "This needs to be at offset zero");
 
   json_t* PoolInit(jsonPool_t* Pool) {
     JsonAllocator* alloc = reinterpret_cast<JsonAllocator*>(Pool);
-    alloc->json_objects = std::make_unique<std::list<json_t>>();
+    alloc->json_objects = fextl::make_unique<fextl::list<json_t>>();
     return &*alloc->json_objects->emplace(alloc->json_objects->end());
   }
 
@@ -60,8 +60,8 @@ namespace JSON {
     return &*alloc->json_objects->emplace(alloc->json_objects->end());
   }
 
-  static void LoadJSonConfig(const std::string &Config, std::function<void(const char *Name, const char *ConfigSring)> Func) {
-    std::vector<char> Data;
+  static void LoadJSonConfig(const fextl::string &Config, std::function<void(const char *Name, const char *ConfigSring)> Func) {
+    fextl::vector<char> Data;
     if (!FEXCore::FileLoading::LoadFile(Data, Config)) {
       return;
     }
@@ -107,108 +107,75 @@ namespace JSON {
   }
 }
 
-  std::string GetDataDirectory() {
-    std::string DataDir{};
+  enum Paths {
+    PATH_DATA_DIR = 0,
+    PATH_CONFIG_DIR_LOCAL,
+    PATH_CONFIG_DIR_GLOBAL,
+    PATH_CONFIG_FILE_LOCAL,
+    PATH_CONFIG_FILE_GLOBAL,
+    PATH_LAST,
+  };
+  static std::array<fextl::string, Paths::PATH_LAST> Paths;
 
-    char const *HomeDir = Paths::GetHomeDirectory();
-    char const *DataXDG = getenv("XDG_DATA_HOME");
-    char const *DataOverride = getenv("FEX_APP_DATA_LOCATION");
-    if (DataOverride) {
-      // Data override will override the complete directory
-      DataDir = DataOverride;
-    }
-    else {
-      DataDir = DataXDG ?: HomeDir;
-      DataDir += "/.fex-emu/";
-    }
-    return DataDir;
+  void SetDataDirectory(const std::string_view Path) {
+    Paths[PATH_DATA_DIR] = Path;
   }
 
-  std::string GetConfigDirectory(bool Global) {
-    std::string ConfigDir;
-    if (Global) {
-      ConfigDir = GLOBAL_DATA_DIRECTORY;
-    }
-    else {
-      char const *HomeDir = Paths::GetHomeDirectory();
-      char const *ConfigXDG = getenv("XDG_CONFIG_HOME");
-      char const *ConfigOverride = getenv("FEX_APP_CONFIG_LOCATION");
-      if (ConfigOverride) {
-        // Config override completely overrides the config directory
-        ConfigDir = ConfigOverride;
-      }
-      else {
-        ConfigDir = ConfigXDG ? ConfigXDG : HomeDir;
-        ConfigDir += "/.fex-emu/";
-      }
-
-      // Ensure the folder structure is created for our configuration
-      std::error_code ec{};
-      if (!std::filesystem::exists(ConfigDir, ec) &&
-          !std::filesystem::create_directories(ConfigDir, ec)) {
-        // Let's go local in this case
-        return "./";
-      }
-    }
-
-    return ConfigDir;
+  void SetConfigDirectory(const std::string_view Path, bool Global) {
+    Paths[PATH_CONFIG_DIR_LOCAL + Global] = Path;
   }
 
-  std::string GetConfigFileLocation(bool Global) {
-    std::string ConfigFile{};
-    if (Global) {
-      ConfigFile = GetConfigDirectory(true) + "Config.json";
-    }
-    else {
-      const char *AppConfig = getenv("FEX_APP_CONFIG");
-      if (AppConfig) {
-        // App config environment variable overwrites only the config file
-        ConfigFile = AppConfig;
-      }
-      else {
-        ConfigFile = GetConfigDirectory(false) + "Config.json";
-      }
-    }
-    return ConfigFile;
+  void SetConfigFileLocation(const std::string_view Path, bool Global) {
+    Paths[PATH_CONFIG_FILE_LOCAL + Global] = Path;
   }
 
-  std::string GetApplicationConfig(const std::string &Filename, bool Global) {
-    std::string ConfigFile = GetConfigDirectory(Global);
+  fextl::string const& GetDataDirectory() {
+    return Paths[PATH_DATA_DIR];
+  }
+
+  fextl::string const& GetConfigDirectory(bool Global) {
+    return Paths[PATH_CONFIG_DIR_LOCAL + Global];
+  }
+
+  fextl::string const& GetConfigFileLocation(bool Global) {
+    return Paths[PATH_CONFIG_FILE_LOCAL + Global];
+  }
+
+  fextl::string GetApplicationConfig(const std::string_view Program, bool Global) {
+    fextl::string ConfigFile = GetConfigDirectory(Global);
 
-    std::error_code ec{};
     if (!Global &&
-        !std::filesystem::exists(ConfigFile, ec) &&
-        !std::filesystem::create_directories(ConfigFile, ec)) {
+        !FHU::Filesystem::Exists(ConfigFile) &&
+        !FHU::Filesystem::CreateDirectories(ConfigFile)) {
       LogMan::Msg::DFmt("Couldn't create config directory: '{}'", ConfigFile);
       // Let's go local in this case
-      return "./" + Filename + ".json";
+      return fextl::fmt::format("./{}.json", Program);
     }
 
     ConfigFile += "AppConfig/";
 
     // Attempt to create the local folder if it doesn't exist
     if (!Global &&
-        !std::filesystem::exists(ConfigFile, ec) &&
-        !std::filesystem::create_directories(ConfigFile, ec)) {
+        !FHU::Filesystem::Exists(ConfigFile) &&
+        !FHU::Filesystem::CreateDirectories(ConfigFile)) {
       // Let's go local in this case
-      return "./" + Filename + ".json";
+      return fextl::fmt::format("./{}.json", Program);
     }
 
-    ConfigFile += Filename + ".json";
-    return ConfigFile;
+    return fextl::fmt::format("{}{}.json", ConfigFile, Program);
   }
 
   void SetConfig(FEXCore::Context::Context *CTX, ConfigOption Option, uint64_t Config) {
   }
 
-  void SetConfig(FEXCore::Context::Context *CTX, ConfigOption Option, std::string const &Config) {
+  void SetConfig(FEXCore::Context::Context *CTX, ConfigOption Option, fextl::string const &Config) {
   }
 
   uint64_t GetConfig(FEXCore::Context::Context *CTX, ConfigOption Option) {
     return 0;
   }
 
-  static std::map<FEXCore::Config::LayerType, std::unique_ptr<FEXCore::Config::Layer>> ConfigLayers;
+  static fextl::map<FEXCore::Config::LayerType, fextl::unique_ptr<FEXCore::Config::Layer>> ConfigLayers;
   static FEXCore::Config::Layer *Meta{};
 
   constexpr std::array<FEXCore::Config::LayerType, 9> LoadOrder = {
@@ -268,17 +235,17 @@ namespace JSON {
     }
 
     // If an environment variable exists in both current meta and in the incoming layer then the meta layer value is overwritten
-    std::unordered_map<std::string, std::string> LookupMap;
+    fextl::unordered_map<fextl::string, fextl::string> LookupMap;
     const auto AddToMap = [&LookupMap](FEXCore::Config::LayerValue const &Value) {
       for (const auto &EnvVar : Value) {
         const auto ItEq = EnvVar.find_first_of('=');
-        if (ItEq == std::string::npos) {
+        if (ItEq == fextl::string::npos) {
           // Broken environment variable
           // Skip
           continue;
         }
-        auto Key = std::string(EnvVar.begin(), EnvVar.begin() + ItEq);
-        auto Value = std::string(EnvVar.begin() + ItEq + 1, EnvVar.end());
+        auto Key = fextl::string(EnvVar.begin(), EnvVar.begin() + ItEq);
+        auto Value = fextl::string(EnvVar.begin() + ItEq + 1, EnvVar.end());
 
         // Add the key to the map, overwriting whatever previous value was there
         LookupMap.insert_or_assign(std::move(Key), std::move(Value));
@@ -311,7 +278,7 @@ namespace JSON {
   }
 
   void Initialize() {
-    AddLayer(std::make_unique<MetaLayer>(FEXCore::Config::LayerType::LAYER_TOP));
+    AddLayer(fextl::make_unique<MetaLayer>(FEXCore::Config::LayerType::LAYER_TOP));
     Meta = ConfigLayers.begin()->second.get();
   }
 
@@ -329,16 +296,15 @@ namespace JSON {
     }
   }
 
-  std::string ExpandPath(std::string const &ContainerPrefix, std::string PathName) {
+  fextl::string ExpandPath(fextl::string const &ContainerPrefix, fextl::string PathName) {
     if (PathName.empty()) {
       return {};
     }
 
-    std::filesystem::path Path{PathName};
 
     // Expand home if it exists
-    if (Path.is_relative()) {
-      std::string Home = getenv("HOME") ?: "";
+    if (FHU::Filesystem::IsRelative(PathName)) {
+      fextl::string Home = getenv("HOME") ?: "";
       // Home expansion only works if it is the first character
       // This matches bash behaviour
       if (PathName.at(0) == '~') {
@@ -347,12 +313,15 @@ namespace JSON {
       }
 
       // Expand relative path to absolute
-      Path = std::filesystem::absolute(Path);
+      char ExistsTempPath[PATH_MAX];
+      char *RealPath = FHU::Filesystem::Absolute(PathName.c_str(), ExistsTempPath);
+      if (RealPath) {
+        PathName = RealPath;
+      }
 
       // Only return if it exists
-      std::error_code ec{};
-      if (std::filesystem::exists(Path, ec)) {
-        return Path;
+      if (FHU::Filesystem::Exists(PathName)) {
+        return PathName;
       }
     }
     else {
@@ -368,9 +337,9 @@ namespace JSON {
       // HostThunks: $CMAKE_INSTALL_PREFIX/lib/fex-emu/HostThunks/
       // GuestThunks: $CMAKE_INSTALL_PREFIX/share/fex-emu/GuestThunks/
       if (!ContainerPrefix.empty() && !PathName.empty()) {
-        if (!std::filesystem::exists(PathName)) {
+        if (!FHU::Filesystem::Exists(PathName)) {
           auto ContainerPath = ContainerPrefix + PathName;
-          if (std::filesystem::exists(ContainerPath)) {
+          if (FHU::Filesystem::Exists(ContainerPath)) {
             return ContainerPath;
           }
         }
@@ -379,15 +348,15 @@ namespace JSON {
     return {};
   }
 
+  constexpr char ContainerManager[] = "/run/host/container-manager";
 
-  std::string FindContainer() {
+  fextl::string FindContainer() {
     // We only support pressure-vessel at the moment
-    const static std::string ContainerManager = "/run/host/container-manager";
-    if (std::filesystem::exists(ContainerManager)) {
-      std::vector<char> Manager{};
+    if (FHU::Filesystem::Exists(ContainerManager)) {
+      fextl::vector<char> Manager{};
       if (FEXCore::FileLoading::LoadFile(Manager, ContainerManager)) {
         // Trim the whitespace, may contain a newline
-        std::string ManagerStr = Manager.data();
+        fextl::string ManagerStr = Manager.data();
         ManagerStr = FEXCore::StringUtils::Trim(ManagerStr);
         return ManagerStr;
       }
@@ -395,14 +364,13 @@ namespace JSON {
     return {};
   }
 
-  std::string FindContainerPrefix() {
+  fextl::string FindContainerPrefix() {
     // We only support pressure-vessel at the moment
-    const static std::string ContainerManager = "/run/host/container-manager";
-    if (std::filesystem::exists(ContainerManager)) {
-      std::vector<char> Manager{};
+    if (FHU::Filesystem::Exists(ContainerManager)) {
+      fextl::vector<char> Manager{};
       if (FEXCore::FileLoading::LoadFile(Manager, ContainerManager)) {
         // Trim the whitespace, may contain a newline
-        std::string ManagerStr = Manager.data();
+        fextl::string ManagerStr = Manager.data();
         ManagerStr = FEXCore::StringUtils::Trim(ManagerStr);
         if (strncmp(ManagerStr.data(), "pressure-vessel", Manager.size()) == 0) {
           // We are running inside of pressure vessel
@@ -424,7 +392,7 @@ namespace JSON {
       FEX_CONFIG_OPT(Cores, THREADS);
       if (Cores == 0) {
         // When the number of emulated CPU cores is zero then auto detect
-        FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_THREADS, std::to_string(get_nprocs_conf()));
+        FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_THREADS, fextl::fmt::format("{}", FEXCore::CPUInfo::CalculateNumberOfCPUs()));
       }
     }
 
@@ -443,7 +411,7 @@ namespace JSON {
 #endif
       if (Core > MaxCoreNumber || Core < MinCoreNumber) {
         // Sanitize the core option by setting the core to the JIT if invalid
-        FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_CORE, std::to_string(FEXCore::Config::CONFIG_IRJIT));
+        FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_CORE, fextl::fmt::format("{}", static_cast<uint32_t>(FEXCore::Config::CONFIG_IRJIT)));
       }
     }
 
@@ -457,8 +425,8 @@ namespace JSON {
       }
     }
 
-    std::string ContainerPrefix { FindContainerPrefix() };
-    auto ExpandPathIfExists = [&ContainerPrefix](FEXCore::Config::ConfigOption Config, std::string PathName) {
+    fextl::string ContainerPrefix { FindContainerPrefix() };
+    auto ExpandPathIfExists = [&ContainerPrefix](FEXCore::Config::ConfigOption Config, fextl::string PathName) {
       auto NewPath = ExpandPath(ContainerPrefix, PathName);
       if (!NewPath.empty()) {
         FEXCore::Config::EraseSet(Config, NewPath);
@@ -467,16 +435,15 @@ namespace JSON {
 
     if (FEXCore::Config::Exists(FEXCore::Config::CONFIG_ROOTFS)) {
       FEX_CONFIG_OPT(PathName, ROOTFS);
-      auto ExpandedString = ExpandPath(ContainerPrefix, PathName());
+      auto ExpandedString = ExpandPath(ContainerPrefix,PathName());
       if (!ExpandedString.empty()) {
         // Adjust the path if it ended up being relative
         FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_ROOTFS, ExpandedString);
       }
       else if (!PathName().empty()) {
         // If the filesystem doesn't exist then let's see if it exists in the fex-emu folder
-        std::string NamedRootFS = GetDataDirectory() + "RootFS/" + PathName();
-        std::error_code ec{};
-        if (std::filesystem::exists(NamedRootFS, ec)) {
+        fextl::string NamedRootFS = GetDataDirectory() + "RootFS/" + PathName();
+        if (FHU::Filesystem::Exists(NamedRootFS)) {
           FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_ROOTFS, NamedRootFS);
         }
       }
@@ -498,9 +465,8 @@ namespace JSON {
       }
       else if (!PathName().empty()) {
         // If the filesystem doesn't exist then let's see if it exists in the fex-emu folder
-        std::string NamedConfig = GetDataDirectory() + "ThunkConfigs/" + PathName();
-        std::error_code ec{};
-        if (std::filesystem::exists(NamedConfig, ec)) {
+        fextl::string NamedConfig = GetDataDirectory() + "ThunkConfigs/" + PathName();
+        if (FHU::Filesystem::Exists(NamedConfig)) {
           FEXCore::Config::EraseSet(FEXCore::Config::CONFIG_THUNKCONFIG, NamedConfig);
         }
       }
@@ -514,11 +480,11 @@ namespace JSON {
 
     if (FEXCore::Config::Exists(FEXCore::Config::CONFIG_SINGLESTEP)) {
       // Single stepping also enforces single instruction size blocks
-      Set(FEXCore::Config::ConfigOption::CONFIG_MAXINST, std::to_string(1u));
+      Set(FEXCore::Config::ConfigOption::CONFIG_MAXINST, "1");
     }
   }
 
-  void AddLayer(std::unique_ptr<FEXCore::Config::Layer> _Layer) {
+  void AddLayer(fextl::unique_ptr<FEXCore::Config::Layer> _Layer) {
     ConfigLayers.emplace(_Layer->GetLayerType(), std::move(_Layer));
   }
 
@@ -530,7 +496,7 @@ namespace JSON {
     return Meta->All(Option);
   }
 
-  std::optional<std::string*> Get(ConfigOption Option) {
+  std::optional<fextl::string*> Get(ConfigOption Option) {
     return Meta->Get(Option);
   }
 
@@ -571,7 +537,7 @@ namespace JSON {
   }
 
   template<>
-  std::string Value<std::string>::GetIfExists(FEXCore::Config::ConfigOption Option, std::string Default) {
+  fextl::string Value<fextl::string>::GetIfExists(FEXCore::Config::ConfigOption Option, fextl::string Default) {
     auto Value = FEXCore::Config::Get(Option);
     if (Value) {
       return **Value;
@@ -582,13 +548,13 @@ namespace JSON {
   }
 
   template<>
-  std::string Value<std::string>::GetIfExists(FEXCore::Config::ConfigOption Option, std::string_view Default) {
+  fextl::string Value<fextl::string>::GetIfExists(FEXCore::Config::ConfigOption Option, std::string_view Default) {
     auto Value = FEXCore::Config::Get(Option);
     if (Value) {
       return **Value;
     }
     else {
-      return std::string(Default);
+      return fextl::string(Default);
     }
   }
 
@@ -603,39 +569,39 @@ namespace JSON {
   template uint64_t Value<uint64_t>::GetIfExists(FEXCore::Config::ConfigOption Option, uint64_t Default);
 
   // Constructor
-  template Value<std::string>::Value(FEXCore::Config::ConfigOption _Option, std::string Default);
+  template Value<fextl::string>::Value(FEXCore::Config::ConfigOption _Option, fextl::string Default);
   template Value<bool>::Value(FEXCore::Config::ConfigOption _Option, bool Default);
   template Value<uint8_t>::Value(FEXCore::Config::ConfigOption _Option, uint8_t Default);
   template Value<uint64_t>::Value(FEXCore::Config::ConfigOption _Option, uint64_t Default);
 
   template<typename T>
-  void Value<T>::GetListIfExists(FEXCore::Config::ConfigOption Option, std::list<std::string> *List) {
+  void Value<T>::GetListIfExists(FEXCore::Config::ConfigOption Option, fextl::list<fextl::string> *List) {
     auto Value = FEXCore::Config::All(Option);
     List->clear();
     if (Value) {
       *List = **Value;
     }
   }
-  template void Value<std::string>::GetListIfExists(FEXCore::Config::ConfigOption Option, std::list<std::string> *List);
+  template void Value<fextl::string>::GetListIfExists(FEXCore::Config::ConfigOption Option, fextl::list<fextl::string> *List);
 
   // Application loaders
   class MainLoader final : public FEXCore::Config::OptionMapper {
   public:
     explicit MainLoader(FEXCore::Config::LayerType Type);
-    explicit MainLoader(std::string ConfigFile);
+    explicit MainLoader(fextl::string ConfigFile);
     void Load() override;
 
   private:
-    std::string Config;
+    fextl::string Config;
   };
 
   class AppLoader final : public FEXCore::Config::OptionMapper {
   public:
-    explicit AppLoader(const std::string& Filename, FEXCore::Config::LayerType Type);
+    explicit AppLoader(const fextl::string& Filename, FEXCore::Config::LayerType Type);
     void Load();
 
   private:
-    std::string Config;
+    fextl::string Config;
   };
 
   class EnvLoader final : public FEXCore::Config::Layer {
@@ -647,11 +613,11 @@ namespace JSON {
     char *const *envp;
   };
 
-  static const std::map<std::string, FEXCore::Config::ConfigOption, std::less<>> ConfigLookup = {{
+  static const fextl::map<fextl::string, FEXCore::Config::ConfigOption, std::less<>> ConfigLookup = {{
 #define OPT_BASE(type, group, enum, json, default) {#json, FEXCore::Config::ConfigOption::CONFIG_##enum},
 #include <FEXCore/Config/ConfigValues.inl>
   }};
-  static const std::vector<std::pair<const char*, FEXCore::Config::ConfigOption>> EnvConfigLookup = {{
+  static const fextl::vector<std::pair<const char*, FEXCore::Config::ConfigOption>> EnvConfigLookup = {{
 #define OPT_BASE(type, group, enum, json, default) {"FEX_" #enum, FEXCore::Config::ConfigOption::CONFIG_##enum},
 #include <FEXCore/Config/ConfigValues.inl>
   }};
@@ -672,7 +638,7 @@ namespace JSON {
     , Config{FEXCore::Config::GetConfigFileLocation(Type == FEXCore::Config::LayerType::LAYER_GLOBAL_MAIN)} {
   }
 
-  MainLoader::MainLoader(std::string ConfigFile)
+  MainLoader::MainLoader(fextl::string ConfigFile)
     : FEXCore::Config::OptionMapper(FEXCore::Config::LayerType::LAYER_MAIN)
     , Config{std::move(ConfigFile)} {
   }
@@ -683,7 +649,7 @@ namespace JSON {
     });
   }
 
-  AppLoader::AppLoader(const std::string& Filename, FEXCore::Config::LayerType Type)
+  AppLoader::AppLoader(const fextl::string& Filename, FEXCore::Config::LayerType Type)
     : FEXCore::Config::OptionMapper(Type) {
     const bool Global = Type == FEXCore::Config::LayerType::LAYER_GLOBAL_STEAM_APP ||
                         Type == FEXCore::Config::LayerType::LAYER_GLOBAL_APP;
@@ -705,12 +671,13 @@ namespace JSON {
   }
 
   void EnvLoader::Load() {
-    std::unordered_map<std::string_view, std::string_view> EnvMap;
+    using EnvMapType = fextl::unordered_map<std::string_view, std::string_view>;
+    EnvMapType EnvMap;
 
     for(const char *const *pvar=envp; pvar && *pvar; pvar++) {
       std::string_view Var(*pvar);
       size_t pos = Var.rfind('=');
-      if (std::string::npos == pos)
+      if (fextl::string::npos == pos)
         continue;
 
       std::string_view Key = Var.substr(0,pos);
@@ -719,10 +686,10 @@ namespace JSON {
 #define ENVLOADER
 #include <FEXCore/Config/ConfigOptions.inl>
 
-      EnvMap[Key]=Value;
+      EnvMap[Key] = Value;
     }
 
-    std::function GetVar = [=](const std::string_view id)  -> std::optional<std::string_view> {
+    auto GetVar = [](EnvMapType &EnvMap, const std::string_view id)  -> std::optional<std::string_view> {
       if (EnvMap.find(id) != EnvMap.end())
         return EnvMap.at(id);
 
@@ -739,31 +706,31 @@ namespace JSON {
     std::optional<std::string_view> Value;
 
     for (auto &it : EnvConfigLookup) {
-      if ((Value = GetVar(it.first)).has_value()) {
-        Set(it.second, std::string(*Value));
+      if ((Value = GetVar(EnvMap, it.first)).has_value()) {
+        Set(it.second, fextl::string(*Value));
       }
     }
   }
 
-  std::unique_ptr<FEXCore::Config::Layer> CreateGlobalMainLayer() {
-    return std::make_unique<FEXCore::Config::MainLoader>(FEXCore::Config::LayerType::LAYER_GLOBAL_MAIN);
+  fextl::unique_ptr<FEXCore::Config::Layer> CreateGlobalMainLayer() {
+    return fextl::make_unique<FEXCore::Config::MainLoader>(FEXCore::Config::LayerType::LAYER_GLOBAL_MAIN);
   }
 
-  std::unique_ptr<FEXCore::Config::Layer> CreateMainLayer(std::string const *File) {
+  fextl::unique_ptr<FEXCore::Config::Layer> CreateMainLayer(fextl::string const *File) {
     if (File) {
-      return std::make_unique<FEXCore::Config::MainLoader>(*File);
+      return fextl::make_unique<FEXCore::Config::MainLoader>(*File);
     }
     else {
-      return std::make_unique<FEXCore::Config::MainLoader>(FEXCore::Config::LayerType::LAYER_MAIN);
+      return fextl::make_unique<FEXCore::Config::MainLoader>(FEXCore::Config::LayerType::LAYER_MAIN);
     }
   }
 
-  std::unique_ptr<FEXCore::Config::Layer> CreateAppLayer(const std::string& Filename, FEXCore::Config::LayerType Type) {
-    return std::make_unique<FEXCore::Config::AppLoader>(Filename, Type);
+  fextl::unique_ptr<FEXCore::Config::Layer> CreateAppLayer(const fextl::string& Filename, FEXCore::Config::LayerType Type) {
+    return fextl::make_unique<FEXCore::Config::AppLoader>(Filename, Type);
   }
 
-  std::unique_ptr<FEXCore::Config::Layer> CreateEnvironmentLayer(char *const _envp[]) {
-    return std::make_unique<FEXCore::Config::EnvLoader>(_envp);
+  fextl::unique_ptr<FEXCore::Config::Layer> CreateEnvironmentLayer(char *const _envp[]) {
+    return fextl::make_unique<FEXCore::Config::EnvLoader>(_envp);
   }
 }
 

External/FEXCore/Source/Interface/Config/Config.json.in

@@ -53,7 +53,7 @@
       },
       "EnableAVX": {
         "Type": "bool",
-        "Default": "true",
+        "Default": "false",
         "Desc": [
           "Determines whether or not we use the expanded register file for AVX or not"
         ]
@@ -240,6 +240,17 @@
           "Also needs x86_64-linux-gnu-objdump in PATH.",
           "Can be very slow."
         ]
+      },
+      "InjectLibSegFault": {
+        "Type": "bool",
+        "Default": "false",
+        "Desc": [
+          "Sets the environment variable LD_PRELOAD=libSegFault.so",
+          "This allows the user to very easily enable libSegFault without dealing with environment variables",
+          "Very useful for applications that have launch scripts that set the variable to nothing at launch",
+          "Set this in an application configuration for injecting in to only specific applications.",
+          "\tNote: If x86/x86_64 libSegFault.so isn't installed then this option won't work."
+        ]
       }
     },
     "Logging": {
@@ -332,14 +343,12 @@
           "Useful for a process that keeps restarting and doesn't work"
         ]
       },
-      "x86dec_SynchronizeRIPOnAllBlocks": {
+      "HideHypervisorBit": {
         "Type": "bool",
         "Default": "false",
         "Desc": [
-          "An application that uses try-catch or longjump extensively needs the ability to do context aware state flushing",
-          "In the case of FEX's block-linking, it won't always ensure that RIP is synchronized.",
-          "If an exception occurs and RIP isn't synchronized, then FEX's exception stack restore may not long jump as expected",
-          "Can be useful for Wine applications that rely on stack unwinding"
+          "Hides the hypervisor CPUID bit when set.",
+          "Should only be used for applications that have issues with this set."
         ]
       }
     },

External/FEXCore/Source/Interface/Context/Context.cpp

@@ -1,4 +1,3 @@
-#include "Common/Paths.h"
 #include "Interface/Context/Context.h"
 #include "Interface/Core/Core.h"
 #include "Interface/Core/OpcodeDispatcher.h"
@@ -19,221 +18,80 @@ namespace FEXCore::HLE {
 
 namespace FEXCore::Context {
   void InitializeStaticTables(OperatingMode Mode) {
-    FEXCore::Paths::InitializePaths();
     X86Tables::InitializeInfoTables(Mode);
     IR::InstallOpcodeHandlers(Mode);
   }
 
-  void ShutdownStaticTables() {
-    FEXCore::Paths::ShutdownPaths();
+  fextl::unique_ptr<FEXCore::Context::Context> FEXCore::Context::Context::CreateNewContext() {
+    return fextl::make_unique<FEXCore::Context::ContextImpl>();
   }
 
-  FEXCore::Context::Context *CreateNewContext() {
-    return new FEXCore::Context::Context{};
+  bool FEXCore::Context::ContextImpl::InitializeContext() {
+    return FEXCore::CPU::CreateCPUCore(this);
   }
 
-  bool InitializeContext(FEXCore::Context::Context *CTX) {
-    return FEXCore::CPU::CreateCPUCore(CTX);
+  void FEXCore::Context::ContextImpl::SetExitHandler(ExitHandler handler) {
+    CustomExitHandler = std::move(handler);
   }
 
-  void DestroyContext(FEXCore::Context::Context *CTX) {
-    if (CTX->ParentThread) {
-      CTX->DestroyThread(CTX->ParentThread);
-    }
-    delete CTX;
+  ExitHandler FEXCore::Context::ContextImpl::GetExitHandler() const {
+    return CustomExitHandler;
   }
 
-  FEXCore::Core::InternalThreadState* InitCore(FEXCore::Context::Context *CTX, uint64_t InitialRIP, uint64_t StackPointer) {
-    return CTX->InitCore(InitialRIP, StackPointer);
+  void FEXCore::Context::ContextImpl::Stop() {
+    Stop(false);
   }
 
-  void SetExitHandler(FEXCore::Context::Context *CTX, ExitHandler handler) {
-    CTX->CustomExitHandler = std::move(handler);
+  void FEXCore::Context::ContextImpl::CompileRIP(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
+    CompileBlock(Thread->CurrentFrame, GuestRIP);
   }
 
-  ExitHandler GetExitHandler(const FEXCore::Context::Context *CTX) {
-    return CTX->CustomExitHandler;
+  FEXCore::Context::ExitReason FEXCore::Context::ContextImpl::GetExitReason() {
+    return ParentThread->ExitReason;
   }
 
-  void Run(FEXCore::Context::Context *CTX) {
-    CTX->Run();
+  bool FEXCore::Context::ContextImpl::IsDone() const {
+    return IsPaused();
   }
 
-  void Step(FEXCore::Context::Context *CTX) {
-    CTX->Step();
+  void FEXCore::Context::ContextImpl::GetCPUState(FEXCore::Core::CPUState *State) const {
+    memcpy(State, ParentThread->CurrentFrame, sizeof(FEXCore::Core::CPUState));
   }
 
-  void CompileRIP(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
-    Thread->CTX->CompileBlock(Thread->CurrentFrame, GuestRIP);
+  void FEXCore::Context::ContextImpl::SetCPUState(const FEXCore::Core::CPUState *State) {
+    memcpy(ParentThread->CurrentFrame, State, sizeof(FEXCore::Core::CPUState));
   }
 
-  FEXCore::Context::ExitReason RunUntilExit(FEXCore::Context::Context *CTX) {
-    return CTX->RunUntilExit();
+  void FEXCore::Context::ContextImpl::SetCustomCPUBackendFactory(CustomCPUFactoryType Factory) {
+    CustomCPUFactory = std::move(Factory);
   }
 
-  int GetProgramStatus(const FEXCore::Context::Context *CTX) {
-    return CTX->GetProgramStatus();
-  }
-
-  FEXCore::Context::ExitReason GetExitReason(const FEXCore::Context::Context *CTX) {
-    return CTX->ParentThread->ExitReason;
-  }
-
-  bool IsDone(const FEXCore::Context::Context *CTX) {
-    return CTX->IsPaused();
-  }
-
-  void GetCPUState(const FEXCore::Context::Context *CTX, FEXCore::Core::CPUState *State) {
-    memcpy(State, CTX->ParentThread->CurrentFrame, sizeof(FEXCore::Core::CPUState));
-  }
-
-  void SetCPUState(FEXCore::Context::Context *CTX, const FEXCore::Core::CPUState *State) {
-    memcpy(CTX->ParentThread->CurrentFrame, State, sizeof(FEXCore::Core::CPUState));
-  }
-
-  void Pause(FEXCore::Context::Context *CTX) {
-    CTX->Pause();
-  }
-
-  void Stop(FEXCore::Context::Context *CTX) {
-    CTX->Stop(false);
-  }
-
-  void SetCustomCPUBackendFactory(FEXCore::Context::Context *CTX, CustomCPUFactoryType Factory) {
-    CTX->CustomCPUFactory = std::move(Factory);
-  }
-
-  bool AddVirtualMemoryMapping([[maybe_unused]] FEXCore::Context::Context *CTX, [[maybe_unused]] uint64_t VirtualAddress, [[maybe_unused]] uint64_t PhysicalAddress, [[maybe_unused]] uint64_t Size) {
+  bool FEXCore::Context::ContextImpl::AddVirtualMemoryMapping([[maybe_unused]] uint64_t VirtualAddress, [[maybe_unused]] uint64_t PhysicalAddress, [[maybe_unused]] uint64_t Size) {
     return false;
   }
 
-  void RegisterExternalSyscallVisitor(FEXCore::Context::Context *CTX, [[maybe_unused]] uint64_t Syscall, [[maybe_unused]] FEXCore::HLE::SyscallVisitor *Visitor) {
+  HostFeatures FEXCore::Context::ContextImpl::GetHostFeatures() const {
+    return HostFeatures;
   }
 
-  HostFeatures GetHostFeatures(const FEXCore::Context::Context *CTX) {
-    return CTX->HostFeatures;
+  void FEXCore::Context::ContextImpl::SetSignalDelegator(FEXCore::SignalDelegator *_SignalDelegation) {
+    SignalDelegation = _SignalDelegation;
   }
 
-  void HandleCallback(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread, uint64_t RIP) {
-    CTX->HandleCallback(Thread, RIP);
+  void FEXCore::Context::ContextImpl::SetSyscallHandler(FEXCore::HLE::SyscallHandler *Handler) {
+    SyscallHandler = Handler;
+    SourcecodeResolver = Handler->GetSourcecodeResolver();
   }
 
-  void RegisterHostSignalHandler(FEXCore::Context::Context *CTX, int Signal, HostSignalDelegatorFunction Func, bool Required) {
-      CTX->RegisterHostSignalHandler(Signal, std::move(Func), Required);
+  FEXCore::CPUID::FunctionResults FEXCore::Context::ContextImpl::RunCPUIDFunction(uint32_t Function, uint32_t Leaf) {
+    return CPUID.RunFunction(Function, Leaf);
   }
 
-  void RegisterFrontendHostSignalHandler(FEXCore::Context::Context *CTX, int Signal, HostSignalDelegatorFunction Func, bool Required) {
-    CTX->RegisterFrontendHostSignalHandler(Signal, std::move(Func), Required);
+  FEXCore::CPUID::XCRResults FEXCore::Context::ContextImpl::RunXCRFunction(uint32_t Function) {
+    return CPUID.RunXCRFunction(Function);
   }
 
-  FEXCore::Core::InternalThreadState* CreateThread(FEXCore::Context::Context *CTX, FEXCore::Core::CPUState *NewThreadState, uint64_t ParentTID) {
-    return CTX->CreateThread(NewThreadState, ParentTID);
+  FEXCore::CPUID::FunctionResults FEXCore::Context::ContextImpl::RunCPUIDFunctionName(uint32_t Function, uint32_t Leaf, uint32_t CPU) {
+    return CPUID.RunFunctionName(Function, Leaf, CPU);
   }
-
-  void ExecutionThread(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread) {
-    return CTX->ExecutionThread(Thread);
-  }
-
-  void InitializeThread(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread) {
-    return CTX->InitializeThread(Thread);
-  }
-
-  void RunThread(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread) {
-    CTX->RunThread(Thread);
-  }
-
-  void StopThread(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread) {
-    CTX->StopThread(Thread);
-  }
-
-  void DestroyThread(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread) {
-    CTX->DestroyThread(Thread);
-  }
-
-  void CleanupAfterFork(FEXCore::Context::Context *CTX, FEXCore::Core::InternalThreadState *Thread) {
-    CTX->CleanupAfterFork(Thread);
-  }
-  
-  void SetSignalDelegator(FEXCore::Context::Context *CTX, FEXCore::SignalDelegator *SignalDelegation) {
-    CTX->SignalDelegation = SignalDelegation;
-  }
-
-  void SetSyscallHandler(FEXCore::Context::Context *CTX, FEXCore::HLE::SyscallHandler *Handler) {
-    CTX->SyscallHandler = Handler;
-    CTX->SourcecodeResolver = Handler->GetSourcecodeResolver();
-  }
-
-  FEXCore::CPUID::FunctionResults RunCPUIDFunction(FEXCore::Context::Context *CTX, uint32_t Function, uint32_t Leaf) {
-    return CTX->CPUID.RunFunction(Function, Leaf);
-  }
-
-  FEX_DEFAULT_VISIBILITY FEXCore::CPUID::FunctionResults RunCPUIDFunctionName(FEXCore::Context::Context *CTX, uint32_t Function, uint32_t Leaf, uint32_t CPU) {
-    return CTX->CPUID.RunFunctionName(Function, Leaf, CPU);
-  }
-
-  void SetAOTIRLoader(FEXCore::Context::Context *CTX, std::function<int(const std::string&)> CacheReader) {
-    CTX->SetAOTIRLoader(CacheReader);
-  }
-
-  void SetAOTIRWriter(FEXCore::Context::Context *CTX, std::function<std::unique_ptr<std::ofstream>(const std::string&)> CacheWriter) {
-    CTX->SetAOTIRWriter(CacheWriter);
-  }
-
-  void SetAOTIRRenamer(FEXCore::Context::Context *CTX, std::function<void(const std::string&)> CacheRenamer) {
-    CTX->SetAOTIRRenamer(CacheRenamer);
-  }
-
-  void FinalizeAOTIRCache(FEXCore::Context::Context *CTX) {
-    CTX->FinalizeAOTIRCache();
-  }
-
-  void WriteFilesWithCode(FEXCore::Context::Context *CTX, std::function<void(const std::string& fileid, const std::string& filename)> Writer) {
-    CTX->WriteFilesWithCode(Writer);
-  }
-
-  IR::AOTIRCacheEntry *LoadAOTIRCacheEntry(FEXCore::Context::Context *CTX, const std::string &Name) {
-    return CTX->LoadAOTIRCacheEntry(Name);
-  }
-  void UnloadAOTIRCacheEntry(FEXCore::Context::Context *CTX, IR::AOTIRCacheEntry *Entry) {
-    return CTX->UnloadAOTIRCacheEntry(Entry);
-  }
-
-  CustomIRResult AddCustomIREntrypoint(FEXCore::Context::Context *CTX, uintptr_t Entrypoint, std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)> Handler, void *Creator, void *Data) {
-    return CTX->AddCustomIREntrypoint(Entrypoint, Handler, Creator, Data);
-  }
-
-  void AppendThunkDefinitions(FEXCore::Context::Context *CTX, std::vector<FEXCore::IR::ThunkDefinition> const& Definitions) {
-    CTX->AppendThunkDefinitions(Definitions);
-  }
-
-namespace Debug {
-  void CompileRIP(FEXCore::Context::Context *CTX, uint64_t RIP) {
-    CTX->CompileRIP(CTX->ParentThread, RIP);
-  }
-  uint64_t GetThreadCount(FEXCore::Context::Context *CTX) {
-    return CTX->GetThreadCount();
-  }
-
-  FEXCore::Core::RuntimeStats *GetRuntimeStatsForThread(FEXCore::Context::Context *CTX, uint64_t Thread) {
-    return CTX->GetRuntimeStatsForThread(Thread);
-  }
-
-  bool GetDebugDataForRIP(FEXCore::Context::Context *CTX, uint64_t RIP, FEXCore::Core::DebugData *Data) {
-    return CTX->GetDebugDataForRIP(RIP, Data);
-  }
-
-  bool FindHostCodeForRIP(FEXCore::Context::Context *CTX, uint64_t RIP, uint8_t **Code) {
-    return CTX->FindHostCodeForRIP(RIP, Code);
-  }
-
-  // XXX:
-  // bool FindIRForRIP(FEXCore::Context::Context *CTX, uint64_t RIP, FEXCore::IR::IntrusiveIRList **ir) {
-  //   return CTX->FindIRForRIP(RIP, ir);
-  // }
-
-  // void SetIRForRIP(FEXCore::Context::Context *CTX, uint64_t RIP, FEXCore::IR::IntrusiveIRList *const ir) {
-  //   CTX->SetIRForRIP(RIP, ir);
-  // }
-}
-
 }

External/FEXCore/Source/Interface/Context/Context.h

@@ -1,7 +1,6 @@
 #pragma once
 
 #include "Common/JitSymbols.h"
-#include "FEXHeaderUtils/ScopedSignalMask.h"
 #include "Interface/Core/CPUID.h"
 #include "Interface/Core/X86HelperGen.h"
 #include "Interface/Core/ObjectCache/ObjectCacheService.h"
@@ -14,24 +13,25 @@
 #include <FEXCore/Core/SignalDelegator.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/Utils/CompilerDefs.h>
+#include <FEXCore/Utils/DeferredSignalMutex.h>
 #include <FEXCore/Utils/Event.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/set.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/unordered_map.h>
+#include <FEXCore/fextl/vector.h>
 #include <FEXHeaderUtils/Syscalls.h>
 #include <stdint.h>
 
-
 #include <atomic>
 #include <condition_variable>
 #include <functional>
 #include <istream>
-#include <map>
 #include <memory>
 #include <mutex>
 #include <shared_mutex>
 #include <stddef.h>
-#include <string>
-#include <unordered_map>
 #include <queue>
-#include <vector>
 
 namespace FEXCore {
 class CodeLoader;
@@ -70,7 +70,128 @@ namespace FEXCore::Context {
     MODE_SINGLESTEP = 1,
   };
 
-  struct Context {
+  class ContextImpl final : public FEXCore::Context::Context {
+    public:
+      // Context base class implementation.
+      bool InitializeContext() override;
+
+      FEXCore::Core::InternalThreadState* InitCore(uint64_t InitialRIP, uint64_t StackPointer) override;
+
+      void SetExitHandler(ExitHandler handler) override;
+      ExitHandler GetExitHandler() const override;
+
+      void Pause() override;
+      void Run() override;
+      void Stop() override;
+      void Step() override;
+
+      ExitReason RunUntilExit() override;
+
+      void CompileRIP(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) override;
+
+      int GetProgramStatus() const override;
+
+      ExitReason GetExitReason() override;
+
+      bool IsDone() const override;
+
+      void GetCPUState(FEXCore::Core::CPUState *State) const override;
+      void SetCPUState(const FEXCore::Core::CPUState *State) override;
+
+      void SetCustomCPUBackendFactory(CustomCPUFactoryType Factory) override;
+
+      bool AddVirtualMemoryMapping(uint64_t VirtualAddress, uint64_t PhysicalAddress, uint64_t Size) override;
+
+      HostFeatures GetHostFeatures() const override;
+
+      void HandleCallback(FEXCore::Core::InternalThreadState *Thread, uint64_t RIP) override;
+
+      uint64_t RestoreRIPFromHostPC(FEXCore::Core::InternalThreadState *Thread, uint64_t HostPC) override;
+
+      /**
+       * @brief Used to create FEX thread objects in preparation for creating a true OS thread. Does set a TID or PID.
+       *
+       * @param NewThreadState The initial thread state to setup for our state
+       * @param ParentTID The PID that was the parent thread that created this
+       *
+       * @return The InternalThreadState object that tracks all of the emulated thread's state
+       *
+       * Usecases:
+       *  OS thread Creation:
+       *    - Thread = CreateThread(NewState, PPID);
+       *    - InitializeThread(Thread);
+       *  OS fork (New thread created with a clone of thread state):
+       *    - clone{2, 3}
+       *    - Thread = CreateThread(CopyOfThreadState, PPID);
+       *    - ExecutionThread(Thread); // Starts executing without creating another host thread
+       *  Thunk callback executing guest code from native host thread
+       *    - Thread = CreateThread(NewState, PPID);
+       *    - InitializeThreadTLSData(Thread);
+       *    - HandleCallback(Thread, RIP);
+       */
+      FEXCore::Core::InternalThreadState* CreateThread(FEXCore::Core::CPUState *NewThreadState, uint64_t ParentTID) override;
+
+      // Public for threading
+      void ExecutionThread(FEXCore::Core::InternalThreadState *Thread) override;
+      /**
+       * @brief Initializes the OS thread object and prepares to start executing on that new OS thread
+       *
+       * @param Thread The internal FEX thread state object
+       *
+       * The OS thread will wait until RunThread is executed
+       */
+      void InitializeThread(FEXCore::Core::InternalThreadState *Thread) override;
+      /**
+       * @brief Starts the OS thread object to start executing guest code
+       *
+       * @param Thread The internal FEX thread state object
+       */
+      void RunThread(FEXCore::Core::InternalThreadState *Thread) override;
+      void StopThread(FEXCore::Core::InternalThreadState *Thread) override;
+      /**
+       * @brief Destroys this FEX thread object and stops tracking it internally
+       *
+       * @param Thread The internal FEX thread state object
+       */
+      void DestroyThread(FEXCore::Core::InternalThreadState *Thread) override;
+      void CleanupAfterFork(FEXCore::Core::InternalThreadState *Thread) override;
+      void SetSignalDelegator(FEXCore::SignalDelegator *SignalDelegation) override;
+      void SetSyscallHandler(FEXCore::HLE::SyscallHandler *Handler) override;
+
+      FEXCore::CPUID::FunctionResults RunCPUIDFunction(uint32_t Function, uint32_t Leaf) override;
+      FEXCore::CPUID::XCRResults RunXCRFunction(uint32_t Function) override;
+      FEXCore::CPUID::FunctionResults RunCPUIDFunctionName(uint32_t Function, uint32_t Leaf, uint32_t CPU) override;
+
+      FEXCore::IR::AOTIRCacheEntry *LoadAOTIRCacheEntry(const fextl::string& Name) override;
+      void UnloadAOTIRCacheEntry(FEXCore::IR::AOTIRCacheEntry *Entry) override;
+
+      void SetAOTIRLoader(std::function<int(const fextl::string&)> CacheReader) override {
+        IRCaptureCache.SetAOTIRLoader(CacheReader);
+      }
+      void SetAOTIRWriter(std::function<fextl::unique_ptr<AOTIRWriter>(const fextl::string&)> CacheWriter) override {
+        IRCaptureCache.SetAOTIRWriter(CacheWriter);
+      }
+      void SetAOTIRRenamer(std::function<void(const fextl::string&)> CacheRenamer) override {
+        IRCaptureCache.SetAOTIRRenamer(CacheRenamer);
+      }
+
+      void FinalizeAOTIRCache() override {
+        IRCaptureCache.FinalizeAOTIRCache();
+      }
+      void WriteFilesWithCode(std::function<void(const fextl::string& fileid, const fextl::string& filename)> Writer) override {
+        IRCaptureCache.WriteFilesWithCode(Writer);
+      }
+      void InvalidateGuestCodeRange(FEXCore::Core::InternalThreadState *Thread, uint64_t Start, uint64_t Length) override;
+      void InvalidateGuestCodeRange(FEXCore::Core::InternalThreadState *Thread, uint64_t Start, uint64_t Length, std::function<void(uint64_t start, uint64_t Length)> callback) override;
+      void MarkMemoryShared() override;
+
+      void ConfigureAOTGen(FEXCore::Core::InternalThreadState *Thread, fextl::set<uint64_t> *ExternalBranches, uint64_t SectionMaxAddress) override;
+      // returns false if a handler was already registered
+      CustomIRResult AddCustomIREntrypoint(uintptr_t Entrypoint, std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)> Handler, void *Creator = nullptr, void *Data = nullptr) override;
+
+      void AppendThunkDefinitions(fextl::vector<FEXCore::IR::ThunkDefinition> const& Definitions) override;
+
+    public:
     friend class FEXCore::HLE::SyscallHandler;
   #ifdef JIT_ARM64
     friend class FEXCore::CPU::Arm64JITCore;
@@ -116,15 +237,13 @@ namespace FEXCore::Context {
       FEX_CONFIG_OPT(ParanoidTSO, PARANOIDTSO);
       FEX_CONFIG_OPT(CacheObjectCodeCompilation, CACHEOBJECTCODECOMPILATION);
       FEX_CONFIG_OPT(x87ReducedPrecision, X87REDUCEDPRECISION);
-      FEX_CONFIG_OPT(x86dec_SynchronizeRIPOnAllBlocks, X86DEC_SYNCHRONIZERIPONALLBLOCKS);
-      FEX_CONFIG_OPT(EnableAVX, ENABLEAVX);
     } Config;
 
     FEXCore::HostFeatures HostFeatures;
 
     std::mutex ThreadCreationMutex;
     FEXCore::Core::InternalThreadState* ParentThread{};
-    std::vector<FEXCore::Core::InternalThreadState*> Threads;
+    fextl::vector<FEXCore::Core::InternalThreadState*> Threads;
     std::atomic_bool CoreShuttingDown{false};
     bool NeedToCheckXID{true};
 
@@ -140,48 +259,39 @@ namespace FEXCore::Context {
     FEXCore::CPUIDEmu CPUID;
     FEXCore::HLE::SyscallHandler *SyscallHandler{};
     FEXCore::HLE::SourcecodeResolver *SourcecodeResolver{};
-    std::unique_ptr<FEXCore::ThunkHandler> ThunkHandler;
-    std::unique_ptr<FEXCore::CPU::Dispatcher> Dispatcher;
+    fextl::unique_ptr<FEXCore::ThunkHandler> ThunkHandler;
+    fextl::unique_ptr<FEXCore::CPU::Dispatcher> Dispatcher;
 
     CustomCPUFactoryType CustomCPUFactory;
     FEXCore::Context::ExitHandler CustomExitHandler;
 
 #ifdef BLOCKSTATS
-    std::unique_ptr<FEXCore::BlockSamplingData> BlockData;
+    fextl::unique_ptr<FEXCore::BlockSamplingData> BlockData;
 #endif
 
     SignalDelegator *SignalDelegation{};
     X86GeneratedCode X86CodeGen;
 
-    Context();
-    ~Context();
+    ContextImpl();
+    ~ContextImpl();
 
-    FEXCore::Core::InternalThreadState* InitCore(uint64_t InitialRIP, uint64_t StackPointer);
-    FEXCore::Context::ExitReason RunUntilExit();
-    int GetProgramStatus() const;
     bool IsPaused() const { return !Running; }
-    void Pause();
-    void Run();
     void WaitForThreadsToRun();
-    void Step();
     void Stop(bool IgnoreCurrentThread);
     void WaitForIdle();
-    void StopThread(FEXCore::Core::InternalThreadState *Thread);
     void SignalThread(FEXCore::Core::InternalThreadState *Thread, FEXCore::Core::SignalEvent Event);
 
     bool GetGdbServerStatus() const { return DebugServer != nullptr; }
     void StartGdbServer();
     void StopGdbServer();
-    void HandleCallback(FEXCore::Core::InternalThreadState *Thread, uint64_t RIP);
-    void RegisterHostSignalHandler(int Signal, HostSignalDelegatorFunction Func, bool Required);
-    void RegisterFrontendHostSignalHandler(int Signal, HostSignalDelegatorFunction Func, bool Required);
 
     static void ThreadRemoveCodeEntry(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP);
     static void ThreadAddBlockLink(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestDestination, uintptr_t HostLink, const std::function<void()> &delinker);
 
     template<auto Fn>
     static uint64_t ThreadExitFunctionLink(FEXCore::Core::CpuStateFrame *Frame, uint64_t *record) {
-      FHU::ScopedSignalMaskWithSharedLock lk(Frame->Thread->CTX->CodeInvalidationMutex);
+      auto Thread = Frame->Thread;
+      ScopedDeferredSignalWithSharedLock lk(static_cast<ContextImpl*>(Thread->CTX)->CodeInvalidationMutex, Thread);
 
       return Fn(Frame, record);
     }
@@ -190,26 +300,16 @@ namespace FEXCore::Context {
     // Must be called from owning thread
     static void ThreadRemoveCodeEntryFromJit(FEXCore::Core::CpuStateFrame *Frame, uint64_t GuestRIP) {
       auto Thread = Frame->Thread;
-      
+
       LogMan::Throw::AFmt(Thread->ThreadManager.GetTID() == FHU::Syscalls::gettid(), "Must be called from owning thread {}, not {}", Thread->ThreadManager.GetTID(), FHU::Syscalls::gettid());
 
-      FHU::ScopedSignalMaskWithUniqueLock lk(Thread->CTX->CodeInvalidationMutex);
+      ScopedDeferredSignalWithUniqueLock lk(static_cast<ContextImpl*>(Thread->CTX)->CodeInvalidationMutex, Thread);
 
       ThreadRemoveCodeEntry(Thread, GuestRIP);
     }
 
-    // returns false if a handler was already registered
-    CustomIRResult AddCustomIREntrypoint(uintptr_t Entrypoint, std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)> Handler, void *Creator, void *Data);
-
     void RemoveCustomIREntrypoint(uintptr_t Entrypoint);
 
-    // Debugger interface
-    void CompileRIP(FEXCore::Core::InternalThreadState *Thread, uint64_t RIP);
-    uint64_t GetThreadCount() const;
-    FEXCore::Core::RuntimeStats *GetRuntimeStatsForThread(uint64_t Thread);
-    bool GetDebugDataForRIP(uint64_t RIP, FEXCore::Core::DebugData *Data);
-    bool FindHostCodeForRIP(uint64_t RIP, uint8_t **Code);
-
     struct GenerateIRResult {
       FEXCore::IR::IRListView* IRList;
       FEXCore::IR::RegisterAllocationData::UniquePtr RAData;
@@ -236,29 +336,6 @@ namespace FEXCore::Context {
     void CompileBlockJit(FEXCore::Core::CpuStateFrame *Frame, uint64_t GuestRIP);
 
     // Used for thread creation from syscalls
-    /**
-     * @brief Used to create FEX thread objects in preparation for creating a true OS thread. Does set a TID or PID.
-     *
-     * @param NewThreadState The initial thread state to setup for our state
-     * @param ParentTID The PID that was the parent thread that created this
-     *
-     * @return The InternalThreadState object that tracks all of the emulated thread's state
-     *
-     * Usecases:
-     *  OS thread Creation:
-     *    - Thread = CreateThread(NewState, PPID);
-     *    - InitializeThread(Thread);
-     *  OS fork (New thread created with a clone of thread state):
-     *    - clone{2, 3}
-     *    - Thread = CreateThread(CopyOfThreadState, PPID);
-     *    - ExecutionThread(Thread); // Starts executing without creating another host thread
-     *  Thunk callback executing guest code from native host thread
-     *    - Thread = CreateThread(NewState, PPID);
-     *    - InitializeThreadTLSData(Thread);
-     *    - HandleCallback(Thread, RIP);
-     */
-    FEXCore::Core::InternalThreadState* CreateThread(FEXCore::Core::CPUState *NewThreadState, uint64_t ParentTID);
-
     /**
      * @brief Initializes TID, PID and TLS data for a thread
      *
@@ -266,76 +343,57 @@ namespace FEXCore::Context {
      */
     void InitializeThreadTLSData(FEXCore::Core::InternalThreadState *Thread);
 
-    /**
-     * @brief Initializes the OS thread object and prepares to start executing on that new OS thread
-     *
-     * @param Thread The internal FEX thread state object
-     *
-     * The OS thread will wait until RunThread is executed
-     */
-    void InitializeThread(FEXCore::Core::InternalThreadState *Thread);
-
-    /**
-     * @brief Starts the OS thread object to start executing guest code
-     *
-     * @param Thread The internal FEX thread state object
-     */
-    void RunThread(FEXCore::Core::InternalThreadState *Thread);
-
-    /**
-     * @brief Destroys this FEX thread object and stops tracking it internally
-     *
-     * @param Thread The internal FEX thread state object
-     */
-    void DestroyThread(FEXCore::Core::InternalThreadState *Thread);
     void CopyMemoryMapping(FEXCore::Core::InternalThreadState *ParentThread, FEXCore::Core::InternalThreadState *ChildThread);
 
-    void CleanupAfterFork(FEXCore::Core::InternalThreadState *ExceptForThread);
-
-    std::vector<FEXCore::Core::InternalThreadState*>* GetThreads() { return &Threads; }
+    fextl::vector<FEXCore::Core::InternalThreadState*>* GetThreads() { return &Threads; }
 
     uint8_t GetGPRSize() const { return Config.Is64BitMode ? 8 : 4; }
 
-    IR::AOTIRCacheEntry *LoadAOTIRCacheEntry(const std::string &filename);
-    void UnloadAOTIRCacheEntry(IR::AOTIRCacheEntry *Entry);
-
     FEXCore::JITSymbols Symbols;
 
-    // Public for threading
-    void ExecutionThread(FEXCore::Core::InternalThreadState *Thread);
+    void GetVDSOSigReturn(VDSOSigReturn *VDSOPointers) override {
+      if (VDSOPointers->VDSO_kernel_sigreturn == nullptr) {
+        VDSOPointers->VDSO_kernel_sigreturn = reinterpret_cast<void*>(X86CodeGen.sigreturn_32);
+      }
 
-    void FinalizeAOTIRCache() {
-      IRCaptureCache.FinalizeAOTIRCache();
+      if (VDSOPointers->VDSO_kernel_rt_sigreturn == nullptr) {
+        VDSOPointers->VDSO_kernel_rt_sigreturn = reinterpret_cast<void*>(X86CodeGen.rt_sigreturn_32);
+      }
     }
 
-    void WriteFilesWithCode(std::function<void(const std::string& fileid, const std::string& filename)> Writer) {
-      IRCaptureCache.WriteFilesWithCode(Writer);
+    void IncrementIdleRefCount() override {
+      ++IdleWaitRefCount;
     }
 
-    void SetAOTIRLoader(std::function<int(const std::string&)> CacheReader) {
-      IRCaptureCache.SetAOTIRLoader(CacheReader);
+    FEXCore::Utils::PooledAllocatorVirtual OpDispatcherAllocator;
+    FEXCore::Utils::PooledAllocatorVirtual FrontendAllocator;
+
+    // If Atomic-based TSO emulation is enabled or not.
+    bool IsAtomicTSOEnabled() const { return AtomicTSOEmulationEnabled; }
+
+    void SetHardwareTSOSupport(bool HardwareTSOSupported) override {
+      SupportsHardwareTSO = HardwareTSOSupported;
+      UpdateAtomicTSOEmulationConfig();
     }
 
-    void SetAOTIRWriter(std::function<std::unique_ptr<std::ofstream>(const std::string&)> CacheWriter) {
-      IRCaptureCache.SetAOTIRWriter(CacheWriter);
-    }
+    void EnableExitOnHLT() override { ExitOnHLT = true; }
 
-    void SetAOTIRRenamer(std::function<void(const std::string&)> CacheRenamer) {
-      IRCaptureCache.SetAOTIRRenamer(CacheRenamer);
-    }
-
-    void AppendThunkDefinitions(std::vector<FEXCore::IR::ThunkDefinition> const& Definitions);
-
-    FEXCore::Utils::PooledAllocatorMMap OpDispatcherAllocator;
-    FEXCore::Utils::PooledAllocatorMMap FrontendAllocator;
-
-    void MarkMemoryShared();
-
-    bool IsTSOEnabled() { return (IsMemoryShared || !Config.TSOAutoMigration) && Config.TSOEnabled; }
+    bool ExitOnHLTEnabled() const { return ExitOnHLT; }
 
   protected:
     void ClearCodeCache(FEXCore::Core::InternalThreadState *Thread);
 
+    void UpdateAtomicTSOEmulationConfig() {
+      if (SupportsHardwareTSO) {
+        // If the hardware supports TSO then we don't need to emulate it through atomics.
+        AtomicTSOEmulationEnabled = false;
+      }
+      else {
+        // Atomic TSO emulation only enabled if the config option is enabled.
+        AtomicTSOEmulationEnabled = (IsMemoryShared || !Config.TSOAutoMigration) && Config.TSOEnabled;
+      }
+    }
+
   private:
     /**
      * @brief Does some final thread initialization
@@ -363,17 +421,20 @@ namespace FEXCore::Context {
 
     // Entry Cache
     std::mutex ExitMutex;
-    std::unique_ptr<GdbServer> DebugServer;
+    fextl::unique_ptr<GdbServer> DebugServer;
 
     IR::AOTIRCaptureCache IRCaptureCache;
-    std::unique_ptr<FEXCore::CodeSerialize::CodeObjectSerializeService> CodeObjectCacheService;
+    fextl::unique_ptr<FEXCore::CodeSerialize::CodeObjectSerializeService> CodeObjectCacheService;
 
     bool StartPaused = false;
     bool IsMemoryShared = false;
+    bool SupportsHardwareTSO = false;
+    bool AtomicTSOEmulationEnabled = true;
+    bool ExitOnHLT = false;
     FEX_CONFIG_OPT(AppFilename, APP_FILENAME);
 
     std::shared_mutex CustomIRMutex;
-    std::unordered_map<uint64_t, std::tuple<std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)>, void *, void *>> CustomIRHandlers;
+    fextl::unordered_map<uint64_t, std::tuple<std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)>, void *, void *>> CustomIRHandlers;
     FEXCore::CPU::CPUBackendFeatures BackendFeatures;
     FEXCore::CPU::DispatcherConfig DispatcherConfig;
   };

External/FEXCore/Source/Interface/Core/ArchHelpers/Arm64Emitter.cpp

@@ -1,10 +1,12 @@
 #include "Interface/Core/ArchHelpers/Arm64Emitter.h"
+#include "FEXCore/Utils/AllocatorHooks.h"
 #include "Interface/Core/ArchHelpers/CodeEmitter/Emitter.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
 #include "Interface/Context/Context.h"
 #include "Interface/HLE/Thunks/Thunks.h"
 
 #include <FEXCore/Core/CoreState.h>
+#include <FEXCore/Utils/BitUtils.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/MathUtils.h>
 
@@ -20,16 +22,36 @@
 namespace FEXCore::CPU {
 
 // We want vixl to not allocate a default buffer. Jit and dispatcher will manually create one.
-Arm64Emitter::Arm64Emitter(FEXCore::Context::Context *ctx, size_t size)
-  : Emitter(size ? (uint8_t*)FEXCore::Allocator::mmap(nullptr, size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) : nullptr, size)
+Arm64Emitter::Arm64Emitter(FEXCore::Context::ContextImpl *ctx, size_t size)
+  : Emitter(size ? (uint8_t*)FEXCore::Allocator::VirtualAlloc(size, true) : nullptr, size)
   , EmitterCTX {ctx} {
   CPU.SetUp();
+
+  // Number of register available is dependent on what operating mode the proccess is in.
+  if (EmitterCTX->Config.Is64BitMode()) {
+    ConfiguredGPRs = NumGPRs64;
+    ConfiguredSRAGPRs = NumSRAGPRs64;
+    ConfiguredGPRPairs = NumGPRPairs64;
+    ConfiguredFPRs = NumFPRs64;
+    ConfiguredSRAFPRs = NumSRAFPRs64;
+    ConfiguredDynamicGPRs = NumGPRs64 - NumGPRs64; // Will be zero, just to be consistent with 32-bit side
+    ConfiguredDynamicRegisterBase = nullptr;
+  }
+  else {
+    ConfiguredGPRs = NumGPRs32;
+    ConfiguredSRAGPRs = NumSRAGPRs32;
+    ConfiguredGPRPairs = NumGPRPairs32;
+    ConfiguredFPRs = NumFPRs32;
+    ConfiguredSRAFPRs = NumSRAFPRs32;
+    ConfiguredDynamicGPRs = NumGPRs32 - NumGPRs64; // Will be 8
+    ConfiguredDynamicRegisterBase = &RA64[9];
+  }
 }
 
 Arm64Emitter::~Arm64Emitter() {
   auto BufferSize = GetBufferSize();
   if (BufferSize) {
-    FEXCore::Allocator::munmap(GetBufferBase(), BufferSize);
+    FEXCore::Allocator::VirtualFree(GetBufferBase(), BufferSize);
   }
 }
 
@@ -111,7 +133,11 @@ void Arm64Emitter::LoadConstant(ARMEmitter::Size s, ARMEmitter::Register Reg, ui
 void Arm64Emitter::PushCalleeSavedRegisters() {
   // We need to save pairs of registers
   // We save r19-r30
-  const std::array<std::pair<ARMEmitter::XRegister, ARMEmitter::XRegister>, 6> CalleeSaved = {{
+  const fextl::vector<std::pair<ARMEmitter::XRegister, ARMEmitter::XRegister>> CalleeSaved = {{
+#ifdef _WIN32
+    // Platform register, Just save it twice to make logic easy.
+    {ARMEmitter::XReg::x18, ARMEmitter::XReg::x18},
+#endif
     {ARMEmitter::XReg::x19, ARMEmitter::XReg::x20},
     {ARMEmitter::XReg::x21, ARMEmitter::XReg::x22},
     {ARMEmitter::XReg::x23, ARMEmitter::XReg::x24},
@@ -175,13 +201,17 @@ void Arm64Emitter::PopCalleeSavedRegisters() {
         32);
   }
 
-  const std::array<std::pair<ARMEmitter::XRegister, ARMEmitter::XRegister>, 6> CalleeSaved = {{
+  const fextl::vector<std::pair<ARMEmitter::XRegister, ARMEmitter::XRegister>> CalleeSaved = {{
     {ARMEmitter::XReg::x29, ARMEmitter::XReg::x30},
     {ARMEmitter::XReg::x27, ARMEmitter::XReg::x28},
     {ARMEmitter::XReg::x25, ARMEmitter::XReg::x26},
     {ARMEmitter::XReg::x23, ARMEmitter::XReg::x24},
     {ARMEmitter::XReg::x21, ARMEmitter::XReg::x22},
     {ARMEmitter::XReg::x19, ARMEmitter::XReg::x20},
+#ifdef _WIN32
+    // Platform register.
+    {ARMEmitter::XReg::x18, ARMEmitter::XReg::zr},
+#endif
   }};
 
   for (auto &RegPair : CalleeSaved) {
@@ -189,12 +219,12 @@ void Arm64Emitter::PopCalleeSavedRegisters() {
   }
 }
 
-void Arm64Emitter::SpillStaticRegs(bool FPRs, uint32_t GPRSpillMask, uint32_t FPRSpillMask) {
+void Arm64Emitter::SpillStaticRegs(FEXCore::ARMEmitter::Register TmpReg, bool FPRs, uint32_t GPRSpillMask, uint32_t FPRSpillMask) {
   if (!StaticRegisterAllocation()) {
     return;
   }
 
-  for (size_t i = 0; i < SRA64.size(); i+=2) {
+  for (size_t i = 0; i < ConfiguredSRAGPRs; i+=2) {
     auto Reg1 = SRA64[i];
     auto Reg2 = SRA64[i+1];
     if (((1U << Reg1.Idx()) & GPRSpillMask) &&
@@ -211,22 +241,20 @@ void Arm64Emitter::SpillStaticRegs(bool FPRs, uint32_t GPRSpillMask, uint32_t FP
 
   if (FPRs) {
     if (EmitterCTX->HostFeatures.SupportsAVX) {
-      for (size_t i = 0; i < SRAFPR.size(); i++) {
+      for (size_t i = 0; i < ConfiguredSRAFPRs; i++) {
         const auto Reg = SRAFPR[i];
 
         if (((1U << Reg.Idx()) & FPRSpillMask) != 0) {
           mov(ARMEmitter::Size::i64Bit, TMP4.R(), offsetof(Core::CpuStateFrame, State.xmm.avx.data[i][0]));
-          st1b<ARMEmitter::SubRegSize::i8Bit>(Reg, PRED_TMP_32B, STATE.R(), TMP4.R());
+          st1b<ARMEmitter::SubRegSize::i8Bit>(Reg.Z(), PRED_TMP_32B, STATE.R(), TMP4.R());
         }
       }
     } else {
       if (GPRSpillMask && FPRSpillMask == ~0U) {
         // Optimize the common case where we can spill four registers per instruction
-        auto TmpReg = SRA64[__builtin_ffs(GPRSpillMask)];
-
         // Load the sse offset in to the temporary register
         add(ARMEmitter::Size::i64Bit, TmpReg, STATE.R(), offsetof(FEXCore::Core::CpuStateFrame, State.xmm.sse.data[0][0]));
-        for (size_t i = 0; i < SRAFPR.size(); i += 4) {
+        for (size_t i = 0; i < ConfiguredSRAFPRs; i += 4) {
           const auto Reg1 = SRAFPR[i];
           const auto Reg2 = SRAFPR[i + 1];
           const auto Reg3 = SRAFPR[i + 2];
@@ -235,7 +263,7 @@ void Arm64Emitter::SpillStaticRegs(bool FPRs, uint32_t GPRSpillMask, uint32_t FP
         }
       }
       else {
-        for (size_t i = 0; i < SRAFPR.size(); i += 2) {
+        for (size_t i = 0; i < ConfiguredSRAFPRs; i += 2) {
           const auto Reg1 = SRAFPR[i];
           const auto Reg2 = SRAFPR[i + 1];
 
@@ -269,22 +297,22 @@ void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRF
       ptrue<ARMEmitter::SubRegSize::i8Bit>(PRED_TMP_16B, ARMEmitter::PredicatePattern::SVE_VL16);
       ptrue<ARMEmitter::SubRegSize::i8Bit>(PRED_TMP_32B, ARMEmitter::PredicatePattern::SVE_VL32);
 
-      for (size_t i = 0; i < SRAFPR.size(); i++) {
+      for (size_t i = 0; i < ConfiguredSRAFPRs; i++) {
         const auto Reg = SRAFPR[i];
         if (((1U << Reg.Idx()) & FPRFillMask) != 0) {
           mov(ARMEmitter::Size::i64Bit, TMP4.R(), offsetof(Core::CpuStateFrame, State.xmm.avx.data[i][0]));
-          ld1b<ARMEmitter::SubRegSize::i8Bit>(Reg, PRED_TMP_32B, STATE.R(), TMP4.R());
+          ld1b<ARMEmitter::SubRegSize::i8Bit>(Reg.Z(), PRED_TMP_32B.Zeroing(), STATE.R(), TMP4.R());
         }
       }
     } else {
       if (GPRFillMask && FPRFillMask == ~0U) {
         // Optimize the common case where we can fill four registers per instruction.
         // Use one of the filling static registers before we fill it.
-        auto TmpReg = SRA64[__builtin_ffs(GPRFillMask)];
+        auto TmpReg = SRA64[FindFirstSetBit(GPRFillMask)];
 
         // Load the sse offset in to the temporary register
         add(ARMEmitter::Size::i64Bit, TmpReg, STATE.R(), offsetof(FEXCore::Core::CpuStateFrame, State.xmm.sse.data[0][0]));
-        for (size_t i = 0; i < SRAFPR.size(); i += 4) {
+        for (size_t i = 0; i < ConfiguredSRAFPRs; i += 4) {
           const auto Reg1 = SRAFPR[i];
           const auto Reg2 = SRAFPR[i + 1];
           const auto Reg3 = SRAFPR[i + 2];
@@ -293,7 +321,7 @@ void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRF
         }
       }
       else {
-        for (size_t i = 0; i < SRAFPR.size(); i += 2) {
+        for (size_t i = 0; i < ConfiguredSRAFPRs; i += 2) {
           const auto Reg1 = SRAFPR[i];
           const auto Reg2 = SRAFPR[i + 1];
 
@@ -312,7 +340,7 @@ void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRF
     }
   }
 
-  for (size_t i = 0; i < SRA64.size(); i+=2) {
+  for (size_t i = 0; i < ConfiguredSRAGPRs; i+=2) {
     auto Reg1 = SRA64[i];
     auto Reg2 = SRA64[i+1];
     if (((1U << Reg1.Idx()) & GPRFillMask) &&
@@ -330,10 +358,10 @@ void Arm64Emitter::FillStaticRegs(bool FPRs, uint32_t GPRFillMask, uint32_t FPRF
 
 void Arm64Emitter::PushDynamicRegsAndLR(FEXCore::ARMEmitter::Register TmpReg) {
   const auto CanUseSVE = EmitterCTX->HostFeatures.SupportsAVX;
-  const auto GPRSize = 1 * Core::CPUState::GPR_REG_SIZE;
+  const auto GPRSize = (ConfiguredDynamicGPRs + 1) * Core::CPUState::GPR_REG_SIZE;
   const auto FPRRegSize = CanUseSVE ? Core::CPUState::XMM_AVX_REG_SIZE
                                     : Core::CPUState::XMM_SSE_REG_SIZE;
-  const auto FPRSize = RAFPR.size() * FPRRegSize;
+  const auto FPRSize = ConfiguredFPRs * FPRRegSize;
   const uint64_t SPOffset = AlignUp(GPRSize + FPRSize, 16);
 
   sub(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, SPOffset);
@@ -342,17 +370,17 @@ void Arm64Emitter::PushDynamicRegsAndLR(FEXCore::ARMEmitter::Register TmpReg) {
   add(ARMEmitter::Size::i64Bit, TmpReg, ARMEmitter::Reg::rsp, 0);
 
   if (CanUseSVE) {
-    for (size_t i = 0; i < RAFPR.size(); i += 4) {
+    for (size_t i = 0; i < ConfiguredFPRs; i += 4) {
       const auto Reg1 = RAFPR[i];
       const auto Reg2 = RAFPR[i + 1];
       const auto Reg3 = RAFPR[i + 2];
       const auto Reg4 = RAFPR[i + 3];
-      st4b(Reg1, Reg2, Reg3, Reg4, PRED_TMP_32B, TmpReg, 0);
+      st4b(Reg1.Z(), Reg2.Z(), Reg3.Z(), Reg4.Z(), PRED_TMP_32B, TmpReg, 0);
       add(ARMEmitter::Size::i64Bit, TmpReg, TmpReg, 32 * 4);
     }
   } else {
-    static_assert(RAFPR.size() % 4 == 0, "Needs to have multiple of 4 FPRs for RA");
-    for (size_t i = 0; i < RAFPR.size(); i += 4) {
+    LOGMAN_THROW_AA_FMT(ConfiguredFPRs % 4 == 0, "Needs to have multiple of 4 FPRs for RA");
+    for (size_t i = 0; i < ConfiguredFPRs; i += 4) {
       const auto Reg1 = RAFPR[i];
       const auto Reg2 = RAFPR[i + 1];
       const auto Reg3 = RAFPR[i + 2];
@@ -361,6 +389,14 @@ void Arm64Emitter::PushDynamicRegsAndLR(FEXCore::ARMEmitter::Register TmpReg) {
     }
   }
 
+  if (ConfiguredDynamicRegisterBase) {
+    for (size_t i = 0; i < ConfiguredDynamicGPRs; i += 2) {
+      const auto Reg1 = ConfiguredDynamicRegisterBase[i];
+      const auto Reg2 = ConfiguredDynamicRegisterBase[i + 1];
+      stp<ARMEmitter::IndexType::POST>(Reg1.X(), Reg2.X(), TmpReg, 16);
+    }
+  }
+
   str(ARMEmitter::XReg::lr, TmpReg, 0);
 }
 
@@ -368,16 +404,16 @@ void Arm64Emitter::PopDynamicRegsAndLR() {
   const auto CanUseSVE = EmitterCTX->HostFeatures.SupportsAVX;
 
   if (CanUseSVE) {
-    for (size_t i = 0; i < RAFPR.size(); i += 4) {
+    for (size_t i = 0; i < ConfiguredFPRs; i += 4) {
       const auto Reg1 = RAFPR[i];
       const auto Reg2 = RAFPR[i + 1];
       const auto Reg3 = RAFPR[i + 2];
       const auto Reg4 = RAFPR[i + 3];
-      ld4b(Reg1, Reg2, Reg3, Reg4, PRED_TMP_32B, ARMEmitter::Reg::rsp);
+      ld4b(Reg1.Z(), Reg2.Z(), Reg3.Z(), Reg4.Z(), PRED_TMP_32B.Zeroing(), ARMEmitter::Reg::rsp);
       add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, 32 * 4);
     }
   } else {
-    for (size_t i = 0; i < RAFPR.size(); i += 4) {
+    for (size_t i = 0; i < ConfiguredFPRs; i += 4) {
       const auto Reg1 = RAFPR[i];
       const auto Reg2 = RAFPR[i + 1];
       const auto Reg3 = RAFPR[i + 2];
@@ -386,6 +422,14 @@ void Arm64Emitter::PopDynamicRegsAndLR() {
     }
   }
 
+  if (ConfiguredDynamicRegisterBase) {
+    for (size_t i = 0; i < ConfiguredDynamicGPRs; i += 2) {
+      const auto Reg1 = ConfiguredDynamicRegisterBase[i];
+      const auto Reg2 = ConfiguredDynamicRegisterBase[i + 1];
+      ldp<ARMEmitter::IndexType::POST>(Reg1.X(), Reg2.X(), ARMEmitter::Reg::rsp, 16);
+    }
+  }
+
   ldr<ARMEmitter::IndexType::POST>(ARMEmitter::XReg::lr, ARMEmitter::Reg::rsp, 16);
 }
 

External/FEXCore/Source/Interface/Core/ArchHelpers/Arm64Emitter.h

@@ -28,35 +28,83 @@
 #include <utility>
 
 namespace FEXCore::CPU {
-// All but x29 are caller saved
+// Register x18 is unused in the current configuration.
+// This is due to it being a platform register on wine platforms.
+// TODO: Allow x18 register allocation in the future to gain one more register.
+
+// All but x19 and x29 are caller saved
 constexpr std::array<FEXCore::ARMEmitter::Register, 16> SRA64 = {
-  FEXCore::ARMEmitter::Reg::r4, FEXCore::ARMEmitter::Reg::r5, FEXCore::ARMEmitter::Reg::r6, FEXCore::ARMEmitter::Reg::r7, FEXCore::ARMEmitter::Reg::r8, FEXCore::ARMEmitter::Reg::r9, FEXCore::ARMEmitter::Reg::r10, FEXCore::ARMEmitter::Reg::r11,
-  FEXCore::ARMEmitter::Reg::r12, FEXCore::ARMEmitter::Reg::r18, FEXCore::ARMEmitter::Reg::r17, FEXCore::ARMEmitter::Reg::r16, FEXCore::ARMEmitter::Reg::r15, FEXCore::ARMEmitter::Reg::r14, FEXCore::ARMEmitter::Reg::r13, FEXCore::ARMEmitter::Reg::r29
+  FEXCore::ARMEmitter::Reg::r4, FEXCore::ARMEmitter::Reg::r5,
+  FEXCore::ARMEmitter::Reg::r6, FEXCore::ARMEmitter::Reg::r7,
+  FEXCore::ARMEmitter::Reg::r8, FEXCore::ARMEmitter::Reg::r9,
+  FEXCore::ARMEmitter::Reg::r10, FEXCore::ARMEmitter::Reg::r11,
+  // Registers that don't exist on 32-bit
+  FEXCore::ARMEmitter::Reg::r12, FEXCore::ARMEmitter::Reg::r13,
+  FEXCore::ARMEmitter::Reg::r14, FEXCore::ARMEmitter::Reg::r15,
+  FEXCore::ARMEmitter::Reg::r16, FEXCore::ARMEmitter::Reg::r17,
+  FEXCore::ARMEmitter::Reg::r19, FEXCore::ARMEmitter::Reg::r29
 };
 
-// All are callee saved
-constexpr std::array<FEXCore::ARMEmitter::Register, 9> RA64 = {
-  FEXCore::ARMEmitter::Reg::r20, FEXCore::ARMEmitter::Reg::r21, FEXCore::ARMEmitter::Reg::r22, FEXCore::ARMEmitter::Reg::r23, FEXCore::ARMEmitter::Reg::r24, FEXCore::ARMEmitter::Reg::r25, FEXCore::ARMEmitter::Reg::r26, FEXCore::ARMEmitter::Reg::r27,
-  FEXCore::ARMEmitter::Reg::r19
+constexpr std::array<FEXCore::ARMEmitter::Register, 9 + 8> RA64 = {
+  // All these callee saved
+  FEXCore::ARMEmitter::Reg::r20, FEXCore::ARMEmitter::Reg::r21,
+  FEXCore::ARMEmitter::Reg::r22, FEXCore::ARMEmitter::Reg::r23,
+  FEXCore::ARMEmitter::Reg::r24, FEXCore::ARMEmitter::Reg::r25,
+  FEXCore::ARMEmitter::Reg::r26, FEXCore::ARMEmitter::Reg::r27,
+  FEXCore::ARMEmitter::Reg::r30,
+
+  // Registers only available on 32-bit
+  // All these are caller saved (except for r19).
+  FEXCore::ARMEmitter::Reg::r12, FEXCore::ARMEmitter::Reg::r13,
+  FEXCore::ARMEmitter::Reg::r14, FEXCore::ARMEmitter::Reg::r15,
+  FEXCore::ARMEmitter::Reg::r16, FEXCore::ARMEmitter::Reg::r17,
+  FEXCore::ARMEmitter::Reg::r19, FEXCore::ARMEmitter::Reg::r29
 };
 
-constexpr std::array<std::pair<FEXCore::ARMEmitter::Register, FEXCore::ARMEmitter::Register>, 4>  RA64Pair = {{
+constexpr std::array<std::pair<FEXCore::ARMEmitter::Register, FEXCore::ARMEmitter::Register>, 4 + 3> RA64Pair = {{
   {FEXCore::ARMEmitter::Reg::r20, FEXCore::ARMEmitter::Reg::r21},
   {FEXCore::ARMEmitter::Reg::r22, FEXCore::ARMEmitter::Reg::r23},
   {FEXCore::ARMEmitter::Reg::r24, FEXCore::ARMEmitter::Reg::r25},
   {FEXCore::ARMEmitter::Reg::r26, FEXCore::ARMEmitter::Reg::r27},
+
+  // Registers only available on 32-bit
+  {FEXCore::ARMEmitter::Reg::r12, FEXCore::ARMEmitter::Reg::r13},
+  {FEXCore::ARMEmitter::Reg::r14, FEXCore::ARMEmitter::Reg::r15},
+  {FEXCore::ARMEmitter::Reg::r16, FEXCore::ARMEmitter::Reg::r17}
 }};
 
 // All are caller saved
 constexpr std::array<FEXCore::ARMEmitter::VRegister, 16> SRAFPR = {
-  FEXCore::ARMEmitter::VReg::v16, FEXCore::ARMEmitter::VReg::v17, FEXCore::ARMEmitter::VReg::v18, FEXCore::ARMEmitter::VReg::v19, FEXCore::ARMEmitter::VReg::v20, FEXCore::ARMEmitter::VReg::v21, FEXCore::ARMEmitter::VReg::v22, FEXCore::ARMEmitter::VReg::v23,
-  FEXCore::ARMEmitter::VReg::v24, FEXCore::ARMEmitter::VReg::v25, FEXCore::ARMEmitter::VReg::v26, FEXCore::ARMEmitter::VReg::v27, FEXCore::ARMEmitter::VReg::v28, FEXCore::ARMEmitter::VReg::v29, FEXCore::ARMEmitter::VReg::v30, FEXCore::ARMEmitter::VReg::v31
+  FEXCore::ARMEmitter::VReg::v16, FEXCore::ARMEmitter::VReg::v17,
+  FEXCore::ARMEmitter::VReg::v18, FEXCore::ARMEmitter::VReg::v19,
+  FEXCore::ARMEmitter::VReg::v20, FEXCore::ARMEmitter::VReg::v21,
+  FEXCore::ARMEmitter::VReg::v22, FEXCore::ARMEmitter::VReg::v23,
+
+  // Registers that don't exist on 32-bit
+  FEXCore::ARMEmitter::VReg::v24, FEXCore::ARMEmitter::VReg::v25,
+  FEXCore::ARMEmitter::VReg::v26, FEXCore::ARMEmitter::VReg::v27,
+  FEXCore::ARMEmitter::VReg::v28, FEXCore::ARMEmitter::VReg::v29,
+  FEXCore::ARMEmitter::VReg::v30, FEXCore::ARMEmitter::VReg::v31
 };
 
 //  v8..v15 = (lower 64bits) Callee saved
-constexpr std::array<FEXCore::ARMEmitter::VRegister, 12> RAFPR = {
-/*FEXCore::ARMEmitter::VReg::v0,  FEXCore::ARMEmitter::VReg::v1,  FEXCore::ARMEmitter::VReg::v2,  FEXCore::ARMEmitter::VReg::v3,*/FEXCore::ARMEmitter::VReg::v4,  FEXCore::ARMEmitter::VReg::v5,  FEXCore::ARMEmitter::VReg::v6,  FEXCore::ARMEmitter::VReg::v7,  // FEXCore::ARMEmitter::VReg::v0 ~ FEXCore::ARMEmitter::VReg::v3 are used as temps
-  FEXCore::ARMEmitter::VReg::v8,  FEXCore::ARMEmitter::VReg::v9,  FEXCore::ARMEmitter::VReg::v10, FEXCore::ARMEmitter::VReg::v11, FEXCore::ARMEmitter::VReg::v12, FEXCore::ARMEmitter::VReg::v13, FEXCore::ARMEmitter::VReg::v14, FEXCore::ARMEmitter::VReg::v15
+constexpr std::array<FEXCore::ARMEmitter::VRegister, 12 + 8> RAFPR = {
+  // v0 ~ v3 are used as temps.
+  // FEXCore::ARMEmitter::VReg::v0, FEXCore::ARMEmitter::VReg::v1,
+  // FEXCore::ARMEmitter::VReg::v2, FEXCore::ARMEmitter::VReg::v3,
+
+  FEXCore::ARMEmitter::VReg::v4, FEXCore::ARMEmitter::VReg::v5,
+  FEXCore::ARMEmitter::VReg::v6, FEXCore::ARMEmitter::VReg::v7,
+  FEXCore::ARMEmitter::VReg::v8, FEXCore::ARMEmitter::VReg::v9,
+  FEXCore::ARMEmitter::VReg::v10, FEXCore::ARMEmitter::VReg::v11,
+  FEXCore::ARMEmitter::VReg::v12, FEXCore::ARMEmitter::VReg::v13,
+  FEXCore::ARMEmitter::VReg::v14, FEXCore::ARMEmitter::VReg::v15,
+
+  // Registers only available on 32-bit
+  FEXCore::ARMEmitter::VReg::v24, FEXCore::ARMEmitter::VReg::v25,
+  FEXCore::ARMEmitter::VReg::v26, FEXCore::ARMEmitter::VReg::v27,
+  FEXCore::ARMEmitter::VReg::v28, FEXCore::ARMEmitter::VReg::v29,
+  FEXCore::ARMEmitter::VReg::v30, FEXCore::ARMEmitter::VReg::v31
 };
 
 // Contains the address to the currently available CPU state
@@ -85,21 +133,61 @@ constexpr FEXCore::ARMEmitter::PRegister PRED_TMP_32B = FEXCore::ARMEmitter::PRe
 // be used by both Arm64 JIT and ARM64 Dispatcher
 class Arm64Emitter : public FEXCore::ARMEmitter::Emitter {
 protected:
-  Arm64Emitter(FEXCore::Context::Context *ctx, size_t size);
+  Arm64Emitter(FEXCore::Context::ContextImpl *ctx, size_t size);
   ~Arm64Emitter();
 
-  FEXCore::Context::Context *EmitterCTX;
+  FEXCore::Context::ContextImpl *EmitterCTX;
   vixl::aarch64::CPU CPU;
+
+  uint32_t ConfiguredGPRs;
+  uint32_t ConfiguredSRAGPRs;
+  uint32_t ConfiguredGPRPairs;
+  uint32_t ConfiguredFPRs;
+  uint32_t ConfiguredSRAFPRs;
+  uint32_t ConfiguredDynamicGPRs;
+  const FEXCore::ARMEmitter::Register *ConfiguredDynamicRegisterBase{};
+
+  /**
+   * @name Register Allocation
+   * @{ */
+  // 64-bit gets removal of additional pairs
+  constexpr static uint32_t NumGPRs64       = RA64.size() - 8;
+  constexpr static uint32_t NumSRAGPRs64    = SRA64.size();
+  constexpr static uint32_t NumFPRs64       = RAFPR.size() - 8;
+  constexpr static uint32_t NumSRAFPRs64    = SRAFPR.size();
+  constexpr static uint32_t NumGPRPairs64   = RA64Pair.size() - 3;
+
+  // 32-bit gets full array of GPR registers
+  // SRA registers remove the additional 8
+  constexpr static uint32_t NumGPRs32       = RA64.size();
+  constexpr static uint32_t NumSRAGPRs32    = SRA64.size() - 8;
+  constexpr static uint32_t NumFPRs32       = RAFPR.size();
+  constexpr static uint32_t NumSRAFPRs32    = SRAFPR.size() - 8;
+  constexpr static uint32_t NumGPRPairs32   = RA64Pair.size();
+
+  constexpr static uint32_t RegisterClasses = 6;
+
+  constexpr static uint64_t GPRBase = (0ULL << 32);
+  constexpr static uint64_t FPRBase = (1ULL << 32);
+  constexpr static uint64_t GPRPairBase = (2ULL << 32);
+
+  /**  @} */
+
+  constexpr static uint8_t RA_32 = 0;
+  constexpr static uint8_t RA_64 = 1;
+  constexpr static uint8_t RA_FPR = 2;
+
   void LoadConstant(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register Reg, uint64_t Constant, bool NOPPad = false);
 
 
   // NOTE: These functions WILL clobber the register TMP4 if AVX support is enabled
   //       and FPRs are being spilled or filled. If only GPRs are spilled/filled, then
   //       TMP4 is left alone.
-  void SpillStaticRegs(bool FPRs = true, uint32_t GPRSpillMask = ~0U, uint32_t FPRSpillMask = ~0U);
+  void SpillStaticRegs(FEXCore::ARMEmitter::Register TmpReg, bool FPRs = true, uint32_t GPRSpillMask = ~0U, uint32_t FPRSpillMask = ~0U);
   void FillStaticRegs(bool FPRs = true, uint32_t GPRFillMask = ~0U, uint32_t FPRFillMask = ~0U);
 
-  static constexpr uint32_t CALLER_GPR_MASK = 0b0011'1111'1111'1111'1111;
+  // Register 0-18 + 29 + 30 are caller saved
+  static constexpr uint32_t CALLER_GPR_MASK = 0b0110'0000'0000'0111'1111'1111'1111'1111U;
 
   // This isn't technically true because the lower 64-bits of v8..v15 are callee saved
   // We can't guarantee only the lower 64bits are used so flush everything

External/FEXCore/Source/Interface/Core/ArchHelpers/CodeEmitter/ALUOps.inl

@@ -257,8 +257,8 @@ public:
   void sxth(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn) {
     sbfm(s, rd, rn, 0, 15);
   }
-  void sxtw(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::XRegister rn) {
-    sbfm(ARMEmitter::Size::i64Bit, rd, rn, 0, 31);
+  void sxtw(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn) {
+    sbfm(ARMEmitter::Size::i64Bit, rd, rn.X(), 0, 31);
   }
   void sbfx(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, uint32_t lsb, uint32_t width) {
     LOGMAN_THROW_A_FMT(width > 0, "sbfx needs width > 0");
@@ -287,12 +287,12 @@ public:
 
   void lsl(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, uint32_t shift) {
     const auto RegSize = RegSizeInBits(s);
-    LOGMAN_THROW_A_FMT(shift < RegSize, "Tried to asr a region larger than the register");
+    LOGMAN_THROW_A_FMT(shift < RegSize, "Tried to lsl a region larger than the register");
     ubfm(s, rd, rn, (RegSize - shift) % RegSize, RegSize - shift - 1);
   }
   void lsr(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, uint32_t shift) {
     const auto RegSize = RegSizeInBits(s);
-    LOGMAN_THROW_A_FMT(shift < RegSize, "Tried to asr a region larger than the register");
+    LOGMAN_THROW_A_FMT(shift < RegSize, "Tried to lsr a region larger than the register");
     ubfm(s, rd, rn, shift, RegSize - 1);
   }
   void ubfx(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, uint32_t lsb, uint32_t width) {
@@ -303,8 +303,8 @@ public:
 
   void bfi(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, uint32_t lsb, uint32_t width) {
     const auto RegSize = RegSizeInBits(s);
-    LOGMAN_THROW_A_FMT(width > 0, "sbfx needs width > 0");
-    LOGMAN_THROW_A_FMT((lsb + width) <= RegSize, "Tried to sbfx a region larger than the register");
+    LOGMAN_THROW_A_FMT(width > 0, "bfi needs width > 0");
+    LOGMAN_THROW_A_FMT((lsb + width) <= RegSize, "Tried to bfi a region larger than the register");
     bfm(s, rd, rn, (RegSize - lsb) & (RegSize - 1), width - 1);
   }
 
@@ -316,7 +316,6 @@ public:
   }
 
   void ror(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, uint32_t Imm) {
-    LOGMAN_THROW_A_FMT(Imm < RegSizeInBits(s), "Tried to extr a region larger than the register");
     extr(s, rd, rn, rn, Imm);
   }
 
@@ -711,28 +710,28 @@ public:
     DataProcessing_3Source(Op, 0, s, rd, rn, rm, ra);
   }
   void mul(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, FEXCore::ARMEmitter::Register rm) {
-    madd(s, rd, rn, rm, FEXCore::ARMEmitter::Reg::zr);
+    madd(s, rd, rn, rm, XReg::zr);
   }
   void msub(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, FEXCore::ARMEmitter::Register rm, FEXCore::ARMEmitter::Register ra) {
     constexpr uint32_t Op = 0b001'1011'000U << 21;
     DataProcessing_3Source(Op, 1, s, rd, rn, rm, ra);
   }
   void mneg(FEXCore::ARMEmitter::Size s, FEXCore::ARMEmitter::Register rd, FEXCore::ARMEmitter::Register rn, FEXCore::ARMEmitter::Register rm) {
-    msub(s, rd, rn, rm, FEXCore::ARMEmitter::Reg::zr);
+    msub(s, rd, rn, rm, XReg::zr);
   }
   void smaddl(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm, FEXCore::ARMEmitter::XRegister ra) {
     constexpr uint32_t Op = 0b001'1011'001U << 21;
     DataProcessing_3Source(Op, 0, FEXCore::ARMEmitter::Size::i64Bit, rd, rn, rm, ra);
   }
   void smull(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm) {
-    smaddl(rd, rn, rm, FEXCore::ARMEmitter::Reg::zr);
+    smaddl(rd, rn, rm, XReg::zr);
   }
   void smsubl(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm, FEXCore::ARMEmitter::XRegister ra) {
     constexpr uint32_t Op = 0b001'1011'001U << 21;
     DataProcessing_3Source(Op, 1, FEXCore::ARMEmitter::Size::i64Bit, rd, rn, rm, ra);
   }
   void smnegl(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm) {
-    smsubl(rd, rn, rm, FEXCore::ARMEmitter::Reg::zr);
+    smsubl(rd, rn, rm, XReg::zr);
   }
   void smulh(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::XRegister rn, FEXCore::ARMEmitter::XRegister rm) {
     constexpr uint32_t Op = 0b001'1011'010U << 21;
@@ -743,14 +742,14 @@ public:
     DataProcessing_3Source(Op, 0, FEXCore::ARMEmitter::Size::i64Bit, rd, rn, rm, ra);
   }
   void umull(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm) {
-    umaddl(rd, rn, rm, FEXCore::ARMEmitter::Reg::zr);
+    umaddl(rd, rn, rm, XReg::zr);
   }
   void umsubl(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm, FEXCore::ARMEmitter::XRegister ra) {
     constexpr uint32_t Op = 0b001'1011'101U << 21;
     DataProcessing_3Source(Op, 1, FEXCore::ARMEmitter::Size::i64Bit, rd, rn, rm, ra);
   }
   void umnegl(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::WRegister rn, FEXCore::ARMEmitter::WRegister rm) {
-    umsubl(rd, rn, rm, FEXCore::ARMEmitter::Reg::zr);
+    umsubl(rd, rn, rm, XReg::zr);
   }
   void umulh(FEXCore::ARMEmitter::XRegister rd, FEXCore::ARMEmitter::XRegister rn, FEXCore::ARMEmitter::XRegister rm) {
     constexpr uint32_t Op = 0b001'1011'110U << 21;

External/FEXCore/Source/Interface/Core/ArchHelpers/CodeEmitter/Emitter.h

@@ -6,13 +6,13 @@
 #include <FEXCore/Utils/CompilerDefs.h>
 #include <FEXCore/Utils/EnumUtils.h>
 #include <FEXCore/Utils/LogManager.h>
+#include <FEXCore/fextl/vector.h>
 
 #include <aarch64/assembler-aarch64.h>
 
 #include <cstdint>
 #include <utility>
 #include <type_traits>
-#include <vector>
 
 /*
  * Welcome to FEX-Emu's custom AArch64 emitter.
@@ -62,20 +62,9 @@ namespace FEXCore::ARMEmitter {
   };
 
   // This allows us to get the `Size` enum in bits.
-  template<Size size>
-  constexpr size_t RegSizeInBits() {
-    constexpr size_t RegSize[] = {
-      32, 64, 128,
-    };
-    return RegSize[FEXCore::ToUnderlying(size)];
-  }
-
-  [[maybe_unused]]
-  static inline size_t RegSizeInBits(Size size) {
-    constexpr size_t RegSize[] = {
-      32, 64, 128,
-    };
-    return RegSize[FEXCore::ToUnderlying(size)];
+  [[nodiscard]]
+  constexpr size_t RegSizeInBits(Size size) {
+    return size_t{32} << FEXCore::ToUnderlying(size);
   }
 
   /* This `SubRegSize` enum is used for most ASIMD operations.
@@ -90,14 +79,9 @@ namespace FEXCore::ARMEmitter {
   };
 
   // This allows us to get the `SubRegSize` in bits.
-  template<SubRegSize size>
-  constexpr size_t SubRegSizeInBits() {
-    return (1 << FEXCore::ToUnderlying(size)) * 8;
-  }
-
-  [[maybe_unused]]
-  static inline size_t SubRegSizeInBits(SubRegSize size) {
-    return (1 << FEXCore::ToUnderlying(size)) * 8;
+  [[nodiscard]]
+  constexpr size_t SubRegSizeInBits(SubRegSize size) {
+    return size_t{8} << FEXCore::ToUnderlying(size);
   }
 
   /* This `ScalarRegSize` enum is used for most scalar float
@@ -117,14 +101,9 @@ namespace FEXCore::ARMEmitter {
   };
 
   // This allows us to get the `ScalarRegSize` in bits.
-  template<ScalarRegSize size>
-  constexpr size_t ScalarRegSizeInBits() {
-    return (1 << FEXCore::ToUnderlying(size)) * 8;
-  }
-
-  [[maybe_unused]]
-  static inline size_t ScalarRegSizeInBits(ScalarRegSize size) {
-    return (1 << FEXCore::ToUnderlying(size)) * 8;
+  [[nodiscard]]
+  constexpr size_t ScalarRegSizeInBits(ScalarRegSize size) {
+    return size_t{8} << FEXCore::ToUnderlying(size);
   }
 
   /* This `VectorRegSizePair` union allows us to have an overlapping type
@@ -140,12 +119,12 @@ namespace FEXCore::ARMEmitter {
   };
 
   // This allows us to create a `VectorRegSizePair` union.
-  [[maybe_unused]]
-  static inline VectorRegSizePair ToVectorSizePair(SubRegSize size) {
+  [[nodiscard]]
+  constexpr VectorRegSizePair ToVectorSizePair(SubRegSize size) {
     return VectorRegSizePair {.Vector = size};
   }
-  [[maybe_unused]]
-  static inline VectorRegSizePair ToVectorSizePair(ScalarRegSize size) {
+  [[nodiscard]]
+  constexpr VectorRegSizePair ToVectorSizePair(ScalarRegSize size) {
     return VectorRegSizePair {.Scalar = size};
   }
 
@@ -524,7 +503,7 @@ namespace FEXCore::ARMEmitter {
       uint8_t *Location{};
       InstType Type;
     };
-    std::vector<Instructions> Insts{};
+    fextl::vector<Instructions> Insts{};
   };
 
   /* This `BiDirectionalLabel` struct used for retaining a location for PC-Relative instructions.
@@ -544,6 +523,36 @@ namespace FEXCore::ARMEmitter {
     ROTATE_270 = 0b11,
   };
 
+  // Concept for contraining some instructions to accept only an XRegister or WRegister.
+  // Particularly for operations that differ encodings depending on which one is used.
+  template <typename T>
+  concept IsXOrWRegister = std::is_same_v<T, XRegister> || std::is_same_v<T, WRegister>;
+
+  // Whether or not a given set of vector registers are sequential
+  // in increasing order as far as the register file is concerned (modulo its size)
+  //
+  // For example, a set of registers like:
+  //
+  // v1,  v2, v3 and
+  // v31, v0, v1
+  //
+  // would both be considered sequential sequences, and some instructions in particular
+  // limit register lists to these kind of sequences.
+  //
+  template <typename T, typename... Args>
+  constexpr bool AreVectorsSequential(T first, const Args&... args) {
+    // Ensure we always have a pair of registers to compare against.
+    static_assert(sizeof...(args) >= 1, "Number of arguments must be greater than 1");
+
+    const auto fn = [](auto& lhs, const auto& rhs) {
+      const auto result = ((lhs.Idx() + 1) % 32) == rhs.Idx();
+      lhs = rhs;
+      return result;
+    };
+
+    return (fn(first, args) && ...);
+  }
+
   // This is an emitter that is designed around the smallest code bloat as possible.
   // Eschewing most developer convenience in order to keep code as small as possible.
 

External/FEXCore/Source/Interface/Core/ArchHelpers/CodeEmitter/Registers.h

@@ -1,5 +1,8 @@
 #pragma once
+
 #include <FEXCore/Utils/EnumUtils.h>
+
+#include <compare>
 #include <cstdint>
 
 namespace FEXCore::ARMEmitter {
@@ -15,13 +18,12 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit Register(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const Register&, const Register&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator WRegister() const;
-      operator XRegister() const;
-
       WRegister W() const;
       XRegister X() const;
 
@@ -41,9 +43,7 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit WRegister(uint32_t Idx)
         : Index {Idx} {}
 
-      bool operator==(const WRegister &rhs) {
-        return Idx() == rhs.Idx();
-      }
+      friend constexpr auto operator<=>(const WRegister&, const WRegister&) = default;
 
       uint32_t Idx() const {
         return Index;
@@ -53,10 +53,7 @@ namespace FEXCore::ARMEmitter {
         return Register(Index);
       }
 
-      operator XRegister() const;
-
       XRegister X() const;
-
       Register R() const;
 
     private:
@@ -75,9 +72,7 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit XRegister(uint32_t Idx)
         : Index {Idx} {}
 
-      bool operator==(const XRegister &rhs) {
-        return Idx() == rhs.Idx();
-      }
+      friend constexpr auto operator<=>(const XRegister&, const XRegister&) = default;
 
       uint32_t Idx() const {
         return Index;
@@ -87,10 +82,7 @@ namespace FEXCore::ARMEmitter {
         return Register(Index);
       }
 
-      operator WRegister() const;
-
       WRegister W() const;
-
       Register R() const;
 
     private:
@@ -101,45 +93,29 @@ namespace FEXCore::ARMEmitter {
   static_assert(std::is_standard_layout_v<Register>, "Needs to be standard");
 
   inline WRegister Register::W() const {
-    return *this;
+    return WRegister{Index};
   }
 
   inline XRegister Register::X() const {
-    return *this;
-  }
-
-  inline Register::operator WRegister () const {
-    return WRegister(Index);
-  }
-
-  inline Register::operator XRegister () const {
-    return XRegister(Index);
+    return XRegister{Index};
   }
 
   inline XRegister WRegister::X() const {
-    return *this;
+    return XRegister{Index};
   }
 
   inline Register WRegister::R() const {
     return *this;
   }
 
-  inline WRegister::operator XRegister () const {
-    return XRegister(Index);
-  }
-
   inline WRegister XRegister::W() const {
-    return *this;
+    return WRegister{Index};
   }
 
   inline Register XRegister::R() const {
     return *this;
   }
 
-  inline XRegister::operator WRegister () const {
-    return WRegister(Index);
-  }
-
   // Namespace containing all unsized GPR register objects.
   namespace Reg {
     constexpr static Register r0(0);
@@ -291,20 +267,15 @@ namespace FEXCore::ARMEmitter {
   class VRegister {
     public:
       VRegister() = delete;
-      constexpr VRegister(uint32_t Idx)
+      constexpr explicit VRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const VRegister&, const VRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator BRegister() const;
-      operator HRegister() const;
-      operator SRegister() const;
-      operator DRegister() const;
-      operator QRegister() const;
-      operator ZRegister() const;
-
       BRegister B() const;
       HRegister H() const;
       SRegister S() const;
@@ -328,16 +299,15 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit BRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const BRegister&, const BRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator VRegister() const;
-      operator HRegister() const;
-      operator SRegister() const;
-      operator DRegister() const;
-      operator QRegister() const;
-      operator ZRegister() const;
+      operator VRegister () const {
+        return VRegister(Index);
+      }
 
       BRegister V() const;
       HRegister H() const;
@@ -362,16 +332,15 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit HRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const HRegister&, const HRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator VRegister() const;
-      operator BRegister() const;
-      operator SRegister() const;
-      operator DRegister() const;
-      operator QRegister() const;
-      operator ZRegister() const;
+      operator VRegister() const {
+        return VRegister(Index);
+      }
 
       HRegister V() const;
       BRegister B() const;
@@ -396,16 +365,15 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit SRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const SRegister&, const SRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator VRegister() const;
-      operator BRegister() const;
-      operator HRegister() const;
-      operator DRegister() const;
-      operator QRegister() const;
-      operator ZRegister() const;
+      operator VRegister() const {
+        return VRegister(Index);
+      }
 
       SRegister V() const;
       BRegister B() const;
@@ -431,16 +399,15 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit DRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const DRegister&, const DRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator VRegister() const;
-      operator BRegister() const;
-      operator HRegister() const;
-      operator SRegister() const;
-      operator QRegister() const;
-      operator ZRegister() const;
+      operator VRegister() const {
+        return VRegister(Index);
+      }
 
       DRegister V() const;
       BRegister B() const;
@@ -466,16 +433,15 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit QRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const QRegister&, const QRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
 
-      operator VRegister() const;
-      operator BRegister() const;
-      operator HRegister() const;
-      operator SRegister() const;
-      operator DRegister() const;
-      operator ZRegister() const;
+      operator VRegister () const {
+        return VRegister(Index);
+      }
 
       QRegister V() const;
       BRegister B() const;
@@ -500,6 +466,8 @@ namespace FEXCore::ARMEmitter {
       constexpr explicit ZRegister(uint32_t Idx)
         : Index {Idx} {}
 
+      friend constexpr auto operator<=>(const ZRegister&, const ZRegister&) = default;
+
       uint32_t Idx() const {
         return Index;
       }
@@ -520,41 +488,22 @@ namespace FEXCore::ARMEmitter {
 
   // VRegister
   inline BRegister VRegister::B() const {
-    return *this;
+    return BRegister{Index};
   }
   inline HRegister VRegister::H() const {
-    return *this;
+    return HRegister{Index};
   }
   inline SRegister VRegister::S() const {
-    return *this;
+    return SRegister{Index};
   }
   inline DRegister VRegister::D() const {
-    return *this;
+    return DRegister{Index};
   }
   inline QRegister VRegister::Q() const {
-    return *this;
+    return QRegister{Index};
   }
   inline ZRegister VRegister::Z() const {
-    return *this;
-  }
-
-  inline VRegister::operator BRegister () const {
-    return BRegister(Index);
-  }
-  inline VRegister::operator HRegister () const {
-    return HRegister(Index);
-  }
-  inline VRegister::operator SRegister () const {
-    return SRegister(Index);
-  }
-  inline VRegister::operator DRegister () const {
-    return DRegister(Index);
-  }
-  inline VRegister::operator QRegister () const {
-    return QRegister(Index);
-  }
-  inline VRegister::operator ZRegister () const {
-    return ZRegister(Index);
+    return ZRegister{Index};
   }
 
   // BRegister
@@ -562,38 +511,19 @@ namespace FEXCore::ARMEmitter {
     return *this;
   }
   inline HRegister BRegister::H() const {
-    return *this;
+    return HRegister{Index};
   }
   inline SRegister BRegister::S() const {
-    return *this;
+    return SRegister{Index};
   }
   inline DRegister BRegister::D() const {
-    return *this;
+    return DRegister{Index};
   }
   inline QRegister BRegister::Q() const {
-    return *this;
+    return QRegister{Index};
   }
   inline ZRegister BRegister::Z() const {
-    return *this;
-  }
-
-  inline BRegister::operator VRegister () const {
-    return VRegister(Index);
-  }
-  inline BRegister::operator HRegister () const {
-    return HRegister(Index);
-  }
-  inline BRegister::operator SRegister () const {
-    return SRegister(Index);
-  }
-  inline BRegister::operator DRegister () const {
-    return DRegister(Index);
-  }
-  inline BRegister::operator QRegister () const {
-    return QRegister(Index);
-  }
-  inline BRegister::operator ZRegister () const {
-    return ZRegister(Index);
+    return ZRegister{Index};
   }
 
   // HRegister
@@ -601,38 +531,19 @@ namespace FEXCore::ARMEmitter {
     return *this;
   }
   inline BRegister HRegister::B() const {
-    return *this;
+    return BRegister{Index};
   }
   inline SRegister HRegister::S() const {
-    return *this;
+    return SRegister{Index};
   }
   inline DRegister HRegister::D() const {
-    return *this;
+    return DRegister{Index};
   }
   inline QRegister HRegister::Q() const {
-    return *this;
+    return QRegister{Index};
   }
   inline ZRegister HRegister::Z() const {
-    return *this;
-  }
-
-  inline HRegister::operator VRegister () const {
-    return VRegister(Index);
-  }
-  inline HRegister::operator BRegister () const {
-    return BRegister(Index);
-  }
-  inline HRegister::operator SRegister () const {
-    return SRegister(Index);
-  }
-  inline HRegister::operator DRegister () const {
-    return DRegister(Index);
-  }
-  inline HRegister::operator QRegister () const {
-    return QRegister(Index);
-  }
-  inline HRegister::operator ZRegister () const {
-    return ZRegister(Index);
+    return ZRegister{Index};
   }
 
   // SRegister
@@ -640,77 +551,39 @@ namespace FEXCore::ARMEmitter {
     return *this;
   }
   inline BRegister SRegister::B() const {
-    return *this;
+    return BRegister{Index};
   }
   inline HRegister SRegister::H() const {
-    return *this;
+    return HRegister{Index};
   }
   inline DRegister SRegister::D() const {
-    return *this;
+    return DRegister{Index};
   }
   inline QRegister SRegister::Q() const {
-    return *this;
+    return QRegister{Index};
   }
   inline ZRegister SRegister::Z() const {
-    return *this;
-  }
-
-  inline SRegister::operator VRegister () const {
-    return VRegister(Index);
-  }
-  inline SRegister::operator BRegister () const {
-    return BRegister(Index);
-  }
-  inline SRegister::operator HRegister () const {
-    return HRegister(Index);
-  }
-  inline SRegister::operator DRegister () const {
-    return DRegister(Index);
-  }
-  inline SRegister::operator QRegister () const {
-    return QRegister(Index);
-  }
-  inline SRegister::operator ZRegister () const {
-    return ZRegister(Index);
+    return ZRegister{Index};
   }
 
   // DRegister
   inline DRegister DRegister::V() const {
-    return *this;
+    return DRegister{Index};
   }
   inline BRegister DRegister::B() const {
-    return *this;
+    return BRegister{Index};
   }
   inline HRegister DRegister::H() const {
-    return *this;
+    return HRegister{Index};
   }
   inline SRegister DRegister::S() const {
-    return *this;
+    return SRegister{Index};
   }
   inline QRegister DRegister::Q() const {
-    return *this;
+    return QRegister{Index};
   }
   inline ZRegister DRegister::Z() const {
-    return *this;
-  }
-
-  inline DRegister::operator VRegister () const {
-    return VRegister(Index);
-  }
-  inline DRegister::operator BRegister () const {
-    return BRegister(Index);
-  }
-  inline DRegister::operator HRegister () const {
-    return HRegister(Index);
-  }
-  inline DRegister::operator SRegister () const {
-    return SRegister(Index);
-  }
-  inline DRegister::operator QRegister () const {
-    return QRegister(Index);
-  }
-  inline DRegister::operator ZRegister () const {
-    return ZRegister(Index);
+    return ZRegister{Index};
   }
 
   // QRegister
@@ -718,38 +591,19 @@ namespace FEXCore::ARMEmitter {
     return *this;
   }
   inline BRegister QRegister::B() const {
-    return *this;
+    return BRegister{Index};
   }
   inline HRegister QRegister::H() const {
-    return *this;
+    return HRegister{Index};
   }
   inline SRegister QRegister::S() const {
-    return *this;
+    return SRegister{Index};
   }
   inline DRegister QRegister::D() const {
-    return *this;
+    return DRegister{Index};
   }
   inline ZRegister QRegister::Z() const {
-    return *this;
-  }
-
-  inline QRegister::operator VRegister () const {
-    return VRegister(Index);
-  }
-  inline QRegister::operator BRegister () const {
-    return BRegister(Index);
-  }
-  inline QRegister::operator HRegister () const {
-    return HRegister(Index);
-  }
-  inline QRegister::operator SRegister () const {
-    return SRegister(Index);
-  }
-  inline QRegister::operator DRegister () const {
-    return DRegister(Index);
-  }
-  inline QRegister::operator ZRegister () const {
-    return ZRegister(Index);
+    return ZRegister{Index};
   }
 
   // ZRegister
@@ -1069,17 +923,12 @@ namespace FEXCore::ARMEmitter {
       constexpr PRegister(uint32_t Idx)
         : Index {Idx} {}
 
-      operator uint32_t() const {
-        return Index;
-      }
+      friend constexpr auto operator<=>(const PRegister&, const PRegister&) = default;
 
       uint32_t Idx() const {
         return Index;
       }
 
-      operator PRegisterZero() const;
-      operator PRegisterMerge() const;
-
       PRegisterZero Zeroing() const;
       PRegisterMerge Merging() const;
 
@@ -1097,16 +946,13 @@ namespace FEXCore::ARMEmitter {
       constexpr PRegisterZero(uint32_t Idx)
         : Index {Idx} {}
 
-      operator uint32_t() const {
-        return Index;
-      }
+      friend constexpr auto operator<=>(const PRegisterZero&, const PRegisterZero&) = default;
 
       uint32_t Idx() const {
         return Index;
       }
 
       operator PRegister() const;
-      operator PRegisterMerge() const;
 
       PRegister P() const;
       PRegisterMerge Merging() const;
@@ -1125,16 +971,13 @@ namespace FEXCore::ARMEmitter {
       constexpr PRegisterMerge(uint32_t Idx)
         : Index {Idx} {}
 
-      operator uint32_t() const {
-        return Index;
-      }
+      friend constexpr auto operator<=>(const PRegisterMerge&, const PRegisterMerge&) = default;
 
       uint32_t Idx() const {
         return Index;
       }
 
       operator PRegister() const;
-      operator PRegisterZero() const;
 
       PRegister P() const;
       PRegisterZero Zeroing() const;
@@ -1148,14 +991,6 @@ namespace FEXCore::ARMEmitter {
 
 
   // PRegister
-  inline PRegister::operator PRegisterZero() const {
-    return PRegisterZero(Index);
-  }
-
-  inline PRegister::operator PRegisterMerge() const {
-    return PRegisterMerge(Index);
-  }
-
   inline PRegisterZero PRegister::Zeroing() const {
     return PRegisterZero(Idx());
   }
@@ -1169,10 +1004,6 @@ namespace FEXCore::ARMEmitter {
     return PRegister(Index);
   }
 
-  inline PRegisterZero::operator PRegisterMerge() const {
-    return PRegisterMerge(Index);
-  }
-
   inline PRegister PRegisterZero::P() const {
     return PRegister(Idx());
   }
@@ -1186,10 +1017,6 @@ namespace FEXCore::ARMEmitter {
     return PRegisterZero(Index);
   }
 
-  inline PRegisterMerge::operator PRegisterZero() const {
-    return PRegisterZero(Index);
-  }
-
   inline PRegister PRegisterMerge::P() const {
     return PRegister(Idx());
   }

External/FEXCore/Source/Interface/Core/CPUBackend.cpp

@@ -1,3 +1,4 @@
+#include "FEXCore/Utils/AllocatorHooks.h"
 #include "Interface/Context/Context.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
 #include <FEXCore/Core/CPUBackend.h>
@@ -57,17 +58,17 @@ auto CPUBackend::AllocateNewCodeBuffer(size_t Size) -> CodeBuffer {
   CodeBuffer Buffer;
   Buffer.Size = Size;
   Buffer.Ptr = static_cast<uint8_t *>(
-      FEXCore::Allocator::mmap(nullptr, Buffer.Size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
+      FEXCore::Allocator::VirtualAlloc(Buffer.Size, true));
   LOGMAN_THROW_AA_FMT(!!Buffer.Ptr, "Couldn't allocate code buffer");
 
-  if (ThreadState->CTX->Config.GlobalJITNaming()) {
-    ThreadState->CTX->Symbols.RegisterJITSpace(Buffer.Ptr, Buffer.Size);
+  if (static_cast<Context::ContextImpl*>(ThreadState->CTX)->Config.GlobalJITNaming()) {
+    static_cast<Context::ContextImpl*>(ThreadState->CTX)->Symbols.RegisterJITSpace(Buffer.Ptr, Buffer.Size);
   }
   return Buffer;
 }
 
 void CPUBackend::FreeCodeBuffer(CodeBuffer Buffer) {
-  FEXCore::Allocator::munmap(Buffer.Ptr, Buffer.Size);
+  FEXCore::Allocator::VirtualFree(Buffer.Ptr, Buffer.Size);
 }
 
 bool CPUBackend::IsAddressInCodeBuffer(uintptr_t Address) const {

External/FEXCore/Source/Interface/Core/CPUID.cpp

@@ -8,18 +8,20 @@ $end_info$
 #include "Common/StringConv.h"
 #include "Interface/Context/Context.h"
 #include "Interface/Core/CPUID.h"
-#include "Utils/FileLoading.h"
 
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/CPUID.h>
 #include <FEXCore/Core/HostFeatures.h>
+#include <FEXCore/Utils/CPUInfo.h>
+#include <FEXCore/Utils/FileLoading.h>
+#include <FEXCore/fextl/string.h>
 #include <FEXHeaderUtils/Syscalls.h>
 
 #include "git_version.h"
 
 #include <cstring>
 #ifdef _M_X86_64
-#include <cpuid.h>
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #endif
 
 namespace FEXCore {
@@ -74,20 +76,6 @@ static uint32_t GetCPUID() {
   return CPU;
 }
 
-static uint32_t CalculateNumberOfCPUs() {
-  size_t CPUs = 1;
-
-  while(std::filesystem::exists("/sys/devices/system/cpu/cpu" + std::to_string(CPUs))) {
-    CPUs++;
-  }
-
-  return CPUs;
-}
-
-// TODO: Replace usages with CTX->HostFeatures.EnableAVX
-//       when AVX implementations are further along.
-constexpr uint32_t SUPPORTS_AVX = 0;
-
 #ifdef CPUID_AMD
 constexpr uint32_t FAMILY_IDENTIFIER =
   0 |          // Stepping
@@ -115,13 +103,13 @@ static uint32_t GetCycleCounterFrequency() {
 }
 
 void CPUIDEmu::SetupHostHybridFlag() {
-  size_t CPUs = CalculateNumberOfCPUs();
+  size_t CPUs = FEXCore::CPUInfo::CalculateNumberOfCPUs();
   PerCPUData.resize(CPUs);
 
   uint64_t MIDR{};
   for (size_t i = 0; i < CPUs; ++i) {
     std::error_code ec{};
-    std::string MIDRPath = fmt::format("/sys/devices/system/cpu/cpu{}/regs/identification/midr_el1", i);
+    fextl::string MIDRPath = fextl::fmt::format("/sys/devices/system/cpu/cpu{}/regs/identification/midr_el1", i);
 
     std::array<char, 18> Data;
     // Needs to be a fixed size since depending on kernel it will try to read a full page of data and fail
@@ -217,8 +205,8 @@ void CPUIDEmu::SetupHostHybridFlag() {
 
   if (Hybrid) {
     // Walk the MIDRs and calculate big little designs
-    std::vector<const CPUMIDR*> BigCores;
-    std::vector<const CPUMIDR*> LittleCores;
+    fextl::vector<const CPUMIDR*> BigCores;
+    fextl::vector<const CPUMIDR*> LittleCores;
 
     // Separate CPU cores out to big or little selected
     for (size_t i = 0; i < CPUs; ++i) {
@@ -354,28 +342,28 @@ void CPUIDEmu::SetupHostHybridFlag() {
 
 #else
 static uint32_t GetCycleCounterFrequency() {
-  uint32_t eax, ebx, ecx, edx;
-  __cpuid(0, eax, ebx, ecx, edx);
-  if (eax >= 0x15) {
-    __cpuid(0x15, eax, ebx, ecx, edx);
+  uint32_t data[4];
+  Xbyak::util::Cpu::getCpuid(0, data);
+  if (data[0] >= 0x15) {
+    Xbyak::util::Cpu::getCpuid(0x15, data);
 
-    if (eax && ebx && ecx) {
-      return ecx * ebx / eax;
+    if (data[0] && data[1] && data[2]) {
+      return data[2] * data[1] / data[0];
     }
   }
   return 0;
 }
 
 void CPUIDEmu::SetupHostHybridFlag() {
-  uint32_t eax, ebx, ecx, edx;
-  __cpuid(0, eax, ebx, ecx, edx);
-  if (eax >= 0x7) {
-    __cpuid(0x7, eax, ebx, ecx, edx);
+  uint32_t data[4];
+  Xbyak::util::Cpu::getCpuid(0, data);
+  if (data[0] >= 0x7) {
+    Xbyak::util::Cpu::getCpuid(0x7, data);
     // Bit 15 of edx claims hybrid CPU
-    Hybrid = (edx & (1U << 15)) != 0;
+    Hybrid = (data[3] & (1U << 15)) != 0;
   }
 
-  size_t CPUs = CalculateNumberOfCPUs();
+  size_t CPUs = FEXCore::CPUInfo::CalculateNumberOfCPUs();
   PerCPUData.resize(CPUs);
   for (size_t i = 0; i < CPUs; ++i) {
     PerCPUData[i].IsBig = true;
@@ -410,6 +398,9 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_01h(uint32_t Leaf) {
   // XXX: Enable once the rest of the SSE4.2 instructions are emulated
   uint32_t SupportsSSE42 = CTX->HostFeatures.SupportsCRC && false ? 1 : 0;
 
+  // Hypervisor bit is normally set but some applications have issues with it.
+  uint32_t Hypervisor = HideHypervisorBit() ? 0 : 1;
+
   Res.eax = FAMILY_IDENTIFIER;
 
   Res.ebx = 0 | // Brand index
@@ -446,10 +437,10 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_01h(uint32_t Leaf) {
     (CTX->HostFeatures.SupportsAES << 25) | // AES
     (0 << 26) | // XSAVE
     (0 << 27) | // OSXSAVE
-    (SUPPORTS_AVX << 28) | // AVX
+    (SupportsAVX() << 28) | // AVX
     (0 << 29) | // F16C
     (CTX->HostFeatures.SupportsRAND << 30) | // RDRAND
-    (1 << 31);  // Hypervisor always returns one
+    (Hypervisor << 31);
 
   Res.edx =
     (1 <<  0) | // FPU
@@ -635,12 +626,12 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_07h(uint32_t Leaf) {
       (1 <<  0) | // FS/GS support
       (0 <<  1) | // TSC adjust MSR
       (0 <<  2) | // SGX
-      (1 <<  3) | // BMI1
+      (SupportsAVX() << 3) | // BMI1
       (0 <<  4) | // Intel Hardware Lock Elison
       (0 <<  5) | // AVX2 support
       (1 <<  6) | // FPU data pointer updated only on exception
       (1 <<  7) | // SMEP support
-      (1 <<  8) | // BMI2
+      (SupportsAVX() << 8) | // BMI2
       (0 <<  9) | // Enhanced REP MOVSB/STOSB
       (1 << 10) | // INVPCID for system software control of process-context
       (0 << 11) | // Restricted transactional memory
@@ -704,7 +695,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_07h(uint32_t Leaf) {
       (0 <<  1) | // Reserved
       (0 <<  2) | // AVX512_4VNNIW
       (0 <<  3) | // AVX512_4FMAPS
-      (0 <<  4) | // Fast Short Rep Mov
+      (1 <<  4) | // Fast Short Rep Mov
       (0 <<  5) | // Reserved
       (0 <<  6) | // Reserved
       (0 <<  7) | // Reserved
@@ -741,13 +732,13 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_0Dh(uint32_t Leaf) {
   // Leaf 0
   FEXCore::CPUID::FunctionResults Res{};
 
-  uint32_t XFeatureSupportedSizeMax = SUPPORTS_AVX ? 0x0000'0340 : 0x0000'0240; // XFeatureEnabledSizeMax: Legacy Header + FPU/SSE + AVX
+  uint32_t XFeatureSupportedSizeMax = SupportsAVX() ? 0x0000'0340 : 0x0000'0240; // XFeatureEnabledSizeMax: Legacy Header + FPU/SSE + AVX
   if (Leaf == 0) {
     // XFeatureSupportedMask[31:0]
     Res.eax =
       (1 << 0) |            // X87 support
       (1 << 1) |            // 128-bit SSE support
-      (SUPPORTS_AVX << 2) | // 256-bit AVX support
+      (SupportsAVX() << 2) | // 256-bit AVX support
       (0b00 << 3) |         // MPX State
       (0b000 << 5) |        // AVX-512 state
       (0 << 8) |            // "Used for IA32_XSS" ... Used for what?
@@ -781,8 +772,8 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_0Dh(uint32_t Leaf) {
     Res.edx = 0;
   }
   else if (Leaf == 2) {
-    Res.eax = SUPPORTS_AVX ? 0x0000'0100 : 0; // YmmSaveStateSize
-    Res.ebx = SUPPORTS_AVX ? 0x0000'0240 : 0; // YmmSaveStateOffset
+    Res.eax = SupportsAVX() ? 0x0000'0100 : 0; // YmmSaveStateSize
+    Res.ebx = SupportsAVX() ? 0x0000'0240 : 0; // YmmSaveStateOffset
 
     // Reserved
     Res.ecx = 0;
@@ -877,6 +868,13 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0000h(uint32_t Leaf) {
 
 // Extended processor and feature bits
 FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0001h(uint32_t Leaf) {
+
+  // RDTSCP is disabled on WIN32/Wine because there is no sane way to query processor ID.
+#ifndef _WIN32
+  constexpr uint32_t SUPPORTS_RDTSCP = 0;
+#else
+  constexpr uint32_t SUPPORTS_RDTSCP = 1;
+#endif
   FEXCore::CPUID::FunctionResults Res{};
 
   Res.eax = FAMILY_IDENTIFIER;
@@ -943,7 +941,7 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0001h(uint32_t Leaf) {
     (1 << 24) | // FXSAVE/FXRSTOR
     (1 << 25) | // FXSAVE/FXRSTOR Optimizations
     (0 << 26) | // 1 gigabit pages
-    (1 << 27) | // RDTSCP
+    (SUPPORTS_RDTSCP << 27) | // RDTSCP
     (0 << 28) | // Reserved
     (1 << 29) | // Long Mode
     (1 << 30) | // 3DNow! Extensions
@@ -974,14 +972,14 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0004h(uint32_t Leaf) {
 FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0002h(uint32_t Leaf, uint32_t CPU) {
   FEXCore::CPUID::FunctionResults Res{};
   memset(&Res, ' ', sizeof(FEXCore::CPUID::FunctionResults));
-  memcpy(&Res, &ProcessorBrand[0], std::min(16L, DESCRIBE_STR_SIZE));
+  memcpy(&Res, &ProcessorBrand[0], std::min(ssize_t{16L}, DESCRIBE_STR_SIZE));
   return Res;
 }
 
 FEXCore::CPUID::FunctionResults CPUIDEmu::Function_8000_0003h(uint32_t Leaf, uint32_t CPU) {
   FEXCore::CPUID::FunctionResults Res{};
   memset(&Res, ' ', sizeof(FEXCore::CPUID::FunctionResults));
-  memcpy(&Res, &ProcessorBrand[16], std::max(0L, DESCRIBE_STR_SIZE - 16));
+  memcpy(&Res, &ProcessorBrand[16], std::max(ssize_t{0L}, DESCRIBE_STR_SIZE - 16));
   return Res;
 }
 
@@ -1210,11 +1208,26 @@ FEXCore::CPUID::FunctionResults CPUIDEmu::Function_Reserved(uint32_t Leaf) {
   return Res;
 }
 
-void CPUIDEmu::Init(FEXCore::Context::Context *ctx) {
+FEXCore::CPUID::XCRResults CPUIDEmu::XCRFunction_0h() {
+  // This just returns XCR0
+  FEXCore::CPUID::XCRResults Res{
+    .eax = static_cast<uint32_t>(XCR0),
+    .edx = static_cast<uint32_t>(XCR0 >> 32),
+  };
+
+  return Res;
+}
+
+void CPUIDEmu::Init(FEXCore::Context::ContextImpl *ctx) {
   CTX = ctx;
 
   // Setup some state tracking
   SetupHostHybridFlag();
+
+  // TODO: Enable once AVX is supported.
+  if (false && CTX->HostFeatures.SupportsAVX) {
+    XCR0 |= XCR0_AVX;
+  }
 }
 }
 

External/FEXCore/Source/Interface/Core/CPUID.h

@@ -1,16 +1,16 @@
 #pragma once
 
+#include <FEXCore/Core/CPUID.h>
+#include <FEXCore/Config/Config.h>
+#include <FEXCore/fextl/vector.h>
+
 #include <cstdint>
 #include <unordered_map>
 #include <utility>
-#include <vector>
-
-#include <FEXCore/Core/CPUID.h>
-#include <FEXCore/Config/Config.h>
 
 namespace FEXCore {
 namespace Context {
-  struct Context;
+  class ContextImpl;
 }
 
 // Debugging define to switch what family of CPU we execute as.
@@ -31,7 +31,7 @@ public:
   // if we report anything differently then applications are likely to break
   constexpr static uint64_t CACHELINE_SIZE = 64;
 
-  void Init(FEXCore::Context::Context *ctx);
+  void Init(FEXCore::Context::ContextImpl *ctx);
 
   FEXCore::CPUID::FunctionResults RunFunction(uint32_t Function, uint32_t Leaf) {
     if (Function < Primary.size()) {
@@ -63,12 +63,52 @@ public:
       return Function_8000_0004h(Leaf, CPU % PerCPUData.size());
   }
 
+  FEXCore::CPUID::XCRResults RunXCRFunction(uint32_t Function) {
+    if (Function >= 1) {
+      // XCR function 1 is not yet supported.
+      return {};
+    }
+
+    return XCRFunction_0h();
+  }
+
 private:
-  FEXCore::Context::Context *CTX;
+  FEXCore::Context::ContextImpl *CTX;
   bool Hybrid{};
   FEX_CONFIG_OPT(Cores, THREADS);
+  FEX_CONFIG_OPT(HideHypervisorBit, HIDEHYPERVISORBIT);
+
+  // XFEATURE_ENABLED_MASK
+  // Mask that configures what features are enabled on the CPU.
+  // Affects XSAVE and XRSTOR when modified.
+  // Bit layout is as follows.
+  // [0]     - x87 enabled
+  // [1]     - SSE enabled
+  // [2]     - YMM enabled (256-bit SSE)
+  // [8:3]   - Reserved. MBZ.
+  // [9]     - MPK
+  // [10]    - Reserved. MBZ.
+  // [11]    - CET_U
+  // [12]    - CET_S
+  // [61:13] - Reserved. MBZ.
+  // [62]    - LWP (Lightweight profiling)
+  // [63]    - Reserved for XCR bit vector expansion. MBZ.
+  // Always enable x87 and SSE by default.
+  constexpr static uint64_t XCR0_X87 = 1ULL << 0;
+  constexpr static uint64_t XCR0_SSE = 1ULL << 1;
+  constexpr static uint64_t XCR0_AVX = 1ULL << 2;
+
+  uint64_t XCR0 {
+    XCR0_X87 |
+    XCR0_SSE
+  };
+
+  uint32_t SupportsAVX() const {
+    return (XCR0 & XCR0_AVX) ? 1 : 0;
+  }
 
   using FunctionHandler = FEXCore::CPUID::FunctionResults (CPUIDEmu::*)(uint32_t Leaf);
+
   struct CPUData {
     const char *ProductName{};
 #ifdef _M_ARM_64
@@ -76,7 +116,7 @@ private:
 #endif
     bool IsBig{};
   };
-  std::vector<CPUData> PerCPUData{};
+  fextl::vector<CPUData> PerCPUData{};
 
   // Functions
   FEXCore::CPUID::FunctionResults Function_0h(uint32_t Leaf);
@@ -108,6 +148,8 @@ private:
   FEXCore::CPUID::FunctionResults Function_8000_001Dh(uint32_t Leaf);
   FEXCore::CPUID::FunctionResults Function_Reserved(uint32_t Leaf);
 
+  FEXCore::CPUID::XCRResults XCRFunction_0h();
+
   void SetupHostHybridFlag();
   static constexpr std::array<FunctionHandler, 27> Primary = {
     // 0: Highest function parameter and ID

External/FEXCore/Source/Interface/Core/Core.cpp

@@ -19,10 +19,12 @@ $end_info$
 #include "Interface/Core/Interpreter/InterpreterCore.h"
 #include "Interface/Core/JIT/JITCore.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 #include "Interface/HLE/Thunks/Thunks.h"
 #include "Interface/IR/Passes/RegisterAllocationPass.h"
 #include "Interface/IR/Passes.h"
 #include "Interface/IR/PassManager.h"
+#include "Utils/Allocator/HostAllocator.h"
 
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/CodeLoader.h>
@@ -32,7 +34,6 @@ $end_info$
 #include <FEXCore/Core/SignalDelegator.h>
 #include <FEXCore/Core/X86Enums.h>
 #include <FEXCore/Debug/InternalThreadState.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/HLE/SyscallHandler.h>
 #include <FEXCore/HLE/SourcecodeResolver.h>
 #include <FEXCore/HLE/Linux/ThreadManagement.h>
@@ -42,9 +43,15 @@ $end_info$
 #include <FEXCore/IR/RegisterAllocationData.h>
 #include <FEXCore/Utils/Allocator.h>
 #include <FEXCore/Utils/Event.h>
+#include <FEXCore/Utils/File.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/Threads.h>
 #include <FEXCore/Utils/Profiler.h>
+#include <FEXCore/fextl/fmt.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/set.h>
+#include <FEXCore/fextl/sstream.h>
+#include <FEXCore/fextl/vector.h>
 #include <FEXHeaderUtils/Syscalls.h>
 #include <FEXHeaderUtils/TodoDefines.h>
 
@@ -53,33 +60,24 @@ $end_info$
 #include <atomic>
 #include <chrono>
 #include <condition_variable>
-#include <filesystem>
+#include <fcntl.h>
 #include <functional>
-#include <fstream>
-#include <map>
-#include <memory>
 #include <mutex>
 #include <queue>
-#include <set>
 #include <shared_mutex>
 #include <signal.h>
 #include <stdio.h>
-#include <string.h>
-#include <string>
 #include <string_view>
-#include <sys/mman.h>
 #include <sys/stat.h>
-#include <sys/syscall.h>
 #include <type_traits>
 #include <unistd.h>
 #include <unordered_map>
 #include <utility>
-#include <vector>
 #include <xxhash.h>
 
 
 namespace FEXCore::CPU {
-  bool CreateCPUCore(FEXCore::Context::Context *CTX) {
+  bool CreateCPUCore(Context::ContextImpl *CTX) {
     // This should be used for generating things that are shared between threads
     CTX->CPUID.Init(CTX);
     return true;
@@ -147,18 +145,14 @@ std::string_view const& GetGRegName(unsigned Reg) {
 } // namespace FEXCore::Core
 
 namespace FEXCore::Context {
-  Context::Context()
+  ContextImpl::ContextImpl()
   : IRCaptureCache {this} {
 #ifdef BLOCKSTATS
     BlockData = std::make_unique<FEXCore::BlockSamplingData>();
 #endif
     if (Config.CacheObjectCodeCompilation() != FEXCore::Config::ConfigObjectCodeHandler::CONFIG_NONE) {
-      CodeObjectCacheService = std::make_unique<FEXCore::CodeSerialize::CodeObjectSerializeService>(this);
+      CodeObjectCacheService = fextl::make_unique<FEXCore::CodeSerialize::CodeObjectSerializeService>(this);
     }
-    if (!Config.EnableAVX) {
-      HostFeatures.SupportsAVX = false;
-    }
-
     if (!Config.Is64BitMode()) {
       // When operating in 32-bit mode, the virtual memory we care about is only the lower 32-bits.
       Config.VirtualMemSize = 1ULL << 32;
@@ -170,9 +164,16 @@ namespace FEXCore::Context {
       // Only initialize symbols file if enabled. Ensures we don't pollute /tmp with empty files.
       Symbols.InitFile();
     }
+
+    // Track atomic TSO emulation configuration.
+    UpdateAtomicTSOEmulationConfig();
   }
 
-  Context::~Context() {
+  ContextImpl::~ContextImpl() {
+    if (ParentThread) {
+      DestroyThread(ParentThread);
+    }
+
     {
       if (CodeObjectCacheService) {
         CodeObjectCacheService->Shutdown();
@@ -191,44 +192,39 @@ namespace FEXCore::Context {
     }
   }
 
-  static FEXCore::Core::CPUState CreateDefaultCPUState() {
-    FEXCore::Core::CPUState NewThreadState{};
+  uint64_t ContextImpl::RestoreRIPFromHostPC(FEXCore::Core::InternalThreadState *Thread, uint64_t HostPC) {
+    const auto Frame = Thread->CurrentFrame;
+    const uint64_t BlockBegin = Frame->State.InlineJITBlockHeader;
+    const CPU::CPUBackend::JITCodeHeader *InlineHeader = reinterpret_cast<const CPU::CPUBackend::JITCodeHeader *>(BlockBegin);
 
-    // Initialize default CPU state
-    NewThreadState.rip = ~0ULL;
-    for (auto& greg : NewThreadState.gregs) {
-      greg = 0;
+    if (InlineHeader) {
+      const CPU::CPUBackend::JITCodeTail *InlineTail = reinterpret_cast<const CPU::CPUBackend::JITCodeTail *>(Frame->State.InlineJITBlockHeader + InlineHeader->OffsetToBlockTail);
+
+      // Check if the host PC is currently within a code block.
+      // If it is then RIP can be reconstructed from the beginning of the code block.
+      // This is currently as close as FEX can get RIP reconstructions.
+      if (HostPC >= reinterpret_cast<uint64_t>(BlockBegin) &&
+          HostPC < reinterpret_cast<uint64_t>(BlockBegin + InlineTail->Size)) {
+        return InlineTail->RIP;
+      }
     }
 
-    for (auto& xmm : NewThreadState.xmm.avx.data) {
-      xmm[0] = 0xDEADBEEFULL;
-      xmm[1] = 0xBAD0DAD1ULL;
-      xmm[2] = 0xDEADCAFEULL;
-      xmm[3] = 0xBAD2CAD3ULL;
-    }
-    memset(NewThreadState.flags, 0, Core::CPUState::NUM_EFLAG_BITS);
-    NewThreadState.flags[1] = 1;
-    NewThreadState.flags[9] = 1;
-    NewThreadState.FCW = 0x37F;
-    NewThreadState.FTW = 0xFFFF;
-    return NewThreadState;
+    // Fallback to what is stored in the RIP currently.
+    return Frame->State.rip;
   }
 
-  FEXCore::Core::InternalThreadState* Context::InitCore(uint64_t InitialRIP, uint64_t StackPointer) {
+  FEXCore::Core::InternalThreadState* ContextImpl::InitCore(uint64_t InitialRIP, uint64_t StackPointer) {
     // Initialize the CPU core signal handlers & DispatcherConfig
     switch (Config.Core) {
 #ifdef INTERPRETER_ENABLED
     case FEXCore::Config::CONFIG_INTERPRETER:
-      FEXCore::CPU::InitializeInterpreterSignalHandlers(this);
       BackendFeatures = FEXCore::CPU::GetInterpreterBackendFeatures();
       break;
 #endif
     case FEXCore::Config::CONFIG_IRJIT:
 #if (_M_X86_64 && JIT_X86_64)
-      FEXCore::CPU::InitializeX86JITSignalHandlers(this);
       BackendFeatures = FEXCore::CPU::GetX86JITBackendFeatures();
 #elif (_M_ARM_64 && JIT_ARM64) || defined(VIXL_SIMULATOR)
-      FEXCore::CPU::InitializeArm64JITSignalHandlers(this);
       BackendFeatures = FEXCore::CPU::GetArm64JITBackendFeatures();
 #else
       ERROR_AND_DIE_FMT("FEXCore has been compiled without a viable JIT core");
@@ -252,24 +248,37 @@ namespace FEXCore::Context {
     ERROR_AND_DIE_FMT("FEXCore has been compiled with an unknown target");
 #endif
 
-    // Initialize common signal handlers
+    // Set up the SignalDelegator config since core is initialized.
+    FEXCore::SignalDelegator::SignalDelegatorConfig SignalConfig {
+      .StaticRegisterAllocation = DispatcherConfig.StaticRegisterAllocation,
+      .SupportsAVX = HostFeatures.SupportsAVX,
 
-    auto PauseHandler = [](FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext) -> bool {
-      return Thread->CTX->Dispatcher->HandleSignalPause(Thread, Signal, info, ucontext);
+      .DispatcherBegin = Dispatcher->Start,
+      .DispatcherEnd = Dispatcher->End,
+
+      .AbsoluteLoopTopAddressFillSRA = Dispatcher->AbsoluteLoopTopAddressFillSRA,
+      .SignalHandlerReturnAddress = Dispatcher->SignalHandlerReturnAddress,
+      .SignalHandlerReturnAddressRT = Dispatcher->SignalHandlerReturnAddressRT,
+
+      .PauseReturnInstruction = Dispatcher->PauseReturnInstruction,
+      .ThreadPauseHandlerAddressSpillSRA = Dispatcher->ThreadPauseHandlerAddressSpillSRA,
+      .ThreadPauseHandlerAddress = Dispatcher->ThreadPauseHandlerAddress,
+
+      // Stop handlers.
+      .ThreadStopHandlerAddressSpillSRA = Dispatcher->ThreadStopHandlerAddressSpillSRA,
+      .ThreadStopHandlerAddress = Dispatcher->ThreadStopHandlerAddress,
+
+      // SRA information.
+      .SRAGPRCount = Dispatcher->GetSRAGPRCount(),
+      .SRAFPRCount = Dispatcher->GetSRAFPRCount(),
     };
 
-    SignalDelegation->RegisterHostSignalHandler(SignalDelegator::SIGNAL_FOR_PAUSE, PauseHandler, true);
+    Dispatcher->GetSRAGPRMapping(SignalConfig.SRAGPRMapping);
+    Dispatcher->GetSRAFPRMapping(SignalConfig.SRAFPRMapping);
 
-    auto GuestSignalHandler = [](FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext, GuestSigAction *GuestAction, stack_t *GuestStack) -> bool {
-      return Thread->CTX->Dispatcher->HandleGuestSignal(Thread, Signal, info, ucontext, GuestAction, GuestStack);
-    };
+    // Give this configuration to the SignalDelegator.
+    SignalDelegation->SetConfig(SignalConfig);
 
-    for (uint32_t Signal = 0; Signal <= SignalDelegator::MAX_SIGNALS; ++Signal) {
-      SignalDelegation->RegisterHostSignalHandlerForGuest(Signal, GuestSignalHandler);
-    }
-
-    // Initialize GDBServer after the signal handlers are installed
-    // It may install its own handlers that need to be executed AFTER the CPU cores
     if (Config.GdbServer) {
       StartGdbServer();
     }
@@ -277,12 +286,13 @@ namespace FEXCore::Context {
       StopGdbServer();
     }
 
-    ThunkHandler.reset(FEXCore::ThunkHandler::Create());
+#ifndef _WIN32
+    ThunkHandler = FEXCore::ThunkHandler::Create();
+#endif
 
     using namespace FEXCore::Core;
 
-    FEXCore::Core::CPUState NewThreadState = CreateDefaultCPUState();
-    FEXCore::Core::InternalThreadState *Thread = CreateThread(&NewThreadState, 0);
+    FEXCore::Core::InternalThreadState *Thread = CreateThread(nullptr, 0);
 
     // We are the parent thread
     ParentThread = Thread;
@@ -295,30 +305,26 @@ namespace FEXCore::Context {
     return Thread;
   }
 
-  void Context::StartGdbServer() {
+  void ContextImpl::StartGdbServer() {
+#ifndef _WIN32
     if (!DebugServer) {
-      DebugServer = std::make_unique<GdbServer>(this);
+      DebugServer = fextl::make_unique<GdbServer>(this);
       StartPaused = true;
     }
+#endif
   }
 
-  void Context::StopGdbServer() {
+  void ContextImpl::StopGdbServer() {
+#ifndef _WIN32
     DebugServer.reset();
+#endif
   }
 
-  void Context::HandleCallback(FEXCore::Core::InternalThreadState *Thread, uint64_t RIP) {
-    Thread->CTX->Dispatcher->ExecuteJITCallback(Thread->CurrentFrame, RIP);
+  void ContextImpl::HandleCallback(FEXCore::Core::InternalThreadState *Thread, uint64_t RIP) {
+    static_cast<ContextImpl*>(Thread->CTX)->Dispatcher->ExecuteJITCallback(Thread->CurrentFrame, RIP);
   }
 
-  void Context::RegisterHostSignalHandler(int Signal, HostSignalDelegatorFunction Func, bool Required) {
-      SignalDelegation->RegisterHostSignalHandler(Signal, Func, Required);
-  }
-
-  void Context::RegisterFrontendHostSignalHandler(int Signal, HostSignalDelegatorFunction Func, bool Required) {
-    SignalDelegation->RegisterFrontendHostSignalHandler(Signal, Func, Required);
-  }
-
-  void Context::WaitForIdle() {
+  void ContextImpl::WaitForIdle() {
     std::unique_lock<std::mutex> lk(IdleWaitMutex);
     IdleWaitCV.wait(lk, [this] {
       return IdleWaitRefCount.load() == 0;
@@ -327,7 +333,7 @@ namespace FEXCore::Context {
     Running = false;
   }
 
-  void Context::WaitForIdleWithTimeout() {
+  void ContextImpl::WaitForIdleWithTimeout() {
     std::unique_lock<std::mutex> lk(IdleWaitMutex);
     bool WaitResult = IdleWaitCV.wait_for(lk, std::chrono::milliseconds(1500),
       [this] {
@@ -345,20 +351,16 @@ namespace FEXCore::Context {
     WaitForIdle();
   }
 
-  void Context::NotifyPause() {
+  void ContextImpl::NotifyPause() {
 
     // Tell all the threads that they should pause
     std::lock_guard<std::mutex> lk(ThreadCreationMutex);
     for (auto &Thread : Threads) {
-      Thread->SignalReason.store(FEXCore::Core::SignalEvent::Pause);
-      if (Thread->RunningEvents.Running.load()) {
-        // Only attempt to stop this thread if it is running
-        FHU::Syscalls::tgkill(Thread->ThreadManager.PID, Thread->ThreadManager.TID, SignalDelegator::SIGNAL_FOR_PAUSE);
-      }
+      SignalDelegation->SignalThread(Thread, FEXCore::Core::SignalEvent::Pause);
     }
   }
 
-  void Context::Pause() {
+  void ContextImpl::Pause() {
     // If we aren't running, WaitForIdle will never compete.
     if (Running) {
       NotifyPause();
@@ -367,7 +369,7 @@ namespace FEXCore::Context {
     }
   }
 
-  void Context::Run() {
+  void ContextImpl::Run() {
     // Spin up all the threads
     std::lock_guard<std::mutex> lk(ThreadCreationMutex);
     for (auto &Thread : Threads) {
@@ -379,7 +381,7 @@ namespace FEXCore::Context {
     }
   }
 
-  void Context::WaitForThreadsToRun() {
+  void ContextImpl::WaitForThreadsToRun() {
     size_t NumThreads{};
     {
       std::lock_guard<std::mutex> lk(ThreadCreationMutex);
@@ -395,7 +397,7 @@ namespace FEXCore::Context {
     Running = true;
   }
 
-  void Context::Step() {
+  void ContextImpl::Step() {
     {
       std::lock_guard<std::mutex> lk(ThreadCreationMutex);
       // Walk the threads and tell them to clear their caches
@@ -415,7 +417,7 @@ namespace FEXCore::Context {
     this->Config.MaxInstPerBlock = PreviousMaxIntPerBlock;
   }
 
-  void Context::Stop(bool IgnoreCurrentThread) {
+  void ContextImpl::Stop(bool IgnoreCurrentThread) {
     pid_t tid = FHU::Syscalls::gettid();
     FEXCore::Core::InternalThreadState* CurrentThread{};
 
@@ -453,21 +455,19 @@ namespace FEXCore::Context {
     }
   }
 
-  void Context::StopThread(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::StopThread(FEXCore::Core::InternalThreadState *Thread) {
     if (Thread->RunningEvents.Running.exchange(false)) {
-      Thread->SignalReason.store(FEXCore::Core::SignalEvent::Stop);
-      FHU::Syscalls::tgkill(Thread->ThreadManager.PID, Thread->ThreadManager.TID, SignalDelegator::SIGNAL_FOR_PAUSE);
+      SignalDelegation->SignalThread(Thread, FEXCore::Core::SignalEvent::Stop);
     }
   }
 
-  void Context::SignalThread(FEXCore::Core::InternalThreadState *Thread, FEXCore::Core::SignalEvent Event) {
+  void ContextImpl::SignalThread(FEXCore::Core::InternalThreadState *Thread, FEXCore::Core::SignalEvent Event) {
     if (Thread->RunningEvents.Running.load()) {
-      Thread->SignalReason.store(Event);
-      FHU::Syscalls::tgkill(Thread->ThreadManager.PID, Thread->ThreadManager.TID, SignalDelegator::SIGNAL_FOR_PAUSE);
+      SignalDelegation->SignalThread(Thread, Event);
     }
   }
 
-  FEXCore::Context::ExitReason Context::RunUntilExit() {
+  FEXCore::Context::ExitReason ContextImpl::RunUntilExit() {
     if(!StartPaused) {
       // We will only have one thread at this point, but just in case run notify everything
       std::lock_guard lk(ThreadCreationMutex);
@@ -488,16 +488,16 @@ namespace FEXCore::Context {
     }
   }
 
-  int Context::GetProgramStatus() const {
+  int ContextImpl::GetProgramStatus() const {
     return ParentThread->StatusCode;
   }
 
-  void Context::InitializeThreadData(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::InitializeThreadData(FEXCore::Core::InternalThreadState *Thread) {
     Thread->CPUBackend->Initialize();
   }
 
   struct ExecutionThreadHandler {
-    FEXCore::Context::Context *This;
+    ContextImpl *This;
     FEXCore::Core::InternalThreadState *Thread;
   };
 
@@ -508,7 +508,7 @@ namespace FEXCore::Context {
     return nullptr;
   }
 
-  void Context::InitializeThread(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::InitializeThread(FEXCore::Core::InternalThreadState *Thread) {
     // This will create the execution thread but it won't actually start executing
     ExecutionThreadHandler *Arg = reinterpret_cast<ExecutionThreadHandler*>(FEXCore::Allocator::malloc(sizeof(ExecutionThreadHandler)));
     Arg->This = this;
@@ -530,25 +530,27 @@ namespace FEXCore::Context {
     }
   }
 
-  void Context::InitializeThreadTLSData(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::InitializeThreadTLSData(FEXCore::Core::InternalThreadState *Thread) {
     // Let's do some initial bookkeeping here
     Thread->ThreadManager.TID = FHU::Syscalls::gettid();
     Thread->ThreadManager.PID = ::getpid();
     SignalDelegation->RegisterTLSState(Thread);
-    ThunkHandler->RegisterTLSState(Thread);
+    if (ThunkHandler) {
+      ThunkHandler->RegisterTLSState(Thread);
+    }
   }
 
-  void Context::RunThread(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::RunThread(FEXCore::Core::InternalThreadState *Thread) {
     // Tell the thread to start executing
     Thread->StartRunning.NotifyAll();
   }
 
-  void Context::InitializeCompiler(FEXCore::Core::InternalThreadState* Thread) {
-    Thread->OpDispatcher = std::make_unique<FEXCore::IR::OpDispatchBuilder>(this);
+  void ContextImpl::InitializeCompiler(FEXCore::Core::InternalThreadState* Thread) {
+    Thread->OpDispatcher = fextl::make_unique<FEXCore::IR::OpDispatchBuilder>(this);
     Thread->OpDispatcher->SetMultiblock(Config.Multiblock);
-    Thread->LookupCache = std::make_unique<FEXCore::LookupCache>(this);
-    Thread->FrontendDecoder = std::make_unique<FEXCore::Frontend::Decoder>(this);
-    Thread->PassManager = std::make_unique<FEXCore::IR::PassManager>();
+    Thread->LookupCache = fextl::make_unique<FEXCore::LookupCache>(this);
+    Thread->FrontendDecoder = fextl::make_unique<FEXCore::Frontend::Decoder>(this);
+    Thread->PassManager = fextl::make_unique<FEXCore::IR::PassManager>();
     Thread->PassManager->RegisterExitHandler([this]() {
         Stop(false /* Ignore current thread */);
     });
@@ -595,11 +597,13 @@ namespace FEXCore::Context {
     }
   }
 
-  FEXCore::Core::InternalThreadState* Context::CreateThread(FEXCore::Core::CPUState *NewThreadState, uint64_t ParentTID) {
+  FEXCore::Core::InternalThreadState* ContextImpl::CreateThread(FEXCore::Core::CPUState *NewThreadState, uint64_t ParentTID) {
     FEXCore::Core::InternalThreadState *Thread = new FEXCore::Core::InternalThreadState{};
 
     // Copy over the new thread state to the new object
-    memcpy(Thread->CurrentFrame, NewThreadState, sizeof(FEXCore::Core::CPUState));
+    if (NewThreadState) {
+      memcpy(Thread->CurrentFrame, NewThreadState, sizeof(FEXCore::Core::CPUState));
+    }
     Thread->CurrentFrame->Thread = Thread;
 
     // Set up the thread manager state
@@ -608,6 +612,9 @@ namespace FEXCore::Context {
     InitializeCompiler(Thread);
     InitializeThreadData(Thread);
 
+    Thread->CurrentFrame->State.DeferredSignalRefCount.Store(0);
+    Thread->CurrentFrame->State.DeferredSignalFaultAddress = reinterpret_cast<Core::NonAtomicRefCounter<uint64_t>*>(FEXCore::Allocator::VirtualAlloc(4096));
+
     // Insert after the Thread object has been fully initialized
     {
       std::lock_guard lk(ThreadCreationMutex);
@@ -617,7 +624,7 @@ namespace FEXCore::Context {
     return Thread;
   }
 
-  void Context::DestroyThread(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::DestroyThread(FEXCore::Core::InternalThreadState *Thread) {
     // remove new thread object
     {
       std::lock_guard lk(ThreadCreationMutex);
@@ -633,10 +640,12 @@ namespace FEXCore::Context {
       // To be able to delete a thread from itself, we need to detached the std::thread object
       Thread->ExecutionThread->detach();
     }
+
+    FEXCore::Allocator::VirtualFree(reinterpret_cast<void*>(Thread->CurrentFrame->State.DeferredSignalFaultAddress), 4096);
     delete Thread;
   }
 
-  void Context::CleanupAfterFork(FEXCore::Core::InternalThreadState *LiveThread) {
+  void ContextImpl::CleanupAfterFork(FEXCore::Core::InternalThreadState *LiveThread) {
     // This function is called after fork
     // We need to cleanup some of the thread data that is dead
     for (auto &DeadThread : Threads) {
@@ -675,11 +684,11 @@ namespace FEXCore::Context {
     FEXCore::Threads::Thread::CleanupAfterFork();
   }
 
-  void Context::AddBlockMapping(FEXCore::Core::InternalThreadState *Thread, uint64_t Address, void *Ptr) {
+  void ContextImpl::AddBlockMapping(FEXCore::Core::InternalThreadState *Thread, uint64_t Address, void *Ptr) {
     Thread->LookupCache->AddBlockMapping(Address, Ptr);
   }
 
-  void Context::ClearCodeCache(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::ClearCodeCache(FEXCore::Core::InternalThreadState *Thread) {
     FEXCORE_PROFILE_INSTANT("ClearCodeCache");
 
     {
@@ -695,49 +704,46 @@ namespace FEXCore::Context {
   }
 
   static void IRDumper(FEXCore::Core::InternalThreadState *Thread, IR::IREmitter *IREmitter, uint64_t GuestRIP, IR::RegisterAllocationData* RA) {
-    FILE* f = nullptr;
-    bool CloseAfter = false;
-    const auto DumpIRStr = Thread->CTX->Config.DumpIR();
+    FEXCore::File::File FD;
+    const auto DumpIRStr = static_cast<ContextImpl*>(Thread->CTX)->Config.DumpIR();
 
     // DumpIRStr might be no if not dumping but ShouldDump is set in OpDisp
     if (DumpIRStr =="stderr" || DumpIRStr =="no") {
-      f = stderr;
+      FD = FEXCore::File::File::GetStdERR();
     }
     else if (DumpIRStr =="stdout") {
-      f = stdout;
+      FD = FEXCore::File::File::GetStdOUT();
     }
     else {
-      const auto fileName = fmt::format("{}/{:x}{}", DumpIRStr, GuestRIP, RA ? "-post.ir" : "-pre.ir");
-      f = fopen(fileName.c_str(), "w");
-      CloseAfter = true;
+      const auto fileName = fextl::fmt::format("{}/{:x}{}", DumpIRStr, GuestRIP, RA ? "-post.ir" : "-pre.ir");
+      FD = FEXCore::File::File(fileName.c_str(),
+        FEXCore::File::FileModes::WRITE |
+        FEXCore::File::FileModes::CREATE |
+        FEXCore::File::FileModes::TRUNCATE);
     }
 
-    if (f) {
-      std::stringstream out;
+    if (FD.IsValid()) {
+      fextl::stringstream out;
       auto NewIR = IREmitter->ViewIR();
       FEXCore::IR::Dump(&out, &NewIR, RA);
-      fmt::print(f,"IR-{} 0x{:x}:\n{}\n@@@@@\n", RA ? "post" : "pre", GuestRIP, out.str());
-
-      if (CloseAfter) {
-        fclose(f);
-      }
+      fextl::fmt::print(FD, "IR-{} 0x{:x}:\n{}\n@@@@@\n", RA ? "post" : "pre", GuestRIP, out.str());
     }
   };
 
-  static void ValidateIR(FEXCore::Context::Context *ctx, IR::IREmitter *IREmitter) {
+  static void ValidateIR(ContextImpl *ctx, IR::IREmitter *IREmitter) {
     // Convert to text, Parse, Convert to text again and make sure the texts match
-    std::stringstream out;
+    fextl::stringstream out;
     static auto compaction = IR::CreateIRCompaction(ctx->OpDispatcherAllocator);
     compaction->Run(IREmitter);
     auto NewIR = IREmitter->ViewIR();
     Dump(&out, &NewIR, nullptr);
     out.seekg(0);
     FEXCore::Utils::PooledAllocatorMalloc Allocator;
-    auto reparsed = IR::Parse(Allocator, &out);
+    auto reparsed = IR::Parse(Allocator, out);
     if (reparsed == nullptr) {
       LOGMAN_MSG_A_FMT("Failed to parse IR\n");
     } else {
-      std::stringstream out2;
+      fextl::stringstream out2;
       auto NewIR2 = reparsed->ViewIR();
       Dump(&out2, &NewIR2, nullptr);
       if (out.str() != out2.str()) {
@@ -748,7 +754,7 @@ namespace FEXCore::Context {
     }
   }
 
-  Context::GenerateIRResult Context::GenerateIR(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP, bool ExtendedDebugInfo) {
+  ContextImpl::GenerateIRResult ContextImpl::GenerateIR(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP, bool ExtendedDebugInfo) {
     FEXCORE_PROFILE_SCOPED("GenerateIR");
 
     Thread->OpDispatcher->ReownOrClaimBuffer();
@@ -775,7 +781,7 @@ namespace FEXCore::Context {
 
       Thread->FrontendDecoder->DecodeInstructionsAtEntry(GuestCode, GuestRIP, [Thread](uint64_t BlockEntry, uint64_t Start, uint64_t Length) {
         if (Thread->LookupCache->AddBlockExecutableRange(BlockEntry, Start, Length)) {
-          Thread->CTX->SyscallHandler->MarkGuestExecutableRange(Start, Length);
+          static_cast<ContextImpl*>(Thread->CTX)->SyscallHandler->MarkGuestExecutableRange(Thread, Start, Length);
         }
       });
 
@@ -795,13 +801,6 @@ namespace FEXCore::Context {
         // Reset any block-specific state
         Thread->OpDispatcher->StartNewBlock();
 
-        if (Config.x86dec_SynchronizeRIPOnAllBlocks) {
-          // Ensure the RIP is synchronized to the context on block entry.
-          // In the case of block linking, the RIP may not have synchronized.
-          auto NewRIP = Thread->OpDispatcher->_EntrypointOffset(Block.Entry - GuestRIP, GPRSize);
-          Thread->OpDispatcher->_StoreContext(GPRSize, IR::GPRClass, NewRIP, offsetof(FEXCore::Core::CPUState, rip));
-        }
-
         uint64_t InstsInBlock = Block.NumInstructions;
 
         for (size_t i = 0; i < InstsInBlock; ++i) {
@@ -856,6 +855,9 @@ namespace FEXCore::Context {
             }
           }
           else {
+            if (TableInfo) {
+              LogMan::Msg::EFmt("Invalid or Unknown instruction: {} 0x{:x}", TableInfo->Name ?: "UND", Block.Entry - GuestRIP);
+            }
             // Invalid instruction
             Thread->OpDispatcher->InvalidOp(DecodedInfo);
             Thread->OpDispatcher->_ExitFunction(Thread->OpDispatcher->_EntrypointOffset(Block.Entry - GuestRIP, GPRSize));
@@ -893,14 +895,14 @@ namespace FEXCore::Context {
 
     IR::IREmitter *IREmitter = Thread->OpDispatcher.get();
 
-    auto ShouldDump = Thread->CTX->Config.DumpIR() != "no" || Thread->OpDispatcher->ShouldDump;
+    auto ShouldDump = static_cast<ContextImpl*>(Thread->CTX)->Config.DumpIR() != "no" || Thread->OpDispatcher->ShouldDump;
     // Debug
     {
       if (ShouldDump) {
         IRDumper(Thread, IREmitter, GuestRIP, nullptr);
       }
 
-      if (Thread->CTX->Config.ValidateIRarser) {
+      if (static_cast<ContextImpl*>(Thread->CTX)->Config.ValidateIRarser) {
         ValidateIR(this, IREmitter);
       }
     }
@@ -930,7 +932,7 @@ namespace FEXCore::Context {
     };
   }
 
-  Context::CompileCodeResult Context::CompileCode(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
+  ContextImpl::CompileCodeResult ContextImpl::CompileCode(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
     FEXCore::IR::IRListView *IRList {};
     FEXCore::Core::DebugData *DebugData {};
     FEXCore::IR::RegisterAllocationData::UniquePtr RAData {};
@@ -958,7 +960,7 @@ namespace FEXCore::Context {
     }
 
     if (SourcecodeResolver && Config.GDBSymbols()) {
-      auto AOTIRCacheEntry = SyscallHandler->LookupAOTIRCacheEntry(GuestRIP);
+      auto AOTIRCacheEntry = SyscallHandler->LookupAOTIRCacheEntry(Thread, GuestRIP);
       if (AOTIRCacheEntry.Entry && !AOTIRCacheEntry.Entry->ContainsCode) {
         AOTIRCacheEntry.Entry->SourcecodeMap =
             SourcecodeResolver->GenerateMap(AOTIRCacheEntry.Entry->Filename, AOTIRCacheEntry.Entry->FileId);
@@ -967,7 +969,7 @@ namespace FEXCore::Context {
 
     // AOT IR bookkeeping and cache
     {
-      auto [IRCopy, RACopy, DebugDataCopy, _StartAddr, _Length, _GeneratedIR] = IRCaptureCache.PreGenerateIRFetch(GuestRIP, IRList);
+      auto [IRCopy, RACopy, DebugDataCopy, _StartAddr, _Length, _GeneratedIR] = IRCaptureCache.PreGenerateIRFetch(Thread, GuestRIP, IRList);
       if (_GeneratedIR) {
         // Setup pointers to internal structures
         IRList = IRCopy;
@@ -990,9 +992,6 @@ namespace FEXCore::Context {
       StartAddr = _StartAddr;
       Length = _Length;
 
-      // Increment stats
-      Thread->Stats.BlocksCompiled.fetch_add(1);
-
       // These blocks aren't already in the cache
       GeneratedIR = true;
     }
@@ -1002,7 +1001,10 @@ namespace FEXCore::Context {
     }
     // Attempt to get the CPU backend to compile this code
     return {
-      .CompiledCode = Thread->CPUBackend->CompileCode(GuestRIP, IRList, DebugData, RAData.get(), GetGdbServerStatus()),
+      // FEX currently throws away the CPUBackend::CompiledCode object other than the entrypoint
+      // In the future with code caching getting wired up, we will pass the rest of the data forward.
+      // TODO: Pass the data forward when code caching is wired up to this.
+      .CompiledCode = Thread->CPUBackend->CompileCode(GuestRIP, IRList, DebugData, RAData.get(), GetGdbServerStatus()).BlockEntry,
       .IRData = IRList,
       .DebugData = DebugData,
       .RAData = std::move(RAData),
@@ -1012,7 +1014,7 @@ namespace FEXCore::Context {
     };
   }
 
-  void Context::CompileBlockJit(FEXCore::Core::CpuStateFrame *Frame, uint64_t GuestRIP) {
+  void ContextImpl::CompileBlockJit(FEXCore::Core::CpuStateFrame *Frame, uint64_t GuestRIP) {
     auto NewBlock = CompileBlock(Frame, GuestRIP);
 
     if (NewBlock == 0) {
@@ -1023,7 +1025,7 @@ namespace FEXCore::Context {
     }
   }
 
-  uintptr_t Context::CompileBlock(FEXCore::Core::CpuStateFrame *Frame, uint64_t GuestRIP) {
+  uintptr_t ContextImpl::CompileBlock(FEXCore::Core::CpuStateFrame *Frame, uint64_t GuestRIP) {
     FEXCORE_PROFILE_SCOPED("CompileBlock");
     auto Thread = Frame->Thread;
 
@@ -1060,7 +1062,7 @@ namespace FEXCore::Context {
       auto FragmentBasePtr = reinterpret_cast<uint8_t *>(CodePtr);
 
       if (DebugData) {
-        auto GuestRIPLookup = SyscallHandler->LookupAOTIRCacheEntry(GuestRIP);
+        auto GuestRIPLookup = SyscallHandler->LookupAOTIRCacheEntry(Thread, GuestRIP);
 
         if (DebugData->Subblocks.size()) {
           for (auto& Subblock: DebugData->Subblocks) {
@@ -1085,7 +1087,7 @@ namespace FEXCore::Context {
     if (CodeObjectCacheService &&
         Config.CacheObjectCodeCompilation == FEXCore::Config::ConfigObjectCodeHandler::CONFIG_READWRITE &&
         DebugData) {
-      CodeObjectCacheService->AsyncAddSerializationJob(std::make_unique<CodeSerialize::AsyncJobHandler::SerializationJobData>(
+      CodeObjectCacheService->AsyncAddSerializationJob(fextl::make_unique<CodeSerialize::AsyncJobHandler::SerializationJobData>(
         CodeSerialize::AsyncJobHandler::SerializationJobData {
           .GuestRIP = GuestRIP,
           .GuestCodeLength = Length,
@@ -1123,18 +1125,19 @@ namespace FEXCore::Context {
     return (uintptr_t)CodePtr;
   }
 
-  void Context::ExecutionThread(FEXCore::Core::InternalThreadState *Thread) {
+  void ContextImpl::ExecutionThread(FEXCore::Core::InternalThreadState *Thread) {
     Core::ThreadData.Thread = Thread;
     Thread->ExitReason = FEXCore::Context::ExitReason::EXIT_WAITING;
 
     InitializeThreadTLSData(Thread);
+    Alloc::OSAllocator::RegisterTLSData(Thread);
 
     ++IdleWaitRefCount;
 
     // Now notify the thread that we are initialized
     Thread->ThreadWaiting.NotifyAll();
 
-    if (Thread != Thread->CTX->ParentThread || StartPaused || Thread->StartPaused) {
+    if (Thread != static_cast<ContextImpl*>(Thread->CTX)->ParentThread || StartPaused || Thread->StartPaused) {
       // Parent thread doesn't need to wait to run
       Thread->StartRunning.Wait();
     }
@@ -1146,7 +1149,7 @@ namespace FEXCore::Context {
 
       Thread->RunningEvents.Running = true;
 
-      Thread->CTX->Dispatcher->ExecuteDispatch(Thread->CurrentFrame);
+      static_cast<ContextImpl*>(Thread->CTX)->Dispatcher->ExecuteDispatch(Thread->CurrentFrame);
 
       Thread->RunningEvents.Running = false;
     }
@@ -1172,10 +1175,11 @@ namespace FEXCore::Context {
     --IdleWaitRefCount;
     IdleWaitCV.notify_all();
 
+    Alloc::OSAllocator::UninstallTLSData(Thread);
     SignalDelegation->UninstallTLSState(Thread);
 
     // If the parent thread is waiting to join, then we can't destroy our thread object
-    if (!Thread->DestroyedByParent && Thread != Thread->CTX->ParentThread) {
+    if (!Thread->DestroyedByParent && Thread != static_cast<ContextImpl*>(Thread->CTX)->ParentThread) {
       Thread->CTX->DestroyThread(Thread);
     }
   }
@@ -1188,36 +1192,43 @@ namespace FEXCore::Context {
 
     for (auto it = lower; it != upper; it++) {
       for (auto Address: it->second) {
-        Context::ThreadRemoveCodeEntry(Thread, Address);
+        ContextImpl::ThreadRemoveCodeEntry(Thread, Address);
       }
       it->second.clear();
     }
   }
 
-  static void InvalidateGuestCodeRangeInternal(FEXCore::Context::Context *CTX, uint64_t Start, uint64_t Length) {
-    std::lock_guard lk(CTX->ThreadCreationMutex);
+  static void InvalidateGuestCodeRangeInternal(ContextImpl *CTX, uint64_t Start, uint64_t Length) {
+    std::lock_guard lk(static_cast<ContextImpl*>(CTX)->ThreadCreationMutex);
 
-    for (auto &Thread : CTX->Threads) {
+    for (auto &Thread : static_cast<ContextImpl*>(CTX)->Threads) {
       InvalidateGuestThreadCodeRange(Thread, Start, Length);
     }
   }
 
-  void InvalidateGuestCodeRange(FEXCore::Context::Context *CTX, uint64_t Start, uint64_t Length) {
-    FHU::ScopedSignalMaskWithUniqueLock CodeInvalidationLock(CTX->CodeInvalidationMutex);
+  void ContextImpl::InvalidateGuestCodeRange(FEXCore::Core::InternalThreadState *Thread, uint64_t Start, uint64_t Length) {
+    // Potential deferred since Thread might not be valid.
+    // Thread object isn't valid very early in frontend's initialization.
+    // To be more optimal the frontend should provide this code with a valid Thread object earlier.
+    ScopedPotentialDeferredSignalWithUniqueLock CodeInvalidationLock(CodeInvalidationMutex, Thread);
 
-    InvalidateGuestCodeRangeInternal(CTX, Start, Length);
+    InvalidateGuestCodeRangeInternal(this, Start, Length);
   }
 
-  void InvalidateGuestCodeRange(FEXCore::Context::Context *CTX, uint64_t Start, uint64_t Length, std::function<void(uint64_t start, uint64_t Length)> CallAfter) {
-    FHU::ScopedSignalMaskWithUniqueLock CodeInvalidationLock(CTX->CodeInvalidationMutex);
+  void ContextImpl::InvalidateGuestCodeRange(FEXCore::Core::InternalThreadState *Thread, uint64_t Start, uint64_t Length, std::function<void(uint64_t start, uint64_t Length)> CallAfter) {
+    // Potential deferred since Thread might not be valid.
+    // Thread object isn't valid very early in frontend's initialization.
+    // To be more optimal the frontend should provide this code with a valid Thread object earlier.
+    ScopedPotentialDeferredSignalWithUniqueLock CodeInvalidationLock(CodeInvalidationMutex, Thread);
 
-    InvalidateGuestCodeRangeInternal(CTX, Start, Length);
+    InvalidateGuestCodeRangeInternal(this, Start, Length);
     CallAfter(Start, Length);
   }
 
-  void Context::MarkMemoryShared() {
+  void ContextImpl::MarkMemoryShared() {
     if (!IsMemoryShared) {
       IsMemoryShared = true;
+      UpdateAtomicTSOEmulationConfig();
 
       if (Config.TSOAutoMigration) {
         std::lock_guard<std::mutex> lkThreads(ThreadCreationMutex);
@@ -1235,18 +1246,14 @@ namespace FEXCore::Context {
     }
   }
 
-  void MarkMemoryShared(FEXCore::Context::Context *CTX) {
-    CTX->MarkMemoryShared();
-  }
-
-  void Context::ThreadAddBlockLink(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestDestination, uintptr_t HostLink, const std::function<void()> &delinker) {
-    std::shared_lock lk(Thread->CTX->CodeInvalidationMutex);
+  void ContextImpl::ThreadAddBlockLink(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestDestination, uintptr_t HostLink, const std::function<void()> &delinker) {
+    std::shared_lock lk(static_cast<ContextImpl*>(Thread->CTX)->CodeInvalidationMutex);
 
     Thread->LookupCache->AddBlockLink(GuestDestination, HostLink, delinker);
   }
 
-  void Context::ThreadRemoveCodeEntry(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
-    LogMan::Throw::AFmt(Thread->CTX->CodeInvalidationMutex.try_lock() == false, "CodeInvalidationMutex needs to be unique_locked here");
+  void ContextImpl::ThreadRemoveCodeEntry(FEXCore::Core::InternalThreadState *Thread, uint64_t GuestRIP) {
+    LogMan::Throw::AFmt(static_cast<ContextImpl*>(Thread->CTX)->CodeInvalidationMutex.try_lock() == false, "CodeInvalidationMutex needs to be unique_locked here");
 
     std::lock_guard<std::recursive_mutex> lk(Thread->LookupCache->WriteLock);
 
@@ -1254,7 +1261,7 @@ namespace FEXCore::Context {
     Thread->LookupCache->Erase(GuestRIP);
   }
 
-  CustomIRResult Context::AddCustomIREntrypoint(uintptr_t Entrypoint, std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)> Handler, void *Creator, void *Data) {
+  CustomIRResult ContextImpl::AddCustomIREntrypoint(uintptr_t Entrypoint, std::function<void(uintptr_t Entrypoint, FEXCore::IR::IREmitter *)> Handler, void *Creator, void *Data) {
     LOGMAN_THROW_A_FMT(Config.Is64BitMode || !(Entrypoint >> 32), "64-bit Entrypoint in 32-bit mode {:x}", Entrypoint);
 
     std::unique_lock lk(CustomIRMutex);
@@ -1270,66 +1277,23 @@ namespace FEXCore::Context {
     }
   }
 
-  void Context::RemoveCustomIREntrypoint(uintptr_t Entrypoint) {
+  void ContextImpl::RemoveCustomIREntrypoint(uintptr_t Entrypoint) {
     LOGMAN_THROW_A_FMT(Config.Is64BitMode || !(Entrypoint >> 32), "64-bit Entrypoint in 32-bit mode {:x}", Entrypoint);
 
     std::scoped_lock lk(CustomIRMutex);
 
-    InvalidateGuestCodeRange(this, Entrypoint, 1, [this](uint64_t Entrypoint, uint64_t) {
+    InvalidateGuestCodeRange(nullptr, Entrypoint, 1, [this](uint64_t Entrypoint, uint64_t) {
       CustomIRHandlers.erase(Entrypoint);
     });
   }
 
-  // Debug interface
-  void Context::CompileRIP(FEXCore::Core::InternalThreadState *Thread, uint64_t RIP) {
-    uint64_t RIPBackup = Thread->CurrentFrame->State.rip;
-    Thread->CurrentFrame->State.rip = RIP;
-
-    // Erase the RIP from all the storage backings if it exists
-    ThreadRemoveCodeEntry(Thread, RIP);
-
-    // We don't care if compilation passes or not
-    CompileBlock(Thread->CurrentFrame, RIP);
-
-    Thread->CurrentFrame->State.rip = RIPBackup;
-  }
-
-  uint64_t Context::GetThreadCount() const {
-    return Threads.size();
-  }
-
-  FEXCore::Core::RuntimeStats *Context::GetRuntimeStatsForThread(uint64_t Thread) {
-    return &Threads[Thread]->Stats;
-  }
-
-  bool Context::GetDebugDataForRIP(uint64_t RIP, FEXCore::Core::DebugData *Data) {
-    std::lock_guard<std::recursive_mutex> lk(ParentThread->LookupCache->WriteLock);
-    auto it = ParentThread->DebugStore.find(RIP);
-    if (it == ParentThread->DebugStore.end()) {
-      return false;
-    }
-
-    memcpy(Data, it->second.DebugData.get(), sizeof(FEXCore::Core::DebugData));
-    return true;
-  }
-
-  bool Context::FindHostCodeForRIP(uint64_t RIP, uint8_t **Code) {
-    uintptr_t HostCode = ParentThread->LookupCache->FindBlock(RIP);
-    if (!HostCode) {
-      return false;
-    }
-
-    *Code = reinterpret_cast<uint8_t*>(HostCode);
-    return true;
-  }
-
   uint64_t HandleSyscall(FEXCore::HLE::SyscallHandler *Handler, FEXCore::Core::CpuStateFrame *Frame, FEXCore::HLE::SyscallArguments *Args) {
     uint64_t Result{};
     Result = Handler->HandleSyscall(Frame, Args);
     return Result;
   }
 
-  IR::AOTIRCacheEntry *Context::LoadAOTIRCacheEntry(const std::string &filename) {
+  IR::AOTIRCacheEntry *ContextImpl::LoadAOTIRCacheEntry(const fextl::string &filename) {
     auto rv = IRCaptureCache.LoadAOTIRCacheEntry(filename);
     if (DebugServer) {
       DebugServer->AlertLibrariesChanged();
@@ -1337,19 +1301,20 @@ namespace FEXCore::Context {
     return rv;
   }
 
-  void Context::UnloadAOTIRCacheEntry(IR::AOTIRCacheEntry *Entry) {
+  void ContextImpl::UnloadAOTIRCacheEntry(IR::AOTIRCacheEntry *Entry) {
     IRCaptureCache.UnloadAOTIRCacheEntry(Entry);
     if (DebugServer) {
       DebugServer->AlertLibrariesChanged();
     }
   }
 
-
-  void Context::AppendThunkDefinitions(std::vector<FEXCore::IR::ThunkDefinition> const& Definitions) {
-    ThunkHandler->AppendThunkDefinitions(Definitions);
+  void ContextImpl::AppendThunkDefinitions(fextl::vector<FEXCore::IR::ThunkDefinition> const& Definitions) {
+    if (ThunkHandler) {
+      ThunkHandler->AppendThunkDefinitions(Definitions);
+    }
   }
 
-  void ConfigureAOTGen(FEXCore::Core::InternalThreadState *Thread, std::set<uint64_t> *ExternalBranches, uint64_t SectionMaxAddress) {
+  void ContextImpl::ConfigureAOTGen(FEXCore::Core::InternalThreadState *Thread, fextl::set<uint64_t> *ExternalBranches, uint64_t SectionMaxAddress) {
     Thread->FrontendDecoder->SetExternalBranches(ExternalBranches);
     Thread->FrontendDecoder->SetSectionMaxAddress(SectionMaxAddress);
   }

External/FEXCore/Source/Interface/Core/Core.h

@@ -5,7 +5,7 @@ namespace FEXCore {
 }
 
 namespace FEXCore::Context {
-  struct Context;
+  class ContextImpl;
 }
 
 namespace FEXCore::CPU {
@@ -17,7 +17,7 @@ namespace FEXCore::CPU {
    *
    * @return true if core was able to be create
    */
-  bool CreateCPUCore(FEXCore::Context::Context *CTX);
+  bool CreateCPUCore(FEXCore::Context::ContextImpl *CTX);
 
-  bool LoadCode(FEXCore::Context::Context *CTX, FEXCore::CodeLoader *Loader);
+  bool LoadCode(FEXCore::Context::ContextImpl *CTX, FEXCore::CodeLoader *Loader);
 }

External/FEXCore/Source/Interface/Core/Dispatcher/Arm64Dispatcher.cpp

@@ -1,7 +1,6 @@
 #include "Interface/Core/ArchHelpers/CodeEmitter/Emitter.h"
 #include "Interface/Core/LookupCache.h"
 
-#include "Interface/Core/ArchHelpers/MContext.h"
 #include "Interface/Core/Dispatcher/Arm64Dispatcher.h"
 #include "Interface/Core/Interpreter/InterpreterClass.h"
 
@@ -12,6 +11,7 @@
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/X86Enums.h>
 #include <FEXCore/Debug/InternalThreadState.h>
+#include <FEXCore/fextl/memory.h>
 #include <FEXHeaderUtils/Syscalls.h>
 
 #include <array>
@@ -28,14 +28,13 @@
 #include <code-buffer-vixl.h>
 #include <platform-vixl.h>
 
-#include <sys/syscall.h>
 #include <unistd.h>
 
 namespace FEXCore::CPU {
 
 constexpr size_t MAX_DISPATCHER_CODE_SIZE = 4096;
 
-Arm64Dispatcher::Arm64Dispatcher(FEXCore::Context::Context *ctx, const DispatcherConfig &config)
+Arm64Dispatcher::Arm64Dispatcher(FEXCore::Context::ContextImpl *ctx, const DispatcherConfig &config)
   : FEXCore::CPU::Dispatcher(ctx, config), Arm64Emitter(ctx, MAX_DISPATCHER_CODE_SIZE)
 #ifdef VIXL_SIMULATOR
   , Simulator {&Decoder}
@@ -130,13 +129,6 @@ void Arm64Dispatcher::EmitDispatcher() {
     and_(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r3, RipReg.R(), ARMEmitter::Reg::r3);
   }
 
-#ifdef VIXL_SIMULATOR
-  // VIXL simulator can't run syscalls.
-  constexpr bool SignalSafeCompile = false;
-#else
-  constexpr bool SignalSafeCompile = true;
-#endif
-
   ARMEmitter::ForwardLabel NoBlock;
 
   {
@@ -184,7 +176,7 @@ void Arm64Dispatcher::EmitDispatcher() {
   {
     ThreadStopHandlerAddressSpillSRA = GetCursorAddress<uint64_t>();
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
     ThreadStopHandlerAddress = GetCursorAddress<uint64_t>();
 
@@ -198,26 +190,11 @@ void Arm64Dispatcher::EmitDispatcher() {
   {
     ExitFunctionLinkerAddress = GetCursorAddress<uint64_t>();
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
-    if (SignalSafeCompile) {
-      // When compiling code, mask all signals to reduce the chance of reentrant allocations
-      // Args:
-      // X0: SETMASK
-      // X1: Pointer to mask value (uint64_t)
-      // X2: Pointer to old mask value (uint64_t)
-      // X3: Size of mask, sizeof(uint64_t)
-      // X8: Syscall
-
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, ~0ULL);
-      stp<ARMEmitter::IndexType::PRE>(ARMEmitter::XReg::x0, ARMEmitter::XReg::x0, ARMEmitter::Reg::rsp, -16);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, SIG_SETMASK);
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, ARMEmitter::Reg::rsp, 0);
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r2, ARMEmitter::Reg::rsp, 0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r3, 8);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r8, SYS_rt_sigprocmask);
-      svc(0);
-    }
+    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+    add(ARMEmitter::Size::i64Bit, ARMEmitter::XReg::x0, ARMEmitter::XReg::x0, 1);
+    str(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
 
     mov(ARMEmitter::XReg::x0, STATE);
     mov(ARMEmitter::XReg::x1, ARMEmitter::XReg::lr);
@@ -229,26 +206,17 @@ void Arm64Dispatcher::EmitDispatcher() {
     blr(ARMEmitter::Reg::r2);
 #endif
 
-    if (SignalSafeCompile) {
-      // Now restore the signal mask
-      // Living in the same location
-
-      mov(ARMEmitter::XReg::x4, ARMEmitter::XReg::x0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, SIG_SETMASK);
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, ARMEmitter::Reg::rsp, 0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r2, 0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r3, 8);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r8, SYS_rt_sigprocmask);
-      svc(0);
-
-      // Bring stack back
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, 16);
-      mov(ARMEmitter::XReg::x0, ARMEmitter::XReg::x4);
-    }
-
     if (config.StaticRegisterAllocation)
       FillStaticRegs();
 
+    ldr(ARMEmitter::XReg::x1, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+    subs(ARMEmitter::Size::i64Bit, ARMEmitter::XReg::x1, ARMEmitter::XReg::x1, 1);
+    str(ARMEmitter::XReg::x1, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+
+    // Trigger segfault if any deferred signals are pending
+    ldr(ARMEmitter::XReg::x1, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalFaultAddress));
+    str(ARMEmitter::XReg::zr, ARMEmitter::XReg::x1, 0);
+
     br(ARMEmitter::Reg::r0);
   }
 
@@ -257,29 +225,11 @@ void Arm64Dispatcher::EmitDispatcher() {
     Bind(&NoBlock);
 
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
-    if (SignalSafeCompile) {
-      // When compiling code, mask all signals to reduce the chance of reentrant allocations
-      // Args:
-      // X0: SETMASK
-      // X1: Pointer to mask value (uint64_t)
-      // X2: Pointer to old mask value (uint64_t)
-      // X3: Size of mask, sizeof(uint64_t)
-      // X8: Syscall
-
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, ~0ULL);
-      stp<ARMEmitter::IndexType::PRE>(ARMEmitter::XReg::x0, ARMEmitter::XReg::x2, ARMEmitter::Reg::rsp, -16);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, SIG_SETMASK);
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, ARMEmitter::Reg::rsp, 0);
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r2, ARMEmitter::Reg::rsp, 0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r3, 8);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r8, SYS_rt_sigprocmask);
-      svc(0);
-
-      // Reload x2 to bring back RIP
-      ldr(ARMEmitter::XReg::x2, ARMEmitter::Reg::rsp, 8);
-    }
+    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+    add(ARMEmitter::Size::i64Bit, ARMEmitter::XReg::x0, ARMEmitter::XReg::x0, 1);
+    str(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
 
     ldr(ARMEmitter::XReg::x0, &l_CTX);
     mov(ARMEmitter::XReg::x1, STATE);
@@ -292,23 +242,17 @@ void Arm64Dispatcher::EmitDispatcher() {
     blr(ARMEmitter::Reg::r3); // { CTX, Frame, RIP}
 #endif
 
-    if (SignalSafeCompile) {
-      // Now restore the signal mask
-      // Living in the same location
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, SIG_SETMASK);
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, ARMEmitter::Reg::rsp, 0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r2, 0);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r3, 8);
-      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r8, SYS_rt_sigprocmask);
-      svc(0);
-
-      // Bring stack back
-      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, 16);
-    }
-
     if (config.StaticRegisterAllocation)
       FillStaticRegs();
 
+    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+    subs(ARMEmitter::Size::i64Bit, ARMEmitter::XReg::x0, ARMEmitter::XReg::x0, 1);
+    str(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount));
+
+    // Trigger segfault if any deferred signals are pending
+    ldr(TMP1, STATE, offsetof(FEXCore::Core::CPUState, DeferredSignalFaultAddress));
+    str(ARMEmitter::XReg::zr, TMP1, 0);
+
     b(&LoopTop);
   }
 
@@ -334,7 +278,7 @@ void Arm64Dispatcher::EmitDispatcher() {
     GuestSignal_SIGILL = GetCursorAddress<uint64_t>();
 
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
     hlt(0);
   }
@@ -345,7 +289,7 @@ void Arm64Dispatcher::EmitDispatcher() {
     GuestSignal_SIGTRAP  = GetCursorAddress<uint64_t>();
 
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
     brk(0);
   }
@@ -356,20 +300,28 @@ void Arm64Dispatcher::EmitDispatcher() {
     GuestSignal_SIGSEGV = GetCursorAddress<uint64_t>();
 
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
     // hlt/udf = SIGILL
     // brk = SIGTRAP
     // ??? = SIGSEGV
     // Force a SIGSEGV by loading zero
-    LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, 0);
-    ldr(ARMEmitter::XReg::x1, ARMEmitter::Reg::r1);
+    if (CTX->ExitOnHLTEnabled()) {
+      ldr(ARMEmitter::XReg::x0, STATE_PTR(CpuStateFrame, ReturningStackLocation));
+      add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::r0, 0);
+      PopCalleeSavedRegisters();
+      ret();
+    }
+    else {
+      LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, 0);
+      ldr(ARMEmitter::XReg::x1, ARMEmitter::Reg::r1);
+    }
   }
 
   {
     ThreadPauseHandlerAddressSpillSRA = GetCursorAddress<uint64_t>();
     if (config.StaticRegisterAllocation)
-      SpillStaticRegs();
+      SpillStaticRegs(TMP1);
 
     ThreadPauseHandlerAddress = GetCursorAddress<uint64_t>();
     // We are pausing, this means the frontend should be waiting for this thread to idle
@@ -446,7 +398,7 @@ void Arm64Dispatcher::EmitDispatcher() {
     LUDIVHandlerAddress = GetCursorAddress<uint64_t>();
 
     PushDynamicRegsAndLR(ARMEmitter::Reg::r3);
-    SpillStaticRegs();
+    SpillStaticRegs(ARMEmitter::Reg::r3);
 
     ldr(ARMEmitter::XReg::x3, STATE_PTR(CpuStateFrame, Pointers.AArch64.LUDIV));
 #ifdef VIXL_SIMULATOR
@@ -468,7 +420,7 @@ void Arm64Dispatcher::EmitDispatcher() {
     LDIVHandlerAddress = GetCursorAddress<uint64_t>();
 
     PushDynamicRegsAndLR(ARMEmitter::Reg::r3);
-    SpillStaticRegs();
+    SpillStaticRegs(ARMEmitter::Reg::r3);
 
     ldr(ARMEmitter::XReg::x3, STATE_PTR(CpuStateFrame, Pointers.AArch64.LDIV));
 #ifdef VIXL_SIMULATOR
@@ -490,7 +442,7 @@ void Arm64Dispatcher::EmitDispatcher() {
     LUREMHandlerAddress = GetCursorAddress<uint64_t>();
 
     PushDynamicRegsAndLR(ARMEmitter::Reg::r3);
-    SpillStaticRegs();
+    SpillStaticRegs(ARMEmitter::Reg::r3);
 
     ldr(ARMEmitter::XReg::x3, STATE_PTR(CpuStateFrame, Pointers.AArch64.LUREM));
 #ifdef VIXL_SIMULATOR
@@ -512,7 +464,7 @@ void Arm64Dispatcher::EmitDispatcher() {
     LREMHandlerAddress = GetCursorAddress<uint64_t>();
 
     PushDynamicRegsAndLR(ARMEmitter::Reg::r3);
-    SpillStaticRegs();
+    SpillStaticRegs(ARMEmitter::Reg::r3);
 
     ldr(ARMEmitter::XReg::x3, STATE_PTR(CpuStateFrame, Pointers.AArch64.LREM));
 
@@ -543,7 +495,7 @@ void Arm64Dispatcher::EmitDispatcher() {
   ClearICache(reinterpret_cast<void*>(DispatchPtr), End - reinterpret_cast<uint64_t>(DispatchPtr));
 
   if (CTX->Config.BlockJITNaming()) {
-    std::string Name = "Dispatch_" + std::to_string(FHU::Syscalls::gettid());
+    fextl::string Name = fextl::fmt::format("Dispatch_{}", FHU::Syscalls::gettid());
     CTX->Symbols.Register(reinterpret_cast<void*>(DispatchPtr), End - reinterpret_cast<uint64_t>(DispatchPtr), Name);
   }
   if (CTX->Config.GlobalJITNaming()) {
@@ -578,10 +530,10 @@ size_t Arm64Dispatcher::GenerateGDBPauseCheck(uint8_t *CodeBuffer, uint64_t Gues
   // If we have a gdb server running then run in a less efficient mode that checks if we need to exit
   // This happens when single stepping
 
-  static_assert(sizeof(FEXCore::Context::Context::Config.RunningMode) == 4, "This is expected to be size of 4");
+  static_assert(sizeof(FEXCore::Context::ContextImpl::Config.RunningMode) == 4, "This is expected to be size of 4");
   emit.ldr(ARMEmitter::XReg::x0, STATE_PTR(CpuStateFrame, Thread));
   emit.ldr(ARMEmitter::XReg::x0, ARMEmitter::Reg::r0, offsetof(FEXCore::Core::InternalThreadState, CTX)); // Get Context
-  emit.ldr(ARMEmitter::WReg::w0, ARMEmitter::Reg::r0, offsetof(FEXCore::Context::Context, Config.RunningMode));
+  emit.ldr(ARMEmitter::WReg::w0, ARMEmitter::Reg::r0, offsetof(FEXCore::Context::ContextImpl, Config.RunningMode));
 
   // If the value == 0 then we don't need to stop
   emit.cbz(ARMEmitter::Size::i32Bit, ARMEmitter::Reg::r0, &RunBlock);
@@ -626,28 +578,6 @@ size_t Arm64Dispatcher::GenerateInterpreterTrampoline(uint8_t *CodeBuffer) {
   return UsedBytes;
 }
 
-void Arm64Dispatcher::SpillSRA(FEXCore::Core::InternalThreadState *Thread, void *ucontext, uint32_t IgnoreMask) {
-  for (size_t i = 0; i < SRA64.size(); i++) {
-    if (IgnoreMask & (1U << SRA64[i].Idx())) {
-      // Skip this one, it's already spilled
-      continue;
-    }
-    Thread->CurrentFrame->State.gregs[i] = ArchHelpers::Context::GetArmReg(ucontext, SRA64[i].Idx());
-  }
-
-  if (EmitterCTX->HostFeatures.SupportsAVX) {
-    for (size_t i = 0; i < SRAFPR.size(); i++) {
-      auto FPR = ArchHelpers::Context::GetArmFPR(ucontext, SRAFPR[i].Idx());
-      memcpy(&Thread->CurrentFrame->State.xmm.avx.data[i][0], &FPR, sizeof(__uint128_t));
-    }
-  } else {
-    for (size_t i = 0; i < SRAFPR.size(); i++) {
-      auto FPR = ArchHelpers::Context::GetArmFPR(ucontext, SRAFPR[i].Idx());
-      memcpy(&Thread->CurrentFrame->State.xmm.sse.data[i][0], &FPR, sizeof(__uint128_t));
-    }
-  }
-}
-
 void Arm64Dispatcher::InitThreadPointers(FEXCore::Core::InternalThreadState *Thread) {
   // Setup dispatcher specific pointers that need to be accessed from JIT code
   {
@@ -672,8 +602,8 @@ void Arm64Dispatcher::InitThreadPointers(FEXCore::Core::InternalThreadState *Thr
   }
 }
 
-std::unique_ptr<Dispatcher> Dispatcher::CreateArm64(FEXCore::Context::Context *CTX, const DispatcherConfig &Config) {
-  return std::make_unique<Arm64Dispatcher>(CTX, Config);
+fextl::unique_ptr<Dispatcher> Dispatcher::CreateArm64(FEXCore::Context::ContextImpl *CTX, const DispatcherConfig &Config) {
+  return fextl::make_unique<Arm64Dispatcher>(CTX, Config);
 }
 
 }

External/FEXCore/Source/Interface/Core/Dispatcher/Arm64Dispatcher.h

@@ -7,10 +7,6 @@
 #include <aarch64/simulator-aarch64.h>
 #endif
 
-namespace FEXCore::Context {
-struct Context;
-}
-
 namespace FEXCore::Core {
 struct InternalThreadState;
 }
@@ -22,7 +18,7 @@ namespace FEXCore::CPU {
 
 class Arm64Dispatcher final : public Dispatcher, public Arm64Emitter {
   public:
-    Arm64Dispatcher(FEXCore::Context::Context *ctx, const DispatcherConfig &config);
+    Arm64Dispatcher(FEXCore::Context::ContextImpl *ctx, const DispatcherConfig &config);
     void InitThreadPointers(FEXCore::Core::InternalThreadState *Thread) override;
     size_t GenerateGDBPauseCheck(uint8_t *CodeBuffer, uint64_t GuestRIP) override;
     size_t GenerateInterpreterTrampoline(uint8_t *CodeBuffer) override;
@@ -34,8 +30,25 @@ class Arm64Dispatcher final : public Dispatcher, public Arm64Emitter {
 
   void EmitDispatcher();
 
-  protected:
-    void SpillSRA(FEXCore::Core::InternalThreadState *Thread, void *ucontext, uint32_t IgnoreMask) override;
+  uint16_t GetSRAGPRCount() const override {
+    return SRA64.size();
+  }
+
+  uint16_t GetSRAFPRCount() const override {
+    return SRAFPR.size();
+  }
+
+  void GetSRAGPRMapping(uint8_t Mapping[16]) const override {
+    for (size_t i = 0; i < SRA64.size(); ++i) {
+      Mapping[i] = SRA64[i].Idx();
+    }
+  }
+
+  void GetSRAFPRMapping(uint8_t Mapping[16]) const override {
+    for (size_t i = 0; i < SRAFPR.size(); ++i) {
+      Mapping[i] = SRAFPR[i].Idx();
+    }
+  }
 
   private:
     // Long division helpers

External/FEXCore/Source/Interface/Core/Dispatcher/Dispatcher.h

@@ -1,14 +1,13 @@
 #pragma once
 
 #include <FEXCore/Core/CPUBackend.h>
-#include "Interface/Core/ArchHelpers/MContext.h"
+#include <FEXCore/fextl/memory.h>
 
 #include <cstdint>
 #include <signal.h>
 #include <stddef.h>
 #include <stack>
 #include <tuple>
-#include <vector>
 
 namespace FEXCore {
 struct GuestSigAction;
@@ -20,7 +19,7 @@ struct InternalThreadState;
 }
 
 namespace FEXCore::Context {
-struct Context;
+class ContextImpl;
 }
 
 namespace FEXCore::CPU {
@@ -57,14 +56,6 @@ public:
   uint64_t Start{};
   uint64_t End{};
 
-  bool HandleGuestSignal(FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext, GuestSigAction *GuestAction, stack_t *GuestStack);
-  bool HandleSIGILL(FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext);
-  bool HandleSignalPause(FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext);
-
-  bool IsAddressInDispatcher(uint64_t Address) const {
-    return Address >= Start && Address < End;
-  }
-
   virtual void InitThreadPointers(FEXCore::Core::InternalThreadState *Thread) = 0;
 
   // These are across all arches for now
@@ -74,8 +65,8 @@ public:
   virtual size_t GenerateGDBPauseCheck(uint8_t *CodeBuffer, uint64_t GuestRIP) = 0;
   virtual size_t GenerateInterpreterTrampoline(uint8_t *CodeBuffer) = 0;
 
-  static std::unique_ptr<Dispatcher> CreateX86(FEXCore::Context::Context *CTX, const DispatcherConfig &Config);
-  static std::unique_ptr<Dispatcher> CreateArm64(FEXCore::Context::Context *CTX, const DispatcherConfig &Config);
+  static fextl::unique_ptr<Dispatcher> CreateX86(FEXCore::Context::ContextImpl *CTX, const DispatcherConfig &Config);
+  static fextl::unique_ptr<Dispatcher> CreateArm64(FEXCore::Context::ContextImpl *CTX, const DispatcherConfig &Config);
 
   virtual void ExecuteDispatch(FEXCore::Core::CpuStateFrame *Frame) {
     DispatchPtr(Frame);
@@ -85,85 +76,32 @@ public:
     CallbackPtr(Frame, RIP);
   }
 
+  virtual uint16_t GetSRAGPRCount() const {
+    return 0U;
+  }
+
+  virtual uint16_t GetSRAFPRCount() const {
+    return 0U;
+  }
+
+  virtual void GetSRAGPRMapping(uint8_t Mapping[16]) const {
+  }
+
+  virtual void GetSRAFPRMapping(uint8_t Mapping[16]) const {
+  }
+
+  const DispatcherConfig& GetConfig() const { return config; }
+
 protected:
-  Dispatcher(FEXCore::Context::Context *ctx, const DispatcherConfig &Config)
+  Dispatcher(FEXCore::Context::ContextImpl *ctx, const DispatcherConfig &Config)
     : CTX {ctx}
     , config {Config}
     {}
 
-  void RestoreFrame_x64(ArchHelpers::Context::ContextBackup* Context, FEXCore::Core::CpuStateFrame *Frame, void *ucontext);
-  void RestoreFrame_ia32(ArchHelpers::Context::ContextBackup* Context, FEXCore::Core::CpuStateFrame *Frame, void *ucontext);
-  void RestoreRTFrame_ia32(ArchHelpers::Context::ContextBackup* Context, FEXCore::Core::CpuStateFrame *Frame, void *ucontext);
-
-  const bool incomplete_guest_restorer_support = false;
-
-  ///< Setup the signal frame for x64.
-  uint64_t SetupFrame_x64(FEXCore::Core::InternalThreadState *Thread, ArchHelpers::Context::ContextBackup* ContextBackup, FEXCore::Core::CpuStateFrame *Frame,
-    int Signal, siginfo_t *HostSigInfo, void *ucontext,
-    GuestSigAction *GuestAction, stack_t *GuestStack,
-    uint64_t NewGuestSP, const uint32_t eflags);
-
-  ///< Setup the signal frame for a 32-bit signal without SA_SIGINFO.
-  uint64_t SetupFrame_ia32(ArchHelpers::Context::ContextBackup* ContextBackup, FEXCore::Core::CpuStateFrame *Frame,
-    int Signal, siginfo_t *HostSigInfo, void *ucontext,
-    GuestSigAction *GuestAction, stack_t *GuestStack,
-    uint64_t NewGuestSP, const uint32_t eflags);
-
-  ///< Setup the signal frame for a 32-bit signal with SA_SIGINFO.
-  uint64_t SetupRTFrame_ia32(ArchHelpers::Context::ContextBackup* ContextBackup, FEXCore::Core::CpuStateFrame *Frame,
-    int Signal, siginfo_t *HostSigInfo, void *ucontext,
-    GuestSigAction *GuestAction, stack_t *GuestStack,
-    uint64_t NewGuestSP, const uint32_t eflags);
-
-  ArchHelpers::Context::ContextBackup* StoreThreadState(FEXCore::Core::InternalThreadState *Thread, int Signal, void *ucontext);
-  enum class RestoreType {
-    TYPE_REALTIME, ///< Signal restore type is from a `realtime` signal.
-    TYPE_NONREALTIME, ///< Signal restore type is from a `non-realtime` signal.
-    TYPE_PAUSE, ///< Signal restore type is from a GDB pause event.
-  };
-
-  /*
-   * Signal frames on 32-bit architecture needs to match exactly how the kernel generates the frame.
-   * This is because large parts of the signal frame definition is part of the UAPI.
-   * This means that when FEX sets up the signal frame, it needs to match the UAPI stack setup.
-   *
-   * The two signal stack frame types below describe the two different 32-bit frame types.
-   */
-
-  // The 32-bit non-realtime signal frame.
-  // This frame type is used when the guest signal is used without the `SA_SIGINFO` flag.
-  struct SigFrame_i32 {
-    uint32_t pretcode; ///< sigreturn return branch point.
-    int32_t Signal; ///< The signal hit.
-    FEXCore::x86::sigcontext sc; ///< The signal context.
-    x86::_libc_fpstate fpstate_unused; ///< Unused fpstate. Retained for backwards compatibility.
-    uint32_t extramask[1]; ///< Upper 32-bits of the signal mask. Lower 32-bits is in the sigcontext.
-    char retcode[8]; ///< Unused but needs to be filled. GDB seemingly uses as a debug marker.
-    ///< FP state now follows after this.
-  };
-
-  // The 32-bit realtime signal frame.
-  // This frame type is used when the guest signal is used with the `SA_SIGINFO` flag.
-  struct RTSigFrame_i32 {
-    uint32_t pretcode; ///< sigreturn return branch point.
-    int32_t Signal; ///< The signal hit.
-    uint32_t pinfo; ///< Pointer to siginfo_t
-    uint32_t puc; ///< Pointer to ucontext_t
-    FEXCore::x86::siginfo_t info;
-    FEXCore::x86::ucontext_t uc;
-    char retcode[8]; ///< Unused but needs to be filled. GDB seemingly uses as a debug marker.
-    ///< FP state now follows after this.
-  };
-
-  void RestoreThreadState(FEXCore::Core::InternalThreadState *Thread, void *ucontext, RestoreType Type);
-  std::stack<uint64_t, std::vector<uint64_t>> SignalFrames;
-
-  virtual void SpillSRA(FEXCore::Core::InternalThreadState *Thread, void *ucontext, uint32_t IgnoreMask) {}
-
-  FEXCore::Context::Context *CTX;
+  FEXCore::Context::ContextImpl *CTX;
   DispatcherConfig config;
 
-  static void SleepThread(FEXCore::Context::Context *ctx, FEXCore::Core::CpuStateFrame *Frame);
+  static void SleepThread(FEXCore::Context::ContextImpl *ctx, FEXCore::Core::CpuStateFrame *Frame);
 
   static uint64_t GetCompileBlockPtr();
 

External/FEXCore/Source/Interface/Core/Dispatcher/X86Dispatcher.cpp

@@ -1,3 +1,4 @@
+#include "FEXCore/Utils/AllocatorHooks.h"
 #include "Interface/Core/LookupCache.h"
 
 #include "Interface/Core/Dispatcher/X86Dispatcher.h"
@@ -11,14 +12,14 @@
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/Utils/Allocator.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/string.h>
 #include <FEXHeaderUtils/Syscalls.h>
 
 #include <cmath>
 #include <memory>
 #include <stddef.h>
 #include <stdint.h>
-#include <sys/mman.h>
-#include <xbyak/xbyak.h>
 
 #define STATE_PTR(STATE_TYPE, FIELD) \
   [STATE + offsetof(FEXCore::Core::STATE_TYPE, FIELD)]
@@ -27,10 +28,10 @@ namespace FEXCore::CPU {
 static constexpr size_t MAX_DISPATCHER_CODE_SIZE = 4096;
 #define STATE r14
 
-X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherConfig &config)
+X86Dispatcher::X86Dispatcher(FEXCore::Context::ContextImpl *ctx, const DispatcherConfig &config)
   : Dispatcher(ctx, config)
   , Xbyak::CodeGenerator(MAX_DISPATCHER_CODE_SIZE,
-      FEXCore::Allocator::mmap(nullptr, MAX_DISPATCHER_CODE_SIZE, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0),
+      FEXCore::Allocator::VirtualAlloc(MAX_DISPATCHER_CODE_SIZE, true),
       nullptr) {
 
   LOGMAN_THROW_AA_FMT(!config.StaticRegisterAllocation, "X86 dispatcher does not support SRA");
@@ -169,36 +170,11 @@ X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherCon
     ret();
   }
 
-  constexpr bool SignalSafeCompile = true;
   // Block creation
   {
     L(NoBlock);
 
-    if (SignalSafeCompile) {
-      // When compiling code, mask all signals to reduce the chance of reentrant allocations
-      // RDI: SETMASK
-      // RSI: Pointer to mask value (uint64_t)
-      // RDX: Pointer to old mask value (uint64_t)
-      // R10: Size of mask, sizeof(uint64_t)
-      // RAX: Syscall
-
-      // Backup rdx
-      mov(r9, rdx);
-
-      mov(rdi, ~0ULL);
-      sub(rsp, 16);
-      mov(qword [rsp], rdi);
-      mov(qword [rsp + 8], rdi);
-
-      mov(rdi, SIG_SETMASK);
-      mov(rsi, rsp);
-      mov(rdx, rsp);
-      mov(r10, 8);
-      mov(rax, SYS_rt_sigprocmask);
-      syscall();
-
-      mov(rdx, r9);
-    }
+    inc(qword [STATE + offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount)]);
 
     // {rdi, rsi, rdx}
     mov(rdi, reinterpret_cast<uint64_t>(CTX));
@@ -207,24 +183,15 @@ X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherCon
 
     call(rax);
 
-    if (SignalSafeCompile) {
-      // Now restore the signal mask
-      // Living in the same location
-      // Backup rdx
-      mov(r9, rdx);
+    dec(qword [STATE + offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount)]);
 
-      mov(rdi, SIG_SETMASK);
-      mov(rsi, rsp);
-      mov(rdx, 0); // Don't care about result
-      mov(r10, 8);
-      mov(rax, SYS_rt_sigprocmask);
-      syscall();
+    Label AfterStore;
+    // Skip the deferred fault address if the refcount isn't zero
+    jne(AfterStore);
+    mov(rax, qword [STATE + offsetof(FEXCore::Core::CPUState, DeferredSignalFaultAddress)]);
+    mov(rax, qword [rax]);
 
-      // Bring stack back
-      add(rsp, 16);
-
-      mov(rdx, r9);
-    }
+    L(AfterStore);
 
     // rdx already contains RIP here
     jmp(LoopTop);
@@ -232,31 +199,7 @@ X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherCon
 
   {
     ExitFunctionLinkerAddress = getCurr<uint64_t>();
-    if (SignalSafeCompile) {
-      // When compiling code, mask all signals to reduce the chance of reentrant allocations
-      // RDI: SETMASK
-      // RSI: Pointer to mask value (uint64_t)
-      // RDX: Pointer to old mask value (uint64_t)
-      // R10: Size of mask, sizeof(uint64_t)
-      // RAX: Syscall
-
-      // Backup rax
-      mov(r9, rax);
-
-      mov(rdi, ~0ULL);
-      sub(rsp, 16);
-      mov(qword [rsp], rdi);
-      mov(qword [rsp + 8], rdi);
-
-      mov(rdi, SIG_SETMASK);
-      mov(rsi, rsp);
-      mov(rdx, rsp);
-      mov(r10, 8);
-      mov(rax, SYS_rt_sigprocmask);
-      syscall();
-
-      mov(rax, r9);
-    }
+    inc(qword [STATE + offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount)]);
 
     // {rdi, rsi}
     mov(rdi, STATE);
@@ -264,27 +207,17 @@ X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherCon
 
     call(qword STATE_PTR(CpuStateFrame, Pointers.Common.ExitFunctionLink));
 
-    if (SignalSafeCompile) {
-      // Now restore the signal mask
-      // Living in the same location
-      // Backup rax
-      mov(r9, rax);
+    dec(qword [STATE + offsetof(FEXCore::Core::CPUState, DeferredSignalRefCount)]);
 
-      mov(rdi, SIG_SETMASK);
-      mov(rsi, rsp);
-      mov(rdx, 0); // Don't care about result
-      mov(r10, 8);
-      mov(rax, SYS_rt_sigprocmask);
-      syscall();
+    Label AfterStore;
+    // Skip the deferred fault address if the refcount isn't zero
+    jne(AfterStore);
+    mov(rbx, qword [STATE + offsetof(FEXCore::Core::CPUState, DeferredSignalFaultAddress)]);
+    mov(qword [rbx], rbx);
 
-      // Bring stack back
-      add(rsp, 16);
+    L(AfterStore);
 
-      jmp(r9);
-    }
-    else {
-      jmp(rax);
-    }
+    jmp(rax);
   }
 
   {
@@ -407,7 +340,7 @@ X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherCon
   End = Start + getSize();
 
   if (CTX->Config.BlockJITNaming()) {
-    std::string Name = "Dispatch_" + std::to_string(FHU::Syscalls::gettid());
+    fextl::string Name = fextl::fmt::format("Dispatch_{}", FHU::Syscalls::gettid());
     CTX->Symbols.Register(reinterpret_cast<void*>(Start), End-Start, Name);
   }
   if (CTX->Config.GlobalJITNaming()) {
@@ -416,15 +349,13 @@ X86Dispatcher::X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherCon
 
 }
 
-// Used by GenerateGDBPauseCheck, GenerateInterpreterTrampoline
-static thread_local Xbyak::CodeGenerator emit(1, &emit); // actual emit target set with setNewBuffer
-
 size_t X86Dispatcher::GenerateGDBPauseCheck(uint8_t *CodeBuffer, uint64_t GuestRIP) {
   using namespace Xbyak;
   using namespace Xbyak::util;
 
+  Xbyak::CodeGenerator emit(1, &emit); // actual emit target set with setNewBuffer
   emit.setNewBuffer(CodeBuffer, MaxGDBPauseCheckSize);
-  
+
   Label RunBlock;
 
   // If we have a gdb server running then run in a less efficient mode that checks if we need to exit
@@ -433,7 +364,7 @@ size_t X86Dispatcher::GenerateGDBPauseCheck(uint8_t *CodeBuffer, uint64_t GuestR
   emit.mov(rax, reinterpret_cast<uint64_t>(CTX));
 
   // If the value == 0 then we don't need to stop
-  emit.cmp(dword [rax + (offsetof(FEXCore::Context::Context, Config.RunningMode))], 0);
+  emit.cmp(dword [rax + (offsetof(FEXCore::Context::ContextImpl, Config.RunningMode))], 0);
   emit.je(RunBlock);
   {
     // Make sure RIP is syncronized to the context
@@ -457,10 +388,11 @@ size_t X86Dispatcher::GenerateInterpreterTrampoline(uint8_t *CodeBuffer) {
   using namespace Xbyak;
   using namespace Xbyak::util;
 
+  Xbyak::CodeGenerator emit(1, &emit); // actual emit target set with setNewBuffer
   emit.setNewBuffer(CodeBuffer, MaxInterpreterTrampolineSize);
 
   Label InlineIRData;
-  
+
   emit.mov(rdi, STATE);
   emit.lea(rsi, ptr[rip + InlineIRData]);
   emit.call(qword STATE_PTR(CpuStateFrame, Pointers.Interpreter.FragmentExecuter));
@@ -475,7 +407,7 @@ size_t X86Dispatcher::GenerateInterpreterTrampoline(uint8_t *CodeBuffer) {
 }
 
 X86Dispatcher::~X86Dispatcher() {
-  FEXCore::Allocator::munmap(top_, MAX_DISPATCHER_CODE_SIZE);
+  FEXCore::Allocator::VirtualFree(top_, MAX_DISPATCHER_CODE_SIZE);
 }
 
 void X86Dispatcher::InitThreadPointers(FEXCore::Core::InternalThreadState *Thread) {
@@ -499,8 +431,8 @@ void X86Dispatcher::InitThreadPointers(FEXCore::Core::InternalThreadState *Threa
   }
 }
 
-std::unique_ptr<Dispatcher> Dispatcher::CreateX86(FEXCore::Context::Context *CTX, const DispatcherConfig &Config) {
-  return std::make_unique<X86Dispatcher>(CTX, Config);
+fextl::unique_ptr<Dispatcher> Dispatcher::CreateX86(FEXCore::Context::ContextImpl *CTX, const DispatcherConfig &Config) {
+  return fextl::make_unique<X86Dispatcher>(CTX, Config);
 }
 
 }

External/FEXCore/Source/Interface/Core/Dispatcher/X86Dispatcher.h

@@ -1,13 +1,24 @@
 #pragma once
 
+#include <FEXCore/fextl/list.h>
+#include <FEXCore/fextl/unordered_map.h>
+#include <FEXCore/fextl/unordered_set.h>
+
 #include "Interface/Core/Dispatcher/Dispatcher.h"
 
 #define XBYAK64
-#include <xbyak/xbyak.h>
+#define XBYAK_CUSTOM_ALLOC
+#define XBYAK_CUSTOM_MALLOC FEXCore::Allocator::malloc
+#define XBYAK_CUSTOM_FREE FEXCore::Allocator::free
+#define XBYAK_CUSTOM_SETS
+#define XBYAK_STD_UNORDERED_SET fextl::unordered_set
+#define XBYAK_STD_UNORDERED_MAP fextl::unordered_map
+#define XBYAK_STD_UNORDERED_MULTIMAP fextl::unordered_multimap
+#define XBYAK_STD_LIST fextl::list
+#define XBYAK_NO_EXCEPTION
 
-namespace FEXCore::Context {
-  struct Context;
-}
+#include <xbyak/xbyak.h>
+#include <xbyak/xbyak_util.h>
 
 namespace FEXCore::Core {
   struct InternalThreadState;
@@ -17,7 +28,7 @@ namespace FEXCore::CPU {
 
 class X86Dispatcher final : public Dispatcher, public Xbyak::CodeGenerator {
   public:
-    X86Dispatcher(FEXCore::Context::Context *ctx, const DispatcherConfig &config);
+    X86Dispatcher(FEXCore::Context::ContextImpl *ctx, const DispatcherConfig &config);
     void InitThreadPointers(FEXCore::Core::InternalThreadState *Thread) override;
     size_t GenerateGDBPauseCheck(uint8_t *CodeBuffer, uint64_t GuestRIP) override;
     size_t GenerateInterpreterTrampoline(uint8_t *CodeBuffer) override;

External/FEXCore/Source/Interface/Core/Frontend.cpp

@@ -7,6 +7,7 @@ $end_info$
 
 #include "Interface/Context/Context.h"
 #include "Interface/Core/Frontend.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 
 #include <array>
 #include <assert.h>
@@ -14,15 +15,13 @@ $end_info$
 #include <cstring>
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/HLE/SyscallHandler.h>
 #include <FEXCore/Utils/Allocator.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/Profiler.h>
 #include <FEXCore/Utils/Telemetry.h>
+#include <FEXCore/fextl/set.h>
 #include <FEXHeaderUtils/TypeDefines.h>
-#include <set>
-#include <sys/mman.h>
 
 namespace FEXCore::Frontend {
 #include "Interface/Core/VSyscall/VSyscall.inc"
@@ -79,7 +78,7 @@ static uint32_t MapVEXToReg(uint8_t vvvv, bool HasXMM) {
   }
 }
 
-Decoder::Decoder(FEXCore::Context::Context *ctx)
+Decoder::Decoder(FEXCore::Context::ContextImpl *ctx)
   : CTX {ctx}
   , OSABI { ctx->SyscallHandler ? ctx->SyscallHandler->GetOSABI() : FEXCore::HLE::SyscallOSABI::OS_UNKNOWN }
   , PoolObject {ctx->FrontendAllocator, sizeof(FEXCore::X86Tables::DecodedInst) * DefaultDecodedBufferSize} {
@@ -304,24 +303,24 @@ bool Decoder::NormalOp(FEXCore::X86Tables::X86InstInfo const *Info, uint16_t Op,
                                        (Options.w && CTX->Config.Is64BitMode);
   const bool HasNarrowingDisplacement = (FEXCore::X86Tables::DecodeFlags::GetOpAddr(DecodeInst->Flags, 0) & FEXCore::X86Tables::DecodeFlags::FLAG_OPERAND_SIZE_LAST) != 0;
 
-  bool HasXMMSrc = !!(Info->Flags & FEXCore::X86Tables::InstFlags::FLAGS_XMM_FLAGS) &&
-    !HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_SRC_GPR) &&
-    !HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_MMX_SRC);
-  bool HasXMMDst = !!(Info->Flags & FEXCore::X86Tables::InstFlags::FLAGS_XMM_FLAGS) &&
-    !HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_DST_GPR) &&
-    !HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_MMX_DST);
-  bool HasMMSrc = !!(Info->Flags & FEXCore::X86Tables::InstFlags::FLAGS_XMM_FLAGS) &&
-    !HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_SRC_GPR) &&
-    HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_MMX_SRC);
-  bool HasMMDst = !!(Info->Flags & FEXCore::X86Tables::InstFlags::FLAGS_XMM_FLAGS) &&
-    !HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_DST_GPR) &&
-    HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_MMX_DST);
+  const bool HasXMMFlags = (Info->Flags & InstFlags::FLAGS_XMM_FLAGS) != 0;
+  bool HasXMMSrc = HasXMMFlags &&
+    !HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_SRC_GPR) &&
+    !HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_MMX_SRC);
+  bool HasXMMDst = HasXMMFlags &&
+    !HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_DST_GPR) &&
+    !HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_MMX_DST);
+  bool HasMMSrc = HasXMMFlags &&
+    !HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_SRC_GPR) &&
+    HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_MMX_SRC);
+  bool HasMMDst = HasXMMFlags &&
+    !HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_DST_GPR) &&
+    HAS_XMM_SUBFLAG(Info->Flags, InstFlags::FLAGS_SF_MMX_DST);
 
   // Is ModRM present via explicit instruction encoded or REX?
   const bool HasMODRM = !!(Info->Flags & FEXCore::X86Tables::InstFlags::FLAGS_MODRM);
 
   const bool HasREX = !!(DecodeInst->Flags & DecodeFlags::FLAG_REX_PREFIX);
-  const bool HasHighXMM = HAS_XMM_SUBFLAG(Info->Flags, FEXCore::X86Tables::InstFlags::FLAGS_SF_HIGH_XMM_REG);
   const bool Has16BitAddressing = !CTX->Config.Is64BitMode &&
     DecodeInst->Flags & DecodeFlags::FLAG_ADDRESS_SIZE;
 
@@ -444,7 +443,7 @@ bool Decoder::NormalOp(FEXCore::X86Tables::X86InstInfo const *Info, uint16_t Op,
     // ADDITIONALLY:
     // If there is a REX prefix then that allows extended GPR usage
     CurrentDest->Type = DecodedOperand::OpType::GPR;
-    DecodeInst->Dest.Data.GPR.HighBits = (Is8BitDest && !HasREX && (Op & 0b111) >= 0b100) || HasHighXMM;
+    DecodeInst->Dest.Data.GPR.HighBits = (Is8BitDest && !HasREX && (Op & 0b111) >= 0b100);
     CurrentDest->Data.GPR.GPR = MapModRMToReg(DecodeInst->Flags & DecodeFlags::FLAG_REX_XGPR_B ? 1 : 0, Op & 0b111, Is8BitDest, HasREX, false, false);
 
     if (CurrentDest->Data.GPR.GPR == FEXCore::X86State::REG_INVALID)
@@ -472,7 +471,7 @@ bool Decoder::NormalOp(FEXCore::X86Tables::X86InstInfo const *Info, uint16_t Op,
 
     // Decode the GPR source first
     GPR.Type = DecodedOperand::OpType::GPR;
-    GPR.Data.GPR.HighBits = (GPR8Bit && ModRM.reg >= 0b100 && !HasREX) || HasHighXMM;
+    GPR.Data.GPR.HighBits = (GPR8Bit && ModRM.reg >= 0b100 && !HasREX);
     GPR.Data.GPR.GPR = MapModRMToReg(DecodeInst->Flags & DecodeFlags::FLAG_REX_XGPR_R ? 1 : 0, ModRM.reg, GPR8Bit, HasREX, HasXMMGPR, HasMMGPR);
 
     if (GPR.Data.GPR.GPR == FEXCore::X86State::REG_INVALID)
@@ -482,7 +481,7 @@ bool Decoder::NormalOp(FEXCore::X86Tables::X86InstInfo const *Info, uint16_t Op,
     // ModRM.Mod != 0b11 == Register-direct addressing
     if (ModRM.mod == 0b11) {
       NonGPR.Type = DecodedOperand::OpType::GPR;
-      NonGPR.Data.GPR.HighBits = (NonGPR8Bit && ModRM.rm >= 0b100 && !HasREX) || HasHighXMM;
+      NonGPR.Data.GPR.HighBits = (NonGPR8Bit && ModRM.rm >= 0b100 && !HasREX);
       NonGPR.Data.GPR.GPR = MapModRMToReg(DecodeInst->Flags & DecodeFlags::FLAG_REX_XGPR_B ? 1 : 0, ModRM.rm, NonGPR8Bit, HasREX, HasXMMNonGPR, HasMMNonGPR);
       if (NonGPR.Data.GPR.GPR == FEXCore::X86State::REG_INVALID)
         return false;
@@ -503,7 +502,12 @@ bool Decoder::NormalOp(FEXCore::X86Tables::X86InstInfo const *Info, uint16_t Op,
   if ((Info->Flags & FEXCore::X86Tables::InstFlags::FLAGS_VEX_1ST_SRC) != 0) {
     DecodeInst->Src[CurrentSrc].Type = DecodedOperand::OpType::GPR;
     DecodeInst->Src[CurrentSrc].Data.GPR.HighBits = false;
-    DecodeInst->Src[CurrentSrc].Data.GPR.GPR = MapVEXToReg(Options.vvvv, HasXMMSrc);
+
+    // If we have XMM flags at all, then SRC 1 cannot be a GPR. The only case where
+    // this is possible is with BMI1 and BMI2 instructions (which are all GPR-based
+    // and don't use XMM flags)
+    DecodeInst->Src[CurrentSrc].Data.GPR.GPR = MapVEXToReg(Options.vvvv, HasXMMFlags);
+
     ++CurrentSrc;
   }
 
@@ -1109,7 +1113,7 @@ void Decoder::DecodeInstructionsAtEntry(uint8_t const* _InstStream, uint64_t PC,
 
   uint64_t CurrentCodePage = PC & FHU::FEX_PAGE_MASK;
 
-  std::set<uint64_t> CodePages = { CurrentCodePage };
+  fextl::set<uint64_t> CodePages = { CurrentCodePage };
 
   AddContainedCodePage(PC, CurrentCodePage, FHU::FEX_PAGE_SIZE);
 

External/FEXCore/Source/Interface/Core/Frontend.h

@@ -1,17 +1,18 @@
 #pragma once
 
-#include <FEXCore/Debug/X86Tables.h>
+#include "Interface/Core/X86Tables/X86Tables.h"
+
 #include <FEXCore/HLE/SyscallHandler.h>
 #include <FEXCore/Utils/Telemetry.h>
+#include <FEXCore/fextl/set.h>
+#include <FEXCore/fextl/vector.h>
 
 #include <array>
 #include <cstdint>
-#include <set>
 #include <stddef.h>
-#include <vector>
 
 namespace FEXCore::Context {
-struct Context;
+class ContextImpl;
 }
 
 namespace FEXCore::Frontend {
@@ -25,11 +26,11 @@ public:
     bool HasInvalidInstruction{};
   };
 
-  Decoder(FEXCore::Context::Context *ctx);
+  Decoder(FEXCore::Context::ContextImpl *ctx);
   ~Decoder();
   void DecodeInstructionsAtEntry(uint8_t const* InstStream, uint64_t PC, std::function<void(uint64_t BlockEntry, uint64_t Start, uint64_t Length)> AddContainedCodePage);
 
-  std::vector<DecodedBlocks> const *GetDecodedBlocks() const {
+  fextl::vector<DecodedBlocks> const *GetDecodedBlocks() const {
     return &Blocks;
   }
 
@@ -37,7 +38,7 @@ public:
   uint64_t DecodedMaxAddress {~0ULL};
 
   void SetSectionMaxAddress(uint64_t v) { SectionMaxAddress = v; }
-  void SetExternalBranches(std::set<uint64_t> *v) { ExternalBranches = v; }
+  void SetExternalBranches(fextl::set<uint64_t> *v) { ExternalBranches = v; }
 
   void DelayedDisownBuffer() {
     PoolObject.DelayedDisownBuffer();
@@ -52,7 +53,7 @@ private:
     bool L;       // VEX.L bit (if set then 256 bit operation, if unset then scalar or 128-bit operation)
   };
 
-  FEXCore::Context::Context *CTX;
+  FEXCore::Context::ContextImpl *CTX;
   const FEXCore::HLE::SyscallOSABI OSABI{};
 
   bool DecodeInstruction(uint64_t PC);
@@ -89,10 +90,10 @@ private:
   uint64_t SymbolMinAddress {~0ULL};
   uint64_t SectionMaxAddress {~0ULL};
 
-  std::vector<DecodedBlocks> Blocks;
-  std::set<uint64_t> BlocksToDecode;
-  std::set<uint64_t> HasBlocks;
-  std::set<uint64_t> *ExternalBranches {nullptr};
+  fextl::vector<DecodedBlocks> Blocks;
+  fextl::set<uint64_t> BlocksToDecode;
+  fextl::set<uint64_t> HasBlocks;
+  fextl::set<uint64_t> *ExternalBranches {nullptr};
 
   // ModRM rm decoding
   using DecodeModRMPtr = void (FEXCore::Frontend::Decoder::*)(X86Tables::DecodedOperand *Operand, X86Tables::ModRMDecoded ModRM);

External/FEXCore/Source/Interface/Core/GdbServer.cpp

@@ -8,11 +8,8 @@ $end_info$
 #include <cstdlib>
 #include <cstdio>
 #include <iomanip>
-#include <sstream>
-#include <string>
 #include <memory>
 #include <optional>
-#include <vector>
 #include "Common/SoftFloat.h"
 #include "Common/StringUtils.h"
 #include "Interface/Context/Context.h"
@@ -27,39 +24,45 @@ $end_info$
 #include <FEXCore/HLE/Linux/ThreadManagement.h>
 #include <FEXCore/HLE/SyscallHandler.h>
 #include <FEXCore/Utils/CompilerDefs.h>
+#include <FEXCore/Utils/FileLoading.h>
 #include <FEXCore/Utils/NetStream.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/Threads.h>
+#include <FEXCore/fextl/fmt.h>
+#include <FEXCore/fextl/map.h>
+#include <FEXCore/fextl/sstream.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/vector.h>
 
 #include <atomic>
 #include <cstring>
+#ifndef _WIN32
 #include <elf.h>
+#include <netdb.h>
+#include <sys/socket.h>
+#endif
 #include <errno.h>
 #include <fcntl.h>
-#include <fstream>
 #include <fmt/format.h>
-#include <netdb.h>
 #include <signal.h>
 #include <stddef.h>
 #include <string_view>
-#include <sys/socket.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <utility>
-#include <vector>
 
 #include "GdbServer.h"
 
 namespace FEXCore
 {
-
+#ifndef _WIN32
 void GdbServer::Break(int signal) {
   std::lock_guard lk(sendMutex);
   if (!CommsStream) {
     return;
   }
 
-  const auto str = fmt::format("S{:02x}", signal);
+  const fextl::string str = fextl::fmt::format("S{:02x}", signal);
   SendPacket(*CommsStream, str);
 }
 
@@ -68,11 +71,11 @@ void GdbServer::WaitForThreadWakeup() {
   ThreadBreakEvent.Wait();
 }
 
-GdbServer::GdbServer(FEXCore::Context::Context *ctx) : CTX(ctx) {
+GdbServer::GdbServer(FEXCore::Context::ContextImpl *ctx) : CTX(ctx) {
   // Pass all signals by default
   std::fill(PassSignals.begin(), PassSignals.end(), true);
 
-  Context::SetExitHandler(ctx, [this](uint64_t ThreadId, FEXCore::Context::ExitReason ExitReason) {
+  ctx->SetExitHandler([this](uint64_t ThreadId, FEXCore::Context::ExitReason ExitReason) {
     if (ExitReason == FEXCore::Context::ExitReason::EXIT_DEBUG) {
       this->Break(SIGTRAP);
     }
@@ -101,7 +104,7 @@ GdbServer::GdbServer(FEXCore::Context::Context *ctx) : CTX(ctx) {
   StartThread();
 }
 
-static int calculateChecksum(const std::string &packet) {
+static int calculateChecksum(const fextl::string &packet) {
   unsigned char checksum = 0;
   for (const char &c : packet) {
     checksum += c;
@@ -109,8 +112,8 @@ static int calculateChecksum(const std::string &packet) {
   return checksum;
 }
 
-static std::string hexstring(std::istringstream &ss, int delm) {
-  std::string ret;
+static fextl::string hexstring(fextl::istringstream &ss, int delm) {
+  fextl::string ret;
 
   char hexString[3] = {0, 0, 0};
   while (ss.peek() != delm) {
@@ -125,8 +128,8 @@ static std::string hexstring(std::istringstream &ss, int delm) {
   return ret;
 }
 
-static std::string encodeHex(const unsigned char *data, size_t length) {
-  std::ostringstream ss;
+static fextl::string encodeHex(const unsigned char *data, size_t length) {
+  fextl::ostringstream ss;
 
   for (size_t i=0; i < length; i++) {
     ss << std::setfill('0') << std::setw(2) << std::hex << int(data[i]);
@@ -134,26 +137,19 @@ static std::string encodeHex(const unsigned char *data, size_t length) {
   return ss.str();
 }
 
-static std::string getThreadName(uint32_t ThreadID) {
-  const auto ThreadFile = fmt::format("/proc/{}/task/{}/comm", getpid(), ThreadID);
-  std::fstream fs(ThreadFile, std::fstream::in | std::fstream::binary);
-
-  if (fs.is_open()) {
-    std::string ThreadName;
-    fs >> ThreadName;
-    fs.close();
-    return ThreadName;
-  }
-
-  return "<No Name>";
+static fextl::string getThreadName(uint32_t ThreadID) {
+  const auto ThreadFile = fextl::fmt::format("/proc/{}/task/{}/comm", getpid(), ThreadID);
+  fextl::string ThreadName {"<No Name>"};
+  FEXCore::FileLoading::LoadFile(ThreadName, ThreadFile);
+  return ThreadName;
 }
 
 // Packet parser
 // Takes a serial stream and reads a single packet
 // Un-escapes chars, checks the checksum and request a retransmit if it fails.
 // Once the checksum is validated, it acknowledges and returns the packet in a string
-std::string GdbServer::ReadPacket(std::iostream &stream) {
-  std::string packet{};
+fextl::string GdbServer::ReadPacket(std::iostream &stream) {
+  fextl::string packet{};
 
   // The GDB "Remote Serial Protocal" was originally 7bit clean for use on serial ports.
   // Binary data is useally hex encoded. However some later extentions just put
@@ -172,7 +168,7 @@ std::string GdbServer::ReadPacket(std::iostream &stream) {
           LogMan::Msg::EFmt("Dropping unexpected data: \"{}\"", packet);
 
         // clear any existing data, must have been a mistake.
-        packet = std::string();
+        packet = fextl::string();
         break;
       case '}': // escape char
       {
@@ -203,8 +199,8 @@ std::string GdbServer::ReadPacket(std::iostream &stream) {
   return "";
 }
 
-static std::string escapePacket(const std::string& packet) {
-  std::ostringstream ss;
+static fextl::string escapePacket(const fextl::string& packet) {
+  fextl::ostringstream ss;
 
   for(const auto &c : packet) {
     switch (c) {
@@ -225,9 +221,9 @@ static std::string escapePacket(const std::string& packet) {
   return ss.str();
 }
 
-void GdbServer::SendPacket(std::ostream &stream, const std::string& packet) {
+void GdbServer::SendPacket(std::ostream &stream, const fextl::string& packet) {
   const auto escaped = escapePacket(packet);
-  const auto str = fmt::format("${}#{:02x}", escaped, calculateChecksum(escaped));
+  const auto str = fextl::fmt::format("${}#{:02x}", escaped, calculateChecksum(escaped));
 
   stream << str << std::flush;
 }
@@ -263,7 +259,7 @@ struct FEX_PACKED GDBContextDefinition {
   uint32_t mxcsr;
 };
 
-std::string GdbServer::readRegs() {
+fextl::string GdbServer::readRegs() {
   GDBContextDefinition GDB{};
   FEXCore::Core::CPUState state{};
 
@@ -311,11 +307,11 @@ std::string GdbServer::readRegs() {
   return encodeHex((unsigned char *)&GDB, sizeof(GDBContextDefinition));
 }
 
-GdbServer::HandledPacketType GdbServer::readReg(const std::string& packet) {
-	size_t addr;
-	auto ss = std::istringstream(packet);
-	ss.get(); // Drop first letter
-	ss >> std::hex >> addr;
+GdbServer::HandledPacketType GdbServer::readReg(const fextl::string& packet) {
+  size_t addr;
+  auto ss = fextl::istringstream(packet);
+  ss.get(); // Drop first letter
+  ss >> std::hex >> addr;
 
   FEXCore::Core::CPUState state{};
 
@@ -395,8 +391,8 @@ GdbServer::HandledPacketType GdbServer::readReg(const std::string& packet) {
   return {"E00", HandledPacketType::TYPE_ACK};
 }
 
-std::string buildTargetXML() {
-  std::ostringstream xml;
+fextl::string buildTargetXML() {
+  fextl::ostringstream xml;
 
   xml << "<?xml version='1.0'?>\n";
   xml << "<!DOCTYPE target SYSTEM 'gdb-target.dtd'>\n";
@@ -448,7 +444,7 @@ std::string buildTargetXML() {
 
       // x87 stack
       for (int i=0; i < 8; i++) {
-          reg("st" + std::to_string(i), "i387_ext", 80);
+        reg(fextl::fmt::format("st{}", i), "i387_ext", 80);
       }
 
       // x87 control
@@ -484,7 +480,7 @@ std::string buildTargetXML() {
 
       // SSE regs
       for (size_t i = 0; i < Core::CPUState::NUM_XMMS; i++) {
-          reg("xmm" + std::to_string(i), "vec128", 128);
+          reg(fextl::fmt::format("xmm{}", i), "vec128", 128);
       }
 
       reg("mxcsr", "int", 32);
@@ -520,8 +516,8 @@ std::string buildTargetXML() {
   return xml.str();
 }
 
-std::string buildOSData() {
-  std::ostringstream xml;
+fextl::string buildOSData() {
+  fextl::ostringstream xml;
 
   xml << "<?xml version='1.0'?>\n";
 
@@ -541,24 +537,27 @@ void GdbServer::buildLibraryMap() {
     return;
   }
 
-  std::ostringstream xml;
+  fextl::ostringstream xml;
 
-  std::fstream fs("/proc/self/maps", std::fstream::in | std::fstream::binary);
-  std::string Line;
+  fextl::string MapsFile;
+  FEXCore::FileLoading::LoadFile(MapsFile, "/proc/self/maps");
+  fextl::istringstream MapsStream(MapsFile);
+
+  fextl::string Line;
 
   struct FileData {
     uint64_t Begin;
   };
 
-  std::map<std::string, std::vector<FileData>> SegmentMaps;
+  fextl::map<fextl::string, fextl::vector<FileData>> SegmentMaps;
 
   // 7ff5dd6d2000-7ff5dd6d3000 rw-p 0000a000 103:0b 1881447                   /usr/lib/x86_64-linux-gnu/libnss_compat.so.2
-  std::string const &RuntimeExecutable = Filename();
-  while (std::getline(fs, Line)) {
-    auto ss = std::istringstream(Line);
-    std::string Tmp;
-    std::string Begin;
-    std::string Name;
+  fextl::string const &RuntimeExecutable = Filename();
+  while (std::getline(MapsStream, Line)) {
+    auto ss = fextl::istringstream(Line);
+    fextl::string Tmp;
+    fextl::string Begin;
+    fextl::string Name;
     std::getline(ss, Begin, '-');
     std::getline(ss, Tmp, ' '); // End
     std::getline(ss, Tmp, ' '); // Perm
@@ -609,18 +608,18 @@ void GdbServer::buildLibraryMap() {
   LibraryMapChanged = false;
 }
 
-GdbServer::HandledPacketType GdbServer::handleXfer(const std::string &packet) {
-  std::string object;
-  std::string rw;
-  std::string annex;
+GdbServer::HandledPacketType GdbServer::handleXfer(const fextl::string &packet) {
+  fextl::string object;
+  fextl::string rw;
+  fextl::string annex;
   int annex_pid;
   int offset;
   int length;
 
   // Parse Xfer message
   {
-    auto ss = std::istringstream(packet);
-    std::string expectXfer;
+    auto ss = fextl::istringstream(packet);
+    fextl::string expectXfer;
     char expectComma;
 
     std::getline(ss, expectXfer, ':');
@@ -631,7 +630,7 @@ GdbServer::HandledPacketType GdbServer::handleXfer(const std::string &packet) {
       annex_pid = getpid();
     }
     else {
-      auto ss_pid = std::istringstream(annex);
+      auto ss_pid = fextl::istringstream(annex);
       ss_pid >> std::hex >> annex_pid;
     }
     ss >> std::hex >> offset;
@@ -644,7 +643,7 @@ GdbServer::HandledPacketType GdbServer::handleXfer(const std::string &packet) {
   }
 
   // Lambda to correctly encode any reply
-  auto encode = [&](std::string data) -> std::string {
+  auto encode = [&](fextl::string data) -> fextl::string {
     if (offset == data.size())
       return "l";
     if (offset >= data.size())
@@ -674,7 +673,7 @@ GdbServer::HandledPacketType GdbServer::handleXfer(const std::string &packet) {
       auto Threads = CTX->GetThreads();
 
       ThreadString.clear();
-      std::ostringstream ss;
+      fextl::ostringstream ss;
       ss << "<?xml version=\"1.0\"?>\n";
       ss << "<threads>\n";
       for (auto &Thread : *Threads) {
@@ -710,7 +709,7 @@ GdbServer::HandledPacketType GdbServer::handleXfer(const std::string &packet) {
     auto CodeLoader = CTX->SyscallHandler->GetCodeLoader();
     uint64_t auxv_ptr, auxv_size;
     CodeLoader->GetAuxv(auxv_ptr, auxv_size);
-    std::string data;
+    fextl::string data;
     if (CTX->Config.Is64BitMode) {
       data.resize(auxv_size);
       memcpy(data.data(), reinterpret_cast<void*>(auxv_ptr), data.size());
@@ -736,11 +735,14 @@ GdbServer::HandledPacketType GdbServer::handleXfer(const std::string &packet) {
 
 static size_t CheckMemMapping(uint64_t Address, size_t Size) {
   uint64_t AddressEnd = Address + Size;
-  std::fstream fs("/proc/self/maps", std::fstream::in | std::fstream::binary);
-  std::string Line;
+  fextl::string MapsFile;
+  FEXCore::FileLoading::LoadFile(MapsFile, "/proc/self/maps");
+  fextl::istringstream MapsStream(MapsFile);
 
-  while (std::getline(fs, Line)) {
-    if (fs.eof()) break;
+  fextl::string Line;
+
+  while (std::getline(MapsStream, Line)) {
+    if (MapsStream.eof()) break;
     uint64_t Begin, End;
     char r,w,x,p;
     if (sscanf(Line.c_str(), "%lx-%lx %c%c%c%c", &Begin, &End, &r, &w, &x, &p) == 6) {
@@ -761,17 +763,17 @@ static size_t CheckMemMapping(uint64_t Address, size_t Size) {
 GdbServer::HandledPacketType GdbServer::handleProgramOffsets() {
   auto CodeLoader = CTX->SyscallHandler->GetCodeLoader();
   uint64_t BaseOffset = CodeLoader->GetBaseOffset();
-  auto str = fmt::format("Text={:x};Data={:x};Bss={:x}", BaseOffset, BaseOffset, BaseOffset);
+  fextl::string str = fextl::fmt::format("Text={:x};Data={:x};Bss={:x}", BaseOffset, BaseOffset, BaseOffset);
   return {std::move(str), HandledPacketType::TYPE_ACK};
 }
 
-GdbServer::HandledPacketType GdbServer::handleMemory(const std::string &packet) {
+GdbServer::HandledPacketType GdbServer::handleMemory(const fextl::string &packet) {
   bool write;
   size_t addr;
   size_t length;
-  std::string data;
+  fextl::string data;
 
-  auto ss = std::istringstream(packet);
+  auto ss = fextl::istringstream(packet);
   write = ss.get() == 'M';
   ss >> std::hex >> addr;
   ss.get(); // discard comma
@@ -806,22 +808,22 @@ GdbServer::HandledPacketType GdbServer::handleMemory(const std::string &packet)
 }
 
 
-GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
+GdbServer::HandledPacketType GdbServer::handleQuery(const fextl::string &packet) {
   const auto match = [&](const char *str) -> bool { return packet.rfind(str, 0) == 0; };
-  const auto MatchStr = [](const std::string &Str, const char *str) -> bool { return Str.rfind(str, 0) == 0; };
+  const auto MatchStr = [](const fextl::string &Str, const char *str) -> bool { return Str.rfind(str, 0) == 0; };
 
-  const auto split = [](const std::string &Str, char deliminator) -> std::vector<std::string> {
-    std::vector<std::string> Elements;
-    std::istringstream Input(Str);
-    for (std::string line;
+  const auto split = [](const fextl::string &Str, char deliminator) -> fextl::vector<fextl::string> {
+    fextl::vector<fextl::string> Elements;
+    fextl::istringstream Input(Str);
+    for (fextl::string line;
          std::getline(Input, line);
          Elements.emplace_back(line));
     return Elements;
   };
 
   if (match("QNonStop:")) {
-    auto ss = std::istringstream(packet);
-    ss.seekg(std::string("QNonStop:").size());
+    auto ss = fextl::istringstream(packet);
+    ss.seekg(fextl::string("QNonStop:").size());
     ss.get(); // discard colon
     ss >> NonStopMode;
     return {"OK", HandledPacketType::TYPE_ACK};
@@ -832,7 +834,7 @@ GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
 
     // For feature documentation
     // https://sourceware.org/gdb/current/onlinedocs/gdb/General-Query-Packets.html#qSupported
-    std::string SupportedFeatures{};
+    fextl::string SupportedFeatures{};
 
     // Required features
     SupportedFeatures += "PacketSize=32768;";
@@ -901,7 +903,7 @@ GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
   if (match("qfThreadInfo")) {
     auto Threads = CTX->GetThreads();
 
-    std::ostringstream ss;
+    fextl::ostringstream ss;
     ss << "m";
     for (size_t i = 0; i < Threads->size(); ++i) {
       auto Thread = Threads->at(i);
@@ -916,8 +918,8 @@ GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
     return {"l", HandledPacketType::TYPE_ACK};
   }
   if (match("qThreadExtraInfo")) {
-    auto ss = std::istringstream(packet);
-    ss.seekg(std::string("qThreadExtraInfo").size());
+    auto ss = fextl::istringstream(packet);
+    ss.seekg(fextl::string("qThreadExtraInfo").size());
     ss.get(); // discard comma
     uint32_t ThreadID;
     ss >> std::hex >> ThreadID;
@@ -926,7 +928,7 @@ GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
   }
   if (match("qC")) {
     // Returns the current Thread ID
-    std::ostringstream ss;
+    fextl::ostringstream ss;
     ss << "m" <<  std::hex << CTX->ParentThread->ThreadManager.TID;
     return {ss.str(), HandledPacketType::TYPE_ACK};
   }
@@ -935,10 +937,10 @@ GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
     return {"OK", HandledPacketType::TYPE_ACK};
   }
   if (match("qSymbol")) {
-    auto ss = std::istringstream(packet);
-    ss.seekg(std::string("qSymbol").size());
+    auto ss = fextl::istringstream(packet);
+    ss.seekg(fextl::string("qSymbol").size());
     ss.get(); // discard colon
-    std::string Symbol_Val, Symbol_name;
+    fextl::string Symbol_Val, Symbol_name;
     std::getline(ss, Symbol_Val, ':');
     std::getline(ss, Symbol_name, ':');
 
@@ -955,13 +957,13 @@ GdbServer::HandledPacketType GdbServer::handleQuery(const std::string &packet) {
     std::fill(PassSignals.begin(), PassSignals.end(), false);
 
     // eg: QPassSignals:e;10;14;17;1a;1b;1c;21;24;25;2c;4c;97;
-    auto ss = std::istringstream(packet);
-    ss.seekg(std::string("QPassSignals").size());
+    auto ss = fextl::istringstream(packet);
+    ss.seekg(fextl::string("QPassSignals").size());
     ss.get(); // discard colon
 
     // We now have a semi-colon deliminated list of signals to pass to the guest process
-    for (std::string tmp; std::getline(ss, tmp, ';'); ) {
-      uint32_t Signal = std::stoi(tmp, nullptr, 16);
+    for (fextl::string tmp; std::getline(ss, tmp, ';'); ) {
+      uint32_t Signal = std::stoi(tmp.c_str(), nullptr, 16);
       if (Signal < SignalDelegator::MAX_SIGNALS) {
         PassSignals[Signal] = true;
       }
@@ -984,7 +986,7 @@ GdbServer::HandledPacketType GdbServer::ThreadAction(char action, uint32_t tid)
     case 's': {
       CTX->Step();
       SendPacketPair({"OK", HandledPacketType::TYPE_ACK});
-      auto str = fmt::format("T05thread:{:02x};", getpid());
+      fextl::string str = fextl::fmt::format("T05thread:{:02x};", getpid());
       if (LibraryMapChanged) {
         // If libraries have changed then let gdb know
         str += "library:1;";
@@ -1002,26 +1004,26 @@ GdbServer::HandledPacketType GdbServer::ThreadAction(char action, uint32_t tid)
   }
 }
 
-GdbServer::HandledPacketType GdbServer::handleV(const std::string& packet) {
-  const auto match = [&](const std::string& str) -> std::optional<std::istringstream> {
+GdbServer::HandledPacketType GdbServer::handleV(const fextl::string& packet) {
+  const auto match = [&](const fextl::string& str) -> std::optional<fextl::istringstream> {
     if (packet.rfind(str, 0) == 0) {
-      auto ss = std::istringstream(packet);
+      auto ss = fextl::istringstream(packet);
       ss.seekg(str.size());
       return ss;
     }
     return std::nullopt;
   };
 
-  const auto F       = [](int result) { return fmt::format("F{:x}", result); };
-  const auto F_error = [] { return fmt::format("F-1,{:x}", errno); };
-  const auto F_data  = [](int result, const std::string& data) {
+  const auto F       = [](int result) -> fextl::string { return fextl::fmt::format("F{:x}", result); };
+  const auto F_error = []() -> fextl::string { return fextl::fmt::format("F-1,{:x}", errno); };
+  const auto F_data  = [](int result, const fextl::string& data) -> fextl::string {
     // Binary encoded data is raw appended to the end
-    return fmt::format("F{:#x};", result) + data;
+    return fextl::fmt::format("F{:#x};", result) + data;
   };
 
-  std::optional<std::istringstream> ss;
+  std::optional<fextl::istringstream> ss;
   if((ss = match("vFile:open:"))) {
-    std::string filename;
+    fextl::string filename;
     int flags;
     int mode;
 
@@ -1053,7 +1055,7 @@ GdbServer::HandledPacketType GdbServer::handleV(const std::string& packet) {
     ss->get(); // discard comma
     *ss >> std::hex >> offset;
 
-    std::string data(count, '\0');
+    fextl::string data(count, '\0');
     if (lseek(fd, offset, SEEK_SET) < 0) {
       return {F_error(), HandledPacketType::TYPE_ACK};
     }
@@ -1093,14 +1095,14 @@ GdbServer::HandledPacketType GdbServer::handleV(const std::string& packet) {
   return {"", HandledPacketType::TYPE_ACK};
 }
 
-GdbServer::HandledPacketType GdbServer::handleThreadOp(const std::string &packet) {
+GdbServer::HandledPacketType GdbServer::handleThreadOp(const fextl::string &packet) {
   const auto match = [&](const char *str) -> bool { return packet.rfind(str, 0) == 0; };
 
   if (match("Hc")) {
     // Sets thread to this ID for stepping
     // This is deprecated and vCont should be used instead
-    auto ss = std::istringstream(packet);
-    ss.seekg(std::string("Hc").size());
+    auto ss = fextl::istringstream(packet);
+    ss.seekg(fextl::string("Hc").size());
     ss >> std::hex >> CurrentDebuggingThread;
 
     CTX->Pause();
@@ -1109,7 +1111,7 @@ GdbServer::HandledPacketType GdbServer::handleThreadOp(const std::string &packet
 
   if (match("Hg")) {
     // Sets thread for "other" operations
-    auto ss = std::istringstream(packet);
+    auto ss = fextl::istringstream(packet);
     ss.seekg(std::string_view("Hg").size());
     ss >> std::hex >> CurrentDebuggingThread;
 
@@ -1121,8 +1123,8 @@ GdbServer::HandledPacketType GdbServer::handleThreadOp(const std::string &packet
   return {"", HandledPacketType::TYPE_UNKNOWN};
 }
 
-GdbServer::HandledPacketType GdbServer::handleBreakpoint(const std::string &packet) {
-  auto ss = std::istringstream(packet);
+GdbServer::HandledPacketType GdbServer::handleBreakpoint(const fextl::string &packet) {
+  auto ss = fextl::istringstream(packet);
 
   // Don't do anything with set breakpoints yet
   [[maybe_unused]] bool Set{};
@@ -1138,13 +1140,13 @@ GdbServer::HandledPacketType GdbServer::handleBreakpoint(const std::string &pack
   return {"OK", HandledPacketType::TYPE_ACK};
 }
 
-GdbServer::HandledPacketType GdbServer::ProcessPacket(const std::string &packet) {
+GdbServer::HandledPacketType GdbServer::ProcessPacket(const fextl::string &packet) {
   switch (packet[0]) {
     case '?': {
       // Indicates the reason that the thread has stopped
       // Behaviour changes if the target is in non-stop mode
       // Binja doesn't support S response here
-      auto str = fmt::format("T00thread:{:x};", getpid());
+      fextl::string str = fextl::fmt::format("T00thread:{:x};", getpid());
       return {std::move(str), HandledPacketType::TYPE_ACK};
     }
     case 'c':
@@ -1225,7 +1227,7 @@ void GdbServer::GdbServerLoop() {
     while ((c = CommsStream->get()) >= 0 ) {
         switch (c) {
         case '$': {
-            std::string packet = ReadPacket(*CommsStream);
+            auto packet = ReadPacket(*CommsStream);
             response = ProcessPacket(packet);
             SendPacketPair(response);
             if (response.TypeResponse == HandledPacketType::TYPE_UNKNOWN) {
@@ -1245,7 +1247,7 @@ void GdbServer::GdbServerLoop() {
             break;
         case '\x03': { // ASCII EOT
             CTX->Pause();
-            auto str = fmt::format("T02thread:{:02x};", getpid());
+            fextl::string str = fextl::fmt::format("T02thread:{:02x};", getpid());
             if (LibraryMapChanged) {
               // If libraries have changed then let gdb know
               str += "library:1;";
@@ -1279,7 +1281,8 @@ void GdbServer::StartThread() {
 }
 
 void GdbServer::OpenListenSocket() {
-  // open socket
+  // getaddrinfo allocates memory that can't be removed.
+  FEXCore::Allocator::YesIKnowImNotSupposedToUseTheGlibcAllocator glibc;
   struct addrinfo hints, *res;
 
   memset(&hints, 0, sizeof(hints));
@@ -1308,9 +1311,11 @@ void GdbServer::OpenListenSocket() {
   }
 
   listen(ListenSocket, 1);
+
+  freeaddrinfo(res);
 }
 
-std::unique_ptr<std::iostream> GdbServer::OpenSocket() {
+fextl::unique_ptr<std::iostream> GdbServer::OpenSocket() {
   // Block until a connection arrives
   struct sockaddr_storage their_addr{};
   socklen_t addr_size{};
@@ -1318,7 +1323,8 @@ std::unique_ptr<std::iostream> GdbServer::OpenSocket() {
   LogMan::Msg::IFmt("GdbServer, waiting for connection on localhost:8086");
   int new_fd = accept(ListenSocket, (struct sockaddr *)&their_addr, &addr_size);
 
-  return std::make_unique<FEXCore::Utils::NetStream>(new_fd);
+  return fextl::make_unique<FEXCore::Utils::NetStream>(new_fd);
 }
 
+#endif
 } // namespace FEXCore

External/FEXCore/Source/Interface/Core/GdbServer.h

@@ -8,23 +8,24 @@ $end_info$
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Utils/Event.h>
 #include <FEXCore/Utils/Threads.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/string.h>
 
 #include <atomic>
 #include <istream>
 #include <memory>
 #include <mutex>
 #include <stdint.h>
-#include <string>
 
 namespace FEXCore {
 
 namespace Context {
-  struct Context;
+  class ContextImpl;
 }
 
 class GdbServer {
 public:
-    GdbServer(FEXCore::Context::Context *ctx);
+    GdbServer(FEXCore::Context::ContextImpl *ctx);
 
     // Public for threading
     void GdbServerLoop();
@@ -37,10 +38,10 @@ private:
     void Break(int signal);
 
     void OpenListenSocket();
-    std::unique_ptr<std::iostream> OpenSocket();
+    fextl::unique_ptr<std::iostream> OpenSocket();
     void StartThread();
-    std::string ReadPacket(std::iostream &stream);
-    void SendPacket(std::ostream &stream, const std::string& packet);
+    fextl::string ReadPacket(std::iostream &stream);
+    void SendPacket(std::ostream &stream, const fextl::string& packet);
 
     void SendACK(std::ostream &stream, bool NACK);
 
@@ -48,7 +49,7 @@ private:
     void WaitForThreadWakeup();
 
     struct HandledPacketType {
-      std::string Response{};
+      fextl::string Response{};
       enum ResponseType {
         TYPE_NONE,
         TYPE_UNKNOWN,
@@ -61,32 +62,32 @@ private:
     };
 
     void SendPacketPair(const HandledPacketType& packetPair);
-    HandledPacketType ProcessPacket(const std::string &packet);
-    HandledPacketType handleQuery(const std::string &packet);
-    HandledPacketType handleXfer(const std::string &packet);
-    HandledPacketType handleMemory(const std::string &packet);
-    HandledPacketType handleV(const std::string& packet);
-    HandledPacketType handleThreadOp(const std::string &packet);
-    HandledPacketType handleBreakpoint(const std::string &packet);
+    HandledPacketType ProcessPacket(const fextl::string &packet);
+    HandledPacketType handleQuery(const fextl::string &packet);
+    HandledPacketType handleXfer(const fextl::string &packet);
+    HandledPacketType handleMemory(const fextl::string &packet);
+    HandledPacketType handleV(const fextl::string& packet);
+    HandledPacketType handleThreadOp(const fextl::string &packet);
+    HandledPacketType handleBreakpoint(const fextl::string &packet);
     HandledPacketType handleProgramOffsets();
 
     HandledPacketType ThreadAction(char action, uint32_t tid);
 
-    std::string readRegs();
-    HandledPacketType readReg(const std::string& packet);
+    fextl::string readRegs();
+    HandledPacketType readReg(const fextl::string& packet);
 
-    FEXCore::Context::Context *CTX;
-    std::unique_ptr<FEXCore::Threads::Thread> gdbServerThread;
-    std::unique_ptr<std::iostream> CommsStream;
+    FEXCore::Context::ContextImpl *CTX;
+    fextl::unique_ptr<FEXCore::Threads::Thread> gdbServerThread;
+    fextl::unique_ptr<std::iostream> CommsStream;
     std::mutex sendMutex;
     bool SettingNoAckMode{false};
     bool NoAckMode{false};
     bool NonStopMode{false};
-    std::string ThreadString{};
-    std::string OSDataString{};
+    fextl::string ThreadString{};
+    fextl::string OSDataString{};
     void buildLibraryMap();
     std::atomic<bool> LibraryMapChanged = true;
-    std::string LibraryMapString{};
+    fextl::string LibraryMapString{};
 
     // Used to keep track of which signals to pass to the guest
     std::array<bool, SignalDelegator::MAX_SIGNALS + 1> PassSignals{};

External/FEXCore/Source/Interface/Core/HostFeatures.cpp

@@ -9,7 +9,7 @@
 #endif
 
 #ifdef _M_X86_64
-#include <xbyak/xbyak_util.h>
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #endif
 
 namespace FEXCore {
@@ -17,12 +17,12 @@ namespace FEXCore {
 // Data Zero Prohibited flag
 // 0b0 = ZVA/GVA/GZVA permitted
 // 0b1 = ZVA/GVA/GZVA prohibited
-constexpr uint32_t DCZID_DZP_MASK = 0b1'0000;
+[[maybe_unused]] constexpr uint32_t DCZID_DZP_MASK = 0b1'0000;
 // Log2 of the blocksize in 32-bit words
-constexpr uint32_t DCZID_BS_MASK = 0b0'1111;
+[[maybe_unused]] constexpr uint32_t DCZID_BS_MASK = 0b0'1111;
 
 #ifdef _M_ARM_64
-static uint32_t GetDCZID() {
+[[maybe_unused]] static uint32_t GetDCZID() {
   uint64_t Result{};
   __asm("mrs %[Res], DCZID_EL0"
       : [Res] "=r" (Result));
@@ -54,7 +54,12 @@ HostFeatures::HostFeatures() {
 #ifdef VIXL_SIMULATOR
   auto Features = vixl::CPUFeatures::All();
 #else
+#ifndef _WIN32
   auto Features = vixl::CPUFeatures::InferFromOS();
+#else
+  // Need to use ID registers in WINE.
+  auto Features = vixl::CPUFeatures::InferFromIDRegisters();
+#endif
 #endif
   SupportsAES = Features.Has(vixl::CPUFeatures::Feature::kAES);
   SupportsCRC = Features.Has(vixl::CPUFeatures::Feature::kCRC32);
@@ -133,13 +138,14 @@ HostFeatures::HostFeatures() {
   SupportsPMULL_128Bit = Features.has(Xbyak::util::Cpu::tPCLMULQDQ);
 
   // xbyak doesn't know how to check for CLZero
-  uint32_t eax, ebx, ecx, edx;
   // First ensure we support a new enough extended CPUID function range
-  __cpuid(0x8000'0000, eax, ebx, ecx, edx);
-  if (eax >= 0x8000'0008U) {
+
+  uint32_t data[4];
+  Xbyak::util::Cpu::getCpuid(0x8000'0000, data);
+  if (data[0] >= 0x8000'0008U) {
     // CLZero defined in 8000_00008_EBX[bit 0]
-    __cpuid(0x8000'0008, eax, ebx, ecx, edx);
-    SupportsCLZERO = ebx & 1;
+    Xbyak::util::Cpu::getCpuid(0x8000'0008, data);
+    SupportsCLZERO = data[1] & 1;
   }
 
   SupportsFlushInputsToZero = true;
@@ -160,5 +166,11 @@ HostFeatures::HostFeatures() {
     SupportsCLZERO = DCZID_Bytes == CPUIDEmu::CACHELINE_SIZE;
   }
 #endif
+
+  // Disable AVX if the configuration explicitly has disabled it.
+  FEX_CONFIG_OPT(EnableAVX, ENABLEAVX);
+  if (!EnableAVX) {
+    SupportsAVX = false;
+  }
 }
 }

External/FEXCore/Source/Interface/Core/Interpreter/BranchOps.cpp

@@ -17,22 +17,8 @@ $end_info$
 #include <unistd.h>
 
 namespace FEXCore::CPU {
-[[noreturn]]
-static void SignalReturn(FEXCore::Core::InternalThreadState *Thread, bool RT) {
-  Thread->CTX->SignalThread(Thread, RT ? FEXCore::Core::SignalEvent::ReturnRT : FEXCore::Core::SignalEvent::Return);
-
-  LOGMAN_MSG_A_FMT("unreachable");
-  FEX_UNREACHABLE;
-}
-
 #define DEF_OP(x) void InterpreterOps::Op_##x(IR::IROp_Header *IROp, IROpData *Data, IR::NodeID Node)
 
-DEF_OP(SignalReturn) {
-  auto Op = IROp->C<IR::IROp_SignalReturn>();
-
-  SignalReturn(Data->State, Op->IsRT);
-}
-
 DEF_OP(CallbackReturn) {
   Data->State->CurrentFrame->Pointers.Interpreter.CallbackReturn(Data->State, Data->StackEntry);
 }
@@ -93,7 +79,7 @@ DEF_OP(Syscall) {
     Args.Argument[j] = *GetSrc<uint64_t*>(Data->SSAData, Op->Header.Args[j]);
   }
 
-  uint64_t Res = FEXCore::Context::HandleSyscall(Data->State->CTX->SyscallHandler, Data->State->CurrentFrame, &Args);
+  uint64_t Res = FEXCore::Context::HandleSyscall(static_cast<Context::ContextImpl*>(Data->State->CTX)->SyscallHandler, Data->State->CurrentFrame, &Args);
   GD = Res;
 }
 
@@ -128,7 +114,7 @@ DEF_OP(InlineSyscall) {
 DEF_OP(Thunk) {
   auto Op = IROp->C<IR::IROp_Thunk>();
 
-  auto thunkFn = Data->State->CTX->ThunkHandler->LookupThunk(Op->ThunkNameHash);
+  auto thunkFn = static_cast<Context::ContextImpl*>(Data->State->CTX)->ThunkHandler->LookupThunk(Op->ThunkNameHash);
   thunkFn(*GetSrc<void**>(Data->SSAData, Op->ArgPtr));
 }
 
@@ -144,7 +130,7 @@ DEF_OP(ValidateCode) {
 }
 
 DEF_OP(ThreadRemoveCodeEntry) {
-  Data->State->CTX->ThreadRemoveCodeEntryFromJit(Data->State->CurrentFrame, Data->CurrentEntry);
+  static_cast<Context::ContextImpl*>(Data->State->CTX)->ThreadRemoveCodeEntryFromJit(Data->State->CurrentFrame, Data->CurrentEntry);
 }
 
 DEF_OP(CPUID) {
@@ -153,10 +139,19 @@ DEF_OP(CPUID) {
   const uint64_t Arg = *GetSrc<uint64_t*>(Data->SSAData, Op->Function);
   const uint64_t Leaf = *GetSrc<uint64_t*>(Data->SSAData, Op->Leaf);
 
-  auto Results = Data->State->CTX->CPUID.RunFunction(Arg, Leaf);
+  auto Results = Data->State->CTX->RunCPUIDFunction(Arg, Leaf);
   memcpy(DstPtr, &Results, sizeof(uint32_t) * 4);
 }
 
+DEF_OP(XGETBV) {
+  auto Op = IROp->C<IR::IROp_XGetBV>();
+  uint32_t *DstPtr = GetDest<uint32_t*>(Data->SSAData, Node);
+  const uint32_t Function = *GetSrc<uint32_t*>(Data->SSAData, Op->Function);
+
+  auto Results = Data->State->CTX->RunXCRFunction(Function);
+  memcpy(DstPtr, &Results, sizeof(uint32_t) * 2);
+}
+
 #undef DEF_OP
 
 } // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/Interpreter/ConversionOps.cpp

@@ -62,6 +62,23 @@ DEF_OP(VCastFromGPR) {
   memcpy(GDP, GetSrc<void*>(Data->SSAData, Op->Src), Op->Header.ElementSize);
 }
 
+DEF_OP(VDupFromGPR) {
+  const auto Op = IROp->C<IR::IROp_VDupFromGPR>();
+  const auto OpSize = IROp->Size;
+
+  const auto ElementSize = IROp->ElementSize;
+  const auto NumElements = OpSize / IROp->ElementSize;
+
+  uint8_t Tmp[Core::CPUState::XMM_AVX_REG_SIZE]{};
+
+  const auto *Src = GetSrc<void*>(Data->SSAData, Op->Src);
+  for (size_t i = 0; i < NumElements; i++) {
+    memcpy(Tmp + (i * ElementSize), Src, ElementSize);
+  }
+
+  memcpy(GDP, Tmp, sizeof(Tmp));
+}
+
 DEF_OP(Float_FromGPR_S) {
   auto Op = IROp->C<IR::IROp_Float_FromGPR_S>();
 

External/FEXCore/Source/Interface/Core/Interpreter/F80Ops.cpp

@@ -8,7 +8,7 @@ $end_info$
 #include "Interface/Core/Interpreter/InterpreterOps.h"
 #include "Interface/Core/Interpreter/InterpreterDefines.h"
 
-#include "F80Ops.h"
+#include "Interface/Core/Interpreter/Fallbacks/F80Fallbacks.h"
 
 #include <cstdint>
 
@@ -417,7 +417,6 @@ DEF_OP(F64SCALE) {
   memcpy(GDP, &Tmp, sizeof(double));
 }
 
-
 #undef DEF_OP
 
 } // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/Interpreter/Fallbacks/F80Fallbacks.h

@@ -4,12 +4,9 @@
 
 #include <FEXCore/IR/IR.h>
 
+#include "Interface/Core/Interpreter/Fallbacks/FallbackOpHandler.h"
+
 namespace FEXCore::CPU {
-template<IR::IROps Op>
-struct OpHandlers {
-
-};
-
 template<>
 struct OpHandlers<IR::OP_F80CVTTO> {
   static X80SoftFloat handle4(float src) {
@@ -395,5 +392,4 @@ struct OpHandlers<IR::OP_F80LOADFCW> {
   }
 };
 
-
-}
+} // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/Interpreter/Fallbacks/FallbackOpHandler.h

@@ -0,0 +1,75 @@
+#pragma once
+
+#include <cstdint>
+
+namespace FEXCore::IR {
+enum IROps : uint8_t;
+}
+
+namespace FEXCore::CPU {
+
+// Base template for fallback handling.
+//
+// Registering and hooking up fallback is currently like so:
+//
+// 1. Go to InterpreterFallbacks.cpp and create a template specialization of
+//    the GetFallbackInfo member function.
+//
+//    This member function should reasonably define what the fallback you're
+//    going to create will take as parameters and return as a result. For example:
+//
+//    template<>
+//    FallbackInfo GetFallbackInfo(X80SoftFloat(*fn)(double), Core::FallbackHandlerIndex Index) {
+//      return {FABI_F80_F64, (void*)fn, Index};
+//    }
+//
+//    Defines info about a fallback that takes a double as an argument and
+//    returns a X80SoftFloat instance.
+//
+//    You will also want to define a new FallbackHandlerIndex enum member and use it
+//    to set up the new info handler into the Info array in FillFallbackIndexPointers.
+//
+// 1.1. (potentially optional). Define a new ABI element in the FallbackAPI enum.
+//      This ABI enum value will be used to tell the JITs how to handle the fallback
+//      properly. These enum values specify the return type followed by its argument types.
+//
+//      So, FABI_I64_F80_F80, for example indicates that the function will behave like a
+//      function as if were defined as:
+//
+//      uint64_t fn(X80SoftFloat, X80SoftFloat)
+//
+// 1.2. (potentially optional). If you needed to define a new enum ABI type like in 1.1, then
+//      you need to add the handling for it in the JITs, which can be found in the respective
+//      JIT's JIT.cpp file in a function called Op_Unhandled
+//
+//      You need to add a new case to the ABI switch statement using the new ABI type
+//      and do the necessary moving of data from register-allocated JIT parameters
+//      into that platform's registers that respects the calling convention. After this is
+//      done, most of the necessary background boilerplate is finished.
+//
+// 2. Now, make a specialization of this class with a member function named 'handle()'
+//    that takes the same parameters as the ones described in the fallback info function
+//    specialization.
+//
+//    For example, if you have the fallback info from the example in step 1, it would be:
+//
+//    template <>
+//    struct OpHandlers<IR::CoolNewIROpcode> {
+//      static X80SoftFloat handle(double src) {
+//        return ...;
+//      }
+//    };
+//
+// 3. Fill out the behavior of the OpHandler specialization to perform what you would like
+//    the fallback to do.
+//
+// 4. Add an implementation of the IR op to the Interpreter that passes through to the
+//    OpHandler implementation.
+//
+// 5. Done.
+//
+template <IR::IROps Op>
+struct OpHandlers {
+};
+
+} // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/Interpreter/Fallbacks/InterpreterFallbacks.cpp

@@ -1,6 +1,8 @@
-#include "FEXCore/Core/CoreState.h"
+#include <FEXCore/Core/CoreState.h>
+
 #include "Interface/Core/Interpreter/InterpreterOps.h"
-#include "Interface/Core/Interpreter/F80Ops.h"
+#include "Interface/Core/Interpreter/Fallbacks/F80Fallbacks.h"
+#include "Interface/Core/Interpreter/Fallbacks/VectorFallbacks.h"
 
 #include <cstddef>
 #include <cstdint>
@@ -87,6 +89,16 @@ FallbackInfo GetFallbackInfo(X80SoftFloat(*fn)(X80SoftFloat, X80SoftFloat), FEXC
   return {FABI_F80_F80_F80, (void*)fn, HandlerIndex};
 }
 
+template<>
+FallbackInfo GetFallbackInfo(uint32_t(*fn)(uint64_t, uint64_t, __uint128_t, __uint128_t, uint16_t), FEXCore::Core::FallbackHandlerIndex HandlerIndex) {
+  return {FABI_I32_I64_I64_I128_I128_I16, (void*)fn, HandlerIndex};
+}
+
+template<>
+FallbackInfo GetFallbackInfo(uint32_t(*fn)(__uint128_t, __uint128_t, uint16_t), FEXCore::Core::FallbackHandlerIndex HandlerIndex) {
+  return {FABI_I32_I128_I128_I16, (void*)fn, HandlerIndex};
+}
+
 void InterpreterOps::FillFallbackIndexPointers(uint64_t *Info) {
   Info[Core::OPINDEX_F80LOADFCW] = reinterpret_cast<uint64_t>(GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_F80LOADFCW>::handle, Core::OPINDEX_F80LOADFCW).fn);
   Info[Core::OPINDEX_F80CVTTO_4] = reinterpret_cast<uint64_t>(GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_F80CVTTO>::handle4, Core::OPINDEX_F80CVTTO_4).fn);
@@ -144,6 +156,9 @@ void InterpreterOps::FillFallbackIndexPointers(uint64_t *Info) {
   Info[Core::OPINDEX_F64FPREM1] = reinterpret_cast<uint64_t>(GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_F64FPREM1>::handle, Core::OPINDEX_F64FPREM1).fn);
   Info[Core::OPINDEX_F64SCALE] = reinterpret_cast<uint64_t>(GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_F64SCALE>::handle, Core::OPINDEX_F64SCALE).fn);
 
+  // SSE4.2 string instructions
+  Info[Core::OPINDEX_VPCMPESTRX] = reinterpret_cast<uint64_t>(GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_VPCMPESTRX>::handle, Core::OPINDEX_VPCMPESTRX).fn);
+  Info[Core::OPINDEX_VPCMPISTRX] = reinterpret_cast<uint64_t>(GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_VPCMPISTRX>::handle, Core::OPINDEX_VPCMPISTRX).fn);
 }
 
 bool InterpreterOps::GetFallbackHandler(IR::IROp_Header const *IROp, FallbackInfo *Info) {
@@ -302,6 +317,14 @@ bool InterpreterOps::GetFallbackHandler(IR::IROp_Header const *IROp, FallbackInf
     COMMON_F64_OP(FPREM)
     COMMON_F64_OP(SCALE)
 
+    // SSE4.2 Fallbacks
+    case IR::OP_VPCMPESTRX:
+      *Info = GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_VPCMPESTRX>::handle, Core::OPINDEX_VPCMPESTRX);
+      return true;
+    case IR::OP_VPCMPISTRX:
+      *Info = GetFallbackInfo(&FEXCore::CPU::OpHandlers<IR::OP_VPCMPISTRX>::handle, Core::OPINDEX_VPCMPISTRX);
+      return true;
+
     default:
       break;
   }

External/FEXCore/Source/Interface/Core/Interpreter/Fallbacks/VectorFallbacks.h

@@ -0,0 +1,408 @@
+#pragma once
+
+#include <algorithm>
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <cstring>
+
+#include <FEXCore/IR/IR.h>
+
+#include "Interface/Core/Interpreter/Fallbacks/FallbackOpHandler.h"
+
+namespace FEXCore::CPU {
+
+template<>
+struct OpHandlers<IR::OP_VPCMPESTRX> {
+  enum class AggregationOp {
+    EqualAny     = 0b00,
+    Ranges       = 0b01,
+    EqualEach    = 0b10,
+    EqualOrdered = 0b11,
+  };
+
+  enum class SourceData {
+    U8,
+    U16,
+    S8,
+    S16,
+  };
+
+  enum class Polarity {
+    Positive,
+    Negative,
+    PositiveMasked,
+    NegativeMasked,
+  };
+
+  static uint32_t handle(uint64_t RAX, uint64_t RDX, __uint128_t lhs, __uint128_t rhs, uint16_t control) {
+    // Subtract by 1 in order to make validity limits 0-based
+    const auto valid_lhs = GetExplicitLength(RAX, control) - 1;
+    const auto valid_rhs = GetExplicitLength(RDX, control) - 1;
+
+    return MainBody(lhs, valid_lhs, rhs, valid_rhs, control);
+  }
+
+  // Main PCMPXSTRX algorithm body. Allows for reuse with both implicit and explicit length variants.
+  static uint32_t MainBody(const __uint128_t& lhs, int valid_lhs, const __uint128_t& rhs, int valid_rhs, uint16_t control) {
+    const uint32_t aggregation = PerformAggregation(lhs, valid_lhs, rhs, valid_rhs, control);
+    const uint32_t upper_limit = (16U >> (control & 1)) - 1;
+
+    // Bits are arranged as:
+    // Bit #:   3    2    1    0
+    //         [OF | CF | SF | ZF]
+    uint32_t flags = 0;
+    flags |= (valid_rhs < upper_limit) ? 0b01 : 0b00;
+    flags |= (valid_lhs < upper_limit) ? 0b10 : 0b00;
+
+    const uint32_t result = HandlePolarity(aggregation, control, upper_limit, valid_rhs);
+    if (result != 0) {
+      flags |= 0b0100;
+    }
+    if ((result & 1) != 0) {
+      flags |= 0b1000;
+    }
+
+    // We tack the flags on top of the result to avoid needing to handle
+    // multiple return values in the JITs.
+    return result | (flags << 16);
+  }
+
+  static int32_t GetExplicitLength(uint64_t reg, uint16_t control) {
+    // Bit 8 controls whether or not the reg value is 64-bit or 32-bit.
+    int64_t value = 0;
+    if (((control >> 8) & 1) != 0) {
+      value = static_cast<int64_t>(reg);
+    } else {
+      // We need a sign extend in this case.
+      value = static_cast<int32_t>(reg);
+    }
+
+    // If control[0] is set, then we're dealing with words instead of bytes
+    const int64_t limit = (control & 1) != 0 ? 8 : 16;
+
+    // Length needs to saturate to 16 (if bytes) or 8 (if words)
+    // when the length value is greater than 16 (if bytes)/8 (if words)
+    // or if the length value is less than -16 (if bytes)/-8 (if words).
+    if (value < -limit || value > limit) {
+      return limit;
+    }
+
+    return std::abs(static_cast<int>(value));
+  }
+
+  static int32_t GetElement(const __uint128_t& vec, int32_t index, uint16_t control) {
+    const auto* vec_ptr = reinterpret_cast<const uint8_t*>(&vec);
+
+    // Control bits [1:0] define the data type being dealt with.
+    switch (static_cast<SourceData>(control & 0b11)) {
+    case SourceData::U8:
+      return static_cast<int32_t>(vec_ptr[index]);
+    case SourceData::U16: {
+      uint16_t value{};
+      std::memcpy(&value, vec_ptr + (sizeof(uint16_t) * static_cast<size_t>(index)), sizeof(value));
+      return value;
+    }
+    case SourceData::S8:
+      return static_cast<int8_t>(vec_ptr[index]);
+    case SourceData::S16:
+    default: {
+      int16_t value{};
+      std::memcpy(&value, vec_ptr + (sizeof(int16_t) * static_cast<size_t>(index)), sizeof(value));
+      return value;
+    }
+    }
+  }
+
+  static uint32_t PerformAggregation(const __uint128_t& lhs, int32_t valid_lhs,
+                                     const __uint128_t& rhs, int32_t valid_rhs,
+                                     uint16_t control) {
+    switch (static_cast<AggregationOp>((control >> 2) & 0b11)) {
+    case AggregationOp::EqualAny:
+      return HandleEqualAny(lhs, valid_lhs, rhs, valid_rhs, control);
+    case AggregationOp::Ranges:
+      return HandleRanges(lhs, valid_lhs, rhs, valid_rhs, control);
+    case AggregationOp::EqualEach:
+      return HandleEqualEach(lhs, valid_lhs, rhs, valid_rhs, control);
+    case AggregationOp::EqualOrdered:
+    default:
+      return HandleEqualOrdered(lhs, valid_lhs, rhs, valid_rhs, control);
+    }
+  }
+
+  static uint32_t HandlePolarity(uint32_t value, uint16_t control, int upper_limit, int valid_rhs) {
+    switch (static_cast<Polarity>((control >> 4) & 0b11)) {
+      case Polarity::Negative:
+        return value ^ ((2U << upper_limit) - 1);
+      case Polarity::NegativeMasked:
+        return value ^ ((1U << (valid_rhs + 1)) - 1);
+      case Polarity::Positive:
+      case Polarity::PositiveMasked:
+      default:
+        // Both positive masking and positive polarity are documented
+        // as both being equivalent to "IntRes2 = IntRes1", where IntRes1
+        // is our 'value' parameter, so we don't need to do anything in
+        // these cases except return the same value.
+        return value;
+    }
+  }
+
+  // Finds characters from an overall character set.
+  //
+  // Scans through RHS trying to find any characters contained in LHS.
+  // Think of this as a sort of vectorized version of strspn (kind of).
+  //
+  // e.g. Assume operating on two character vectors as unsigned words
+  //
+  //         0  1  2  3  4  5  6  7
+  // LHS -> [a, b, c, d, e, f, g, n]
+  // RHS -> [z, k, v, c, d, o, p, n]
+  //
+  // With both explicit lengths for each string being 8 (the max length for words),
+  // this would result in an intermediate result like:
+  //
+  //            0b1001'1000
+  //              │  │ │
+  // 'n' match ───┘  │ │
+  //                 │ │
+  // 'd' match ──────┘ │
+  //                   │
+  // 'c' match ────────┘
+  //
+  static uint32_t HandleEqualAny(const __uint128_t& lhs, int32_t valid_lhs,
+                                 const __uint128_t& rhs, int32_t valid_rhs,
+                                 uint16_t control) {
+    uint32_t result = 0;
+
+    for (int j = valid_rhs; j >= 0; j--) {
+      result <<= 1;
+
+      const int rhs_value = GetElement(rhs, j, control);
+      for (int i = valid_lhs; i >= 0; i--) {
+        const int lhs_value = GetElement(lhs, i, control);
+        result |= static_cast<uint32_t>(rhs_value == lhs_value);
+      }
+    }
+
+    return result;
+  }
+
+  // Determines if a character falls within a limited range
+  //
+  // Scans through rhs using a range denoted by two elements
+  // in lhs and determines if the respective character in rhs
+  // falls within its range.
+  //
+  // i.e.
+  //      lhs_upper_bound >= rhs_value && lhs_lower_bound <= rhs_value
+  //
+  // e.g. Assume operating on two character vectors as unsigned words
+  //
+  //         0  1  2  3  4  5  6  7
+  // LHS -> [a, z, A, Z, 0, 0, 0, 0]
+  // RHS -> [z, k, ., C, M, ;, \, ']
+  //
+  // With LHS's length being 4 and RHS's lenth being 8,
+  // this would result in an intermediate result like:
+  //
+  //                          0b0001'1011
+  //                               │ │ ││
+  // 'z' >= 'M' && 'a' <= 'M' ─────┘ │ ││
+  //                                 │ ││
+  // 'z' >= 'C' && 'a' <= 'C' ───────┘ ││
+  //                                   ││
+  // 'Z' >= 'k' && 'A' <= 'k' ─────────┘│
+  //                                    │
+  // 'Z' >= 'z' && 'A' <= 'z' ──────────┘
+  //
+  static uint32_t HandleRanges(const __uint128_t& lhs, int32_t valid_lhs,
+                               const __uint128_t& rhs, int32_t valid_rhs,
+                               uint16_t control) {
+    uint32_t result = 0;
+
+    for (int j = valid_rhs; j >= 0; j--) {
+      result <<= 1;
+
+      const int element = GetElement(rhs, j, control);
+      for (int i = (valid_lhs - 1) | 1; i >= 0; i -= 2) {
+        const int upper_bound = GetElement(lhs, i - 0, control);
+        const int lower_bound = GetElement(lhs, i - 1, control);
+
+        const bool ge = upper_bound >= element;
+        const bool le = lower_bound <= element;
+
+        result |= static_cast<uint32_t>(ge && le);
+      }
+    }
+
+    return result;
+  }
+
+  // Determines if each character is equal to one another (string compare)
+  //
+  // Essentially the PCMPXSTRX variant of memcmp/strcmp. Sets the bit of the
+  // resulting mask if both elements are equal to one another. Otherwise
+  // sets it to false.
+  //
+  // e.g. Assume operating on two character vectors as unsigned words
+  //
+  //         0  1  2  3  4  5  6  7
+  // LHS -> [a, b, c, d, e, f, g, n]
+  // RHS -> [a, b, c, d, e, f, e, x]
+  //
+  // With both explicit lengths for each string being 8 (the max length for words),
+  // this would result in an intermediate result like:
+  //
+  //            0b0011'1111
+  //                ││ ││││
+  // 'f' == 'f' ────┘│ ││││
+  //                 │ ││││
+  // 'e' == 'e' ─────┘ ││││
+  //                   ││││
+  // 'd' == 'd' ───────┘│││
+  //                    │││
+  // 'c' == 'c' ────────┘││
+  //                     ││
+  // 'b' == 'b' ─────────┘│
+  //                      │
+  // 'a' == 'a' ──────────┘
+  //
+  static uint32_t HandleEqualEach(const __uint128_t& lhs, int32_t valid_lhs,
+                                  const __uint128_t& rhs, int32_t valid_rhs,
+                                  uint16_t control) {
+    const auto upper_limit = (16 >> (control & 1)) - 1;
+    const auto max_valid = std::max(valid_lhs, valid_rhs);
+    const auto min_valid = std::min(valid_lhs, valid_rhs);
+
+    // All values past the end of string must be forced to true.
+    // (See 4.1.6 Valid/Invalid Override of Comparisons in the Intel Software Development Manual)
+    // So we can calculate this part of the mask ahead of time and set all those to-be bits to true
+    // and then progressively shift them into place over the course of execution.
+    uint32_t result = (1U << (upper_limit - max_valid)) - 1;
+    result <<= (max_valid - min_valid);
+
+    for (int i = min_valid; i >= 0; i--) {
+      const int lhs_element = GetElement(lhs, i, control);
+      const int rhs_element = GetElement(rhs, i, control);
+
+      result <<= 1;
+      result |= static_cast<uint32_t>(lhs_element == rhs_element);
+    }
+
+    return result;
+  }
+
+  // Determines if a substring exists within an overall string
+  //
+  // Somewhat equivalent to the behavior of strstr.
+  //
+  // Sets the corresponding index in the result where a substring is found.
+  //
+  // e.g. Assume operating on two character vectors as unsigned words
+  //
+  //         0  1  2  3  4  5  6  7
+  // LHS -> [b, a, x, z, y, v, o, m]
+  // RHS -> [b, a, d, b, a, n, k, s]
+  //
+  // With the length of LHS being 2 and the length of RHS being 8, we have a composition like:
+  //
+  //      Substring to look for
+  //       ┌──┴──┐
+  // LHS -> [b, a, x, z, y, v, o, m]
+  // RHS -> [b, a, d, b, a, n, k, s]
+  //       └───────────┬────────────┘
+  //         Entire string to search
+  //
+  // And we end up with a result like:
+  //
+  //            0b0000'1001
+  //                   │  │
+  // At index 3 ───────┘  │
+  //                      │
+  // At index 0 ──────────┘
+  //
+  static uint32_t HandleEqualOrdered(const __uint128_t& lhs, int32_t valid_lhs,
+                                     const __uint128_t& rhs, int32_t valid_rhs,
+                                     uint16_t control) {
+    const auto upper_limit = (16 >> (control & 1)) - 1;
+
+    // Edge case!
+    // If we have *no* valid characters in our inner string, then
+    // we need to return the intermediate result as
+    // 0xFF (if operating on words) or 0xFFFF (if operating on bytes)
+    if (valid_lhs == -1) {
+      return (2U << upper_limit) - 1;
+    }
+
+    uint32_t result = 0;
+    const int initial = valid_rhs == upper_limit ? valid_rhs
+                                                 : valid_rhs - valid_lhs;
+    for (int j = initial; j >= 0; j--) {
+      result <<= 1;
+
+      uint32_t value = 1;
+      const int start = std::min(valid_rhs - j, valid_lhs);
+      for (int i = start; i >= 0; i--) {
+        const int lhs_value = GetElement(lhs, i + 0, control);
+        const int rhs_value = GetElement(rhs, i + j, control);
+
+        value &= static_cast<uint32_t>(lhs_value == rhs_value);
+      }
+
+      result |= value;
+    }
+
+    return result;
+  }
+};
+
+template<>
+struct OpHandlers<IR::OP_VPCMPISTRX> {
+  // Essentially the same in terms of behavior with VPCMPESTRX instructions,
+  // with the only difference being that the length of the string is encoded
+  // as part of the data vectors passed in.
+  //
+  // i.e. Length is determined by the presence of a NUL (all-zero) character
+  //      within the data.
+  //
+  //      If no NUL character exists, then the length of the strings are assumed
+  //      to be the max length possible for the given character size specified
+  //      in the control flags (16 characters for 8-bit, and 8 characters for 16-bit).
+  //
+  static uint32_t handle(__uint128_t lhs, __uint128_t rhs, uint16_t control) {
+    // Subtract by 1 in order to make validity limits 0-based
+    const auto valid_lhs = GetImplicitLength(lhs, control) - 1;
+    const auto valid_rhs = GetImplicitLength(rhs, control) - 1;
+
+    return OpHandlers<IR::OP_VPCMPESTRX>::MainBody(lhs, valid_lhs, rhs, valid_rhs, control);
+  }
+
+  static int32_t GetImplicitLength(const __uint128_t& data, uint16_t control) {
+    const auto* data_u8 = reinterpret_cast<const uint8_t*>(&data);
+    const auto is_using_words = (control & 1) != 0;
+
+    int32_t length = 0;
+
+    if (is_using_words) {
+      const auto get_word = [data_u8](int32_t index) {
+        const auto* src = data_u8 + (index * sizeof(uint16_t));
+
+        uint16_t element{};
+        std::memcpy(&element, src, sizeof(uint16_t));
+        return element;
+      };
+
+      while (length < 8 && get_word(length) != 0) {
+        length++;
+      }
+    } else {
+      while (length < 16 && data_u8[length] != 0) {
+        length++;
+      }
+    }
+
+    return length;
+  }
+};
+
+} // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/Interpreter/InterpreterClass.h

@@ -6,27 +6,24 @@
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/IR/IntrusiveIRList.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/vector.h>
 
 namespace FEXCore::CPU {
 class Dispatcher;
 class X86DispatchGenerator;
 class Arm64DispatchGenerator;
 
-#define DESTMAP_AS_MAP 0
-#if DESTMAP_AS_MAP
-using DestMapType = std::unordered_map<uint32_t, uint32_t>;
-#else
-using DestMapType = std::vector<uint32_t>;
-#endif
+using DestMapType = fextl::vector<uint32_t>;
 
 class InterpreterCore final : public CPUBackend {
 public:
   explicit InterpreterCore(Dispatcher *Dispatch,
                            FEXCore::Core::InternalThreadState *Thread);
 
-  [[nodiscard]] std::string GetName() override { return "Interpreter"; }
+  [[nodiscard]] fextl::string GetName() override { return "Interpreter"; }
 
-  [[nodiscard]] void *CompileCode(uint64_t Entry,
+  [[nodiscard]] CPUBackend::CompiledCode CompileCode(uint64_t Entry,
                                   FEXCore::IR::IRListView const *IR,
                                   FEXCore::Core::DebugData *DebugData,
                                   FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) override;
@@ -35,8 +32,8 @@ public:
 
   [[nodiscard]] bool NeedsOpDispatch() override { return true; }
 
-  static void InitializeSignalHandlers(FEXCore::Context::Context *CTX);
-  
+  static void InitializeSignalHandlers(FEXCore::Context::ContextImpl *CTX);
+
   void ClearCache() override;
 
 private:

External/FEXCore/Source/Interface/Core/Interpreter/InterpreterCore.cpp

@@ -1,17 +1,14 @@
 #include "Interface/Context/Context.h"
 
-#include "Interface/Core/ArchHelpers/Arm64.h"
-#include "Interface/Core/ArchHelpers/MContext.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
 #include "Interface/Core/Interpreter/InterpreterClass.h"
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/CoreState.h>
-#include <FEXCore/Core/SignalDelegator.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/MathUtils.h>
+#include <FEXCore/fextl/memory.h>
 
-#include <memory>
 #include <signal.h>
 #include <stdint.h>
 #include <utility>
@@ -49,27 +46,21 @@ InterpreterCore::InterpreterCore(Dispatcher *Dispatcher, FEXCore::Core::Internal
   ClearCache();
 }
 
-void InterpreterCore::InitializeSignalHandlers(FEXCore::Context::Context *CTX) {
-
-#ifdef _M_ARM_64
-  CTX->SignalDelegation->RegisterHostSignalHandler(SIGBUS, [](FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext) -> bool {
-    return FEXCore::ArchHelpers::Arm64::HandleSIGBUS(true, Signal, info, ucontext);
-  }, true);
-#endif
-}
-
-void *InterpreterCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRListView const *IR, [[maybe_unused]] FEXCore::Core::DebugData *DebugData, FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) {
+CPUBackend::CompiledCode InterpreterCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRListView const *IR, [[maybe_unused]] FEXCore::Core::DebugData *DebugData, FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) {
 
   const auto IRSize = AlignUp(IR->GetInlineSize(), 16);
   const auto MaxSize = IRSize + Dispatcher::MaxInterpreterTrampolineSize + GDBEnabled * Dispatcher::MaxGDBPauseCheckSize;
 
   if ((BufferUsed + MaxSize) > CurrentCodeBuffer->Size) {
-    ThreadState->CTX->ClearCodeCache(ThreadState);
+    static_cast<Context::ContextImpl*>(ThreadState->CTX)->ClearCodeCache(ThreadState);
   }
 
-  const auto BufferStart = CurrentCodeBuffer->Ptr + BufferUsed;
+  CPUBackend::CompiledCode CodeData{};
 
-  auto DestBuffer = BufferStart;
+  const auto BufferStartOffset = BufferUsed;
+  CodeData.BlockBegin = CodeData.BlockEntry = CurrentCodeBuffer->Ptr + BufferStartOffset;
+
+  auto DestBuffer = CodeData.BlockBegin;
 
   if (GDBEnabled) {
     const auto GDBSize = Dispatch->GenerateGDBPauseCheck(DestBuffer, Entry);
@@ -86,7 +77,9 @@ void *InterpreterCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR:
   DestBuffer += IRSize;
   BufferUsed += IRSize;
 
-  return BufferStart;
+  CodeData.Size = BufferUsed - BufferStartOffset;
+
+  return CodeData;
 }
 
 void InterpreterCore::ClearCache() {
@@ -95,12 +88,8 @@ void InterpreterCore::ClearCache() {
   BufferUsed = 0;
 }
 
-std::unique_ptr<CPUBackend> CreateInterpreterCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalThreadState *Thread) {
-  return std::make_unique<InterpreterCore>(ctx->Dispatcher.get(), Thread);
-}
-
-void InitializeInterpreterSignalHandlers(FEXCore::Context::Context *CTX) {
-  InterpreterCore::InitializeSignalHandlers(CTX);
+fextl::unique_ptr<CPUBackend> CreateInterpreterCore(FEXCore::Context::ContextImpl *ctx, FEXCore::Core::InternalThreadState *Thread) {
+  return fextl::make_unique<InterpreterCore>(ctx->Dispatcher.get(), Thread);
 }
 
 CPUBackendFeatures GetInterpreterBackendFeatures() {

External/FEXCore/Source/Interface/Core/Interpreter/InterpreterCore.h

@@ -1,9 +1,10 @@
 #pragma once
 
-#include <memory>
+#include <FEXCore/Core/CPUBackend.h>
+#include <FEXCore/fextl/memory.h>
 
 namespace FEXCore::Context {
-struct Context;
+class ContextImpl;
 }
 
 namespace FEXCore::Core {
@@ -14,9 +15,9 @@ namespace FEXCore::CPU {
 class CPUBackend;
 struct DispatcherConfig;
 
-[[nodiscard]] std::unique_ptr<CPUBackend> CreateInterpreterCore(FEXCore::Context::Context *ctx,
+[[nodiscard]] fextl::unique_ptr<CPUBackend> CreateInterpreterCore(FEXCore::Context::ContextImpl *ctx,
                                                                 FEXCore::Core::InternalThreadState *Thread);
-void InitializeInterpreterSignalHandlers(FEXCore::Context::Context *CTX);
+void InitializeInterpreterSignalHandlers(FEXCore::Context::ContextImpl *CTX);
 CPUBackendFeatures GetInterpreterBackendFeatures();
 
 } // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/Interpreter/InterpreterOps.cpp

@@ -2,11 +2,6 @@
 #include "Interface/Core/CPUID.h"
 #include "InterpreterDefines.h"
 #include "InterpreterOps.h"
-#include "F80Ops.h"
-
-#ifdef _M_ARM_64
-#include "Interface/Core/ArchHelpers/Arm64.h"
-#endif
 
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/Core/CoreState.h>
@@ -113,7 +108,6 @@ constexpr OpHandlerArray InterpreterOpHandlers = [] {
   REGISTER_OP(ATOMICFETCHNEG,         AtomicFetchNeg);
 
   // Branch ops
-  REGISTER_OP(SIGNALRETURN,           SignalReturn);
   REGISTER_OP(CALLBACKRETURN,         CallbackReturn);
   REGISTER_OP(EXITFUNCTION,           ExitFunction);
   REGISTER_OP(JUMP,                   Jump);
@@ -124,10 +118,12 @@ constexpr OpHandlerArray InterpreterOpHandlers = [] {
   REGISTER_OP(VALIDATECODE,           ValidateCode);
   REGISTER_OP(THREADREMOVECODEENTRY,        ThreadRemoveCodeEntry);
   REGISTER_OP(CPUID,                  CPUID);
+  REGISTER_OP(XGETBV,                 XGETBV);
 
   // Conversion ops
   REGISTER_OP(VINSGPR,                VInsGPR);
   REGISTER_OP(VCASTFROMGPR,           VCastFromGPR);
+  REGISTER_OP(VDUPFROMGPR,            VDupFromGPR);
   REGISTER_OP(FLOAT_FROMGPR_S,        Float_FromGPR_S);
   REGISTER_OP(FLOAT_FTOF,             Float_FToF);
   REGISTER_OP(VECTOR_STOF,            Vector_SToF);
@@ -154,6 +150,10 @@ constexpr OpHandlerArray InterpreterOpHandlers = [] {
   REGISTER_OP(STOREMEM,               StoreMem);
   REGISTER_OP(LOADMEMTSO,             LoadMem);
   REGISTER_OP(STOREMEMTSO,            StoreMem);
+  REGISTER_OP(VLOADVECTORMASKED,      VLoadVectorMasked);
+  REGISTER_OP(VSTOREVECTORMASKED,     VStoreVectorMasked);
+  REGISTER_OP(MEMSET,                 MemSet);
+  REGISTER_OP(MEMCPY,                 MemCpy);
   REGISTER_OP(CACHELINECLEAR,         CacheLineClear);
   REGISTER_OP(CACHELINECLEAN,         CacheLineClean);
   REGISTER_OP(CACHELINEZERO,          CacheLineZero);
@@ -222,6 +222,8 @@ constexpr OpHandlerArray InterpreterOpHandlers = [] {
   REGISTER_OP(VZIP2,                  VZip);
   REGISTER_OP(VUNZIP,                 VUnZip);
   REGISTER_OP(VUNZIP2,                VUnZip);
+  REGISTER_OP(VTRN,                   VTrn);
+  REGISTER_OP(VTRN2,                  VTrn);
   REGISTER_OP(VBSL,                   VBSL);
   REGISTER_OP(VCMPEQ,                 VCMPEQ);
   REGISTER_OP(VCMPEQZ,                VCMPEQZ);
@@ -266,6 +268,8 @@ constexpr OpHandlerArray InterpreterOpHandlers = [] {
   REGISTER_OP(VUABDL,                 VUABDL);
   REGISTER_OP(VTBL1,                  VTBL1);
   REGISTER_OP(VREV64,                 VRev64);
+  REGISTER_OP(VPCMPESTRX,             VPCMPESTRX);
+  REGISTER_OP(VPCMPISTRX,             VPCMPISTRX);
 
   // Encryption ops
   REGISTER_OP(VAESIMC,                AESImc);

External/FEXCore/Source/Interface/Core/Interpreter/InterpreterOps.h

@@ -36,6 +36,8 @@ namespace FEXCore::CPU {
     FABI_I64_F80_F80,
     FABI_F80_F80,
     FABI_F80_F80_F80,
+    FABI_I32_I64_I64_I128_I128_I16,
+    FABI_I32_I128_I128_I16,
   };
 
   struct FallbackInfo {
@@ -142,7 +144,6 @@ namespace FEXCore::CPU {
   DEF_OP(AtomicFetchNeg);
 
   ///< Branch ops
-  DEF_OP(SignalReturn);
   DEF_OP(CallbackReturn);
   DEF_OP(ExitFunction);
   DEF_OP(Jump);
@@ -153,10 +154,12 @@ namespace FEXCore::CPU {
   DEF_OP(ValidateCode);
   DEF_OP(ThreadRemoveCodeEntry);
   DEF_OP(CPUID);
+  DEF_OP(XGETBV);
 
   ///< Conversion ops
   DEF_OP(VInsGPR);
   DEF_OP(VCastFromGPR);
+  DEF_OP(VDupFromGPR);
   DEF_OP(Float_FromGPR_S);
   DEF_OP(Float_FToF);
   DEF_OP(Vector_SToF);
@@ -181,6 +184,10 @@ namespace FEXCore::CPU {
   DEF_OP(StoreFlag);
   DEF_OP(LoadMem);
   DEF_OP(StoreMem);
+  DEF_OP(VLoadVectorMasked);
+  DEF_OP(VStoreVectorMasked);
+  DEF_OP(MemSet);
+  DEF_OP(MemCpy);
   DEF_OP(CacheLineClear);
   DEF_OP(CacheLineClean);
   DEF_OP(CacheLineZero);
@@ -242,6 +249,7 @@ namespace FEXCore::CPU {
   DEF_OP(VSMax);
   DEF_OP(VZip);
   DEF_OP(VUnZip);
+  DEF_OP(VTrn);
   DEF_OP(VBSL);
   DEF_OP(VCMPEQ);
   DEF_OP(VCMPEQZ);
@@ -286,6 +294,8 @@ namespace FEXCore::CPU {
   DEF_OP(VUABDL);
   DEF_OP(VTBL1);
   DEF_OP(VRev64);
+  DEF_OP(VPCMPESTRX);
+  DEF_OP(VPCMPISTRX);
 
   ///< Encryption ops
   DEF_OP(AESImc);

External/FEXCore/Source/Interface/Core/Interpreter/MemoryOps.cpp

@@ -288,6 +288,366 @@ DEF_OP(StoreMem) {
   }
 }
 
+DEF_OP(VLoadVectorMasked) {
+  const auto Op = IROp->C<IR::IROp_VLoadVectorMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto ElementSize = IROp->ElementSize;
+  const auto NumElements = OpSize / ElementSize;
+
+  const auto *MemData = *GetSrc<uint8_t const**>(Data->SSAData, Op->Addr);
+  const auto *Mask = GetSrc<uint8_t const*>(Data->SSAData, Op->Mask);
+
+  const auto SetElements = [NumElements]<typename T>(void* Dst, const T* MaskValues, const T* MemoryData) {
+    const auto SignBit = 1ULL << ((sizeof(T) * 8) - 1);
+    for (size_t i = 0; i < NumElements; i++) {
+      if ((MaskValues[i] & SignBit) != 0) {
+        std::memcpy(static_cast<uint8_t*>(Dst) + (i * sizeof(T)), MemoryData + i, sizeof(T));
+      }
+    }
+  };
+
+  if (!Op->Offset.IsInvalid()) {
+    auto Offset = *GetSrc<uintptr_t const*>(Data->SSAData, Op->Offset) * Op->OffsetScale;
+
+    switch(Op->OffsetType.Val) {
+      case IR::MEM_OFFSET_SXTX.Val: MemData +=  Offset; break;
+      case IR::MEM_OFFSET_UXTW.Val: MemData += (uint32_t)Offset; break;
+      case IR::MEM_OFFSET_SXTW.Val: MemData += (int32_t)Offset; break;
+    }
+  }
+
+  memset(GDP, 0, Core::CPUState::XMM_AVX_REG_SIZE);
+  switch (ElementSize) {
+    case 1: {
+      SetElements(GDP, Mask, MemData);
+      return;
+    }
+    case 2: {
+      SetElements(GDP,
+                  reinterpret_cast<const uint16_t*>(Mask),
+                  reinterpret_cast<const uint16_t*>(MemData));
+      return;
+    }
+    case 4: {
+      SetElements(GDP,
+                  reinterpret_cast<const uint32_t*>(Mask),
+                  reinterpret_cast<const uint32_t*>(MemData));
+      return;
+    }
+    case 8: {
+      SetElements(GDP,
+                  reinterpret_cast<const uint64_t*>(Mask),
+                  reinterpret_cast<const uint64_t*>(MemData));
+      return;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled VLoadVectorMasked element size: {}", ElementSize);
+      return;
+  }
+}
+
+DEF_OP(VStoreVectorMasked) {
+  const auto Op = IROp->C<IR::IROp_VStoreVectorMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto ElementSize = IROp->ElementSize;
+  const auto NumElements = OpSize / ElementSize;
+
+  auto *Dst = *GetSrc<uint8_t**>(Data->SSAData, Op->Addr);
+  const auto *RegData = GetSrc<uint8_t const*>(Data->SSAData, Op->Data);
+  const auto *Mask = GetSrc<uint8_t const*>(Data->SSAData, Op->Mask);
+
+  const auto SetElements = [NumElements]<typename T>(void* Dst, const T* MaskValues, const T* DataVals) {
+    const auto SignBit = 1ULL << ((sizeof(T) * 8) - 1);
+    for (size_t i = 0; i < NumElements; i++) {
+      if ((MaskValues[i] & SignBit) != 0) {
+        std::memcpy(static_cast<uint8_t*>(Dst) + (i * sizeof(T)), DataVals + i, sizeof(T));
+      }
+    }
+  };
+
+  if (!Op->Offset.IsInvalid()) {
+    auto Offset = *GetSrc<uintptr_t const*>(Data->SSAData, Op->Offset) * Op->OffsetScale;
+
+    switch(Op->OffsetType.Val) {
+      case IR::MEM_OFFSET_SXTX.Val: Dst +=  Offset; break;
+      case IR::MEM_OFFSET_UXTW.Val: Dst += (uint32_t)Offset; break;
+      case IR::MEM_OFFSET_SXTW.Val: Dst += (int32_t)Offset; break;
+    }
+  }
+
+  switch (ElementSize) {
+    case 1: {
+      SetElements(Dst, Mask, RegData);
+      return;
+    }
+    case 2: {
+      SetElements(Dst,
+                  reinterpret_cast<const uint16_t*>(Mask),
+                  reinterpret_cast<const uint16_t*>(RegData));
+      return;
+    }
+    case 4: {
+      SetElements(Dst,
+                  reinterpret_cast<const uint32_t*>(Mask),
+                  reinterpret_cast<const uint32_t*>(RegData));
+      return;
+    }
+    case 8: {
+      SetElements(Dst,
+                  reinterpret_cast<const uint64_t*>(Mask),
+                  reinterpret_cast<const uint64_t*>(RegData));
+      return;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled VStoreVectorMasked element size: {}", ElementSize);
+      return;
+  }
+}
+
+DEF_OP(MemSet) {
+  const auto Op = IROp->C<IR::IROp_MemSet>();
+  const int32_t Size = Op->Size;
+
+  char *MemData = *GetSrc<char **>(Data->SSAData, Op->Addr);
+  uint64_t MemPrefix{};
+  if (!Op->Prefix.IsInvalid()) {
+    MemPrefix = *GetSrc<uint64_t*>(Data->SSAData, Op->Prefix);
+  }
+
+  const auto Value = *GetSrc<uint64_t*>(Data->SSAData, Op->Value);
+  const auto Length = *GetSrc<uint64_t*>(Data->SSAData, Op->Length);
+  const auto Direction = *GetSrc<uint8_t*>(Data->SSAData, Op->Direction);
+
+  auto MemSetElements = [](auto* Memory, uint64_t Value, size_t Length) {
+    for (size_t i = 0; i < Length; ++i) {
+      Memory[i] = Value;
+    }
+  };
+
+  auto MemSetElementsInverse = [](auto* Memory, uint64_t Value, size_t Length) {
+    for (size_t i = 0; i < Length; ++i) {
+      Memory[-i] = Value;
+    }
+  };
+
+  if (Direction == 0) { // Forward
+    if (Op->IsAtomic) {
+      switch (Size) {
+        case 1:
+          MemSetElements(reinterpret_cast<std::atomic<uint8_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 2:
+          MemSetElements(reinterpret_cast<std::atomic<uint16_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 4:
+          MemSetElements(reinterpret_cast<std::atomic<uint32_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 8:
+          MemSetElements(reinterpret_cast<std::atomic<uint64_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    else {
+      switch (Size) {
+        case 1:
+          MemSetElements(reinterpret_cast<uint8_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 2:
+          MemSetElements(reinterpret_cast<uint16_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 4:
+          MemSetElements(reinterpret_cast<uint32_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 8:
+          MemSetElements(reinterpret_cast<uint64_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    GD = reinterpret_cast<uint64_t>(MemData + (Length * Size));
+  }
+  else { // Backward
+    if (Op->IsAtomic) {
+      switch (Size) {
+        case 1:
+          MemSetElementsInverse(reinterpret_cast<std::atomic<uint8_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 2:
+          MemSetElementsInverse(reinterpret_cast<std::atomic<uint16_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 4:
+          MemSetElementsInverse(reinterpret_cast<std::atomic<uint32_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 8:
+          MemSetElementsInverse(reinterpret_cast<std::atomic<uint64_t>*>(MemData + MemPrefix), Value, Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    else {
+      switch (Size) {
+        case 1:
+          MemSetElementsInverse(reinterpret_cast<uint8_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 2:
+          MemSetElementsInverse(reinterpret_cast<uint16_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 4:
+          MemSetElementsInverse(reinterpret_cast<uint32_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        case 8:
+          MemSetElementsInverse(reinterpret_cast<uint64_t*>(MemData + MemPrefix), Value, Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    GD = reinterpret_cast<uint64_t>(MemData - (Length * Size));
+  }
+}
+
+DEF_OP(MemCpy) {
+  const auto Op = IROp->C<IR::IROp_MemCpy>();
+  const int32_t Size = Op->Size;
+
+  uint64_t *DstPtr = GetDest<uint64_t*>(Data->SSAData, Node);
+
+  char *MemDataDest = *GetSrc<char **>(Data->SSAData, Op->AddrDest);
+  char *MemDataSrc = *GetSrc<char **>(Data->SSAData, Op->AddrSrc);
+
+  uint64_t DestPrefix{};
+  uint64_t SrcPrefix{};
+  if (!Op->PrefixDest.IsInvalid()) {
+    DestPrefix = *GetSrc<uint64_t*>(Data->SSAData, Op->PrefixDest);
+
+  }
+  if (!Op->PrefixSrc.IsInvalid()) {
+    SrcPrefix = *GetSrc<uint64_t*>(Data->SSAData, Op->PrefixSrc);
+  }
+
+  const auto Length = *GetSrc<uint64_t*>(Data->SSAData, Op->Length);
+  const auto Direction = *GetSrc<uint8_t*>(Data->SSAData, Op->Direction);
+
+  auto MemSetElementsAtomic = [](auto* MemDst, auto* MemSrc, size_t Length) {
+    for (size_t i = 0; i < Length; ++i) {
+      MemDst[i].store(MemSrc[i].load());
+    }
+  };
+
+  auto MemSetElementsAtomicInverse = [](auto* MemDst, auto* MemSrc, size_t Length) {
+    for (size_t i = 0; i < Length; ++i) {
+      MemDst[-i].store(MemSrc[-i].load());
+    }
+  };
+
+  auto MemSetElements = [](auto* MemDst, auto* MemSrc, size_t Length) {
+    for (size_t i = 0; i < Length; ++i) {
+      MemDst[i] = MemSrc[i];
+    }
+  };
+
+  auto MemSetElementsInverse = [](auto* MemDst, auto* MemSrc, size_t Length) {
+    for (size_t i = 0; i < Length; ++i) {
+      MemDst[-i] = MemSrc[-i];
+    }
+  };
+
+  if (Direction == 0) { // Forward
+    if (Op->IsAtomic) {
+      switch (Size) {
+        case 1:
+          MemSetElementsAtomic(reinterpret_cast<std::atomic<uint8_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint8_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 2:
+          MemSetElementsAtomic(reinterpret_cast<std::atomic<uint16_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint16_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 4:
+          MemSetElementsAtomic(reinterpret_cast<std::atomic<uint32_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint32_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 8:
+          MemSetElementsAtomic(reinterpret_cast<std::atomic<uint64_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint64_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    else {
+      switch (Size) {
+        case 1:
+          MemSetElements(reinterpret_cast<uint8_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint8_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 2:
+          MemSetElements(reinterpret_cast<uint16_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint16_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 4:
+          MemSetElements(reinterpret_cast<uint32_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint32_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 8:
+          MemSetElements(reinterpret_cast<uint64_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint64_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    DstPtr[0] = reinterpret_cast<uint64_t>(MemDataDest + (Length * Size));
+    DstPtr[1] = reinterpret_cast<uint64_t>(MemDataSrc + (Length * Size));
+  }
+  else { // Backward
+    if (Op->IsAtomic) {
+      switch (Size) {
+        case 1:
+          MemSetElementsAtomicInverse(reinterpret_cast<std::atomic<uint8_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint8_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 2:
+          MemSetElementsAtomicInverse(reinterpret_cast<std::atomic<uint16_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint16_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 4:
+          MemSetElementsAtomicInverse(reinterpret_cast<std::atomic<uint32_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint32_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 8:
+          MemSetElementsAtomicInverse(reinterpret_cast<std::atomic<uint64_t>*>(MemDataDest + DestPrefix), reinterpret_cast<std::atomic<uint64_t>*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    else {
+      switch (Size) {
+        case 1:
+          MemSetElementsInverse(reinterpret_cast<uint8_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint8_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 2:
+          MemSetElementsInverse(reinterpret_cast<uint16_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint16_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 4:
+          MemSetElementsInverse(reinterpret_cast<uint32_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint32_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        case 8:
+          MemSetElementsInverse(reinterpret_cast<uint64_t*>(MemDataDest + DestPrefix), reinterpret_cast<uint64_t*>(MemDataSrc + SrcPrefix), Length);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+    DstPtr[0] = reinterpret_cast<uint64_t>(MemDataDest - (Length * Size));
+    DstPtr[1] = reinterpret_cast<uint64_t>(MemDataSrc - (Length * Size));
+  }
+}
+
 DEF_OP(CacheLineClear) {
   auto Op = IROp->C<IR::IROp_CacheLineClear>();
 

External/FEXCore/Source/Interface/Core/Interpreter/VectorOps.cpp

@@ -8,6 +8,8 @@ $end_info$
 #include "Interface/Core/Interpreter/InterpreterOps.h"
 #include "Interface/Core/Interpreter/InterpreterDefines.h"
 
+#include "Interface/Core/Interpreter/Fallbacks/VectorFallbacks.h"
+
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Utils/BitUtils.h>
 
@@ -902,6 +904,67 @@ DEF_OP(VZip) {
   memcpy(GDP, Tmp, OpSize);
 }
 
+DEF_OP(VTrn) {
+  const auto Op = IROp->C<IR::IROp_VTrn>();
+  const uint8_t OpSize = IROp->Size;
+
+  void *Src1 = GetSrc<void*>(Data->SSAData, Op->VectorLower);
+  void *Src2 = GetSrc<void*>(Data->SSAData, Op->VectorUpper);
+  uint8_t Tmp[Core::CPUState::XMM_AVX_REG_SIZE]{};
+  const uint8_t ElementSize = Op->Header.ElementSize;
+  uint8_t Elements = OpSize / ElementSize;
+  const uint8_t BaseOffset = IROp->Op == IR::OP_VTRN2 ? 1 : 0;
+  Elements >>= 1;
+
+  switch (ElementSize) {
+    case 1: {
+      auto *Dst_d  = reinterpret_cast<uint8_t*>(Tmp);
+      auto *Src1_d = reinterpret_cast<uint8_t*>(Src1);
+      auto *Src2_d = reinterpret_cast<uint8_t*>(Src2);
+      for (unsigned i = 0; i < Elements; ++i) {
+        Dst_d[i*2] = Src1_d[i*2 + BaseOffset];
+        Dst_d[i*2+1] = Src2_d[i*2 + BaseOffset];
+      }
+      break;
+    }
+    case 2: {
+      auto *Dst_d  = reinterpret_cast<uint16_t*>(Tmp);
+      auto *Src1_d = reinterpret_cast<uint16_t*>(Src1);
+      auto *Src2_d = reinterpret_cast<uint16_t*>(Src2);
+      for (unsigned i = 0; i < Elements; ++i) {
+        Dst_d[i*2] = Src1_d[i*2 + BaseOffset];
+        Dst_d[i*2+1] = Src2_d[i*2 + BaseOffset];
+      }
+      break;
+    }
+    case 4: {
+      auto *Dst_d  = reinterpret_cast<uint32_t*>(Tmp);
+      auto *Src1_d = reinterpret_cast<uint32_t*>(Src1);
+      auto *Src2_d = reinterpret_cast<uint32_t*>(Src2);
+      for (unsigned i = 0; i < Elements; ++i) {
+        Dst_d[i*2] = Src1_d[i*2 + BaseOffset];
+        Dst_d[i*2+1] = Src2_d[i*2 + BaseOffset];
+      }
+      break;
+    }
+    case 8: {
+      auto *Dst_d  = reinterpret_cast<uint64_t*>(Tmp);
+      auto *Src1_d = reinterpret_cast<uint64_t*>(Src1);
+      auto *Src2_d = reinterpret_cast<uint64_t*>(Src2);
+      for (unsigned i = 0; i < Elements; ++i) {
+        Dst_d[i*2] = Src1_d[i*2 + BaseOffset];
+        Dst_d[i*2+1] = Src2_d[i*2 + BaseOffset];
+      }
+      break;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unknown Element Size: {}", ElementSize);
+      break;
+  }
+
+  memcpy(GDP, Tmp, OpSize);
+}
+
 DEF_OP(VUnZip) {
   const auto Op = IROp->C<IR::IROp_VUnZip>();
   const uint8_t OpSize = IROp->Size;
@@ -964,7 +1027,9 @@ DEF_OP(VUnZip) {
 }
 
 DEF_OP(VBSL) {
-  auto Op = IROp->C<IR::IROp_VBSL>();
+  const auto Op = IROp->C<IR::IROp_VBSL>();
+  const auto OpSize = IROp->Size;
+
   const auto Src1 = *GetSrc<InterpVector256*>(Data->SSAData, Op->VectorMask);
   const auto Src2 = *GetSrc<InterpVector256*>(Data->SSAData, Op->VectorTrue);
   const auto Src3 = *GetSrc<InterpVector256*>(Data->SSAData, Op->VectorFalse);
@@ -974,7 +1039,8 @@ DEF_OP(VBSL) {
     .Upper = (Src2.Upper & Src1.Upper) | (Src3.Upper & ~Src1.Upper),
   };
 
-  memcpy(GDP, &Tmp, sizeof(Tmp));
+  memset(GDP, 0, sizeof(InterpVector256));
+  memcpy(GDP, &Tmp, OpSize);
 }
 
 DEF_OP(VCMPEQ) {
@@ -2212,6 +2278,37 @@ DEF_OP(VRev64) {
   memcpy(GDP, Tmp, OpSize);
 }
 
+DEF_OP(VPCMPESTRX) {
+  const auto Op = IROp->C<IR::IROp_VPCMPESTRX>();
+  const auto Is64Bit = Op->GPRSize == 8;
+
+  const auto RAX = *GetSrc<uint64_t*>(Data->SSAData, Op->RAX);
+  const auto RDX = *GetSrc<uint64_t*>(Data->SSAData, Op->RDX);
+  const auto LHS = *GetSrc<__uint128_t*>(Data->SSAData, Op->LHS);
+  const auto RHS = *GetSrc<__uint128_t*>(Data->SSAData, Op->RHS);
+
+  // We can be cheeky and encode the size at bit 8 to save a parameter
+  const auto Control = Op->Control | (uint16_t(Is64Bit) << 8);
+
+  const auto Result = OpHandlers<IR::OP_VPCMPESTRX>::handle(RAX, RDX, LHS, RHS, Control);
+
+  memset(GDP, 0, sizeof(uint64_t));
+  memcpy(GDP, &Result, sizeof(Result));
+}
+
+DEF_OP(VPCMPISTRX) {
+  const auto Op = IROp->C<IR::IROp_VPCMPISTRX>();
+
+  const auto LHS = *GetSrc<__uint128_t*>(Data->SSAData, Op->LHS);
+  const auto RHS = *GetSrc<__uint128_t*>(Data->SSAData, Op->RHS);
+  const auto Control = Op->Control;
+
+  const auto Result = OpHandlers<IR::OP_VPCMPISTRX>::handle(LHS, RHS, Control);
+
+  memset(GDP, 0, sizeof(uint64_t));
+  memcpy(GDP, &Result, sizeof(Result));
+}
+
 #undef DEF_OP
 
 } // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/JIT/Arm64/ALUOps.cpp

@@ -262,13 +262,13 @@ DEF_OP(MulH) {
   const auto Src2 = GetReg(Op->Src2.ID());
 
   if (OpSize == 4) {
-    sxtw(TMP1, Src1);
-    sxtw(TMP2, Src2);
+    sxtw(TMP1, Src1.W());
+    sxtw(TMP2, Src2.W());
     mul(ARMEmitter::Size::i32Bit, Dst, TMP1, TMP2);
     ubfx(ARMEmitter::Size::i32Bit, Dst, Dst, 32, 32);
   }
   else {
-    smulh(Dst, Src1, Src2);
+    smulh(Dst.X(), Src1.X(), Src2.X());
   }
 }
 
@@ -289,7 +289,7 @@ DEF_OP(UMulH) {
     ubfx(ARMEmitter::Size::i64Bit, Dst, Dst, 32, 32);
   }
   else {
-    umulh(Dst, Src1, Src2);
+    umulh(Dst.X(), Src1.X(), Src2.X());
   }
 }
 
@@ -494,7 +494,7 @@ DEF_OP(PDep) {
   // We sadly need to spill regs for this for the time being
   // TODO: Remove when scratch registers can be allocated
   //       explicitly.
-  SpillStaticRegs(false, SpillCode);
+  SpillStaticRegs(TMP1, false, SpillCode);
 
 
   mov(EmitSize, InputReg, Input);
@@ -558,7 +558,7 @@ DEF_OP(PExt) {
   // We sadly need to spill a reg for this for the time being
   // TODO: Remove when scratch registers can be allocated
   //       explicitly.
-  SpillStaticRegs(false, 1U << Mask.Idx());
+  SpillStaticRegs(TMP2, false, 1U << Mask.Idx());
   mov(EmitSize, Mask, ZeroReg);
 
   // Main loop
@@ -610,7 +610,7 @@ DEF_OP(LDiv) {
     case 4: {
       mov(EmitSize, TMP1, Lower);
       bfi(EmitSize, TMP1, Upper, 32, 32);
-      sxtw(TMP2, Divisor);
+      sxtw(TMP2, Divisor.W());
       sdiv(EmitSize, Dst, TMP1, TMP2);
     break;
     }
@@ -744,7 +744,7 @@ DEF_OP(LRem) {
     case 4: {
       mov(EmitSize, TMP1, Lower);
       bfi(EmitSize, TMP1, Upper, 32, 32);
-      sxtw(TMP3, Divisor);
+      sxtw(TMP3, Divisor.W());
       sdiv(EmitSize, TMP2, TMP1, TMP3);
       msub(EmitSize, Dst, TMP2, TMP3, TMP1);
     break;
@@ -1173,8 +1173,8 @@ DEF_OP(VExtractToGPR) {
     // Inverting our dedicated predicate for 128-bit operations selects
     // all of the top lanes. We can then compact those into a temporary.
     const auto CompactPred = ARMEmitter::PReg::p0;
-    not_(CompactPred, PRED_TMP_32B, PRED_TMP_16B);
-    compact(ARMEmitter::SubRegSize::i64Bit, VTMP1, CompactPred, Vector);
+    not_(CompactPred, PRED_TMP_32B.Zeroing(), PRED_TMP_16B);
+    compact(ARMEmitter::SubRegSize::i64Bit, VTMP1.Z(), CompactPred, Vector.Z());
 
     // Sanitize the zero-based index to work on the now-moved
     // upper half of the vector.

External/FEXCore/Source/Interface/Core/JIT/Arm64/Arm64Relocations.cpp

@@ -27,7 +27,7 @@ void Arm64JITCore::InsertNamedThunkRelocation(ARMEmitter::Register Reg, const IR
   MoveABI.NamedThunkMove.Header.Type = FEXCore::CPU::RelocationTypes::RELOC_NAMED_THUNK_MOVE;
   // Offset is the offset from the entrypoint of the block
   auto CurrentCursor = GetCursorAddress<uint8_t *>();
-  MoveABI.NamedThunkMove.Offset = CurrentCursor - GuestEntry;
+  MoveABI.NamedThunkMove.Offset = CurrentCursor - CodeData.BlockBegin;
   MoveABI.NamedThunkMove.Symbol = Sum;
   MoveABI.NamedThunkMove.RegisterIndex = Reg.Idx();
 
@@ -58,7 +58,7 @@ Arm64JITCore::NamedSymbolLiteralPair Arm64JITCore::InsertNamedSymbolLiteral(FEXC
 void Arm64JITCore::PlaceNamedSymbolLiteral(NamedSymbolLiteralPair &Lit) {
   // Offset is the offset from the entrypoint of the block
   auto CurrentCursor = GetCursorAddress<uint8_t *>();
-  Lit.MoveABI.NamedSymbolLiteral.Offset = CurrentCursor - GuestEntry;
+  Lit.MoveABI.NamedSymbolLiteral.Offset = CurrentCursor - CodeData.BlockBegin;
 
   Bind(&Lit.Loc);
   dc64(Lit.Lit);
@@ -70,7 +70,7 @@ void Arm64JITCore::InsertGuestRIPMove(ARMEmitter::Register Reg, uint64_t Constan
   MoveABI.GuestRIPMove.Header.Type = FEXCore::CPU::RelocationTypes::RELOC_GUEST_RIP_MOVE;
   // Offset is the offset from the entrypoint of the block
   auto CurrentCursor = GetCursorAddress<uint8_t *>();
-  MoveABI.GuestRIPMove.Offset = CurrentCursor - GuestEntry;
+  MoveABI.GuestRIPMove.Offset = CurrentCursor - CodeData.BlockBegin;
   MoveABI.GuestRIPMove.GuestRIP = Constant;
   MoveABI.GuestRIPMove.RegisterIndex = Reg.Idx();
 

External/FEXCore/Source/Interface/Core/JIT/Arm64/BranchOps.cpp

@@ -20,26 +20,9 @@ $end_info$
 namespace FEXCore::CPU {
 #define DEF_OP(x) void Arm64JITCore::Op_##x(IR::IROp_Header const *IROp, IR::NodeID Node)
 
-DEF_OP(SignalReturn) {
-  auto Op = IROp->C<IR::IROp_SignalReturn>();
-
-  // First we must reset the stack
-  ResetStack();
-
-  // Now branch to our signal return helper
-  // This can't be a direct branch since the code needs to live at a constant location
-  if (Op->IsRT) {
-    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.SignalReturnHandlerRT));
-  }
-  else {
-    ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.SignalReturnHandler));
-  }
-  br(ARMEmitter::Reg::r0);
-}
-
 DEF_OP(CallbackReturn) {
   // spill back to CTX
-  SpillStaticRegs();
+  SpillStaticRegs(TMP1);
 
   // First we must reset the stack
   ResetStack();
@@ -184,14 +167,23 @@ DEF_OP(Syscall) {
   FEXCore::IR::SyscallFlags Flags = Op->Flags;
   PushDynamicRegsAndLR(TMP1);
 
-  if ((Flags & FEXCore::IR::SyscallFlags::NOSYNCSTATEONENTRY) != FEXCore::IR::SyscallFlags::NOSYNCSTATEONENTRY) {
-    SpillStaticRegs();
-  }
-  else {
+  uint32_t GPRSpillMask = ~0U;
+  uint32_t FPRSpillMask = ~0U;
+  if ((Flags & FEXCore::IR::SyscallFlags::NOSYNCSTATEONENTRY) == FEXCore::IR::SyscallFlags::NOSYNCSTATEONENTRY) {
     // Need to spill all caller saved registers still
-    SpillStaticRegs(true, CALLER_GPR_MASK, CALLER_FPR_MASK);
+    GPRSpillMask = CALLER_GPR_MASK;
+    FPRSpillMask = CALLER_FPR_MASK;
   }
 
+  SpillStaticRegs(TMP1, true, GPRSpillMask, FPRSpillMask);
+
+  // Now that we are spilled, store in the state that we are in a syscall
+  // Still without overwriting registers that matter
+  // 16bit LoadConstant to be a single instruction
+  // This gives the signal handler a value to check to see if we are in a syscall at all
+  LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, GPRSpillMask & 0xFFFF);
+  str(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CpuStateFrame, InSyscallInfo));
+
   uint64_t SPOffset = AlignUp(FEXCore::HLE::SyscallArguments::MAX_ARGS * 8, 16);
   sub(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, SPOffset);
   for (uint32_t i = 0; i < FEXCore::HLE::SyscallArguments::MAX_ARGS; ++i) {
@@ -213,21 +205,22 @@ DEF_OP(Syscall) {
 
   add(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::rsp, ARMEmitter::Reg::rsp, SPOffset);
 
-  if ((Flags & FEXCore::IR::SyscallFlags::NOSYNCSTATEONENTRY) != FEXCore::IR::SyscallFlags::NOSYNCSTATEONENTRY &&
-      (Flags & FEXCore::IR::SyscallFlags::NORETURN) != FEXCore::IR::SyscallFlags::NORETURN) {
-    FillStaticRegs();
-  }
-  else {
+  if ((Flags & FEXCore::IR::SyscallFlags::NORETURN) != FEXCore::IR::SyscallFlags::NORETURN) {
     // Result is now in x0
     // Fix the stack and any values that were stepped on
-    FillStaticRegs(true, CALLER_GPR_MASK, CALLER_FPR_MASK);
-  }
+    FillStaticRegs(true, GPRSpillMask, FPRSpillMask);
 
-  PopDynamicRegsAndLR();
+    // Now the registers we've spilled are back in their original host registers
+    // We can safely claim we are no longer in a syscall
+    str(ARMEmitter::XReg::zr, STATE, offsetof(FEXCore::Core::CpuStateFrame, InSyscallInfo));
 
-  if ((Flags & FEXCore::IR::SyscallFlags::NORETURN) != FEXCore::IR::SyscallFlags::NORETURN) {
-    // Move result to its destination register
-    mov(ARMEmitter::Size::i64Bit, GetReg(Node), ARMEmitter::Reg::r0);
+    PopDynamicRegsAndLR();
+
+    if ((Flags & FEXCore::IR::SyscallFlags::NORETURNEDRESULT) != FEXCore::IR::SyscallFlags::NORETURNEDRESULT) {
+      // Move result to its destination register.
+      // Only if `NORETURNEDRESULT` wasn't set, otherwise we might overwrite the CPUState refilled with `FillStaticRegs`
+      mov(ARMEmitter::Size::i64Bit, GetReg(Node), ARMEmitter::Reg::r0);
+    }
   }
 }
 
@@ -255,9 +248,9 @@ DEF_OP(InlineSyscall) {
     if (Op->Header.Args[i].IsInvalid()) break;
 
     auto Reg = GetReg(Op->Header.Args[i].ID());
-    if (Reg.Idx() == ARMEmitter::Reg::r8.Idx() ||
-        Reg.Idx() == ARMEmitter::Reg::r4.Idx() ||
-        Reg.Idx() == ARMEmitter::Reg::r5.Idx()) {
+    if (Reg == ARMEmitter::Reg::r8 ||
+        Reg == ARMEmitter::Reg::r4 ||
+        Reg == ARMEmitter::Reg::r5) {
 
       SpillMask |= (1U << Reg.Idx());
       Intersects = true;
@@ -267,7 +260,7 @@ DEF_OP(InlineSyscall) {
   // Ordering is incredibly important here
   // We must spill any overlapping registers first THEN claim we are in a syscall without invalidating state at all
   // Only spill the registers that intersect with our usage
-  SpillStaticRegs(false, SpillMask);
+  SpillStaticRegs(TMP1, false, SpillMask);
 
   // Now that we are spilled, store in the state that we are in a syscall
   // Still without overwriting registers that matter
@@ -288,13 +281,13 @@ DEF_OP(InlineSyscall) {
       // In the case of intersection with x4, x5, or x8 then these are currently SRA
       // for registers RAX, RBX, and RSI. Which have just been spilled
       // Just load back from the context. Could be slightly smarter but this is fairly uncommon
-      if (Reg.Idx() == FEXCore::ARMEmitter::Reg::r8.Idx()) {
+      if (Reg == ARMEmitter::Reg::r8) {
         ldr(EmitSubSize, RegArgs[i].R(), STATE, offsetof(FEXCore::Core::CpuStateFrame, State.gregs[X86State::REG_RSI]));
       }
-      else if (Reg.Idx() == FEXCore::ARMEmitter::Reg::r4.Idx()) {
+      else if (Reg == ARMEmitter::Reg::r4) {
         ldr(EmitSubSize, RegArgs[i].R(), STATE, offsetof(FEXCore::Core::CpuStateFrame, State.gregs[X86State::REG_RAX]));
       }
-      else if (Reg.Idx() == FEXCore::ARMEmitter::Reg::r5.Idx()) {
+      else if (Reg == ARMEmitter::Reg::r5) {
         ldr(EmitSubSize, RegArgs[i].R(), STATE, offsetof(FEXCore::Core::CpuStateFrame, State.gregs[X86State::REG_RBX]));
       }
       else {
@@ -335,13 +328,13 @@ DEF_OP(Thunk) {
   // X0: CTX
   // X1: Args (from guest stack)
 
-  SpillStaticRegs(); // spill to ctx before ra64 spill
+  SpillStaticRegs(TMP1); // spill to ctx before ra64 spill
 
   PushDynamicRegsAndLR(TMP1);
 
   mov(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, GetReg(Op->ArgPtr.ID()));
 
-  auto thunkFn = ThreadState->CTX->ThunkHandler->LookupThunk(Op->ThunkNameHash);
+  auto thunkFn = static_cast<Context::ContextImpl*>(ThreadState->CTX)->ThunkHandler->LookupThunk(Op->ThunkNameHash);
   LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r2, (uintptr_t)thunkFn);
 #ifdef VIXL_SIMULATOR
   GenerateIndirectRuntimeCall<void, void*, void*>(ARMEmitter::Reg::r2);
@@ -410,12 +403,12 @@ DEF_OP(ThreadRemoveCodeEntry) {
   // X1: RIP
 
   PushDynamicRegsAndLR(TMP1);
+  SpillStaticRegs(TMP1);
 
   mov(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, STATE.R());
   LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r1, Entry);
 
   ldr(ARMEmitter::XReg::x2, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.ThreadRemoveCodeEntryFromJIT));
-  SpillStaticRegs();
 #ifdef VIXL_SIMULATOR
   GenerateIndirectRuntimeCall<void, void*, void*>(ARMEmitter::Reg::r2);
 #else
@@ -431,7 +424,7 @@ DEF_OP(CPUID) {
   auto Op = IROp->C<IR::IROp_CPUID>();
 
   PushDynamicRegsAndLR(TMP1);
-  SpillStaticRegs();
+  SpillStaticRegs(TMP1);
 
   // x0 = CPUID Handler
   // x1 = CPUID Function
@@ -457,6 +450,34 @@ DEF_OP(CPUID) {
   mov(ARMEmitter::Size::i64Bit, Dst.second, ARMEmitter::Reg::r1);
 }
 
+DEF_OP(XGETBV) {
+  auto Op = IROp->C<IR::IROp_XGetBV>();
+
+  PushDynamicRegsAndLR(TMP1);
+  SpillStaticRegs(TMP1);
+
+  // x0 = CPUID Handler
+  // x1 = XCR Function
+  ldr(ARMEmitter::XReg::x0, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.CPUIDObj));
+  ldr(ARMEmitter::XReg::x2, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.XCRFunction));
+  mov(ARMEmitter::Size::i32Bit, ARMEmitter::Reg::r1, GetReg(Op->Function.ID()));
+#ifdef VIXL_SIMULATOR
+  GenerateIndirectRuntimeCall<uint64_t, void*, uint32_t>(ARMEmitter::Reg::r2);
+#else
+  blr(ARMEmitter::Reg::r2);
+#endif
+
+  FillStaticRegs();
+
+  PopDynamicRegsAndLR();
+
+  // Results are in x0
+  // Results want to be in a i32v2 vector
+  auto Dst = GetRegPair(Node);
+  mov(ARMEmitter::Size::i32Bit, Dst.first,  ARMEmitter::Reg::r0);
+  lsr(ARMEmitter::Size::i64Bit, Dst.second, ARMEmitter::Reg::r0, 32);
+}
+
 #undef DEF_OP
 }
 

External/FEXCore/Source/Interface/Core/JIT/Arm64/ConversionOps.cpp

@@ -55,7 +55,7 @@ DEF_OP(VInsGPR) {
       // Move the upper lane down for the insertion.
       const auto CompactPred = ARMEmitter::PReg::p0;
       not_(CompactPred, PRED_TMP_32B.Zeroing(), PRED_TMP_16B);
-      compact(ARMEmitter::SubRegSize::i64Bit, VTMP1.Z(), CompactPred, DestVector);
+      compact(ARMEmitter::SubRegSize::i64Bit, VTMP1.Z(), CompactPred, DestVector.Z());
     }
 
     // Put data in place for destructive SPLICE below.
@@ -108,6 +108,32 @@ DEF_OP(VCastFromGPR) {
   }
 }
 
+DEF_OP(VDupFromGPR) {
+  const auto Op = IROp->C<IR::IROp_VDupFromGPR>();
+  const auto OpSize = IROp->Size;
+
+  const auto Dst = GetVReg(Node);
+  const auto Src = GetReg(Op->Src.ID());
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto ElementSize = IROp->ElementSize;
+
+  LOGMAN_THROW_AA_FMT(ElementSize == 8 || ElementSize == 4 || ElementSize == 2 || ElementSize == 1,
+                      "Unexpected {} element size: {}", __func__, ElementSize);
+
+  const auto SubEmitSize =
+    ElementSize == 8 ? ARMEmitter::SubRegSize::i64Bit :
+    ElementSize == 4 ? ARMEmitter::SubRegSize::i32Bit :
+    ElementSize == 2 ? ARMEmitter::SubRegSize::i16Bit :
+    ElementSize == 1 ? ARMEmitter::SubRegSize::i8Bit : ARMEmitter::SubRegSize::i8Bit;
+
+  if (HostSupportsSVE && Is256Bit) {
+    dup(SubEmitSize, Dst.Z(), Src);
+  } else {
+    dup(SubEmitSize, Dst.Q(), Src);
+  }
+}
+
 DEF_OP(Float_FromGPR_S) {
   const auto Op = IROp->C<IR::IROp_Float_FromGPR_S>();
 
@@ -199,7 +225,7 @@ DEF_OP(Vector_FToZS) {
   const auto Vector = GetVReg(Op->Vector.ID());
   if (HostSupportsSVE && Is256Bit) {
     const auto Mask = PRED_TMP_32B;
-    fcvtzs(Dst, SubEmitSize, Mask.Merging(), Vector, SubEmitSize);
+    fcvtzs(Dst.Z(), SubEmitSize, Mask.Merging(), Vector.Z(), SubEmitSize);
   } else {
     fcvtzs(SubEmitSize, Dst.Q(), Vector.Q());
   }
@@ -222,8 +248,8 @@ DEF_OP(Vector_FToS) {
 
   if (HostSupportsSVE && Is256Bit) {
     const auto Mask = PRED_TMP_32B;
-    frinti(SubEmitSize, Dst, Mask.Merging(), Vector);
-    fcvtzs(Dst, SubEmitSize, Mask.Merging(), Dst, SubEmitSize);
+    frinti(SubEmitSize, Dst.Z(), Mask.Merging(), Vector.Z());
+    fcvtzs(Dst.Z(), SubEmitSize, Mask.Merging(), Dst.Z(), SubEmitSize);
   } else {
     const auto Dst = GetVReg(Node);
     const auto Vector = GetVReg(Op->Vector.ID());
@@ -276,12 +302,12 @@ DEF_OP(Vector_FToF) {
         break;
       }
       case 0x0204: { // Half <- Float
-        fcvtnt(FEXCore::ARMEmitter::SubRegSize::i16Bit, Dst, Mask, Vector);
+        fcvtnt(FEXCore::ARMEmitter::SubRegSize::i16Bit, Dst.Z(), Mask, Vector.Z());
         uzp2(FEXCore::ARMEmitter::SubRegSize::i16Bit, Dst.Z(), Dst.Z(), Dst.Z());
         break;
       }
       case 0x0408: { // Float <- Double
-        fcvtnt(FEXCore::ARMEmitter::SubRegSize::i32Bit, Dst, Mask, Vector);
+        fcvtnt(FEXCore::ARMEmitter::SubRegSize::i32Bit, Dst.Z(), Mask, Vector.Z());
         uzp2(FEXCore::ARMEmitter::SubRegSize::i32Bit, Dst.Z(), Dst.Z(), Dst.Z());
         break;
       }

External/FEXCore/Source/Interface/Core/JIT/Arm64/EncryptionOps.cpp

@@ -17,37 +17,73 @@ DEF_OP(AESImc) {
 }
 
 DEF_OP(AESEnc) {
-  auto Op = IROp->C<IR::IROp_VAESEnc>();
+  const auto Op = IROp->C<IR::IROp_VAESEnc>();
+  const auto OpSize = IROp->Size;
+
+  const auto Dst = GetVReg(Node);
+  const auto Key = GetVReg(Op->Key.ID());
+  const auto State = GetVReg(Op->State.ID());
+
+  LOGMAN_THROW_AA_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE,
+                      "Currently only supports 128-bit operations.");
+
   eor(VTMP2.Q(), VTMP2.Q(), VTMP2.Q());
-  mov(VTMP1.Q(), GetVReg(Op->State.ID()).Q());
+  mov(VTMP1.Q(), State.Q());
   aese(VTMP1, VTMP2);
   aesmc(VTMP1, VTMP1);
-  eor(GetVReg(Node).Q(), VTMP1.Q(), GetVReg(Op->Key.ID()).Q());
+  eor(Dst.Q(), VTMP1.Q(), Key.Q());
 }
 
 DEF_OP(AESEncLast) {
-  auto Op = IROp->C<IR::IROp_VAESEncLast>();
+  const auto Op = IROp->C<IR::IROp_VAESEncLast>();
+  const auto OpSize = IROp->Size;
+
+  const auto Dst = GetVReg(Node);
+  const auto Key = GetVReg(Op->Key.ID());
+  const auto State = GetVReg(Op->State.ID());
+
+  LOGMAN_THROW_AA_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE,
+                      "Currently only supports 128-bit operations.");
+
   eor(VTMP2.Q(), VTMP2.Q(), VTMP2.Q());
-  mov(VTMP1.Q(), GetVReg(Op->State.ID()).Q());
+  mov(VTMP1.Q(), State.Q());
   aese(VTMP1, VTMP2);
-  eor(GetVReg(Node).Q(), VTMP1.Q(), GetVReg(Op->Key.ID()).Q());
+  eor(Dst.Q(), VTMP1.Q(), Key.Q());
 }
 
 DEF_OP(AESDec) {
-  auto Op = IROp->C<IR::IROp_VAESDec>();
+  const auto Op = IROp->C<IR::IROp_VAESDec>();
+  const auto OpSize = IROp->Size;
+
+  const auto Dst = GetVReg(Node);
+  const auto Key = GetVReg(Op->Key.ID());
+  const auto State = GetVReg(Op->State.ID());
+
+  LOGMAN_THROW_AA_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE,
+                      "Currently only supports 128-bit operations.");
+
   eor(VTMP2.Q(), VTMP2.Q(), VTMP2.Q());
-  mov(VTMP1.Q(), GetVReg(Op->State.ID()).Q());
+  mov(VTMP1.Q(), State.Q());
   aesd(VTMP1, VTMP2);
   aesimc(VTMP1, VTMP1);
-  eor(GetVReg(Node).Q(), VTMP1.Q(), GetVReg(Op->Key.ID()).Q());
+  eor(Dst.Q(), VTMP1.Q(), Key.Q());
 }
 
 DEF_OP(AESDecLast) {
-  auto Op = IROp->C<IR::IROp_VAESDecLast>();
+  const auto Op = IROp->C<IR::IROp_VAESDecLast>();
+  const auto OpSize = IROp->Size;
+
+  const auto Dst = GetVReg(Node);
+  const auto Key = GetVReg(Op->Key.ID());
+  const auto State = GetVReg(Op->State.ID());
+
+  LOGMAN_THROW_AA_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE,
+                      "Currently only supports 128-bit operations.");
+
   eor(VTMP2.Q(), VTMP2.Q(), VTMP2.Q());
-  mov(VTMP1.Q(), GetVReg(Op->State.ID()).Q());
+  mov(VTMP1.Q(), State.Q());
   aesd(VTMP1, VTMP2);
-  eor(GetVReg(Node).Q(), VTMP1.Q(), GetVReg(Op->Key.ID()).Q());
+  eor(Dst.Q(), VTMP1.Q(), Key.Q());
 }
 
 DEF_OP(AESKeyGenAssist) {
@@ -101,18 +137,22 @@ DEF_OP(CRC32) {
       crc32cw(Dst.W(), Src1.W(), Src2.W());
       break;
     case 8:
-      crc32cx(Dst, Src1, Src2);
+      crc32cx(Dst.X(), Src1.X(), Src2.X());
       break;
     default: LOGMAN_MSG_A_FMT("Unknown CRC32 size: {}", Op->SrcSize);
   }
 }
 
 DEF_OP(PCLMUL) {
-  auto Op = IROp->C<IR::IROp_PCLMUL>();
+  const auto Op = IROp->C<IR::IROp_PCLMUL>();
+  const auto OpSize = IROp->Size;
 
-  auto Dst  = GetVReg(Node);
-  auto Src1 = GetVReg(Op->Src1.ID());
-  auto Src2 = GetVReg(Op->Src2.ID());
+  const auto Dst  = GetVReg(Node);
+  const auto Src1 = GetVReg(Op->Src1.ID());
+  const auto Src2 = GetVReg(Op->Src2.ID());
+
+  LOGMAN_THROW_AA_FMT(OpSize == Core::CPUState::XMM_SSE_REG_SIZE,
+                      "Currently only supports 128-bit operations.");
 
   switch (Op->Selector) {
   case 0b00000000:

External/FEXCore/Source/Interface/Core/JIT/Arm64/JIT.cpp

@@ -14,8 +14,6 @@ $end_info$
 #include "Interface/Core/ArchHelpers/CodeEmitter/Emitter.h"
 #include "Interface/Core/LookupCache.h"
 
-#include "Interface/Core/ArchHelpers/Arm64.h"
-#include "Interface/Core/ArchHelpers/MContext.h"
 #include "Interface/Core/Dispatcher/Arm64Dispatcher.h"
 #include "Interface/Core/JIT/Arm64/JITClass.h"
 #include "Interface/Core/InternalThreadState.h"
@@ -25,7 +23,6 @@ $end_info$
 #include "Utils/MemberFunctionToPointer.h"
 
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Core/UContext.h>
 #include <FEXCore/Utils/Allocator.h>
 #include <FEXCore/Utils/CompilerDefs.h>
 #include <FEXCore/Utils/EnumUtils.h>
@@ -33,7 +30,6 @@ $end_info$
 
 #include "Interface/Core/Interpreter/InterpreterOps.h"
 
-#include <sys/mman.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
@@ -87,7 +83,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
   } else {
     switch(Info.ABI) {
       case FABI_VOID_U16:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -107,7 +103,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_F80_F32:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
         const auto Src1 = GetVReg(IROp->Args[0].ID());
@@ -131,7 +127,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_F80_F64:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -157,7 +153,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
 
       case FABI_F80_I16:
       case FABI_F80_I32: {
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -187,7 +183,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_F32_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -213,7 +209,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_F64_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -239,7 +235,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_F64_F64: {
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -263,7 +259,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_F64_F64_F64: {
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -289,7 +285,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       break;
 
       case FABI_I16_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -314,7 +310,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       }
       break;
       case FABI_I32_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -339,7 +335,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       }
       break;
       case FABI_I64_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -364,7 +360,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       }
       break;
       case FABI_I64_F80_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -392,7 +388,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       }
       break;
       case FABI_F80_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -419,7 +415,7 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
       }
       break;
       case FABI_F80_F80_F80:{
-        SpillStaticRegs();
+        SpillStaticRegs(TMP1);
 
         PushDynamicRegsAndLR(TMP1);
 
@@ -449,6 +445,78 @@ void Arm64JITCore::Op_Unhandled(IR::IROp_Header const *IROp, IR::NodeID Node) {
         ins(ARMEmitter::SubRegSize::i16Bit, Dst, 4, ARMEmitter::Reg::r1);
       }
       break;
+      case FABI_I32_I64_I64_I128_I128_I16: {
+        SpillStaticRegs(TMP1);
+        PushDynamicRegsAndLR(TMP1);
+
+        const auto Op = IROp->C<IR::IROp_VPCMPESTRX>();
+        const auto Is64Bit = Op->GPRSize == 8;
+
+        const auto Src1 = GetVReg(Op->LHS.ID());
+        const auto Src2 = GetVReg(Op->RHS.ID());
+        const auto SrcRAX = GetReg(Op->RAX.ID());
+        const auto SrcRDX = GetReg(Op->RDX.ID());
+
+        // We can be cheeky and encode the size at bit 8 to save a parameter
+        const auto Control = Op->Control | (uint16_t(Is64Bit) << 8);
+
+        mov(ARMEmitter::XReg::x0, SrcRAX.X());
+        mov(ARMEmitter::XReg::x1, SrcRDX.X());
+
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r2, Src1, 0);
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r3, Src1, 1);
+
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r4, Src2, 0);
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r5, Src2, 1);
+
+        movz(ARMEmitter::Size::i32Bit, ARMEmitter::Reg::r6, Control);
+
+        ldr(ARMEmitter::XReg::x7, STATE_PTR(CpuStateFrame, Pointers.Common.FallbackHandlerPointers[Info.HandlerIndex]));
+#ifdef VIXL_SIMULATOR
+        GenerateIndirectRuntimeCall<uint32_t, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t, uint16_t>(ARMEmitter::Reg::r7);
+#else
+        blr(ARMEmitter::Reg::r7);
+#endif
+
+        PopDynamicRegsAndLR();
+        FillStaticRegs();
+
+        const auto Dst = GetReg(Node);
+        mov(Dst.W(), ARMEmitter::WReg::w0);
+        break;
+      }
+      case FABI_I32_I128_I128_I16: {
+        SpillStaticRegs(TMP1);
+        PushDynamicRegsAndLR(TMP1);
+
+        const auto Op = IROp->C<IR::IROp_VPCMPISTRX>();
+
+        const auto Src1 = GetVReg(Op->LHS.ID());
+        const auto Src2 = GetVReg(Op->RHS.ID());
+        const auto Control = Op->Control;
+
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r0, Src1, 0);
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r1, Src1, 1);
+
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r2, Src2, 0);
+        umov<ARMEmitter::SubRegSize::i64Bit>(ARMEmitter::Reg::r3, Src2, 1);
+
+        movz(ARMEmitter::Size::i32Bit, ARMEmitter::Reg::r4, Control);
+
+        ldr(ARMEmitter::XReg::x5, STATE_PTR(CpuStateFrame, Pointers.Common.FallbackHandlerPointers[Info.HandlerIndex]));
+#ifdef VIXL_SIMULATOR
+        GenerateIndirectRuntimeCall<uint32_t, uint64_t, uint64_t, uint64_t, uint64_t, uint16_t>(ARMEmitter::Reg::r5);
+#else
+        blr(ARMEmitter::Reg::r5);
+#endif
+
+        PopDynamicRegsAndLR();
+        FillStaticRegs();
+
+        const auto Dst = GetReg(Node);
+        mov(Dst.W(), ARMEmitter::WReg::w0);
+        break;
+      }
       case FABI_UNKNOWN:
       default:
 #if defined(ASSERTIONS_ENABLED) && ASSERTIONS_ENABLED
@@ -484,7 +552,7 @@ static uint64_t Arm64JITCore_ExitFunctionLink(FEXCore::Core::CpuStateFrame *Fram
     FEXCore::ARMEmitter::Emitter::ClearICache((void*)branch, 24);
 
     // Add de-linking handler
-    Context::Context::ThreadAddBlockLink(Thread, GuestRip, (uintptr_t)record, [branch, LinkerAddress]{
+    Context::ContextImpl::ThreadAddBlockLink(Thread, GuestRip, (uintptr_t)record, [branch, LinkerAddress]{
       FEXCore::ARMEmitter::Emitter emit((uint8_t*)(branch), 24);
       FEXCore::ARMEmitter::ForwardLabel l_BranchHost;
       emit.ldr(FEXCore::ARMEmitter::XReg::x0, &l_BranchHost);
@@ -498,7 +566,7 @@ static uint64_t Arm64JITCore_ExitFunctionLink(FEXCore::Core::CpuStateFrame *Fram
     record[0] = HostCode;
 
     // Add de-linking handler
-    Context::Context::ThreadAddBlockLink(Thread, GuestRip, (uintptr_t)record, [record, LinkerAddress]{
+    Context::ContextImpl::ThreadAddBlockLink(Thread, GuestRip, (uintptr_t)record, [record, LinkerAddress]{
       record[0] = LinkerAddress;
     });
   }
@@ -509,7 +577,7 @@ static uint64_t Arm64JITCore_ExitFunctionLink(FEXCore::Core::CpuStateFrame *Fram
 void Arm64JITCore::Op_NoOp(IR::IROp_Header const *IROp, IR::NodeID Node) {
 }
 
-Arm64JITCore::Arm64JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalThreadState *Thread)
+Arm64JITCore::Arm64JITCore(FEXCore::Context::ContextImpl *ctx, FEXCore::Core::InternalThreadState *Thread)
   : CPUBackend(Thread, INITIAL_CODE_SIZE, MAX_CODE_SIZE)
   , Arm64Emitter(ctx, 0)
   , HostSupportsSVE{ctx->HostFeatures.SupportsAVX}
@@ -517,20 +585,16 @@ Arm64JITCore::Arm64JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::Intern
 
   RAPass = Thread->PassManager->GetPass<IR::RegisterAllocationPass>("RA");
 
-  uint32_t NumUsedGPRs = NumGPRs;
-  uint32_t NumUsedGPRPairs = NumGPRPairs;
-  uint32_t UsedRegisterCount = RegisterCount;
+  RAPass->AllocateRegisterSet(RegisterClasses);
 
-  RAPass->AllocateRegisterSet(UsedRegisterCount, RegisterClasses);
-
-  RAPass->AddRegisters(FEXCore::IR::GPRClass, NumUsedGPRs);
-  RAPass->AddRegisters(FEXCore::IR::GPRFixedClass, SRA64.size());
-  RAPass->AddRegisters(FEXCore::IR::FPRClass, NumFPRs);
-  RAPass->AddRegisters(FEXCore::IR::FPRFixedClass, SRAFPR.size()  );
-  RAPass->AddRegisters(FEXCore::IR::GPRPairClass, NumUsedGPRPairs);
+  RAPass->AddRegisters(FEXCore::IR::GPRClass, ConfiguredGPRs);
+  RAPass->AddRegisters(FEXCore::IR::GPRFixedClass, ConfiguredSRAGPRs);
+  RAPass->AddRegisters(FEXCore::IR::FPRClass, ConfiguredFPRs);
+  RAPass->AddRegisters(FEXCore::IR::FPRFixedClass, ConfiguredSRAFPRs);
+  RAPass->AddRegisters(FEXCore::IR::GPRPairClass, ConfiguredGPRPairs);
   RAPass->AddRegisters(FEXCore::IR::ComplexClass, 1);
 
-  for (uint32_t i = 0; i < NumUsedGPRPairs; ++i) {
+  for (uint32_t i = 0; i < ConfiguredGPRPairs; ++i) {
     RAPass->AddRegisterConflict(FEXCore::IR::GPRClass, i * 2,     FEXCore::IR::GPRPairClass, i);
     RAPass->AddRegisterConflict(FEXCore::IR::GPRClass, i * 2 + 1, FEXCore::IR::GPRPairClass, i);
   }
@@ -543,7 +607,7 @@ Arm64JITCore::Arm64JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::Intern
 
     Common.PrintValue = reinterpret_cast<uint64_t>(PrintValue);
     Common.PrintVectorValue = reinterpret_cast<uint64_t>(PrintVectorValue);
-    Common.ThreadRemoveCodeEntryFromJIT = reinterpret_cast<uintptr_t>(&Context::Context::ThreadRemoveCodeEntryFromJit);
+    Common.ThreadRemoveCodeEntryFromJIT = reinterpret_cast<uintptr_t>(&Context::ContextImpl::ThreadRemoveCodeEntryFromJit);
     Common.CPUIDObj = reinterpret_cast<uint64_t>(&CTX->CPUID);
 
     {
@@ -551,9 +615,14 @@ Arm64JITCore::Arm64JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::Intern
       Common.CPUIDFunction = PMF.GetConvertedPointer();
     }
 
+    {
+      FEXCore::Utils::MemberFunctionToPointerCast PMF(&FEXCore::CPUIDEmu::RunXCRFunction);
+      Common.XCRFunction = PMF.GetConvertedPointer();
+    }
+
     Common.SyscallHandlerObj = reinterpret_cast<uint64_t>(CTX->SyscallHandler);
     Common.SyscallHandlerFunc = reinterpret_cast<uint64_t>(FEXCore::Context::HandleSyscall);
-    Common.ExitFunctionLink = reinterpret_cast<uintptr_t>(&Context::Context::ThreadExitFunctionLink<Arm64JITCore_ExitFunctionLink>);
+    Common.ExitFunctionLink = reinterpret_cast<uintptr_t>(&Context::ContextImpl::ThreadExitFunctionLink<Arm64JITCore_ExitFunctionLink>);
 
 
     // Fill in the fallback handlers
@@ -570,23 +639,25 @@ Arm64JITCore::Arm64JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::Intern
 
   // Must be done after Dispatcher init
   ClearCache();
-}
 
-void Arm64JITCore::InitializeSignalHandlers(FEXCore::Context::Context *CTX) {
-  CTX->SignalDelegation->RegisterHostSignalHandler(SIGILL, [](FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext) -> bool {
-    return Thread->CTX->Dispatcher->HandleSIGILL(Thread, Signal, info, ucontext);
-  }, true);
+  // Setup dynamic dispatch.
+  if (CTX->Dispatcher->GetConfig().StaticRegisterAllocation) {
+    RT_LoadRegister = &Arm64JITCore::Op_LoadRegisterSRA;
+    RT_StoreRegister = &Arm64JITCore::Op_StoreRegisterSRA;
+  }
+  else {
+    RT_LoadRegister = &Arm64JITCore::Op_LoadRegister;
+    RT_StoreRegister = &Arm64JITCore::Op_StoreRegister;
+  }
 
-#ifdef _M_ARM_64
-  CTX->SignalDelegation->RegisterHostSignalHandler(SIGBUS, [](FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext) -> bool {
-    if (!Thread->CPUBackend->IsAddressInCodeBuffer(ArchHelpers::Context::GetPc(ucontext))) {
-      // Wasn't a sigbus in JIT code
-      return false;
-    }
-
-    return FEXCore::ArchHelpers::Arm64::HandleSIGBUS(Thread->CTX->Config.ParanoidTSO(), Signal, info, ucontext);
-  }, true);
-#endif
+  if (ParanoidTSO()) {
+    RT_LoadMemTSO = &Arm64JITCore::Op_ParanoidLoadMemTSO;
+    RT_StoreMemTSO = &Arm64JITCore::Op_ParanoidStoreMemTSO;
+  }
+  else {
+    RT_LoadMemTSO = &Arm64JITCore::Op_LoadMemTSO;
+    RT_StoreMemTSO = &Arm64JITCore::Op_StoreMemTSO;
+  }
 }
 
 void Arm64JITCore::EmitDetectionString() {
@@ -656,7 +727,7 @@ bool Arm64JITCore::IsGPR(IR::NodeID Node) const {
   return Class == IR::GPRClass || Class == IR::GPRFixedClass;
 }
 
-void *Arm64JITCore::CompileCode(uint64_t Entry,
+CPUBackend::CompiledCode Arm64JITCore::CompileCode(uint64_t Entry,
                                 FEXCore::IR::IRListView const *IR,
                                 FEXCore::Core::DebugData *DebugData,
                                 FEXCore::IR::RegisterAllocationData *RAData,
@@ -669,6 +740,21 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
   this->Entry = Entry;
   this->RAData = RAData;
   this->DebugData = DebugData;
+  this->IR = IR;
+
+  // Fairly excessive buffer range to make sure we don't overflow
+  uint32_t BufferRange = SSACount * 16 + GDBEnabled * Dispatcher::MaxGDBPauseCheckSize;
+  if ((GetCursorOffset() + BufferRange) > CurrentCodeBuffer->Size) {
+    CTX->ClearCodeCache(ThreadState);
+  }
+
+  CodeData.BlockBegin = GetCursorAddress<uint8_t*>();
+
+  // Put the code header at the start of the data block.
+  ARMEmitter::BackwardLabel JITCodeHeaderLabel{};
+  Bind(&JITCodeHeaderLabel);
+  JITCodeHeader *CodeHeader = GetCursorAddress<JITCodeHeader *>();
+  CursorIncrement(sizeof(JITCodeHeader));
 
 #ifdef VIXL_DISASSEMBLER
   const auto DisasmBegin = GetCursorAddress<const vixl::aarch64::Instruction*>();
@@ -678,14 +764,6 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
   LoadConstant(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, Entry);
 #endif
 
-  this->IR = IR;
-
-  // Fairly excessive buffer range to make sure we don't overflow
-  uint32_t BufferRange = SSACount * 16 + GDBEnabled * Dispatcher::MaxGDBPauseCheckSize;
-  if ((GetCursorOffset() + BufferRange) > CurrentCodeBuffer->Size) {
-    CTX->ClearCodeCache(ThreadState);
-  }
-
   // AAPCS64
   // r30      = LR
   // r29      = FP
@@ -706,10 +784,15 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
   // X1-X3 = Temp
   // X4-r18 = RA
 
-  GuestEntry = GetCursorAddress<uint8_t *>();
+  CodeData.BlockEntry = GetCursorAddress<uint8_t*>();
+
+  // Get the address of the JITCodeHeader and store in to the core state.
+  // Two instruction cost, each 1 cycle.
+  adr(TMP1, &JITCodeHeaderLabel);
+  str(TMP1, STATE, offsetof(FEXCore::Core::CPUState, InlineJITBlockHeader));
 
   if (GDBEnabled) {
-    auto GDBSize = CTX->Dispatcher->GenerateGDBPauseCheck(GuestEntry, Entry);
+    auto GDBSize = CTX->Dispatcher->GenerateGDBPauseCheck(CodeData.BlockEntry, Entry);
     CursorIncrement(GDBSize);
   }
 
@@ -755,6 +838,7 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
     for (auto [CodeNode, IROp] : IR->GetCode(BlockNode)) {
       const auto ID = IR->GetID(CodeNode);
       switch (IROp->Op) {
+#define REGISTER_OP_RT(op, x) case FEXCore::IR::IROps::OP_##op: std::invoke(RT_##x, this, IROp, ID); break
 #define REGISTER_OP(op, x) case FEXCore::IR::IROps::OP_##op: Op_##x(IROp, ID); break
         // ALU ops
         REGISTER_OP(TRUNCELEMENTPAIR,  TruncElementPair);
@@ -822,7 +906,6 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
         REGISTER_OP(ATOMICFETCHNEG, AtomicFetchNeg);
 
         // Branch ops
-        REGISTER_OP(SIGNALRETURN,      SignalReturn);
         REGISTER_OP(CALLBACKRETURN,    CallbackReturn);
         REGISTER_OP(EXITFUNCTION,      ExitFunction);
         REGISTER_OP(JUMP,              Jump);
@@ -833,10 +916,12 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
         REGISTER_OP(VALIDATECODE,      ValidateCode);
         REGISTER_OP(THREADREMOVECODEENTRY,   ThreadRemoveCodeEntry);
         REGISTER_OP(CPUID,             CPUID);
+        REGISTER_OP(XGETBV,            XGETBV);
 
         // Conversion ops
         REGISTER_OP(VINSGPR,         VInsGPR);
         REGISTER_OP(VCASTFROMGPR,    VCastFromGPR);
+        REGISTER_OP(VDUPFROMGPR,     VDupFromGPR);
         REGISTER_OP(FLOAT_FROMGPR_S, Float_FromGPR_S);
         REGISTER_OP(FLOAT_FTOF,      Float_FToF);
         REGISTER_OP(VECTOR_STOF,     Vector_SToF);
@@ -861,8 +946,8 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
         // Memory ops
         REGISTER_OP(LOADCONTEXT,         LoadContext);
         REGISTER_OP(STORECONTEXT,        StoreContext);
-        REGISTER_OP(LOADREGISTER,        LoadRegister);
-        REGISTER_OP(STOREREGISTER,       StoreRegister);
+        REGISTER_OP_RT(LOADREGISTER,     LoadRegister);
+        REGISTER_OP_RT(STOREREGISTER,    StoreRegister);
         REGISTER_OP(LOADCONTEXTINDEXED,  LoadContextIndexed);
         REGISTER_OP(STORECONTEXTINDEXED, StoreContextIndexed);
         REGISTER_OP(SPILLREGISTER,       SpillRegister);
@@ -871,22 +956,13 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
         REGISTER_OP(STOREFLAG,           StoreFlag);
         REGISTER_OP(LOADMEM,             LoadMem);
         REGISTER_OP(STOREMEM,            StoreMem);
-        case FEXCore::IR::IROps::OP_LOADMEMTSO:
-          if (ParanoidTSO()) {
-            Op_ParanoidLoadMemTSO(IROp, ID);
-          }
-          else {
-            Op_LoadMemTSO(IROp, ID);
-          }
-          break;
-        case FEXCore::IR::IROps::OP_STOREMEMTSO:
-          if (ParanoidTSO()) {
-            Op_ParanoidStoreMemTSO(IROp, ID);
-          }
-          else {
-            Op_StoreMemTSO(IROp, ID);
-          }
-          break;
+        REGISTER_OP_RT(LOADMEMTSO,       LoadMemTSO);
+        REGISTER_OP_RT(STOREMEMTSO,      StoreMemTSO);
+        REGISTER_OP(VLOADVECTORMASKED,   VLoadVectorMasked);
+        REGISTER_OP(VSTOREVECTORMASKED,  VStoreVectorMasked);
+
+        REGISTER_OP(MEMSET,              MemSet);
+        REGISTER_OP(MEMCPY,              MemCpy);
         REGISTER_OP(CACHELINECLEAR,      CacheLineClear);
         REGISTER_OP(CACHELINECLEAN,      CacheLineClean);
         REGISTER_OP(CACHELINEZERO,       CacheLineZero);
@@ -955,6 +1031,8 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
         REGISTER_OP(VZIP2,             VZip2);
         REGISTER_OP(VUNZIP,            VUnZip);
         REGISTER_OP(VUNZIP2,           VUnZip2);
+        REGISTER_OP(VTRN,              VTrn);
+        REGISTER_OP(VTRN2,             VTrn2);
         REGISTER_OP(VBSL,              VBSL);
         REGISTER_OP(VCMPEQ,            VCMPEQ);
         REGISTER_OP(VCMPEQZ,           VCMPEQZ);
@@ -1009,7 +1087,7 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
 
     if (DebugData) {
       DebugData->Subblocks.push_back({
-        static_cast<uint32_t>(BlockStartHostCode - GuestEntry),
+        static_cast<uint32_t>(BlockStartHostCode - CodeData.BlockEntry),
         static_cast<uint32_t>(GetCursorAddress<uint8_t *>() - BlockStartHostCode)
       });
     }
@@ -1022,8 +1100,24 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
   }
   PendingTargetLabel = nullptr;
 
-  auto CodeEnd = GetCursorAddress<uint8_t *>();
-  ClearICache(GuestEntry, CodeEnd - GuestEntry);
+  // Add the JitCodeTail
+  auto JITBlockTailLocation = GetCursorAddress<uint8_t *>();
+  auto JITBlockTail = GetCursorAddress<JITCodeTail*>();
+  CursorIncrement(sizeof(JITCodeTail));
+
+  // Put the block's RIP entry in the tail.
+  // This will be used for RIP reconstruction in the future.
+  // TODO: This needs to be a data RIP relocation once code caching works.
+  //   Current relocation code doesn't support this feature yet.
+  JITBlockTail->RIP = Entry;
+
+  CodeHeader->OffsetToBlockTail = JITBlockTailLocation - CodeData.BlockBegin;
+
+  CodeData.Size = GetCursorAddress<uint8_t *>() - CodeData.BlockBegin;
+
+  JITBlockTail->Size = CodeData.Size;
+
+  ClearICache(CodeData.BlockBegin, CodeData.Size);
 
 #ifdef VIXL_DISASSEMBLER
   const auto DisasmEnd = GetCursorAddress<const vixl::aarch64::Instruction*>();
@@ -1031,13 +1125,13 @@ void *Arm64JITCore::CompileCode(uint64_t Entry,
 #endif
 
   if (DebugData) {
-    DebugData->HostCodeSize = CodeEnd - GuestEntry;
+    DebugData->HostCodeSize = CodeData.Size;
     DebugData->Relocations = &Relocations;
   }
 
   this->IR = nullptr;
 
-  return GuestEntry;
+  return CodeData;
 }
 
 void Arm64JITCore::ResetStack() {
@@ -1056,12 +1150,8 @@ void Arm64JITCore::ResetStack() {
   }
 }
 
-std::unique_ptr<CPUBackend> CreateArm64JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalThreadState *Thread) {
-  return std::make_unique<Arm64JITCore>(ctx, Thread);
-}
-
-void InitializeArm64JITSignalHandlers(FEXCore::Context::Context *CTX) {
-  Arm64JITCore::InitializeSignalHandlers(CTX);
+fextl::unique_ptr<CPUBackend> CreateArm64JITCore(FEXCore::Context::ContextImpl *ctx, FEXCore::Core::InternalThreadState *Thread) {
+  return fextl::make_unique<Arm64JITCore>(ctx, Thread);
 }
 
 CPUBackendFeatures GetArm64JITBackendFeatures() {

External/FEXCore/Source/Interface/Core/JIT/Arm64/JITClass.h

@@ -6,7 +6,6 @@ $end_info$
 
 #pragma once
 
-#include <FEXCore/IR/RegisterAllocationData.h>
 #include "Interface/Core/ArchHelpers/Arm64Emitter.h"
 #include "Interface/Core/ArchHelpers/CodeEmitter/Emitter.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
@@ -14,15 +13,18 @@ $end_info$
 #include <aarch64/assembler-aarch64.h>
 #include <aarch64/disasm-aarch64.h>
 
+#include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/IR/IntrusiveIRList.h>
+#include <FEXCore/IR/RegisterAllocationData.h>
+#include <FEXCore/fextl/map.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/vector.h>
 
 #include <array>
 #include <cstdint>
-#include <map>
 #include <utility>
-#include <vector>
 
 namespace FEXCore::Core {
   struct InternalThreadState;
@@ -31,13 +33,13 @@ namespace FEXCore::Core {
 namespace FEXCore::CPU {
 class Arm64JITCore final : public CPUBackend, public Arm64Emitter  {
 public:
-  explicit Arm64JITCore(FEXCore::Context::Context *ctx,
+  explicit Arm64JITCore(FEXCore::Context::ContextImpl *ctx,
                         FEXCore::Core::InternalThreadState *Thread);
   ~Arm64JITCore() override;
 
-  [[nodiscard]] std::string GetName() override { return "JIT"; }
+  [[nodiscard]] fextl::string GetName() override { return "JIT"; }
 
-  [[nodiscard]] void *CompileCode(uint64_t Entry,
+  [[nodiscard]] CPUBackend::CompiledCode CompileCode(uint64_t Entry,
                                   FEXCore::IR::IRListView const *IR,
                                   FEXCore::Core::DebugData *DebugData,
                                   FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) override;
@@ -48,8 +50,6 @@ public:
 
   void ClearCache() override;
 
-  static void InitializeSignalHandlers(FEXCore::Context::Context *CTX);
-
   void ClearRelocations() override { Relocations.clear(); }
 
 private:
@@ -57,32 +57,12 @@ private:
   const bool HostSupportsSVE{};
 
   ARMEmitter::BiDirectionalLabel *PendingTargetLabel;
-  FEXCore::Context::Context *CTX;
+  FEXCore::Context::ContextImpl *CTX;
   FEXCore::IR::IRListView const *IR;
   uint64_t Entry;
+  CPUBackend::CompiledCode CodeData{};
 
-  std::map<IR::NodeID, ARMEmitter::BiDirectionalLabel> JumpTargets;
-
-  /**
-   * @name Register Allocation
-   * @{ */
-  constexpr static uint32_t NumGPRs = RA64.size();
-  constexpr static uint32_t NumFPRs = RAFPR.size();
-  constexpr static uint32_t NumGPRPairs = RA64Pair.size();
-  constexpr static uint32_t NumCalleeGPRs = 10;
-  constexpr static uint32_t NumCalleeGPRPairs = 5;
-  constexpr static uint32_t RegisterCount = NumGPRs + NumFPRs + NumGPRPairs;
-  constexpr static uint32_t RegisterClasses = 6;
-
-  constexpr static uint64_t GPRBase = (0ULL << 32);
-  constexpr static uint64_t FPRBase = (1ULL << 32);
-  constexpr static uint64_t GPRPairBase = (2ULL << 32);
-
-  /**  @} */
-
-  constexpr static uint8_t RA_32 = 0;
-  constexpr static uint8_t RA_64 = 1;
-  constexpr static uint8_t RA_FPR = 2;
+  fextl::map<IR::NodeID, ARMEmitter::BiDirectionalLabel> JumpTargets;
 
   [[nodiscard]] FEXCore::ARMEmitter::Register GetReg(IR::NodeID Node) const {
     const auto Reg = GetPhys(Node);
@@ -222,7 +202,7 @@ private:
      */
     void PlaceNamedSymbolLiteral(NamedSymbolLiteralPair &Lit);
 
-    std::vector<FEXCore::CPU::Relocation> Relocations;
+    fextl::vector<FEXCore::CPU::Relocation> Relocations;
 
     ///< Relocation code loading
     bool ApplyRelocations(uint64_t GuestEntry, uint64_t CodeEntry, uint64_t CursorEntry, size_t NumRelocations, const char* EntryRelocations);
@@ -230,10 +210,15 @@ private:
   /**  @} */
 
   uint32_t SpillSlots{};
-  /**
-  * @brief Current guest RIP entrypoint
-  */
-  uint8_t *GuestEntry{};
+  using OpType = void (Arm64JITCore::*)(IR::IROp_Header const *IROp, IR::NodeID Node);
+
+  // Runtime selection;
+  // Load and store register style.
+  OpType RT_LoadRegister;
+  OpType RT_StoreRegister;
+  // Load and store TSO memory style
+  OpType RT_LoadMemTSO;
+  OpType RT_StoreMemTSO;
 
 #define DEF_OP(x) void Op_##x(IR::IROp_Header const *IROp, IR::NodeID Node)
 
@@ -312,7 +297,6 @@ private:
   DEF_OP(AtomicFetchNeg);
 
   ///< Branch ops
-  DEF_OP(SignalReturn);
   DEF_OP(CallbackReturn);
   DEF_OP(ExitFunction);
   DEF_OP(Jump);
@@ -323,10 +307,12 @@ private:
   DEF_OP(ValidateCode);
   DEF_OP(ThreadRemoveCodeEntry);
   DEF_OP(CPUID);
+  DEF_OP(XGETBV);
 
   ///< Conversion ops
   DEF_OP(VInsGPR);
   DEF_OP(VCastFromGPR);
+  DEF_OP(VDupFromGPR);
   DEF_OP(Float_FromGPR_S);
   DEF_OP(Float_FToF);
   DEF_OP(Vector_SToF);
@@ -343,6 +329,8 @@ private:
   DEF_OP(StoreContext);
   DEF_OP(LoadRegister);
   DEF_OP(StoreRegister);
+  DEF_OP(LoadRegisterSRA);
+  DEF_OP(StoreRegisterSRA);
   DEF_OP(LoadContextIndexed);
   DEF_OP(StoreContextIndexed);
   DEF_OP(SpillRegister);
@@ -353,6 +341,10 @@ private:
   DEF_OP(StoreMem);
   DEF_OP(LoadMemTSO);
   DEF_OP(StoreMemTSO);
+  DEF_OP(VLoadVectorMasked);
+  DEF_OP(VStoreVectorMasked);
+  DEF_OP(MemSet);
+  DEF_OP(MemCpy);
   DEF_OP(ParanoidLoadMemTSO);
   DEF_OP(ParanoidStoreMemTSO);
   DEF_OP(CacheLineClear);
@@ -417,6 +409,8 @@ private:
   DEF_OP(VZip2);
   DEF_OP(VUnZip);
   DEF_OP(VUnZip2);
+  DEF_OP(VTrn);
+  DEF_OP(VTrn2);
   DEF_OP(VBSL);
   DEF_OP(VCMPEQ);
   DEF_OP(VCMPEQZ);

External/FEXCore/Source/Interface/Core/JIT/Arm64/MemoryOps.cpp

@@ -128,6 +128,170 @@ DEF_OP(LoadRegister) {
   const auto Op = IROp->C<IR::IROp_LoadRegister>();
   const auto OpSize = IROp->Size;
 
+  if (Op->Class == IR::GPRClass) {
+    [[maybe_unused]] const auto regId = (Op->Offset / Core::CPUState::GPR_REG_SIZE) - 1;
+    const auto regOffs = Op->Offset & 7;
+
+    LOGMAN_THROW_A_FMT(regId < SRA64.size(), "out of range regId");
+
+    switch (OpSize) {
+      case 1:
+        LOGMAN_THROW_AA_FMT(regOffs == 0 || regOffs == 1, "unexpected regOffs");
+        ldrb(GetReg(Node), STATE, Op->Offset);
+        break;
+
+      case 2:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs");
+        ldrh(GetReg(Node), STATE, Op->Offset);
+        break;
+
+      case 4:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs");
+        ldr(GetReg(Node).W(), STATE, Op->Offset);
+        break;
+
+      case 8:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs");
+        ldr(GetReg(Node).X(), STATE, Op->Offset);
+        break;
+
+      default:
+        LOGMAN_MSG_A_FMT("Unhandled LoadRegister GPR size: {}", OpSize);
+        break;
+    }
+  }
+  else if (Op->Class == IR::FPRClass) {
+    const auto regSize = HostSupportsSVE ? Core::CPUState::XMM_AVX_REG_SIZE
+                                         : Core::CPUState::XMM_SSE_REG_SIZE;
+    [[maybe_unused]] const auto regId = (Op->Offset - offsetof(Core::CpuStateFrame, State.xmm.avx.data[0][0])) / regSize;
+
+    LOGMAN_THROW_A_FMT(HostSupportsSVE, "Unsupported code path!");
+    LOGMAN_THROW_A_FMT(regId < SRAFPR.size(), "out of range regId");
+
+    const auto host = GetVReg(Node);
+
+    const auto regOffs = Op->Offset & 15;
+
+    switch (OpSize) {
+      case 1: {
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs: {}", regOffs);
+        ldrb(host, STATE, Op->Offset);
+        break;
+      }
+      case 2: {
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs: {}", regOffs);
+        ldrh(host, STATE, Op->Offset);
+        break;
+      }
+      case 4: {
+        LOGMAN_THROW_AA_FMT((regOffs & 3) == 0, "unexpected regOffs: {}", regOffs);
+        ldr(host.S(), STATE, Op->Offset);
+        break;
+      }
+
+      case 8: {
+        LOGMAN_THROW_AA_FMT((regOffs & 7) == 0, "unexpected regOffs: {}", regOffs);
+        ldr(host.D(), STATE, Op->Offset);
+        break;
+      }
+
+      case 16: {
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs: {}", regOffs);
+        ldr(host.Q(), STATE, Op->Offset);
+        break;
+      }
+    }
+  } else {
+    LOGMAN_THROW_AA_FMT(false, "Unhandled Op->Class {}", Op->Class);
+  }
+}
+
+DEF_OP(StoreRegister) {
+  const auto Op = IROp->C<IR::IROp_StoreRegister>();
+  const auto OpSize = IROp->Size;
+
+  if (Op->Class == IR::GPRClass) {
+    [[maybe_unused]] const auto regId = (Op->Offset / Core::CPUState::GPR_REG_SIZE) - 1;
+    const auto regOffs = Op->Offset & 7;
+
+    LOGMAN_THROW_A_FMT(regId < SRA64.size(), "out of range regId");
+
+    const auto Src = GetReg(Op->Value.ID());
+
+    switch (OpSize) {
+      case 1:
+        LOGMAN_THROW_AA_FMT(regOffs == 0 || regOffs == 1, "unexpected regOffs");
+        strb(Src, STATE, Op->Offset);
+        break;
+
+      case 2:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs");
+        strh(Src, STATE, Op->Offset);
+        break;
+
+      case 4:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs");
+        str(Src.W(), STATE, Op->Offset);
+        break;
+      case 8:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs");
+        str(Src.X(), STATE, Op->Offset);
+        break;
+
+      default:
+        LOGMAN_MSG_A_FMT("Unhandled StoreRegister GPR size: {}", OpSize);
+        break;
+    }
+  } else if (Op->Class == IR::FPRClass) {
+    const auto regSize = HostSupportsSVE ? Core::CPUState::XMM_AVX_REG_SIZE
+                                         : Core::CPUState::XMM_SSE_REG_SIZE;
+    [[maybe_unused]] const auto regId = (Op->Offset - offsetof(Core::CpuStateFrame, State.xmm.avx.data[0][0])) / regSize;
+
+    LOGMAN_THROW_A_FMT(HostSupportsSVE, "Unsupported code path!");
+    LOGMAN_THROW_A_FMT(regId < SRAFPR.size(), "regId out of range");
+
+    const auto host = GetVReg(Op->Value.ID());
+
+    const auto regOffs = Op->Offset & 15;
+
+    switch (OpSize) {
+      case 1:
+        strb(host, STATE, Op->Offset);
+        break;
+
+      case 2:
+        LOGMAN_THROW_AA_FMT((regOffs & 1) == 0, "unexpected regOffs: {}", regOffs);
+        strh(host, STATE, Op->Offset);
+        break;
+
+      case 4:
+        LOGMAN_THROW_AA_FMT((regOffs & 3) == 0, "unexpected regOffs: {}", regOffs);
+        str(host.S(), STATE, Op->Offset);
+        break;
+
+      case 8:
+        LOGMAN_THROW_AA_FMT((regOffs & 7) == 0, "unexpected regOffs: {}", regOffs);
+        str(host.D(), STATE, Op->Offset);
+        break;
+
+      case 16:
+        LOGMAN_THROW_AA_FMT(regOffs == 0, "unexpected regOffs: {}", regOffs);
+        str(host.Q(), STATE, Op->Offset);
+        break;
+
+      default:
+        LOGMAN_MSG_A_FMT("Unhandled StoreRegister FPR size: {}", OpSize);
+        break;
+    }
+  } else {
+    LOGMAN_THROW_AA_FMT(false, "Unhandled Op->Class {}", Op->Class);
+  }
+}
+
+DEF_OP(LoadRegisterSRA) {
+  const auto Op = IROp->C<IR::IROp_LoadRegister>();
+  const auto OpSize = IROp->Size;
+
   if (Op->Class == IR::GPRClass) {
     const auto regId = (Op->Offset - offsetof(Core::CpuStateFrame, State.gregs[0])) / Core::CPUState::GPR_REG_SIZE;
     const auto regOffs = Op->Offset & 7;
@@ -312,7 +476,7 @@ DEF_OP(LoadRegister) {
   }
 }
 
-DEF_OP(StoreRegister) {
+DEF_OP(StoreRegisterSRA) {
   const auto Op = IROp->C<IR::IROp_StoreRegister>();
   const auto OpSize = IROp->Size;
 
@@ -500,7 +664,6 @@ DEF_OP(StoreRegister) {
   }
 }
 
-
 DEF_OP(LoadContextIndexed) {
   const auto Op = IROp->C<IR::IROp_LoadContextIndexed>();
   const auto OpSize = IROp->Size;
@@ -703,7 +866,7 @@ DEF_OP(SpillRegister) {
     const auto Src = GetReg(Op->Value.ID());
     switch (OpSize) {
     case 1: {
-      if (SlotOffset > 4095) {
+      if (SlotOffset > LSByteMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         strb(Src, ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -713,7 +876,7 @@ DEF_OP(SpillRegister) {
       break;
     }
     case 2: {
-      if (SlotOffset > 8190) {
+      if (SlotOffset > LSHalfMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         strh(Src, ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -723,7 +886,7 @@ DEF_OP(SpillRegister) {
       break;
     }
     case 4: {
-      if (SlotOffset > 16380) {
+      if (SlotOffset > LSWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         str(Src.W(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -733,7 +896,7 @@ DEF_OP(SpillRegister) {
       break;
     }
     case 8: {
-      if (SlotOffset > 32760) {
+      if (SlotOffset > LSDWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         str(Src.X(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -751,7 +914,7 @@ DEF_OP(SpillRegister) {
 
     switch (OpSize) {
     case 4: {
-      if (SlotOffset > 16380) {
+      if (SlotOffset > LSWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         str(Src.S(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -761,7 +924,7 @@ DEF_OP(SpillRegister) {
       break;
     }
     case 8: {
-      if (SlotOffset > 32760) {
+      if (SlotOffset > LSDWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         str(Src.D(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -771,7 +934,7 @@ DEF_OP(SpillRegister) {
       break;
     }
     case 16: {
-      if (SlotOffset > 65520) {
+      if (SlotOffset > LSQWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         str(Src.Q(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -803,7 +966,7 @@ DEF_OP(FillRegister) {
     const auto Dst = GetReg(Node);
     switch (OpSize) {
     case 1: {
-      if (SlotOffset > 4095) {
+      if (SlotOffset > LSByteMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldrb(Dst, ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -813,7 +976,7 @@ DEF_OP(FillRegister) {
       break;
     }
     case 2: {
-      if (SlotOffset > 8190) {
+      if (SlotOffset > LSHalfMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldrh(Dst, ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -823,7 +986,7 @@ DEF_OP(FillRegister) {
       break;
     }
     case 4: {
-      if (SlotOffset > 16380) {
+      if (SlotOffset > LSWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldr(Dst.W(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -833,7 +996,7 @@ DEF_OP(FillRegister) {
       break;
     }
     case 8: {
-      if (SlotOffset > 32760) {
+      if (SlotOffset > LSDWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldr(Dst.X(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -851,7 +1014,7 @@ DEF_OP(FillRegister) {
 
     switch (OpSize) {
     case 4: {
-      if (SlotOffset > 16380) {
+      if (SlotOffset > LSWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldr(Dst.S(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -861,7 +1024,7 @@ DEF_OP(FillRegister) {
       break;
     }
     case 8: {
-      if (SlotOffset > 32760) {
+      if (SlotOffset > LSDWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldr(Dst.D(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -871,7 +1034,7 @@ DEF_OP(FillRegister) {
       break;
     }
     case 16: {
-      if (SlotOffset > 65520) {
+      if (SlotOffset > LSQWordMaxUnsignedOffset) {
         LoadConstant(ARMEmitter::Size::i64Bit, TMP1, SlotOffset);
         ldr(Dst.Q(), ARMEmitter::Reg::rsp, TMP1.R(), ARMEmitter::ExtendedType::LSL_64, 0);
       }
@@ -911,20 +1074,20 @@ FEXCore::ARMEmitter::ExtendedMemOperand Arm64JITCore::GenerateMemOperand(uint8_t
                                             IR::MemOffsetType OffsetType,
                                             uint8_t OffsetScale) {
   if (Offset.IsInvalid()) {
-    return FEXCore::ARMEmitter::ExtendedMemOperand(Base, ARMEmitter::IndexType::OFFSET, 0);
+    return ARMEmitter::ExtendedMemOperand(Base.X(), ARMEmitter::IndexType::OFFSET, 0);
   } else {
     if (OffsetScale != 1 && OffsetScale != AccessSize) {
       LOGMAN_MSG_A_FMT("Unhandled GenerateMemOperand OffsetScale: {}", OffsetScale);
     }
     uint64_t Const;
     if (IsInlineConstant(Offset, &Const)) {
-      return FEXCore::ARMEmitter::ExtendedMemOperand(Base, ARMEmitter::IndexType::OFFSET, Const);
+      return ARMEmitter::ExtendedMemOperand(Base.X(), ARMEmitter::IndexType::OFFSET, Const);
     } else {
       auto RegOffset = GetReg(Offset.ID());
       switch(OffsetType.Val) {
-        case IR::MEM_OFFSET_SXTX.Val: return FEXCore::ARMEmitter::ExtendedMemOperand(Base, RegOffset, FEXCore::ARMEmitter::ExtendedType::SXTX, (int)std::log2(OffsetScale) );
-        case IR::MEM_OFFSET_UXTW.Val: return FEXCore::ARMEmitter::ExtendedMemOperand(Base, RegOffset, FEXCore::ARMEmitter::ExtendedType::UXTW, (int)std::log2(OffsetScale) );
-        case IR::MEM_OFFSET_SXTW.Val: return FEXCore::ARMEmitter::ExtendedMemOperand(Base, RegOffset, FEXCore::ARMEmitter::ExtendedType::SXTW, (int)std::log2(OffsetScale) );
+        case IR::MEM_OFFSET_SXTX.Val: return ARMEmitter::ExtendedMemOperand(Base.X(), RegOffset.X(), ARMEmitter::ExtendedType::SXTX, (int)std::log2(OffsetScale) );
+        case IR::MEM_OFFSET_UXTW.Val: return ARMEmitter::ExtendedMemOperand(Base.X(), RegOffset.X(), ARMEmitter::ExtendedType::UXTW, (int)std::log2(OffsetScale) );
+        case IR::MEM_OFFSET_SXTW.Val: return ARMEmitter::ExtendedMemOperand(Base.X(), RegOffset.X(), ARMEmitter::ExtendedType::SXTW, (int)std::log2(OffsetScale) );
         default: LOGMAN_MSG_A_FMT("Unhandled GenerateMemOperand OffsetType: {}", OffsetType.Val); break;
       }
     }
@@ -1101,14 +1264,14 @@ DEF_OP(LoadMemTSO) {
     const auto Dst = GetReg(Node);
     if (OpSize == 1) {
       // 8bit load is always aligned to natural alignment
-      ldaprb(Dst, MemReg);
+      ldaprb(Dst.W(), MemReg);
     }
     else {
       // Aligned
       nop();
       switch (OpSize) {
         case 2:
-          ldaprh(Dst, MemReg);
+          ldaprh(Dst.W(), MemReg);
           break;
         case 4:
           ldapr(Dst.W(), MemReg);
@@ -1182,6 +1345,106 @@ DEF_OP(LoadMemTSO) {
   }
 }
 
+DEF_OP(VLoadVectorMasked) {
+  LOGMAN_THROW_A_FMT(HostSupportsSVE, "Need SVE support in order to use VLoadVectorMasked");
+
+  const auto Op = IROp->C<IR::IROp_VLoadVectorMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto ElementSize = IROp->ElementSize;
+
+  const auto CMPPredicate = ARMEmitter::PReg::p0;
+  const auto GoverningPredicate = Is256Bit ? PRED_TMP_32B : PRED_TMP_16B;
+
+  const auto Dst = GetVReg(Node);
+  const auto MaskReg = GetVReg(Op->Mask.ID());
+  const auto MemReg = GetReg(Op->Addr.ID());
+  const auto MemSrc = GenerateSVEMemOperand(OpSize, MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);
+
+  LOGMAN_THROW_AA_FMT(ElementSize == 1 || ElementSize == 2 || ElementSize == 4 || ElementSize == 8, "Invalid size");
+  const auto SubRegSize =
+    ElementSize == 1 ? ARMEmitter::SubRegSize::i8Bit :
+    ElementSize == 2 ? ARMEmitter::SubRegSize::i16Bit :
+    ElementSize == 4 ? ARMEmitter::SubRegSize::i32Bit :
+    ElementSize == 8 ? ARMEmitter::SubRegSize::i64Bit : ARMEmitter::SubRegSize::i8Bit;
+
+  // Check if the sign bit is set for the given element size.
+  cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+
+  switch (ElementSize) {
+    case 1: {
+      ld1b<ARMEmitter::SubRegSize::i8Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    case 2: {
+      ld1h<ARMEmitter::SubRegSize::i16Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    case 4: {
+      ld1w<ARMEmitter::SubRegSize::i32Bit>(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    case 8: {
+      ld1d(Dst.Z(), CMPPredicate.Zeroing(), MemSrc);
+      break;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled VLoadVectorMasked size: {}", ElementSize);
+      break;
+  }
+}
+
+DEF_OP(VStoreVectorMasked) {
+  LOGMAN_THROW_A_FMT(HostSupportsSVE, "Need SVE support in order to use VStoreVectorMasked");
+
+  const auto Op = IROp->C<IR::IROp_VStoreVectorMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto ElementSize = IROp->ElementSize;
+
+  const auto CMPPredicate = ARMEmitter::PReg::p0;
+  const auto GoverningPredicate = Is256Bit ? PRED_TMP_32B : PRED_TMP_16B;
+
+  const auto RegData = GetVReg(Op->Data.ID());
+  const auto MaskReg = GetVReg(Op->Mask.ID());
+  const auto MemReg = GetReg(Op->Addr.ID());
+  const auto MemDst = GenerateSVEMemOperand(OpSize, MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);
+
+  LOGMAN_THROW_AA_FMT(ElementSize == 1 || ElementSize == 2 || ElementSize == 4 || ElementSize == 8, "Invalid size");
+  const auto SubRegSize =
+    ElementSize == 1 ? ARMEmitter::SubRegSize::i8Bit :
+    ElementSize == 2 ? ARMEmitter::SubRegSize::i16Bit :
+    ElementSize == 4 ? ARMEmitter::SubRegSize::i32Bit :
+    ElementSize == 8 ? ARMEmitter::SubRegSize::i64Bit : ARMEmitter::SubRegSize::i8Bit;
+
+  // Check if the sign bit is set for the given element size.
+  cmplt(SubRegSize, CMPPredicate, GoverningPredicate.Zeroing(), MaskReg.Z(), 0);
+
+  switch (ElementSize) {
+    case 1: {
+      st1b<ARMEmitter::SubRegSize::i8Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 2: {
+      st1h<ARMEmitter::SubRegSize::i16Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 4: {
+      st1w<ARMEmitter::SubRegSize::i32Bit>(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    case 8: {
+      st1d(RegData.Z(), CMPPredicate.Zeroing(), MemDst);
+      break;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled VStoreVectorMasked size: {}", ElementSize);
+      break;
+  }
+}
+
 DEF_OP(StoreMem) {
   const auto Op = IROp->C<IR::IROp_StoreMem>();
   const auto OpSize = IROp->Size;
@@ -1340,6 +1603,428 @@ DEF_OP(StoreMemTSO) {
   }
 }
 
+DEF_OP(MemSet) {
+  // TODO: A future looking task would be to support this with ARM's MOPS instructions.
+  // The 8-bit non-atomic forward path directly matches ARM's SETP/SETM/SETE instruction,
+  // while the backward version needs some fixup to convert it to a forward direction.
+  //
+  // Assuming non-atomicity and non-faulting behaviour, this can accelerate this implementation.
+  // Additionally: This is commonly used as a memset to zero. If we know up-front with an inline constant
+  // that the value is zero, we can optimize any operation larger than 8-bit down to 8-bit to use the MOPS implementation.
+  const auto Op = IROp->C<IR::IROp_MemSet>();
+
+  const int32_t Size = Op->Size;
+  const auto MemReg = GetReg(Op->Addr.ID());
+  const auto Value = GetReg(Op->Value.ID());
+  const auto Length = GetReg(Op->Length.ID());
+  const auto Direction = GetReg(Op->Direction.ID());
+  const auto Dst = GetReg(Node);
+
+  // If Direction == 0 then:
+  //   MemReg is incremented (by size)
+  // else:
+  //   MemReg is decremented (by size)
+  //
+  // Counter is decremented regardless.
+
+  ARMEmitter::ForwardLabel BackwardImpl{};
+  ARMEmitter::ForwardLabel Done{};
+
+  mov(TMP1, Length.X());
+  if (Op->Prefix.IsInvalid()) {
+    mov(TMP2, MemReg.X());
+  }
+  else {
+    const auto Prefix = GetReg(Op->Prefix.ID());
+    add(TMP2, Prefix.X(), MemReg.X());
+  }
+
+  // Backward or forwards implementation depends on flag
+  cbnz(ARMEmitter::Size::i64Bit, Direction, &BackwardImpl);
+
+  auto MemStore = [this](auto Value, uint32_t OpSize, int32_t Size) {
+    switch (OpSize) {
+      case 1:
+        strb<ARMEmitter::IndexType::POST>(Value.W(), TMP2, Size);
+        break;
+      case 2:
+        strh<ARMEmitter::IndexType::POST>(Value.W(), TMP2, Size);
+        break;
+      case 4:
+        str<ARMEmitter::IndexType::POST>(Value.W(), TMP2, Size);
+        break;
+      case 8:
+        str<ARMEmitter::IndexType::POST>(Value.X(), TMP2, Size);
+        break;
+      default:
+        LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+        break;
+    }
+  };
+
+  auto MemStoreTSO = [this](auto Value, uint32_t OpSize, int32_t Size) {
+    if (OpSize == 1) {
+      // 8bit load is always aligned to natural alignment
+      stlrb(Value.W(), TMP2);
+    }
+    else {
+      nop();
+      switch (OpSize) {
+        case 2:
+          stlrh(Value.W(), TMP2);
+          break;
+        case 4:
+          stlr(Value.W(), TMP2);
+          break;
+        case 8:
+          stlr(Value.X(), TMP2);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+      nop();
+    }
+
+    if (Size >= 0) {
+      add(ARMEmitter::Size::i64Bit, TMP2, TMP2, OpSize);
+    }
+    else {
+      sub(ARMEmitter::Size::i64Bit, TMP2, TMP2, OpSize);
+    }
+  };
+
+  // Emit forward direction memset then backward direction memset.
+  for (int32_t Direction :  { 1, -1 }) {
+    const int32_t OpSize = Size;
+    const int32_t SizeDirection = Size * Direction;
+
+    ARMEmitter::BackwardLabel AgainInternal{};
+    ARMEmitter::ForwardLabel DoneInternal{};
+
+    // Early exit if zero count.
+    cbz(ARMEmitter::Size::i64Bit, TMP1, &DoneInternal);
+
+    Bind(&AgainInternal);
+    if (Op->IsAtomic) {
+      MemStoreTSO(Value, OpSize, SizeDirection);
+    }
+    else {
+      MemStore(Value, OpSize, SizeDirection);
+    }
+    sub(ARMEmitter::Size::i64Bit, TMP1, TMP1, 1);
+    cbnz(ARMEmitter::Size::i64Bit, TMP1, &AgainInternal);
+
+    Bind(&DoneInternal);
+
+    if (SizeDirection >= 0) {
+      switch (OpSize) {
+        case 1:
+          add(Dst.X(), MemReg.X(), Length.X());
+          break;
+        case 2:
+          add(Dst.X(), MemReg.X(), Length.X(), ARMEmitter::ShiftType::LSL, 1);
+          break;
+        case 4:
+          add(Dst.X(), MemReg.X(), Length.X(), ARMEmitter::ShiftType::LSL, 2);
+          break;
+        case 8:
+          add(Dst.X(), MemReg.X(), Length.X(), ARMEmitter::ShiftType::LSL, 3);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, OpSize);
+          break;
+      }
+    }
+    else {
+      switch (OpSize) {
+        case 1:
+          sub(Dst.X(), MemReg.X(), Length.X());
+          break;
+        case 2:
+          sub(Dst.X(), MemReg.X(), Length.X(), ARMEmitter::ShiftType::LSL, 1);
+          break;
+        case 4:
+          sub(Dst.X(), MemReg.X(), Length.X(), ARMEmitter::ShiftType::LSL, 2);
+          break;
+        case 8:
+          sub(Dst.X(), MemReg.X(), Length.X(), ARMEmitter::ShiftType::LSL, 3);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, OpSize);
+          break;
+      }
+    }
+
+    if (Direction == 1) {
+      b(&Done);
+      Bind(&BackwardImpl);
+    }
+  }
+
+  Bind(&Done);
+  // Destination already set to the final pointer.
+}
+
+DEF_OP(MemCpy) {
+  // TODO: A future looking task would be to support this with ARM's MOPS instructions.
+  // The 8-bit non-atomic path directly matches ARM's CPYP/CPYM/CPYE instruction,
+  //
+  // Assuming non-atomicity and non-faulting behaviour, this can accelerate this implementation.
+  const auto Op = IROp->C<IR::IROp_MemCpy>();
+
+  const int32_t Size = Op->Size;
+  const auto MemRegDest = GetReg(Op->AddrDest.ID());
+  const auto MemRegSrc = GetReg(Op->AddrSrc.ID());
+
+  const auto Length = GetReg(Op->Length.ID());
+  const auto Direction = GetReg(Op->Direction.ID());
+
+  auto Dst = GetRegPair(Node);
+  // If Direction == 0 then:
+  //   MemRegDest is incremented (by size)
+  //   MemRegSrc is incremented (by size)
+  // else:
+  //   MemRegDest is decremented (by size)
+  //   MemRegSrc is decremented (by size)
+  //
+  // Counter is decremented regardless.
+
+  ARMEmitter::ForwardLabel BackwardImpl{};
+  ARMEmitter::ForwardLabel Done{};
+
+  mov(TMP1, Length.X());
+  if (Op->PrefixDest.IsInvalid()) {
+    mov(TMP2, MemRegDest.X());
+  }
+  else {
+    const auto Prefix = GetReg(Op->PrefixDest.ID());
+    add(TMP2, Prefix.X(), MemRegDest.X());
+  }
+
+  if (Op->PrefixSrc.IsInvalid()) {
+    mov(TMP3, MemRegSrc.X());
+  }
+  else {
+    const auto Prefix = GetReg(Op->PrefixSrc.ID());
+    add(TMP3, Prefix.X(), MemRegSrc.X());
+  }
+
+  // TMP1 = Length
+  // TMP2 = Dest
+  // TMP3 = Src
+  // TMP4 = load+store temp value
+
+  // Backward or forwards implementation depends on flag
+  cbnz(ARMEmitter::Size::i64Bit, Direction, &BackwardImpl);
+
+  auto MemCpy = [this](uint32_t OpSize, int32_t Size) {
+    switch (OpSize) {
+      case 1:
+        ldrb<ARMEmitter::IndexType::POST>(TMP4.W(), TMP3, Size);
+        strb<ARMEmitter::IndexType::POST>(TMP4.W(), TMP2, Size);
+        break;
+      case 2:
+        ldrh<ARMEmitter::IndexType::POST>(TMP4.W(), TMP3, Size);
+        strh<ARMEmitter::IndexType::POST>(TMP4.W(), TMP2, Size);
+        break;
+      case 4:
+        ldr<ARMEmitter::IndexType::POST>(TMP4.W(), TMP3, Size);
+        str<ARMEmitter::IndexType::POST>(TMP4.W(), TMP2, Size);
+        break;
+      case 8:
+        ldr<ARMEmitter::IndexType::POST>(TMP4, TMP3, Size);
+        str<ARMEmitter::IndexType::POST>(TMP4, TMP2, Size);
+        break;
+      default:
+        LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+        break;
+    }
+  };
+
+  auto MemCpyTSO = [this](uint32_t OpSize, int32_t Size) {
+    if (CTX->HostFeatures.SupportsRCPC) {
+      if (OpSize == 1) {
+        // 8bit load is always aligned to natural alignment
+        ldaprb(TMP4.W(), TMP3);
+        stlrb(TMP4.W(), TMP2);
+      }
+      else {
+        nop();
+        switch (OpSize) {
+          case 2:
+            ldaprh(TMP4.W(), TMP3);
+            break;
+          case 4:
+            ldapr(TMP4.W(), TMP3);
+            break;
+          case 8:
+            ldapr(TMP4, TMP3);
+            break;
+          default:
+            LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+            break;
+        }
+        nop();
+
+        nop();
+        switch (OpSize) {
+          case 2:
+            stlrh(TMP4.W(), TMP2);
+            break;
+          case 4:
+            stlr(TMP4.W(), TMP2);
+            break;
+          case 8:
+            stlr(TMP4, TMP2);
+            break;
+          default:
+            LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+            break;
+        }
+        nop();
+      }
+    }
+    else {
+      if (OpSize == 1) {
+        // 8bit load is always aligned to natural alignment
+        ldarb(TMP4.W(), TMP3);
+        stlrb(TMP4.W(), TMP2);
+      }
+      else {
+        nop();
+        switch (OpSize) {
+          case 2:
+            ldarh(TMP4.W(), TMP3);
+            break;
+          case 4:
+            ldar(TMP4.W(), TMP3);
+            break;
+          case 8:
+            ldar(TMP4, TMP3);
+            break;
+          default:
+            LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+            break;
+        }
+        nop();
+
+        nop();
+        switch (OpSize) {
+          case 2:
+            stlrh(TMP4.W(), TMP2);
+            break;
+          case 4:
+            stlr(TMP4.W(), TMP2);
+            break;
+          case 8:
+            stlr(TMP4, TMP2);
+            break;
+          default:
+            LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+            break;
+        }
+        nop();
+      }
+    }
+
+    if (Size >= 0) {
+      add(ARMEmitter::Size::i64Bit, TMP2, TMP2, OpSize);
+      add(ARMEmitter::Size::i64Bit, TMP3, TMP3, OpSize);
+    }
+    else {
+      sub(ARMEmitter::Size::i64Bit, TMP2, TMP2, OpSize);
+      sub(ARMEmitter::Size::i64Bit, TMP3, TMP3, OpSize);
+    }
+  };
+
+  // Emit forward direction memset then backward direction memset.
+  for (int32_t Direction :  { 1, -1 }) {
+    const int32_t OpSize = Size;
+    const int32_t SizeDirection = Size * Direction;
+
+    ARMEmitter::BackwardLabel AgainInternal{};
+    ARMEmitter::ForwardLabel DoneInternal{};
+
+    // Early exit if zero count.
+    cbz(ARMEmitter::Size::i64Bit, TMP1, &DoneInternal);
+
+    Bind(&AgainInternal);
+    if (Op->IsAtomic) {
+      MemCpyTSO(OpSize, SizeDirection);
+    }
+    else {
+      MemCpy(OpSize, SizeDirection);
+    }
+    sub(ARMEmitter::Size::i64Bit, TMP1, TMP1, 1);
+    cbnz(ARMEmitter::Size::i64Bit, TMP1, &AgainInternal);
+
+    Bind(&DoneInternal);
+
+    // Needs to use temporaries just in case of overwrite
+    mov(TMP1, MemRegDest.X());
+    mov(TMP2, MemRegSrc.X());
+    mov(TMP3, Length.X());
+
+    if (SizeDirection >= 0) {
+      switch (OpSize) {
+        case 1:
+          add(Dst.first.X(), TMP1, TMP3);
+          add(Dst.second.X(), TMP2, TMP3);
+          break;
+        case 2:
+          add(Dst.first.X(), TMP1, TMP3, ARMEmitter::ShiftType::LSL, 1);
+          add(Dst.second.X(), TMP2, TMP3, ARMEmitter::ShiftType::LSL, 1);
+          break;
+        case 4:
+          add(Dst.first.X(), TMP1, TMP3, ARMEmitter::ShiftType::LSL, 2);
+          add(Dst.second.X(), TMP2, TMP3, ARMEmitter::ShiftType::LSL, 2);
+          break;
+        case 8:
+          add(Dst.first.X(), TMP1, TMP3, ARMEmitter::ShiftType::LSL, 3);
+          add(Dst.second.X(), TMP2, TMP3, ARMEmitter::ShiftType::LSL, 3);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, OpSize);
+          break;
+      }
+    }
+    else {
+      switch (OpSize) {
+        case 1:
+          sub(Dst.first.X(), TMP1, TMP3);
+          sub(Dst.second.X(), TMP2, TMP3);
+          break;
+        case 2:
+          sub(Dst.first.X(), TMP1, TMP3, ARMEmitter::ShiftType::LSL, 1);
+          sub(Dst.second.X(), TMP2, TMP3, ARMEmitter::ShiftType::LSL, 1);
+          break;
+        case 4:
+          sub(Dst.first.X(), TMP1, TMP3, ARMEmitter::ShiftType::LSL, 2);
+          sub(Dst.second.X(), TMP2, TMP3, ARMEmitter::ShiftType::LSL, 2);
+          break;
+        case 8:
+          sub(Dst.first.X(), TMP1, TMP3, ARMEmitter::ShiftType::LSL, 3);
+          sub(Dst.second.X(), TMP2, TMP3, ARMEmitter::ShiftType::LSL, 3);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, OpSize);
+          break;
+      }
+    }
+
+    if (Direction == 1) {
+      b(&Done);
+      Bind(&BackwardImpl);
+    }
+  }
+
+  Bind(&Done);
+  // Destination already set to the final pointer.
+}
+
+
+
 DEF_OP(ParanoidLoadMemTSO) {
   const auto Op = IROp->C<IR::IROp_LoadMemTSO>();
   const auto OpSize = IROp->Size;
@@ -1473,7 +2158,7 @@ DEF_OP(ParanoidStoreMemTSO) {
       }
       case 32: {
         dmb(FEXCore::ARMEmitter::BarrierScope::ISH);
-        st1b<ARMEmitter::SubRegSize::i8Bit>(Src, PRED_TMP_32B, Addr, 0);
+        st1b<ARMEmitter::SubRegSize::i8Bit>(Src.Z(), PRED_TMP_32B, Addr, 0);
         dmb(FEXCore::ARMEmitter::BarrierScope::ISH);
         break;
       }

External/FEXCore/Source/Interface/Core/JIT/Arm64/MiscOps.cpp

@@ -4,18 +4,23 @@ tags: backend|arm64
 $end_info$
 */
 
+#ifndef _WIN32
 #include <syscall.h>
+#endif
+
 #include "Interface/Core/ArchHelpers/CodeEmitter/Emitter.h"
 #include "Interface/Core/JIT/Arm64/JITClass.h"
 #include "FEXCore/Debug/InternalThreadState.h"
 
+#include <FEXCore/Core/SignalDelegator.h>
+
 namespace FEXCore::CPU {
 #define DEF_OP(x) void Arm64JITCore::Op_##x(IR::IROp_Header const *IROp, IR::NodeID Node)
 
 DEF_OP(GuestOpcode) {
   auto Op = IROp->C<IR::IROp_GuestOpcode>();
   // metadata
-  DebugData->GuestOpcodes.push_back({Op->GuestEntryOffset, GetCursorAddress<uint8_t*>() - GuestEntry});
+  DebugData->GuestOpcodes.push_back({Op->GuestEntryOffset, GetCursorAddress<uint8_t*>() - CodeData.BlockBegin});
 }
 
 DEF_OP(Fence) {
@@ -55,15 +60,15 @@ DEF_OP(Break) {
   str(ARMEmitter::XReg::x1, STATE, offsetof(FEXCore::Core::CpuStateFrame, SynchronousFaultData));
 
   switch (Op->Reason.Signal) {
-  case SIGILL:
+  case Core::FAULT_SIGILL:
     ldr(TMP1, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.GuestSignal_SIGILL));
     br(TMP1);
     break;
-  case SIGTRAP:
+  case Core::FAULT_SIGTRAP:
     ldr(TMP1, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.GuestSignal_SIGTRAP));
     br(TMP1);
     break;
-  case SIGSEGV:
+  case Core::FAULT_SIGSEGV:
     ldr(TMP1, STATE, offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.GuestSignal_SIGSEGV));
     br(TMP1);
     break;
@@ -139,7 +144,7 @@ DEF_OP(Print) {
   auto Op = IROp->C<IR::IROp_Print>();
 
   PushDynamicRegsAndLR(TMP1);
-  SpillStaticRegs();
+  SpillStaticRegs(TMP1);
 
   if (IsGPR(Op->Value.ID())) {
     mov(ARMEmitter::Size::i64Bit, ARMEmitter::Reg::r0, GetReg(Op->Value.ID()));
@@ -157,6 +162,7 @@ DEF_OP(Print) {
   PopDynamicRegsAndLR();
 }
 
+#ifndef _WIN32
 DEF_OP(ProcessorID) {
   // We always need to spill x8 since we can't know if it is live at this SSA location
   uint32_t SpillMask = 1U << 8;
@@ -164,7 +170,7 @@ DEF_OP(ProcessorID) {
   // Ordering is incredibly important here
   // We must spill any overlapping registers first THEN claim we are in a syscall without invalidating state at all
   // Only spill the registers that intersect with our usage
-  SpillStaticRegs(false, SpillMask);
+  SpillStaticRegs(TMP1, false, SpillMask);
 
   // Now that we are spilled, store in the state that we are in a syscall
   // Still without overwriting registers that matter
@@ -207,6 +213,11 @@ DEF_OP(ProcessorID) {
   // Node is in w1
   orr(ARMEmitter::Size::i64Bit, GetReg(Node), ARMEmitter::Reg::r0, ARMEmitter::Reg::r1, ARMEmitter::ShiftType::LSL, 12);
 }
+#else
+DEF_OP(ProcessorID) {
+  ERROR_AND_DIE_FMT("Unsupported");
+}
+#endif
 
 DEF_OP(RDRAND) {
   auto Op = IROp->C<IR::IROp_RDRAND>();

External/FEXCore/Source/Interface/Core/JIT/JITCore.h

@@ -1,9 +1,10 @@
 #pragma once
 
-#include <memory>
+#include <FEXCore/Core/CPUBackend.h>
+#include <FEXCore/fextl/memory.h>
 
 namespace FEXCore::Context {
-struct Context;
+class ContextImpl;
 }
 
 namespace FEXCore::Core {
@@ -13,14 +14,12 @@ struct InternalThreadState;
 namespace FEXCore::CPU {
 class CPUBackend;
 
-[[nodiscard]] std::unique_ptr<CPUBackend> CreateX86JITCore(FEXCore::Context::Context *ctx,
+[[nodiscard]] fextl::unique_ptr<CPUBackend> CreateX86JITCore(FEXCore::Context::ContextImpl *ctx,
                                                            FEXCore::Core::InternalThreadState *Thread);
-void InitializeX86JITSignalHandlers(FEXCore::Context::Context *CTX);
 CPUBackendFeatures GetX86JITBackendFeatures();
 
-[[nodiscard]] std::unique_ptr<CPUBackend> CreateArm64JITCore(FEXCore::Context::Context *ctx,
+[[nodiscard]] fextl::unique_ptr<CPUBackend> CreateArm64JITCore(FEXCore::Context::ContextImpl *ctx,
                                                              FEXCore::Core::InternalThreadState *Thread);
-void InitializeArm64JITSignalHandlers(FEXCore::Context::Context *CTX);
 CPUBackendFeatures GetArm64JITBackendFeatures();
 
 } // namespace FEXCore::CPU

External/FEXCore/Source/Interface/Core/JIT/x86_64/ALUOps.cpp

@@ -5,6 +5,7 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/Utils/LogManager.h>
@@ -12,7 +13,6 @@ $end_info$
 #include <array>
 #include <stdint.h>
 #include <utility>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 

External/FEXCore/Source/Interface/Core/JIT/x86_64/AtomicOps.cpp

@@ -5,6 +5,7 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/Utils/LogManager.h>
@@ -12,7 +13,6 @@ $end_info$
 #include <array>
 #include <stdint.h>
 #include <utility>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 #define DEF_OP(x) void X86JITCore::Op_##x(IR::IROp_Header *IROp, IR::NodeID Node)

External/FEXCore/Source/Interface/Core/JIT/x86_64/BranchOps.cpp

@@ -7,6 +7,7 @@ $end_info$
 #include "Interface/Context/Context.h"
 #include "Interface/Core/CPUID.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include "Interface/Core/LookupCache.h"
 #include "Interface/Core/JIT/x86_64/JITClass.h"
 #include "Interface/HLE/Thunks/Thunks.h"
@@ -25,27 +26,10 @@ $end_info$
 #include <stdint.h>
 #include <unordered_map>
 #include <utility>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 #define DEF_OP(x) void X86JITCore::Op_##x(IR::IROp_Header *IROp, IR::NodeID Node)
 
-DEF_OP(SignalReturn) {
-  auto Op = IROp->C<IR::IROp_SignalReturn>();
-
-  // Adjust the stack first for a regular return
-  if (SpillSlots) {
-    add(rsp, SpillSlots * MaxSpillSlotSize); // + 8 to consume return address
-  }
-
-  if (Op->IsRT) {
-    jmp(qword [STATE + offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.SignalReturnHandlerRT)]);
-  }
-  else {
-    jmp(qword [STATE + offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.SignalReturnHandler)]);
-  }
-}
-
 DEF_OP(CallbackReturn) {
   // Adjust the stack first for a regular return
   if (SpillSlots) {
@@ -162,6 +146,7 @@ DEF_OP(Syscall) {
   auto Op = IROp->C<IR::IROp_Syscall>();
   // XXX: This is very terrible, but I don't care for right now
 
+  FEXCore::IR::SyscallFlags Flags = Op->Flags;
   auto NumPush = RA64.size();
 
   for (auto &Reg : RA64)
@@ -202,7 +187,11 @@ DEF_OP(Syscall) {
   for (uint32_t i = RA64.size(); i > 0; --i)
     pop(RA64[i - 1]);
 
-  mov (GetDst<RA_64>(Node), rax);
+  if ((Flags & FEXCore::IR::SyscallFlags::NORETURNEDRESULT) != FEXCore::IR::SyscallFlags::NORETURNEDRESULT) {
+    // Move result to its destination register.
+    // Only if `NORETURNEDRESULT` wasn't set, otherwise we might overwrite the CPUState refilled with `FillStaticRegs`
+    mov (GetDst<RA_64>(Node), rax);
+  }
 }
 
 DEF_OP(Thunk) {
@@ -218,7 +207,7 @@ DEF_OP(Thunk) {
 
   mov(rdi, GetSrc<RA_64>(Op->ArgPtr.ID()));
 
-  auto thunkFn = ThreadState->CTX->ThunkHandler->LookupThunk(Op->ThunkNameHash);
+  auto thunkFn = static_cast<Context::ContextImpl*>(ThreadState->CTX)->ThunkHandler->LookupThunk(Op->ThunkNameHash);
 
   mov(rax, reinterpret_cast<uintptr_t>(thunkFn));
   call(rax);
@@ -318,10 +307,45 @@ DEF_OP(CPUID) {
   mov(Dst.second, rdx);
 }
 
+DEF_OP(XGETBV) {
+  auto Op = IROp->C<IR::IROp_XGetBV>();
+
+  for (auto &Reg : RA64)
+    push(Reg);
+
+  // CPUID ABI
+  // this: rdi
+  // Function: rsi
+  //
+  // Result: RAX, RDX. 4xi32
+
+  // rsi can be in the source registers, so copy argument to edx first
+  mov (esi, GetSrc<RA_32>(Op->Function.ID()));
+  mov (rdi, qword [STATE + offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.CPUIDObj)]);
+
+  auto NumPush = RA64.size();
+
+  if (NumPush & 1)
+    sub(rsp, 8); // Align
+
+  // {rdi, rsi, rdx}
+  call(qword [STATE + offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.XCRFunction)]);
+
+  if (NumPush & 1)
+    add(rsp, 8); // Align
+
+  for (uint32_t i = RA64.size(); i > 0; --i)
+    pop(RA64[i - 1]);
+
+  auto Dst = GetSrcPair<RA_64>(Node);
+  mov(Dst.first.cvt32(), eax);
+  mov(Dst.second, rax);
+  shr(Dst.second, 32);
+}
+
 #undef DEF_OP
 void X86JITCore::RegisterBranchHandlers() {
 #define REGISTER_OP(op, x) OpHandlers[FEXCore::IR::IROps::OP_##op] = &X86JITCore::Op_##x
-  REGISTER_OP(SIGNALRETURN,      SignalReturn);
   REGISTER_OP(CALLBACKRETURN,    CallbackReturn);
   REGISTER_OP(EXITFUNCTION,      ExitFunction);
   REGISTER_OP(JUMP,              Jump);
@@ -331,6 +355,7 @@ void X86JITCore::RegisterBranchHandlers() {
   REGISTER_OP(VALIDATECODE,      ValidateCode);
   REGISTER_OP(THREADREMOVECODEENTRY,   ThreadRemoveCodeEntry);
   REGISTER_OP(CPUID,             CPUID);
+  REGISTER_OP(XGETBV,            XGETBV);
 #undef REGISTER_OP
 }
 }

External/FEXCore/Source/Interface/Core/JIT/x86_64/ConversionOps.cpp

@@ -5,13 +5,12 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
-
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/Utils/LogManager.h>
 
 #include <array>
 #include <stdint.h>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 
@@ -111,6 +110,53 @@ DEF_OP(VCastFromGPR) {
   }
 }
 
+DEF_OP(VDupFromGPR) {
+  const auto Op = IROp->C<IR::IROp_VDupFromGPR>();
+  const auto OpSize = IROp->Size;
+
+  const auto ElementSize = IROp->ElementSize;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto Src = GetSrc<RA_64>(Op->Src.ID()).cvt64();
+
+  vmovq(Dst, Src);
+
+  switch (ElementSize) {
+    case 1:
+      if (Is256Bit) {
+        vpbroadcastb(ToYMM(Dst), Dst);
+      } else {
+        vpbroadcastb(Dst, Dst);
+      }
+      break;
+    case 2:
+      if (Is256Bit) {
+        vpbroadcastw(ToYMM(Dst), Dst);
+      } else {
+        vpbroadcastw(Dst, Dst);
+      }
+      break;
+    case 4:
+      if (Is256Bit) {
+        vpbroadcastd(ToYMM(Dst), Dst);
+      } else {
+        vpbroadcastd(Dst, Dst);
+      }
+      break;
+    case 8:
+      if (Is256Bit) {
+        vpbroadcastq(ToYMM(Dst), Dst);
+      } else {
+        vpbroadcastq(Dst, Dst);
+      }
+      break;
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled element size: {}", ElementSize);
+      return;
+  }
+}
+
 DEF_OP(Float_FromGPR_S) {
   const auto Op = IROp->C<IR::IROp_Float_FromGPR_S>();
 
@@ -357,6 +403,7 @@ void X86JITCore::RegisterConversionHandlers() {
 #define REGISTER_OP(op, x) OpHandlers[FEXCore::IR::IROps::OP_##op] = &X86JITCore::Op_##x
   REGISTER_OP(VINSGPR,         VInsGPR);
   REGISTER_OP(VCASTFROMGPR,    VCastFromGPR);
+  REGISTER_OP(VDUPFROMGPR,     VDupFromGPR);
   REGISTER_OP(FLOAT_FROMGPR_S, Float_FromGPR_S);
   REGISTER_OP(FLOAT_FTOF,      Float_FToF);
   REGISTER_OP(VECTOR_STOF,     Vector_SToF);

External/FEXCore/Source/Interface/Core/JIT/x86_64/EncryptionOps.cpp

@@ -5,12 +5,11 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
-
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include <FEXCore/IR/IR.h>
 
 #include <array>
 #include <stdint.h>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 #define DEF_OP(x) void X86JITCore::Op_##x(IR::IROp_Header *IROp, IR::NodeID Node)
@@ -21,23 +20,67 @@ DEF_OP(AESImc) {
 }
 
 DEF_OP(AESEnc) {
-  auto Op = IROp->C<IR::IROp_VAESEnc>();
-  vaesenc(GetDst(Node), GetSrc(Op->State.ID()), GetSrc(Op->Key.ID()));
+  const auto Op = IROp->C<IR::IROp_VAESEnc>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto Key = GetSrc(Op->Key.ID());
+  const auto State = GetSrc(Op->State.ID());
+
+  if (Is256Bit) {
+    vaesenc(ToYMM(Dst), ToYMM(State), ToYMM(Key));
+  } else {
+    vaesenc(Dst, State, Key);
+  }
 }
 
 DEF_OP(AESEncLast) {
-  auto Op = IROp->C<IR::IROp_VAESEncLast>();
-  vaesenclast(GetDst(Node), GetSrc(Op->State.ID()), GetSrc(Op->Key.ID()));
+  const auto Op = IROp->C<IR::IROp_VAESEncLast>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto Key = GetSrc(Op->Key.ID());
+  const auto State = GetSrc(Op->State.ID());
+
+  if (Is256Bit) {
+    vaesenclast(ToYMM(Dst), ToYMM(State), ToYMM(Key));
+  } else {
+    vaesenclast(Dst, State, Key);
+  }
 }
 
 DEF_OP(AESDec) {
-  auto Op = IROp->C<IR::IROp_VAESDec>();
-  vaesdec(GetDst(Node), GetSrc(Op->State.ID()), GetSrc(Op->Key.ID()));
+  const auto Op = IROp->C<IR::IROp_VAESDec>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto Key = GetSrc(Op->Key.ID());
+  const auto State = GetSrc(Op->State.ID());
+
+  if (Is256Bit) {
+    vaesdec(ToYMM(Dst), ToYMM(State), ToYMM(Key));
+  } else {
+    vaesdec(Dst, State, Key);
+  }
 }
 
 DEF_OP(AESDecLast) {
-  auto Op = IROp->C<IR::IROp_VAESDecLast>();
-  vaesdeclast(GetDst(Node), GetSrc(Op->State.ID()), GetSrc(Op->Key.ID()));
+  const auto Op = IROp->C<IR::IROp_VAESDecLast>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto Key = GetSrc(Op->Key.ID());
+  const auto State = GetSrc(Op->State.ID());
+
+  if (Is256Bit) {
+    vaesdeclast(ToYMM(Dst), ToYMM(State), ToYMM(Key));
+  } else {
+    vaesdeclast(Dst, State, Key);
+  }
 }
 
 DEF_OP(AESKeyGenAssist) {
@@ -76,18 +119,24 @@ DEF_OP(CRC32) {
 }
 
 DEF_OP(PCLMUL) {
-  auto Op = IROp->C<IR::IROp_PCLMUL>();
+  const auto Op = IROp->C<IR::IROp_PCLMUL>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
 
-  auto Dst = GetDst(Node);
-  auto Src1 = GetSrc(Op->Src1.ID());
-  auto Src2 = GetSrc(Op->Src2.ID());
+  const auto Dst = GetDst(Node);
+  const auto Src1 = GetSrc(Op->Src1.ID());
+  const auto Src2 = GetSrc(Op->Src2.ID());
 
   switch (Op->Selector) {
   case 0b00000000:
   case 0b00000001:
   case 0b00010000:
   case 0b00010001:
-    vpclmulqdq(Dst, Src1, Src2, Op->Selector);
+    if (Is256Bit) {
+      vpclmulqdq(ToYMM(Dst), ToYMM(Src1), ToYMM(Src2), Op->Selector);
+    } else {
+      vpclmulqdq(Dst, Src1, Src2, Op->Selector);
+    }
     break;
   default:
     LOGMAN_MSG_A_FMT("Unknown PCLMUL selector: {}", Op->Selector);

External/FEXCore/Source/Interface/Core/JIT/x86_64/FlagOps.cpp

@@ -5,12 +5,12 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 
 #include <FEXCore/IR/IR.h>
 
 #include <array>
 #include <stdint.h>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 

External/FEXCore/Source/Interface/Core/JIT/x86_64/JIT.cpp

@@ -19,7 +19,6 @@ $end_info$
 
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/Core/CoreState.h>
-#include <FEXCore/Core/SignalDelegator.h>
 #include <FEXCore/Debug/InternalThreadState.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/IR/IntrusiveIRList.h>
@@ -28,6 +27,7 @@ $end_info$
 #include <FEXCore/Utils/EnumUtils.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/Utils/Profiler.h>
+#include <FEXCore/fextl/sstream.h>
 
 #include <algorithm>
 #include <array>
@@ -35,12 +35,9 @@ $end_info$
 #include <stddef.h>
 #include <stdint.h>
 #include <signal.h>
-#include <sys/mman.h>
 #include <tuple>
 #include <unordered_map>
 #include <utility>
-#include <vector>
-#include <xbyak/xbyak.h>
 
 // #define DEBUG_RA 1
 // #define DEBUG_CYCLES
@@ -307,6 +304,66 @@ void X86JITCore::Op_Unhandled(IR::IROp_Header *IROp, IR::NodeID Node) {
       }
       break;
 
+      case FABI_I32_I64_I64_I128_I128_I16: {
+        PushRegs();
+
+        const auto Op = IROp->C<IR::IROp_VPCMPESTRX>();
+        const auto Is64Bit = Op->GPRSize == 8;
+
+        const auto LHS = GetSrc(Op->LHS.ID());
+        const auto RHS = GetSrc(Op->RHS.ID());
+        const auto SrcRAX = GetSrc<RA_64>(Op->RAX.ID());
+        const auto SrcRDX = GetSrc<RA_64>(Op->RDX.ID());
+
+        // Encode the size check into the 8th bit to save a parameter
+        const auto Control = Op->Control | (uint16_t(Is64Bit) << 8);
+
+        mov(rdi, SrcRAX);
+        mov(rsi, SrcRDX);
+
+        movq(rdx, LHS);
+        pextrq(rcx, LHS, 1);
+
+        movq(r8, RHS);
+        pextrq(r9, RHS, 1);
+
+        sub(rsp, 16);
+        mov(dword [rsp], Control);
+
+        call(qword [STATE + offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.FallbackHandlerPointers[Info.HandlerIndex])]);
+
+        add(rsp, 16);
+        PopRegs();
+
+        mov(GetDst<RA_32>(Node), rax);
+        break;
+      }
+
+      case FABI_I32_I128_I128_I16: {
+        PushRegs();
+
+        const auto Op = IROp->C<IR::IROp_VPCMPISTRX>();
+
+        const auto LHS = GetSrc(Op->LHS.ID());
+        const auto RHS = GetSrc(Op->RHS.ID());
+        const auto Control = Op->Control;
+
+        movq(rdi, LHS);
+        pextrq(rsi, LHS, 1);
+
+        movq(rdx, RHS);
+        pextrq(rcx, RHS, 1);
+
+        mov(r8, Control);
+
+        call(qword [STATE + offsetof(FEXCore::Core::CpuStateFrame, Pointers.Common.FallbackHandlerPointers[Info.HandlerIndex])]);
+
+        PopRegs();
+
+        mov(GetDst<RA_32>(Node), rax);
+        break;
+      }
+
       case FABI_UNKNOWN:
       default:
 #if defined(ASSERTIONS_ENABLED) && ASSERTIONS_ENABLED
@@ -330,7 +387,7 @@ static uint64_t X86JITCore_ExitFunctionLink(FEXCore::Core::CpuStateFrame *Frame,
   }
 
   auto LinkerAddress = Frame->Pointers.Common.ExitFunctionLinker;
-  Context::Context::ThreadAddBlockLink(Thread, GuestRip, (uintptr_t)record, [record, LinkerAddress]{
+  Context::ContextImpl::ThreadAddBlockLink(Thread, GuestRip, (uintptr_t)record, [record, LinkerAddress]{
     // undo the link
     record[0] = LinkerAddress;
   });
@@ -342,14 +399,14 @@ static uint64_t X86JITCore_ExitFunctionLink(FEXCore::Core::CpuStateFrame *Frame,
 void X86JITCore::Op_NoOp(IR::IROp_Header *IROp, IR::NodeID Node) {
 }
 
-X86JITCore::X86JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalThreadState *Thread)
+X86JITCore::X86JITCore(FEXCore::Context::ContextImpl *ctx, FEXCore::Core::InternalThreadState *Thread)
   : CPUBackend(Thread, INITIAL_CODE_SIZE, MAX_CODE_SIZE)
   , CodeGenerator(0, this, nullptr) // this is not used here
   , CTX {ctx} {
 
   RAPass = Thread->PassManager->GetPass<IR::RegisterAllocationPass>("RA");
 
-  RAPass->AllocateRegisterSet(RegisterCount, RegisterClasses);
+  RAPass->AllocateRegisterSet(RegisterClasses);
   RAPass->AddRegisters(FEXCore::IR::GPRClass, NumGPRs);
   RAPass->AddRegisters(FEXCore::IR::FPRClass, NumXMMs);
   RAPass->AddRegisters(FEXCore::IR::GPRPairClass, NumGPRPairs);
@@ -379,7 +436,7 @@ X86JITCore::X86JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalTh
 
     Common.PrintValue = reinterpret_cast<uint64_t>(PrintValue);
     Common.PrintVectorValue = reinterpret_cast<uint64_t>(PrintVectorValue);
-    Common.ThreadRemoveCodeEntryFromJIT = reinterpret_cast<uintptr_t>(&Context::Context::ThreadRemoveCodeEntryFromJit);
+    Common.ThreadRemoveCodeEntryFromJIT = reinterpret_cast<uintptr_t>(&Context::ContextImpl::ThreadRemoveCodeEntryFromJit);
     Common.CPUIDObj = reinterpret_cast<uint64_t>(&CTX->CPUID);
 
     {
@@ -387,9 +444,14 @@ X86JITCore::X86JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalTh
       Common.CPUIDFunction = PMF.GetConvertedPointer();
     }
 
+    {
+      FEXCore::Utils::MemberFunctionToPointerCast PMF(&FEXCore::CPUIDEmu::RunXCRFunction);
+      Common.XCRFunction = PMF.GetConvertedPointer();
+    }
+
     Common.SyscallHandlerObj = reinterpret_cast<uint64_t>(CTX->SyscallHandler);
     Common.SyscallHandlerFunc = reinterpret_cast<uint64_t>(FEXCore::Context::HandleSyscall);
-    Common.ExitFunctionLink = reinterpret_cast<uintptr_t>(&Context::Context::ThreadExitFunctionLink<X86JITCore_ExitFunctionLink>);
+    Common.ExitFunctionLink = reinterpret_cast<uintptr_t>(&Context::ContextImpl::ThreadExitFunctionLink<X86JITCore_ExitFunctionLink>);
 
     // Fill in the fallback handlers
     InterpreterOps::FillFallbackIndexPointers(Common.FallbackHandlerPointers);
@@ -399,12 +461,6 @@ X86JITCore::X86JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalTh
   ClearCache();
 }
 
-void X86JITCore::InitializeSignalHandlers(FEXCore::Context::Context *CTX) {
-  CTX->SignalDelegation->RegisterHostSignalHandler(SIGILL, [](FEXCore::Core::InternalThreadState *Thread, int Signal, void *info, void *ucontext) -> bool {
-    return Thread->CTX->Dispatcher->HandleSIGILL(Thread, Signal, info, ucontext);
-  }, true);
-}
-
 X86JITCore::~X86JITCore() {
 
 }
@@ -587,7 +643,7 @@ std::tuple<X86JITCore::SetCC, X86JITCore::CMovCC, X86JITCore::JCC> X86JITCore::G
   return { &CodeGenerator::sete , &CodeGenerator::cmove , &CodeGenerator::je  };
 }
 
-void *X86JITCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRListView const *IR, [[maybe_unused]] FEXCore::Core::DebugData *DebugData, FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) {
+CPUBackend::CompiledCode X86JITCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRListView const *IR, [[maybe_unused]] FEXCore::Core::DebugData *DebugData, FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) {
 
   FEXCORE_PROFILE_SCOPED("x86::CompileCode");
   JumpTargets.clear();
@@ -603,12 +659,27 @@ void *X86JITCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRLi
     CTX->ClearCodeCache(ThreadState);
   }
 
-	GuestEntry = getCurr<uint8_t*>();
+  CodeData.BlockBegin = getCurr<uint8_t*>();
+
+  // Put the code header at the start of the data block.
+  Label JITCodeHeaderLabel{};
+  L(JITCodeHeaderLabel);
+
+  JITCodeHeader *CodeHeader = getCurr<JITCodeHeader *>();
+  setSize(getSize() + sizeof(JITCodeHeader));
+
+  CodeData.BlockEntry = getCurr<uint8_t*>();
+
+  // Get the address of the JITCodeHeader and store in to the core state.
+  // Only two instructions, so very low overhead.
+  lea(TMP1, ptr [rip + JITCodeHeaderLabel]);
+  mov(qword [STATE + offsetof(FEXCore::Core::CPUState, InlineJITBlockHeader)], TMP1);
+
   CursorEntry = getSize();
   this->IR = IR;
 
   if (GDBEnabled) {
-    auto GDBSize = CTX->Dispatcher->GenerateGDBPauseCheck(GuestEntry, Entry);
+    auto GDBSize = CTX->Dispatcher->GenerateGDBPauseCheck(CodeData.BlockBegin, Entry);
     setSize(getSize() + GDBSize);
   }
 
@@ -691,7 +762,7 @@ void *X86JITCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRLi
       if (IROp->Op != IR::OP_BEGINBLOCK &&
           IROp->Op != IR::OP_CONDJUMP &&
           IROp->Op != IR::OP_JUMP) {
-        std::stringstream Inst;
+        fextl::stringstream Inst;
         auto Name = FEXCore::IR::GetName(IROp->Op);
 
         if (IROp->HasDest) {
@@ -731,7 +802,7 @@ void *X86JITCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRLi
 
     if (DebugData) {
       DebugData->Subblocks.push_back({
-        static_cast<uint32_t>(BlockStartHostCode - GuestEntry),
+        static_cast<uint32_t>(BlockStartHostCode - CodeData.BlockBegin),
         static_cast<uint32_t>(getCurr<uint8_t *>() - BlockStartHostCode)
       });
     }
@@ -744,29 +815,41 @@ void *X86JITCore::CompileCode(uint64_t Entry, [[maybe_unused]] FEXCore::IR::IRLi
   }
   PendingTargetLabel = nullptr;
 
-  void *GuestExit = getCurr<void*>();
+  // Add the JitCodeTail
+  auto JITBlockTailLocation = getCurr<uint8_t *>();
+  auto JITBlockTail = getCurr<JITCodeTail*>();
+  setSize(getSize() + sizeof(JITCodeTail));
+
+  // Put the block's RIP entry in the tail.
+  // This will be used for RIP reconstruction in the future.
+  // TODO: This needs to be a data RIP relocation once code caching works.
+  //   Current relocation code doesn't support this feature yet.
+  JITBlockTail->RIP = Entry;
+
+  CodeHeader->OffsetToBlockTail = JITBlockTailLocation - CodeData.BlockBegin;
+
+  CodeData.Size = getCurr<uint8_t*>() - CodeData.BlockBegin;
+
+  JITBlockTail->Size = CodeData.Size;
+
   this->IR = nullptr;
 
   ready();
 
   if (DebugData) {
-    DebugData->HostCodeSize = reinterpret_cast<uintptr_t>(GuestExit) - reinterpret_cast<uintptr_t>(GuestEntry);
+    DebugData->HostCodeSize = CodeData.Size;
     DebugData->Relocations = &Relocations;
   }
 
-  return GuestEntry;
+  return CodeData;
 }
 
-std::unique_ptr<CPUBackend> CreateX86JITCore(FEXCore::Context::Context *ctx, FEXCore::Core::InternalThreadState *Thread) {
-  return std::make_unique<X86JITCore>(ctx, Thread);
+fextl::unique_ptr<CPUBackend> CreateX86JITCore(FEXCore::Context::ContextImpl *ctx, FEXCore::Core::InternalThreadState *Thread) {
+  return fextl::make_unique<X86JITCore>(ctx, Thread);
 }
 
 CPUBackendFeatures GetX86JITBackendFeatures() {
   return CPUBackendFeatures { };
 }
 
-void InitializeX86JITSignalHandlers(FEXCore::Context::Context *CTX) {
-  X86JITCore::InitializeSignalHandlers(CTX);
-}
-
 }

External/FEXCore/Source/Interface/Core/JIT/x86_64/JITClass.h

@@ -9,18 +9,20 @@ $end_info$
 #include <FEXCore/IR/RegisterAllocationData.h>
 #include "Interface/Core/BlockSamplingData.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include "Interface/Core/ObjectCache/Relocations.h"
 
-#define XBYAK64
-#include <xbyak/xbyak.h>
-#include <xbyak/xbyak_util.h>
-
 using namespace Xbyak;
 
+#include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/CPUBackend.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/IR/IntrusiveIRList.h>
 #include <FEXCore/Utils/MathUtils.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/unordered_map.h>
+#include <FEXCore/fextl/vector.h>
+
 #include "Interface/IR/Passes/RegisterAllocationPass.h"
 
 #include <tuple>
@@ -51,13 +53,13 @@ const std::array<Xbyak::Xmm, 11> RAXMM_x = {  xmm1, xmm2, xmm3, xmm4, xmm5, xmm6
 
 class X86JITCore final : public CPUBackend, public Xbyak::CodeGenerator {
 public:
-  explicit X86JITCore(FEXCore::Context::Context *ctx,
+  explicit X86JITCore(FEXCore::Context::ContextImpl *ctx,
                       FEXCore::Core::InternalThreadState *Thread);
   ~X86JITCore() override;
 
-  [[nodiscard]] std::string GetName() override { return "JIT"; }
+  [[nodiscard]] fextl::string GetName() override { return "JIT"; }
 
-  [[nodiscard]] void *CompileCode(uint64_t Entry,
+  [[nodiscard]] CPUBackend::CompiledCode CompileCode(uint64_t Entry,
                                   FEXCore::IR::IRListView const *IR,
                                   FEXCore::Core::DebugData *DebugData,
                                   FEXCore::IR::RegisterAllocationData *RAData, bool GDBEnabled) override;
@@ -68,8 +70,6 @@ public:
 
   void ClearCache() override;
 
-  static void InitializeSignalHandlers(FEXCore::Context::Context *CTX);
-
   void ClearRelocations() override { Relocations.clear(); }
 
 private:
@@ -123,7 +123,7 @@ private:
 
     void PlaceNamedSymbolLiteral(NamedSymbolLiteralPair &Lit);
 
-    std::vector<FEXCore::CPU::Relocation> Relocations;
+    fextl::vector<FEXCore::CPU::Relocation> Relocations;
 
     ///< Relocation code loading
     bool ApplyRelocations(uint64_t GuestEntry, uint64_t CodeEntry, uint64_t CursorEntry, size_t NumRelocations, const char* EntryRelocations);
@@ -135,11 +135,12 @@ private:
   /**  @} */
 
   Label* PendingTargetLabel{};
-  FEXCore::Context::Context *CTX;
+  FEXCore::Context::ContextImpl *CTX;
   FEXCore::IR::IRListView const *IR;
   uint64_t Entry;
+  CPUBackend::CompiledCode CodeData{};
 
-  std::unordered_map<IR::NodeID, Label> JumpTargets;
+  fextl::unordered_map<IR::NodeID, Label> JumpTargets;
   Xbyak::util::Cpu Features{};
 
   bool MemoryDebug = false;
@@ -150,7 +151,6 @@ private:
   constexpr static uint32_t NumGPRs = RA64.size(); // 4 is the minimum required for GPR ops
   constexpr static uint32_t NumXMMs = RAXMM.size();
   constexpr static uint32_t NumGPRPairs = RA64Pair.size();
-  constexpr static uint32_t RegisterCount = NumGPRs + NumXMMs + NumGPRPairs;
   constexpr static uint32_t RegisterClasses = 6;
 
   constexpr static uint64_t GPRBase = (0ULL << 32);
@@ -205,10 +205,6 @@ private:
   void EmitDetectionString();
 
   uint32_t SpillSlots{};
-  /**
-  * @brief Current guest RIP entrypoint
-  */
-  uint8_t *GuestEntry{};
 
   using SetCC = void (X86JITCore::*)(const Operand& op);
   using CMovCC = void (X86JITCore::*)(const Reg& reg, const Operand& op);
@@ -308,7 +304,6 @@ private:
   DEF_OP(AtomicFetchNeg);
 
   ///< Branch ops
-  DEF_OP(SignalReturn);
   DEF_OP(CallbackReturn);
   DEF_OP(ExitFunction);
   DEF_OP(Jump);
@@ -318,10 +313,12 @@ private:
   DEF_OP(ValidateCode);
   DEF_OP(ThreadRemoveCodeEntry);
   DEF_OP(CPUID);
+  DEF_OP(XGETBV);
 
   ///< Conversion ops
   DEF_OP(VInsGPR);
   DEF_OP(VCastFromGPR);
+  DEF_OP(VDupFromGPR);
   DEF_OP(Float_FromGPR_S);
   DEF_OP(Float_FToF);
   DEF_OP(Vector_UToF);
@@ -347,6 +344,10 @@ private:
   DEF_OP(StoreFlag);
   DEF_OP(LoadMem);
   DEF_OP(StoreMem);
+  DEF_OP(VLoadVectorMasked);
+  DEF_OP(VStoreVectorMasked);
+  DEF_OP(MemSet);
+  DEF_OP(MemCpy);
   DEF_OP(CacheLineClear);
   DEF_OP(CacheLineClean);
   DEF_OP(CacheLineZero);
@@ -409,6 +410,8 @@ private:
   DEF_OP(VZip2);
   DEF_OP(VUnZip);
   DEF_OP(VUnZip2);
+  DEF_OP(VTrn);
+  DEF_OP(VTrn2);
   DEF_OP(VBSL);
   DEF_OP(VCMPEQ);
   DEF_OP(VCMPEQZ);

External/FEXCore/Source/Interface/Core/JIT/x86_64/MemoryOps.cpp

@@ -6,7 +6,7 @@ $end_info$
 
 #include "Interface/Core/CPUID.h"
 #include "Interface/Core/JIT/x86_64/JITClass.h"
-
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/Utils/LogManager.h>
@@ -14,7 +14,6 @@ $end_info$
 #include <array>
 #include <stddef.h>
 #include <stdint.h>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 
@@ -766,6 +765,302 @@ DEF_OP(StoreMem) {
   }
 }
 
+DEF_OP(VLoadVectorMasked) {
+  const auto Op = IROp->C<IR::IROp_VLoadVectorMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto ElementSize = IROp->ElementSize;
+
+  const auto Dst = GetDst(Node);
+  const auto Mask = GetSrc(Op->Mask.ID());
+
+  const Xbyak::Reg MemReg = GetSrc<RA_64>(Op->Addr.ID());
+  const auto MemPtr = GenerateModRM(MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);
+
+  switch (ElementSize) {
+    case 4: {
+      if (Is256Bit) {
+        vmaskmovps(ToYMM(Dst), ToYMM(Mask), yword [MemPtr]);
+      } else {
+        vmaskmovps(Dst, Mask, xword [MemPtr]);
+      }
+      return;
+    }
+    case 8: {
+      if (Is256Bit) {
+        vmaskmovpd(ToYMM(Dst), ToYMM(Mask), yword [MemPtr]);
+      } else {
+        vmaskmovpd(Dst, Mask, xword [MemPtr]);
+      }
+      return;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled VLoadVectorMasked element size: {}", ElementSize);
+      return;
+  }
+}
+DEF_OP(VStoreVectorMasked) {
+  const auto Op = IROp->C<IR::IROp_VStoreVectorMasked>();
+  const auto OpSize = IROp->Size;
+
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+  const auto ElementSize = IROp->ElementSize;
+
+  const auto Data = GetDst(Op->Data.ID());
+  const auto Mask = GetSrc(Op->Mask.ID());
+
+  const Xbyak::Reg MemReg = GetSrc<RA_64>(Op->Addr.ID());
+  const auto MemPtr = GenerateModRM(MemReg, Op->Offset, Op->OffsetType, Op->OffsetScale);
+
+  switch (ElementSize) {
+    case 4: {
+      if (Is256Bit) {
+        vmaskmovps(yword [MemPtr], ToYMM(Mask), ToYMM(Data));
+      } else {
+        vmaskmovps(xword [MemPtr], Mask, Data);
+      }
+      return;
+    }
+    case 8: {
+      if (Is256Bit) {
+        vmaskmovpd(yword [MemPtr], ToYMM(Mask), ToYMM(Data));
+      } else {
+        vmaskmovpd(xword [MemPtr], Mask, Data);
+      }
+      return;
+    }
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled VStoreVectorMasked element size: {}", ElementSize);
+      return;
+  }
+}
+
+DEF_OP(MemSet) {
+  const auto Op = IROp->C<IR::IROp_MemSet>();
+
+  const int32_t Size = Op->Size;
+  const auto MemReg = GetSrc<RA_64>(Op->Addr.ID());
+  const auto Value = GetSrc<RA_64>(Op->Value.ID());
+  const auto Length = GetSrc<RA_64>(Op->Length.ID());
+  const auto Direction = GetSrc<RA_64>(Op->Direction.ID());
+  const auto Dst = GetSrc<RA_64>(Node);
+
+  // If Direction == 0 then:
+  //   MemReg is incremented (by size)
+  // else:
+  //   MemReg is decremented (by size)
+  //
+  // Counter is decremented regardless.
+
+  // TMP1 = rax
+  // TMP2 = rcx
+  // TMP4 = rdi
+  // That leaves us with TMP3 and TMP5
+  mov(rax, Value);
+  mov(rcx, Length);
+  mov(rdi, MemReg);
+
+  if (!Op->Prefix.IsInvalid()) {
+    add(rdi, GetSrc<RA_64>(Op->Prefix.ID()));
+  }
+
+  {
+    mov(TMP3, Length);
+    auto CalculateDest = [&]() {
+      mov(Dst, MemReg);
+      switch (Size) {
+        case 1:
+          break;
+        case 2:
+          shl(TMP3, 1);
+          break;
+        case 4:
+          shl(TMP3, 2);
+          break;
+        case 8:
+          shl(TMP3, 3);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    };
+
+    Label AfterDir;
+    Label BackwardDir;
+
+    cmp(Direction, 0);
+    jne(BackwardDir);
+    // Incrementing DF flag.
+    cld();
+    CalculateDest();
+    add(Dst, TMP3);
+    jmp(AfterDir);
+
+    L(BackwardDir);
+    // Decrementing DF flag.
+    std();
+    CalculateDest();
+    sub(Dst, TMP3);
+
+    L(AfterDir);
+  }
+
+  switch (Size) {
+    case 1:
+      rep(); stosb();
+      break;
+    case 2:
+      rep(); stosw();
+      break;
+    case 4:
+      rep(); stosd();
+      break;
+    case 8:
+      rep(); stosq();
+      break;
+    default:
+      LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+      break;
+  }
+  // Ensure we set DF back to zero. Required by the ABI.
+  cld();
+}
+
+DEF_OP(MemCpy) {
+  const auto Op = IROp->C<IR::IROp_MemCpy>();
+
+  const int32_t Size = Op->Size;
+  const auto MemRegDest = GetSrc<RA_64>(Op->AddrDest.ID());
+  const auto MemRegSrc = GetSrc<RA_64>(Op->AddrSrc.ID());
+
+  const auto Length = GetSrc<RA_64>(Op->Length.ID());
+  const auto Direction = GetSrc<RA_64>(Op->Direction.ID());
+
+  // If Direction == 0 then:
+  //   MemRegDest is incremented (by size)
+  //   MemRegSrc is incremented (by size)
+  // else:
+  //   MemRegDest is decremented (by size)
+  //   MemRegSrc is decremented (by size)
+  //
+  // Counter is decremented regardless.
+
+  // TMP1 = Length
+  // TMP2 = Dest
+  // TMP3 = Src
+  // TMP4 = Temp value
+  mov(TMP1, Length);
+  mov(TMP2, MemRegDest);
+  mov(TMP3, MemRegSrc);
+  if (!Op->PrefixDest.IsInvalid()) {
+    add(TMP2, GetSrc<RA_64>(Op->PrefixDest.ID()));
+  }
+  if (!Op->PrefixSrc.IsInvalid()) {
+    add(TMP3, GetSrc<RA_64>(Op->PrefixSrc.ID()));
+  }
+
+  auto Dst = GetSrcPair<RA_64>(Node);
+  Label Done;
+  Label BackwardImpl;
+  cmp(Direction, 0);
+  jne(BackwardImpl);
+
+  // Emit forward direction memcpy then backward direction memcpy.
+  for (int32_t Direction :  { 1, -1 }) {
+    Label DoneInternal;
+    Label AgainInternal;
+
+    L(AgainInternal);
+    cmp(TMP1, 0);
+    je(DoneInternal);
+
+    {
+      switch (Size) {
+        case 1:
+          movzx(TMP4, byte [TMP3]);
+          mov(byte [TMP2], TMP4.cvt8());
+          break;
+        case 2:
+          movzx(TMP4, word [TMP3]);
+          mov(word [TMP2], TMP4.cvt16());
+          break;
+        case 4:
+          mov(TMP4.cvt32(), dword [TMP3]);
+          mov(dword [TMP2], TMP4.cvt32());
+          break;
+        case 8:
+          mov(TMP4, qword [TMP3]);
+          mov(qword [TMP2], TMP4);
+          break;
+        default:
+          LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+          break;
+      }
+    }
+
+    if (Direction == 1) {
+      // Incrementing pointers
+      add(TMP2, Size);
+      add(TMP3, Size);
+    }
+    else {
+      // Decrementing pointers
+      sub(TMP2, Size);
+      sub(TMP3, Size);
+    }
+
+    // Decrement counter by one
+    sub(TMP1, 1);
+
+    jmp(AgainInternal);
+    L(DoneInternal);
+
+    // Pointer math using source pointers and length.
+    mov(TMP3, Length);
+    switch (Size) {
+      case 1:
+        break;
+      case 2:
+        shl(TMP3, 1);
+        break;
+      case 4:
+        shl(TMP3, 2);
+        break;
+      case 8:
+        shl(TMP3, 3);
+        break;
+      default:
+        LOGMAN_MSG_A_FMT("Unhandled {} size: {}", __func__, Size);
+        break;
+    }
+
+    // Needs to use temporaries just in case of overwrite
+    mov(TMP1, MemRegDest);
+    mov(TMP2, MemRegSrc);
+
+    mov(Dst.first, TMP1);
+    mov(Dst.second, TMP2);
+
+    if (Direction == 1) {
+      // Incrementing pointers
+      add(Dst.first, TMP3);
+      add(Dst.second, TMP3);
+
+      jmp(Done);
+      L(BackwardImpl);
+    }
+    else {
+      // Decrementing pointers
+      sub(Dst.first, TMP3);
+      sub(Dst.second, TMP3);
+    }
+  }
+
+  L(Done);
+}
+
 DEF_OP(CacheLineClear) {
   auto Op = IROp->C<IR::IROp_CacheLineClear>();
 
@@ -820,6 +1115,10 @@ void X86JITCore::RegisterMemoryHandlers() {
   REGISTER_OP(STOREMEM,            StoreMem);
   REGISTER_OP(LOADMEMTSO,          LoadMem);
   REGISTER_OP(STOREMEMTSO,         StoreMem);
+  REGISTER_OP(VLOADVECTORMASKED,   VLoadVectorMasked);
+  REGISTER_OP(VSTOREVECTORMASKED,  VStoreVectorMasked);
+  REGISTER_OP(MEMSET,              MemSet);
+  REGISTER_OP(MEMCPY,              MemCpy);
   REGISTER_OP(CACHELINECLEAR,      CacheLineClear);
   REGISTER_OP(CACHELINECLEAN,      CacheLineClean);
   REGISTER_OP(CACHELINEZERO,       CacheLineZero);

External/FEXCore/Source/Interface/Core/JIT/x86_64/MiscOps.cpp

@@ -6,6 +6,7 @@ $end_info$
 
 #include "Interface/Context/Context.h"
 #include "Interface/Core/Dispatcher/Dispatcher.h"
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include "Interface/Core/JIT/x86_64/JITClass.h"
 #include "FEXCore/Debug/InternalThreadState.h"
 
@@ -16,7 +17,6 @@ $end_info$
 #include <array>
 #include <stddef.h>
 #include <stdint.h>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 #define DEF_OP(x) void X86JITCore::Op_##x(IR::IROp_Header *IROp, IR::NodeID Node)
@@ -24,7 +24,7 @@ namespace FEXCore::CPU {
 DEF_OP(GuestOpcode) {
   auto Op = IROp->C<IR::IROp_GuestOpcode>();
   // metadata
-  DebugData->GuestOpcodes.push_back({Op->GuestEntryOffset, getCurr<uint8_t*>() - GuestEntry});
+  DebugData->GuestOpcodes.push_back({Op->GuestEntryOffset, getCurr<uint8_t*>() - CodeData.BlockBegin});
 }
 
 DEF_OP(Fence) {
@@ -43,6 +43,7 @@ DEF_OP(Fence) {
   }
 }
 
+#ifndef _WIN32
 DEF_OP(Break) {
   auto Op = IROp->C<IR::IROp_Break>();
 
@@ -79,6 +80,11 @@ DEF_OP(Break) {
     break;
   }
 }
+#else
+DEF_OP(Break) {
+  ERROR_AND_DIE_FMT("Unsupported");
+}
+#endif
 
 DEF_OP(GetRoundingMode) {
   auto Dst = GetDst<RA_32>(Node);

External/FEXCore/Source/Interface/Core/JIT/x86_64/MoveOps.cpp

@@ -5,7 +5,7 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
-
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/IR/IR.h>
 

External/FEXCore/Source/Interface/Core/JIT/x86_64/VectorOps.cpp

@@ -5,14 +5,13 @@ $end_info$
 */
 
 #include "Interface/Core/JIT/x86_64/JITClass.h"
-
+#include "Interface/Core/Dispatcher/X86Dispatcher.h"
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/Utils/LogManager.h>
 
 #include <array>
 #include <stddef.h>
 #include <stdint.h>
-#include <xbyak/xbyak.h>
 
 namespace FEXCore::CPU {
 
@@ -1944,7 +1943,7 @@ DEF_OP(VUnZip2) {
       }
       case 8: {
         if (Is256Bit) {
-          vshufpd(ToYMM(Dst), ToYMM(VectorLower), ToYMM(VectorUpper), 0b1'1);
+          vshufpd(ToYMM(Dst), ToYMM(VectorLower), ToYMM(VectorUpper), 0b11'11);
           vpermq(ToYMM(Dst), ToYMM(Dst), 0b11'01'10'00);
         } else {
           vshufpd(Dst, VectorLower, VectorUpper, 0b1'1);
@@ -1958,6 +1957,191 @@ DEF_OP(VUnZip2) {
   }
 }
 
+DEF_OP(VTrn) {
+  const auto Op = IROp->C<IR::IROp_VTrn>();
+  const auto OpSize = IROp->Size;
+
+  const auto ElementSize = Op->Header.ElementSize;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto VectorLower = GetSrc(Op->VectorLower.ID());
+  const auto VectorUpper = GetSrc(Op->VectorUpper.ID());
+
+  const auto LoadPshufbReg = [&](Xbyak::Xmm reg, uint64_t lower) {
+    mov(rax, lower);
+    mov(rcx, 0x80'80'80'80'80'80'80'80);
+    vmovq(reg, rax);
+    pinsrq(reg, rcx, 1);
+  };
+
+  switch (ElementSize) {
+  case 1: {
+    LoadPshufbReg(xmm15, 0x0E'0C'0A'08'06'04'02'00);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpcklbw(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpcklbw(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  case 2: {
+    LoadPshufbReg(xmm15, 0x0D'0C'09'08'05'04'01'00);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpcklwd(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpcklwd(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  case 4: {
+    LoadPshufbReg(xmm15, 0x0B'0A'09'08'03'02'01'00);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpckldq(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpckldq(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  case 8: {
+    LoadPshufbReg(xmm15, 0x07'06'05'04'03'02'01'00);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpcklqdq(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpcklqdq(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  default:
+    LOGMAN_MSG_A_FMT("Unknown Element Size: {}", ElementSize);
+    return;
+  }
+}
+
+DEF_OP(VTrn2) {
+  const auto Op = IROp->C<IR::IROp_VTrn2>();
+  const auto OpSize = IROp->Size;
+
+  const auto ElementSize = Op->Header.ElementSize;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto Dst = GetDst(Node);
+  const auto VectorLower = GetSrc(Op->VectorLower.ID());
+  const auto VectorUpper = GetSrc(Op->VectorUpper.ID());
+
+  const auto LoadPshufbReg = [&](Xbyak::Xmm reg, uint64_t lower) {
+    mov(rax, lower);
+    mov(rcx, 0x80'80'80'80'80'80'80'80);
+    vmovq(reg, rax);
+    pinsrq(reg, rcx, 1);
+  };
+
+  switch (ElementSize) {
+  case 1: {
+    LoadPshufbReg(xmm15, 0x0F'0D'0B'09'07'05'03'01);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpcklbw(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpcklbw(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  case 2: {
+    LoadPshufbReg(xmm15, 0x0F'0E'0B'0A'07'06'03'02);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpcklwd(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpcklwd(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  case 4: {
+    LoadPshufbReg(xmm15, 0x0F'0E'0D'0C'07'06'05'04);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpckldq(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpckldq(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  case 8: {
+    LoadPshufbReg(xmm15, 0x0F'0E'0D'0C'0B'0A'09'08);
+
+    if (Is256Bit) {
+      vinserti128(ymm15, ymm15, xmm15, 1);
+
+      vpshufb(ymm14, ToYMM(VectorLower), ymm15);
+      vpshufb(ymm13, ToYMM(VectorUpper), ymm15);
+
+      vpunpcklqdq(ToYMM(Dst), ymm14, ymm13);
+    } else {
+      vpshufb(xmm14, VectorLower, xmm15);
+      vpshufb(xmm13, VectorUpper, xmm15);
+      vpunpcklqdq(Dst, xmm14, xmm13);
+    }
+    break;
+  }
+  default:
+    LOGMAN_MSG_A_FMT("Unknown Element Size: {}", ElementSize);
+    return;
+  }
+}
 
 DEF_OP(VBSL) {
   const auto Op = IROp->C<IR::IROp_VBSL>();
@@ -2541,11 +2725,71 @@ DEF_OP(VFCMPUNO) {
 }
 
 DEF_OP(VUShl) {
-  LOGMAN_MSG_A_FMT("Unimplemented");
+  const auto Op = IROp->C<IR::IROp_VUShl>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto ElementSize = IROp->ElementSize;
+  LOGMAN_THROW_AA_FMT(ElementSize == 4 || ElementSize == 8,
+                      "VUShl only supports 32-bit and 64-bit elements");
+
+  const auto Dst = GetDst(Node);
+  const auto ShiftVector = GetSrc(Op->ShiftVector.ID());
+  const auto Vector = GetSrc(Op->Vector.ID());
+
+  switch (ElementSize) {
+  case 4:
+    if (Is256Bit) {
+      vpsllvd(ToYMM(Dst), ToYMM(Vector), ToYMM(ShiftVector));
+    } else {
+      vpsllvd(Dst, Vector, ShiftVector);
+    }
+    return;
+  case 8:
+    if (Is256Bit) {
+      vpsllvq(ToYMM(Dst), ToYMM(Vector), ToYMM(ShiftVector));
+    } else {
+      vpsllvq(Dst, Vector, ShiftVector);
+    }
+    return;
+  default:
+    LOGMAN_MSG_A_FMT("Unknown Element Size: {}", ElementSize);
+    return;
+  }
 }
 
 DEF_OP(VUShr) {
-  LOGMAN_MSG_A_FMT("Unimplemented");
+  const auto Op = IROp->C<IR::IROp_VUShr>();
+  const auto OpSize = IROp->Size;
+  const auto Is256Bit = OpSize == Core::CPUState::XMM_AVX_REG_SIZE;
+
+  const auto ElementSize = IROp->ElementSize;
+  LOGMAN_THROW_AA_FMT(ElementSize == 4 || ElementSize == 8,
+                      "VUShr only supports 32-bit and 64-bit elements");
+
+  const auto Dst = GetDst(Node);
+  const auto ShiftVector = GetSrc(Op->ShiftVector.ID());
+  const auto Vector = GetSrc(Op->Vector.ID());
+
+  switch (ElementSize) {
+  case 4:
+    if (Is256Bit) {
+      vpsrlvd(ToYMM(Dst), ToYMM(Vector), ToYMM(ShiftVector));
+    } else {
+      vpsrlvd(Dst, Vector, ShiftVector);
+    }
+    return;
+  case 8:
+    if (Is256Bit) {
+      vpsrlvq(ToYMM(Dst), ToYMM(Vector), ToYMM(ShiftVector));
+    } else {
+      vpsrlvq(Dst, Vector, ShiftVector);
+    }
+    return;
+  default:
+    LOGMAN_MSG_A_FMT("Unknown Element Size: {}", ElementSize);
+    return;
+  }
 }
 
 DEF_OP(VSShr) {
@@ -3147,6 +3391,23 @@ DEF_OP(VShlI) {
   const auto Vector = GetSrc(Op->Vector.ID());
 
   switch (ElementSize) {
+    case 1: {
+      const auto Mask = 0xFFU >> BitShift;
+
+      mov(rax, Mask);
+      vmovq(xmm15, rax);
+
+      if (Is256Bit) {
+        vpsllw(ToYMM(Dst), ToYMM(Vector), BitShift);
+        vpbroadcastb(ymm15, xmm15);
+        vpand(ToYMM(Dst), ToYMM(Dst), ymm15);
+      } else {
+        vpsllw(Dst, Vector, BitShift);
+        vpbroadcastb(xmm15, xmm15);
+        vpand(Dst, Dst, ymm15);
+      }
+      break;
+    }
     case 2: {
       if (Is256Bit) {
         vpsllw(ToYMM(Dst), ToYMM(Vector), BitShift);
@@ -4304,6 +4565,8 @@ void X86JITCore::RegisterVectorHandlers() {
   REGISTER_OP(VZIP2,             VZip2);
   REGISTER_OP(VUNZIP,            VUnZip);
   REGISTER_OP(VUNZIP2,           VUnZip2);
+  REGISTER_OP(VTRN,              VTrn);
+  REGISTER_OP(VTRN2,             VTrn2);
   REGISTER_OP(VBSL,              VBSL);
   REGISTER_OP(VCMPEQ,            VCMPEQ);
   REGISTER_OP(VCMPEQZ,           VCMPEQZ);

External/FEXCore/Source/Interface/Core/LookupCache.cpp

@@ -11,15 +11,15 @@ $end_info$
 #include "Interface/Context/Context.h"
 #include "Interface/Core/LookupCache.h"
 
-#include <sys/mman.h>
-
 namespace FEXCore {
-LookupCache::LookupCache(FEXCore::Context::Context *CTX)
-  : ctx {CTX} {
+LookupCache::LookupCache(FEXCore::Context::ContextImpl *CTX)
+  : BlockLinks_mbr { fextl::pmr::get_default_resource() }
+  , ctx {CTX} {
 
   TotalCacheSize = ctx->Config.VirtualMemSize / 4096 * 8 + CODE_SIZE + L1_SIZE;
+  BlockLinks_pma = fextl::make_unique<std::pmr::polymorphic_allocator<std::byte>>(&BlockLinks_mbr);
   // Setup our PMR map.
-  BlockLinks = BlockLinks_pma.new_object<BlockLinksMapType>();
+  BlockLinks = BlockLinks_pma->new_object<BlockLinksMapType>();
 
   // Block cache ends up looking like this
   // PageMemoryMap[VirtualMemoryRegion >> 12]
@@ -33,7 +33,7 @@ LookupCache::LookupCache(FEXCore::Context::Context *CTX)
   // Allocate a region of memory that we can use to back our block pointers
   // We need one pointer per page of virtual memory
   // At 64GB of virtual memory this will allocate 128MB of virtual memory space
-  PagePointer = reinterpret_cast<uintptr_t>(FEXCore::Allocator::mmap(nullptr, TotalCacheSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0));
+  PagePointer = reinterpret_cast<uintptr_t>(FEXCore::Allocator::VirtualAlloc(TotalCacheSize));
 
   // Allocate our memory backing our pages
   // We need 32KB per guest page (One pointer per byte)
@@ -52,7 +52,7 @@ LookupCache::LookupCache(FEXCore::Context::Context *CTX)
 
 LookupCache::~LookupCache() {
   const size_t TotalCacheSize = ctx->Config.VirtualMemSize / 4096 * 8 + CODE_SIZE + L1_SIZE;
-  FEXCore::Allocator::munmap(reinterpret_cast<void*>(PagePointer), TotalCacheSize);
+  FEXCore::Allocator::VirtualFree(reinterpret_cast<void*>(PagePointer), TotalCacheSize);
 
   // No need to free BlockLinks map.
   // These will get freed when their memory allocators are deallocated.
@@ -62,7 +62,7 @@ void LookupCache::ClearL2Cache() {
   std::lock_guard<std::recursive_mutex> lk(WriteLock);
   // Clear out the page memory
   // PagePointer and PageMemory are sequential with each other. Clear both at once.
-  madvise(reinterpret_cast<void*>(PagePointer), ctx->Config.VirtualMemSize / 4096 * 8 + CODE_SIZE, MADV_DONTNEED);
+  FEXCore::Allocator::VirtualDontNeed(reinterpret_cast<void*>(PagePointer), ctx->Config.VirtualMemSize / 4096 * 8 + CODE_SIZE);
   AllocateOffset = 0;
 }
 
@@ -70,11 +70,9 @@ void LookupCache::ClearCache() {
   std::lock_guard<std::recursive_mutex> lk(WriteLock);
 
   // Clear L1 and L2 by clearing the full cache.
-  madvise(reinterpret_cast<void*>(PagePointer), TotalCacheSize, MADV_DONTNEED);
-  // Clear the BlockLinks allocator which frees the BlockLinks map implicitly.
-  BlockLinks_mbr.release();
+  FEXCore::Allocator::VirtualDontNeed(reinterpret_cast<void*>(PagePointer), TotalCacheSize);
   // Allocate a new pointer from the BlockLinks pma again.
-  BlockLinks = BlockLinks_pma.new_object<BlockLinksMapType>();
+  BlockLinks = BlockLinks_pma->new_object<BlockLinksMapType>();
   // All code is gone, clear the block list
   BlockList.clear();
 }

External/FEXCore/Source/Interface/Core/LookupCache.h

@@ -1,30 +1,28 @@
 #pragma once
+#include "Interface/Context/Context.h"
 #include <FEXCore/Utils/LogManager.h>
+#include <FEXCore/fextl/map.h>
+#include <FEXCore/fextl/memory_resource.h>
+#include <FEXCore/fextl/robin_map.h>
+#include <FEXCore/fextl/vector.h>
+#include <FEXCore/fextl/memory_resource.h>
 
 #include <cstdint>
 #include <functional>
-#include <map>
-#include <memory_resource>
 #include <stddef.h>
 #include <utility>
-#include <vector>
 #include <mutex>
-#include <tsl/robin_map.h>
 
 namespace FEXCore {
-namespace Context {
-  struct Context;
-}
 
 class LookupCache {
 public:
-
   struct LookupCacheEntry {
     uintptr_t HostCode;
     uintptr_t GuestCode;
   };
 
-  LookupCache(FEXCore::Context::Context *CTX);
+  LookupCache(FEXCore::Context::ContextImpl *CTX);
   ~LookupCache();
 
   uintptr_t FindBlock(uint64_t Address) {
@@ -69,7 +67,7 @@ public:
     return 0;
   }
 
-  std::map<uint64_t, std::vector<uint64_t>> CodePages;
+  fextl::map<uint64_t, fextl::vector<uint64_t>> CodePages;
 
   // Appends Block {Address} to CodePages [Start, Start + Length)
   // Returns true if new pages are marked as containing code
@@ -170,8 +168,6 @@ public:
 
 private:
   void CacheBlockMapping(uint64_t Address, uintptr_t HostCode) {
-    std::lock_guard<std::recursive_mutex> lk(WriteLock);
-
     // Do L1
     auto &L1Entry = reinterpret_cast<LookupCacheEntry*>(L1Pointer)[Address & L1_ENTRIES_MASK];
     L1Entry.GuestCode = Address;
@@ -247,10 +243,10 @@ private:
   // This makes `BlockLinks` look like a raw pointer that could memory leak, but since it is backed by the MBR, it won't.
   std::pmr::monotonic_buffer_resource BlockLinks_mbr;
   using BlockLinksMapType = std::pmr::map<BlockLinkTag, std::function<void()>>;
-  std::pmr::polymorphic_allocator<std::byte> BlockLinks_pma {&BlockLinks_mbr};
+  fextl::unique_ptr<std::pmr::polymorphic_allocator<std::byte>> BlockLinks_pma;
   BlockLinksMapType *BlockLinks;
 
-  tsl::robin_map<uint64_t, uint64_t> BlockList;
+  fextl::robin_map<uint64_t, uint64_t> BlockList;
 
   size_t TotalCacheSize;
 
@@ -260,7 +256,7 @@ private:
 
   size_t AllocateOffset {};
 
-  FEXCore::Context::Context *ctx;
+  FEXCore::Context::ContextImpl *ctx;
   uint64_t VirtualMemSize{};
 };
 }

External/FEXCore/Source/Interface/Core/ObjectCache/CodeObjectSerializationConfig.h

@@ -1,12 +1,16 @@
 #pragma once
 
+#include <FEXCore/Utils/CompilerDefs.h>
+
 #include <cstdint>
 
 namespace FEXCore::CodeSerialize {
   // If any of the config options mismatch on load then the cache won't be used
   // Any of these will result in codegen changes
-  struct CodeObjectSerializationConfig {
-		// Cookie in the header of the file, isn't part of the config hash
+  struct
+  FEX_PACKED
+  CodeObjectSerializationConfig {
+    // Cookie in the header of the file, isn't part of the config hash
     uint64_t Cookie{};
 
     // Instructions per block configuration
@@ -16,41 +20,45 @@ namespace FEXCore::CodeSerialize {
     unsigned Arch : 4;
 
     // Multiblock enabled
-    bool MultiBlock : 1;
+    unsigned MultiBlock : 1;
+
+    // Hardware TSO enabled
+    unsigned HardwareTSOEnabled : 1;
 
     // TSO enabled
-    bool TSOEnabled : 1;
+    unsigned TSOEnabled : 1;
 
     // ABI local flag unsafe optimization
-    bool ABILocalFlags : 1;
+    unsigned ABILocalFlags : 1;
 
     // ABI no PF unsafe optimization
-    bool ABINoPF : 1;
+    unsigned ABINoPF : 1;
 
     // Static register allocation enabled
-    bool SRA : 1;
+    unsigned SRA : 1;
 
     // Paranoid TSO mode enabled
-    bool ParanoidTSO : 1;
+    unsigned ParanoidTSO : 1;
 
     // Guest code execution mode (We don't support live mode switch)
-    bool Is64BitMode : 1;
+    unsigned Is64BitMode : 1;
 
     // SMC checks style
     unsigned SMCChecks : 2;
 
     // x87 reduced precision
-    bool x87ReducedPrecision : 1;
+    unsigned x87ReducedPrecision : 1;
 
     // Padding to remove uninitialized data warning from asan
     // Shows remaining amount of bits available for config
-    unsigned _Pad : 18;
+    unsigned _Pad : 17;
 
     bool operator==(CodeObjectSerializationConfig const &other) const {
       return Cookie == other.Cookie &&
         MaxInstPerBlock == other.MaxInstPerBlock &&
         Arch == other.Arch &&
         MultiBlock == other.MultiBlock &&
+        HardwareTSOEnabled == other.HardwareTSOEnabled &&
         TSOEnabled == other.TSOEnabled &&
         ABILocalFlags == other.ABILocalFlags &&
         ABINoPF == other.ABINoPF &&
@@ -67,6 +75,7 @@ namespace FEXCore::CodeSerialize {
       Hash <<= 32; Hash |= other.MaxInstPerBlock;
       Hash <<= 1;  Hash |= other.Arch;
       Hash <<= 1;  Hash |= other.MultiBlock;
+      Hash <<= 1;  Hash |= other.HardwareTSOEnabled;
       Hash <<= 1;  Hash |= other.TSOEnabled;
       Hash <<= 1;  Hash |= other.ABILocalFlags;
       Hash <<= 1;  Hash |= other.ABINoPF;
@@ -79,6 +88,6 @@ namespace FEXCore::CodeSerialize {
     }
   };
 
-	static_assert(sizeof(CodeObjectSerializationConfig) == 16, "Size changed");
+  static_assert(sizeof(CodeObjectSerializationConfig) == 16, "Size changed");
   static_assert((sizeof(CodeObjectSerializationConfig) - sizeof(uint64_t)) == 8, "Config size exceeded 64its. Need to change how the hash is generated!");
 }

External/FEXCore/Source/Interface/Core/ObjectCache/JobHandling.cpp

@@ -2,25 +2,24 @@
 #include "Interface/Core/ObjectCache/ObjectCacheService.h"
 
 #include <FEXCore/Config/Config.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXHeaderUtils/Filesystem.h>
 
 #include <fcntl.h>
-#include <filesystem>
-#include <memory>
-#include <string>
-#include <sys/uio.h>
-#include <sys/mman.h>
 #include <xxhash.h>
 
 namespace FEXCore::CodeSerialize {
-  void AsyncJobHandler::AsyncAddNamedRegionJob(uintptr_t Base, uintptr_t Size, uintptr_t Offset, const std::string &filename) {
+  void AsyncJobHandler::AsyncAddNamedRegionJob(uintptr_t Base, uintptr_t Size, uintptr_t Offset, const fextl::string &filename) {
+#ifndef _WIN32
     // This function adds a named region *JOB* to our named region handler
     // This needs to be as fast as possible to keep out of the way of the JIT
 
-    auto BaseFilename = std::filesystem::path(filename).filename().string();
+    const fextl::string BaseFilename = FHU::Filesystem::GetFilename(filename);
 
     if (!BaseFilename.empty()) {
       // Create a new entry that once set up will be put in to our section object map
-      auto Entry = std::make_unique<CodeRegionEntry>(
+      auto Entry = fextl::make_unique<CodeRegionEntry>(
         Base,
         Size,
         Offset,
@@ -77,12 +76,14 @@ namespace FEXCore::CodeSerialize {
       // Tell the async thread that it has work to do
       CodeObjectCacheService->NotifyWork();
     }
+#endif
   }
 
   void AsyncJobHandler::AsyncRemoveNamedRegionJob(uintptr_t Base, uintptr_t Size) {
+#ifndef _WIN32
     // Removing a named region through the job system
     // We need to find the entry that we are deleting first
-    std::unique_ptr<CodeRegionEntry> EntryPointer;
+    fextl::unique_ptr<CodeRegionEntry> EntryPointer;
     {
       std::unique_lock lk {CodeObjectCacheService->GetEntryMapMutex()};
 
@@ -119,9 +120,10 @@ namespace FEXCore::CodeSerialize {
       // Tell the async thread that it has work to do
       CodeObjectCacheService->NotifyWork();
     }
+#endif
   }
 
-  void AsyncJobHandler::AsyncAddSerializationJob(std::unique_ptr<SerializationJobData> Data) {
+  void AsyncJobHandler::AsyncAddSerializationJob(fextl::unique_ptr<SerializationJobData> Data) {
     // XXX: Actually add serialization job
   }
 }

External/FEXCore/Source/Interface/Core/ObjectCache/NamedRegionObjectHandler.cpp

@@ -1,10 +1,12 @@
 #include "Interface/Context/Context.h"
 #include "Interface/Core/ObjectCache/ObjectCacheService.h"
 
-#include <FEXCore/Config/Config.h>
+
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/string.h>
 
 namespace FEXCore::CodeSerialize {
-  NamedRegionObjectHandler::NamedRegionObjectHandler(FEXCore::Context::Context *ctx) {
+  NamedRegionObjectHandler::NamedRegionObjectHandler(FEXCore::Context::ContextImpl *ctx) {
     DefaultSerializationConfig.Cookie = CODE_COOKIE;
 
     // Initialize the Arch from CPUID
@@ -23,14 +25,14 @@ namespace FEXCore::CodeSerialize {
     DefaultSerializationConfig.x87ReducedPrecision = ctx->Config.x87ReducedPrecision;
   }
 
-  void NamedRegionObjectHandler::AddNamedRegionObject(CodeRegionMapType::iterator Entry, const std::string &base_filename, const std::string &filename, bool Executable) {
+  void NamedRegionObjectHandler::AddNamedRegionObject(CodeRegionMapType::iterator Entry, const fextl::string &base_filename, const fextl::string &filename, bool Executable) {
     // XXX: Add named region objects
 
     // XXX: Until entry loading is complete just claim it is loaded
     Entry->second->NamedJobRefCountMutex.unlock();
   }
 
-  void NamedRegionObjectHandler::RemoveNamedRegionObject(uintptr_t Base, uintptr_t Size, std::unique_ptr<CodeRegionEntry> Entry) {
+  void NamedRegionObjectHandler::RemoveNamedRegionObject(uintptr_t Base, uintptr_t Size, fextl::unique_ptr<CodeRegionEntry> Entry) {
     // XXX: Remove named region objects
 
     // XXX: Until entry loading is complete just claim it is loaded
@@ -40,7 +42,7 @@ namespace FEXCore::CodeSerialize {
   void NamedRegionObjectHandler::HandleNamedRegionObjectJobs() {
     // Walk through all of our jobs sequentially until the work queue is empty
     while (NamedWorkQueueJobs.load()) {
-      std::unique_ptr<AsyncJobHandler::NamedRegionWorkItem> WorkItem;
+      fextl::unique_ptr<AsyncJobHandler::NamedRegionWorkItem> WorkItem;
 
       {
         // Lock the work queue mutex for a short moment and grab an item from the list

External/FEXCore/Source/Interface/Core/ObjectCache/ObjectCacheService.cpp

@@ -1,8 +1,8 @@
 #include "Interface/Core/ObjectCache/ObjectCacheService.h"
 
 #include <FEXCore/Config/Config.h>
-
-#include <memory>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/Utils/Threads.h>
 
 namespace {
   static void* ThreadHandler(void *Arg) {
@@ -13,7 +13,7 @@ namespace {
 }
 
 namespace FEXCore::CodeSerialize {
-  CodeObjectSerializeService::CodeObjectSerializeService(FEXCore::Context::Context *ctx)
+  CodeObjectSerializeService::CodeObjectSerializeService(FEXCore::Context::ContextImpl *ctx)
     : CTX {ctx}
     , AsyncHandler { &NamedRegionHandler , this }
     , NamedRegionHandler { ctx } {
@@ -38,13 +38,13 @@ namespace FEXCore::CodeSerialize {
 
   void CodeObjectSerializeService::Initialize() {
     // Add a canary so we don't crash on empty map iterator handling
-    auto it = AddressToEntryMap.insert_or_assign(~0ULL, std::make_unique<CodeRegionEntry>());
-		UnrelocatedAddressToEntryMap.insert_or_assign(~0ULL, it.first->second.get());
+    auto it = AddressToEntryMap.insert_or_assign(~0ULL, fextl::make_unique<CodeRegionEntry>());
+    UnrelocatedAddressToEntryMap.insert_or_assign(~0ULL, it.first->second.get());
 
-		uint64_t OldMask = FEXCore::Threads::SetSignalMask(~0ULL);
-		WorkerThread = FEXCore::Threads::Thread::Create(ThreadHandler, this);
+    uint64_t OldMask = FEXCore::Threads::SetSignalMask(~0ULL);
+    WorkerThread = FEXCore::Threads::Thread::Create(ThreadHandler, this);
     FEXCore::Threads::SetSignalMask(OldMask);
-	}
+  }
 
   void CodeObjectSerializeService::DoCodeRegionClosure(uint64_t Base, CodeRegionEntry *it) {
     if (Base == ~0ULL) {
@@ -61,8 +61,7 @@ namespace FEXCore::CodeSerialize {
 
   void CodeObjectSerializeService::ExecutionThread() {
     // Set our thread name so we can see its relation
-    char ThreadName[16] = "ObjectCodeSeri\0";
-    pthread_setname_np(pthread_self(), ThreadName);
+    FEXCore::Threads::SetThreadName("ObjectCodeSeri\0");
     while (WorkerThreadShuttingDown.load() != true) {
       // Wait for work
       WorkAvailable.Wait();
@@ -81,5 +80,5 @@ namespace FEXCore::CodeSerialize {
     // Safely clear our maps now
     AddressToEntryMap.clear();
     UnrelocatedAddressToEntryMap.clear();
-	}
+  }
 }

External/FEXCore/Source/Interface/Core/ObjectCache/ObjectCacheService.h

@@ -6,13 +6,14 @@
 
 #include <FEXCore/Utils/Event.h>
 #include <FEXCore/Utils/Threads.h>
+#include <FEXCore/fextl/map.h>
+#include <FEXCore/fextl/memory.h>
+#include <FEXCore/fextl/queue.h>
+#include <FEXCore/fextl/robin_map.h>
+#include <FEXCore/fextl/string.h>
+#include <FEXCore/fextl/vector.h>
 
-#include <map>
-#include <memory>
 #include <shared_mutex>
-#include <string>
-#include <vector>
-#include <tsl/robin_map.h>
 
 namespace FEXCore::CodeSerialize {
   // XXX: Does this need to be signal safe?
@@ -66,13 +67,13 @@ namespace FEXCore::CodeSerialize {
       uint64_t Offset{};
 
       // Filename of the object
-      std::string Filename{};
+      fextl::string Filename{};
 
       CodeObjectSerializationHeader EntryHeader{};
     /**  @} */
 
     // The filename of the object cache for this entry
-    std::string ObjectEntrySourceFilename{};
+    fextl::string ObjectEntrySourceFilename{};
 
     // In the case of file corruption that we can detect, we can disable serialization early for an entry
     // We should be resiliant to corruption but things happen
@@ -105,12 +106,12 @@ namespace FEXCore::CodeSerialize {
         char *CodeData{};
         size_t FileSize{};
 
-        std::vector<CodeObjectFileSection> FileCodeSections;
+        fextl::vector<CodeObjectFileSection> FileCodeSections;
       /**  @} */
 
       // This per section map takes the most time to load and needs to be quick
       // This is the map of all code segments for this entry
-      tsl::robin_map<uint64_t, CodeObjectFileSection*> SectionLookupMap{};
+      fextl::robin_map<uint64_t, CodeObjectFileSection*> SectionLookupMap{};
     /**  @} */
 
     // Default initialization
@@ -120,7 +121,7 @@ namespace FEXCore::CodeSerialize {
     CodeRegionEntry(uint64_t Base,
       uint64_t Size,
       uint64_t Offset,
-      std::string const &Filename,
+      fextl::string const &Filename,
       CodeObjectSerializationHeader const &DefaultHeader)
       : Base {Base}
       , Size {Size}
@@ -131,8 +132,8 @@ namespace FEXCore::CodeSerialize {
   };
 
   // Map type must use an interator that isn't invalidation on erase/insert
-  using CodeRegionMapType = std::map<uint64_t, std::unique_ptr<CodeRegionEntry>>;
-  using CodeRegionPtrMapType = std::map<uint64_t, CodeRegionEntry*>;
+  using CodeRegionMapType = fextl::map<uint64_t, fextl::unique_ptr<CodeRegionEntry>>;
+  using CodeRegionPtrMapType = fextl::map<uint64_t, CodeRegionEntry*>;
 
   class NamedRegionObjectHandler;
   class CodeObjectSerializeService;
@@ -160,7 +161,7 @@ namespace FEXCore::CodeSerialize {
 
         // These are the reolocations for this serialization job
         // Relatively small number of entries most of the time
-        std::vector<FEXCore::CPU::Relocation> Relocations;
+        fextl::vector<FEXCore::CPU::Relocation> Relocations;
 
         /**
          * @name Objects filled in from the Code Object Serialization service when a job is added
@@ -186,9 +187,9 @@ namespace FEXCore::CodeSerialize {
       /**
        * @name Async job submission functions
        * @{ */
-        void AsyncAddNamedRegionJob(uintptr_t Base, uintptr_t Size, uintptr_t Offset, const std::string &filename);
+        void AsyncAddNamedRegionJob(uintptr_t Base, uintptr_t Size, uintptr_t Offset, const fextl::string &filename);
         void AsyncRemoveNamedRegionJob(uintptr_t Base, uintptr_t Size);
-        void AsyncAddSerializationJob(std::unique_ptr<SerializationJobData> Data);
+        void AsyncAddSerializationJob(fextl::unique_ptr<SerializationJobData> Data);
       /**  @} */
 
       /**
@@ -219,22 +220,22 @@ namespace FEXCore::CodeSerialize {
 
         class WorkItemAddNamedRegion : public NamedRegionWorkItem {
           public:
-            WorkItemAddNamedRegion(const std::string &base, const std::string &filename, bool executable, CodeRegionMapType::iterator entry)
+            WorkItemAddNamedRegion(const fextl::string &base, const fextl::string &filename, bool executable, CodeRegionMapType::iterator entry)
               : NamedRegionWorkItem {NamedRegionJobType::JOB_ADD_NAMED_REGION}
               , BaseFilename {base}
               , Filename {filename}
               , Executable {executable}
               , Entry {entry}
               {}
-            const std::string BaseFilename;
-            const std::string Filename;
+            const fextl::string BaseFilename;
+            const fextl::string Filename;
             bool Executable;
             CodeRegionMapType::iterator Entry;
         };
 
         class WorkItemRemoveNamedRegion : public NamedRegionWorkItem {
           public:
-            WorkItemRemoveNamedRegion(uint64_t base, uint64_t size, std::unique_ptr<CodeRegionEntry> entry)
+            WorkItemRemoveNamedRegion(uint64_t base, uint64_t size, fextl::unique_ptr<CodeRegionEntry> entry)
               : NamedRegionWorkItem {NamedRegionJobType::JOB_REMOVE_NAMED_REGION}
               , Base {base}
               , Size {size}
@@ -242,7 +243,7 @@ namespace FEXCore::CodeSerialize {
 
             uint64_t Base;
             uint64_t Size;
-            std::unique_ptr<CodeRegionEntry> Entry;
+            fextl::unique_ptr<CodeRegionEntry> Entry;
         };
       /**  @} */
 
@@ -253,7 +254,7 @@ namespace FEXCore::CodeSerialize {
 
   class NamedRegionObjectHandler final {
     public:
-      NamedRegionObjectHandler(FEXCore::Context::Context *ctx);
+      NamedRegionObjectHandler(FEXCore::Context::ContextImpl *ctx);
 
       void HandleNamedRegionObjectJobs();
 
@@ -281,9 +282,9 @@ namespace FEXCore::CodeSerialize {
        *
        * This adds the job that will do the loading of file resources and data tracking.
        */
-      void AsyncAddNamedRegionWorkItem(const std::string &base, const std::string &filename, bool executable, CodeRegionMapType::iterator entry) {
+      void AsyncAddNamedRegionWorkItem(const fextl::string &base, const fextl::string &filename, bool executable, CodeRegionMapType::iterator entry) {
         std::unique_lock lk {NamedWorkQueueMutex};
-        WorkQueue.emplace(std::make_unique<AsyncJobHandler::WorkItemAddNamedRegion> (
+        WorkQueue.emplace(fextl::make_unique<AsyncJobHandler::WorkItemAddNamedRegion> (
           base,
           filename,
           executable,
@@ -292,9 +293,9 @@ namespace FEXCore::CodeSerialize {
         ++NamedWorkQueueJobs;
       }
 
-      void AsyncRemoveNamedRegionWorkItem(uint64_t Base, uint64_t Size, std::unique_ptr<CodeRegionEntry> Entry) {
+      void AsyncRemoveNamedRegionWorkItem(uint64_t Base, uint64_t Size, fextl::unique_ptr<CodeRegionEntry> Entry) {
         std::unique_lock lk {NamedWorkQueueMutex};
-        WorkQueue.emplace(std::make_unique<AsyncJobHandler::WorkItemRemoveNamedRegion> (
+        WorkQueue.emplace(fextl::make_unique<AsyncJobHandler::WorkItemRemoveNamedRegion> (
           Base,
           Size,
           std::move(Entry)
@@ -321,13 +322,13 @@ namespace FEXCore::CodeSerialize {
       // The job queue itself
       // Jobs get consumed as a FIFO
       // Jobs always get appended to the end
-      std::queue<std::unique_ptr<AsyncJobHandler::NamedRegionWorkItem>> WorkQueue{};
+      fextl::queue<fextl::unique_ptr<AsyncJobHandler::NamedRegionWorkItem>> WorkQueue{};
 
       /**
        * @name Named Region object handling
        * @{ */
-        void AddNamedRegionObject(CodeRegionMapType::iterator Entry, const std::string &base_filename, const std::string &filename, bool Executable);
-        void RemoveNamedRegionObject(uintptr_t Base, uintptr_t Size, std::unique_ptr<CodeRegionEntry> Entry);
+        void AddNamedRegionObject(CodeRegionMapType::iterator Entry, const fextl::string &base_filename, const fextl::string &filename, bool Executable);
+        void RemoveNamedRegionObject(uintptr_t Base, uintptr_t Size, fextl::unique_ptr<CodeRegionEntry> Entry);
       /**  @} */
   };
 
@@ -338,7 +339,7 @@ namespace FEXCore::CodeSerialize {
    */
   class CodeObjectSerializeService final {
     public:
-      CodeObjectSerializeService(FEXCore::Context::Context *ctx);
+      CodeObjectSerializeService(FEXCore::Context::ContextImpl *ctx);
 
       /**
        * @brief Initialize the internal interface
@@ -365,7 +366,7 @@ namespace FEXCore::CodeSerialize {
          * @param Offset - The offset from the file
          * @param filename - The filename itself
          */
-        void AsyncAddNamedRegionJob(uintptr_t Base, uintptr_t Size, uintptr_t Offset, const std::string &filename) {
+        void AsyncAddNamedRegionJob(uintptr_t Base, uintptr_t Size, uintptr_t Offset, const fextl::string &filename) {
           AsyncHandler.AsyncAddNamedRegionJob(Base, Size, Offset, filename);
         }
 
@@ -385,7 +386,7 @@ namespace FEXCore::CodeSerialize {
          *
          * @param Data - A fully filled out struct containing all the code serialization
          */
-        void AsyncAddSerializationJob(std::unique_ptr<AsyncJobHandler::SerializationJobData> Data) {
+        void AsyncAddSerializationJob(fextl::unique_ptr<AsyncJobHandler::SerializationJobData> Data) {
           AsyncHandler.AsyncAddSerializationJob(std::move(Data));
         }
       /**  @} */
@@ -440,10 +441,10 @@ namespace FEXCore::CodeSerialize {
       void NotifyWork() { WorkAvailable.NotifyOne(); }
 
     private:
-      FEXCore::Context::Context *CTX;
+      FEXCore::Context::ContextImpl *CTX;
 
       Event WorkAvailable{};
-      std::unique_ptr<FEXCore::Threads::Thread> WorkerThread;
+      fextl::unique_ptr<FEXCore::Threads::Thread> WorkerThread;
       std::atomic_bool WorkerThreadShuttingDown {false};
       AsyncJobHandler AsyncHandler;
       NamedRegionObjectHandler NamedRegionHandler;

External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp

@@ -7,12 +7,12 @@ $end_info$
 
 #include "Interface/Context/Context.h"
 #include "Interface/Core/OpcodeDispatcher.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/Context.h>
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/HLE/SyscallHandler.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/IR/IREmitter.h>
@@ -35,6 +35,7 @@ void OpDispatchBuilder::SyscallOp(OpcodeArgs) {
   constexpr size_t SyscallArgs = 7;
   using SyscallArray = std::array<uint64_t, SyscallArgs>;
 
+  size_t NumArguments{};
   const SyscallArray *GPRIndexes {};
   static constexpr SyscallArray GPRIndexes_64 = {
     FEXCore::X86State::REG_RAX,
@@ -54,13 +55,26 @@ void OpDispatchBuilder::SyscallOp(OpcodeArgs) {
     FEXCore::X86State::REG_RDI,
     FEXCore::X86State::REG_RBP,
   };
-  static_assert(GPRIndexes_64.size() == GPRIndexes_32.size());
 
-  static std::array<uint64_t, SyscallArgs> GPRIndexes_Hangover = {
+  static constexpr SyscallArray GPRIndexes_Hangover = {
     FEXCore::X86State::REG_RCX,
   };
 
-  size_t NumArguments{};
+  static constexpr SyscallArray GPRIndexes_Win64 = {
+    FEXCore::X86State::REG_RAX,
+    FEXCore::X86State::REG_R10,
+    FEXCore::X86State::REG_RDX,
+    FEXCore::X86State::REG_R8,
+    FEXCore::X86State::REG_R9,
+    FEXCore::X86State::REG_RSP,
+  };
+
+  static constexpr SyscallArray GPRIndexes_Win32 = {
+    FEXCore::X86State::REG_RAX,
+    FEXCore::X86State::REG_RSP,
+  };
+
+  SyscallFlags DefaultSyscallFlags = FEXCore::IR::SyscallFlags::DEFAULT;
 
   const auto OSABI = CTX->SyscallHandler->GetOSABI();
   if (OSABI == FEXCore::HLE::SyscallOSABI::OS_LINUX64) {
@@ -68,9 +82,19 @@ void OpDispatchBuilder::SyscallOp(OpcodeArgs) {
     GPRIndexes = &GPRIndexes_64;
   }
   else if (OSABI == FEXCore::HLE::SyscallOSABI::OS_LINUX32) {
-    NumArguments = GPRIndexes_64.size();
+    NumArguments = GPRIndexes_32.size();
     GPRIndexes = &GPRIndexes_32;
   }
+  else if (OSABI == FEXCore::HLE::SyscallOSABI::OS_WIN64) {
+    NumArguments = 6;
+    GPRIndexes = &GPRIndexes_Win64;
+    DefaultSyscallFlags = FEXCore::IR::SyscallFlags::NORETURNEDRESULT;
+  }
+  else if (OSABI == FEXCore::HLE::SyscallOSABI::OS_WIN32) {
+    NumArguments = 2;
+    GPRIndexes = &GPRIndexes_Win32;
+    DefaultSyscallFlags = FEXCore::IR::SyscallFlags::NORETURNEDRESULT;
+  }
   else if (OSABI == FEXCore::HLE::SyscallOSABI::OS_HANGOVER) {
     NumArguments = 1;
     GPRIndexes = &GPRIndexes_Hangover;
@@ -109,13 +133,20 @@ void OpDispatchBuilder::SyscallOp(OpcodeArgs) {
     Arguments[4],
     Arguments[5],
     Arguments[6],
-    FEXCore::IR::SyscallFlags::DEFAULT);
+    DefaultSyscallFlags);
 
-  if (OSABI != FEXCore::HLE::SyscallOSABI::OS_HANGOVER) {
+  if (OSABI != FEXCore::HLE::SyscallOSABI::OS_HANGOVER &&
+      (DefaultSyscallFlags & FEXCore::IR::SyscallFlags::NORETURNEDRESULT) != FEXCore::IR::SyscallFlags::NORETURNEDRESULT) {
     // Hangover doesn't want us returning a result here
     // syscall is being abused as a thunk for now.
     StoreGPRRegister(X86State::REG_RAX, SyscallOp);
   }
+
+  if (Op->TableInfo->Flags & X86Tables::InstFlags::FLAGS_BLOCK_END) {
+    // RIP could have been updated after coming back from the Syscall.
+    NewRIP = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, rip));
+    _ExitFunction(NewRIP);
+  }
 }
 
 void OpDispatchBuilder::ThunkOp(OpcodeArgs) {
@@ -277,18 +308,6 @@ void OpDispatchBuilder::IRETOp(OpcodeArgs) {
   BlockSetRIP = true;
 }
 
-void OpDispatchBuilder::SIGRETOp(OpcodeArgs) {
-  uint8_t Literal = Op->Src[0].Data.Literal.Value;
-  const uint8_t GPRSize = CTX->GetGPRSize();
-  // Store the new RIP
-  bool IsRT = CTX->Config.Is64BitMode() || Literal;
-  _SignalReturn(IsRT);
-  auto NewRIP = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, rip));
-  // This ExitFunction won't actually get hit but needs to exist
-  _ExitFunction(NewRIP);
-  BlockSetRIP = true;
-}
-
 void OpDispatchBuilder::CallbackReturnOp(OpcodeArgs) {
   const uint8_t GPRSize = CTX->GetGPRSize();
   // Store the new RIP
@@ -445,7 +464,7 @@ void OpDispatchBuilder::ADCOp(OpcodeArgs) {
   GenerateFlags_ADC(Op, Result, Before, Src, CF);
 }
 
-template<uint32_t SrcIndex>
+template<uint32_t SrcIndex, bool SetFlags>
 void OpDispatchBuilder::SBBOp(OpcodeArgs) {
   // Calculate flags early.
   CalculateDeferredFlags();
@@ -471,10 +490,12 @@ void OpDispatchBuilder::SBBOp(OpcodeArgs) {
     StoreResult(GPRClass, Op, Result, -1);
   }
 
-  if (Size < 4) {
-    Result = _Bfe(Size, Size * 8, 0, Result);
+  if (SetFlags) {
+    if (Size < 4) {
+      Result = _Bfe(Size, Size * 8, 0, Result);
+    }
+    GenerateFlags_SBB(Op, Result, Before, Src, CF);
   }
-  GenerateFlags_SBB(Op, Result, Before, Src, CF);
 }
 
 void OpDispatchBuilder::PUSHOp(OpcodeArgs) {
@@ -876,7 +897,7 @@ OrderedNode *OpDispatchBuilder::SelectCC(uint8_t OP, OrderedNode *TrueValue, Ord
     case 0x7: { // JA - Jump if CF == 0 && ZF == 0
       auto Flag1 = GetRFLAG(FEXCore::X86State::RFLAG_ZF_LOC);
       auto Flag2 = GetRFLAG(FEXCore::X86State::RFLAG_CF_LOC);
-      auto Check = _Or(Flag1, _Lshl(Flag2, _Constant(1)));
+      auto Check = _Or(Flag1, Flag2);
       SrcCond = _Select(FEXCore::IR::COND_EQ,
           Check, ZeroConst, TrueValue, FalseValue);
       break;
@@ -1523,7 +1544,7 @@ void OpDispatchBuilder::SAHFOp(OpcodeArgs) {
   OrderedNode *Src = LoadGPRRegister(X86State::REG_RAX, 1, 8);
 
   // Clear bits that aren't supposed to be set
-  Src = _And(Src, _Constant(~0b101000));
+  Src = _Andn(Src, _Constant(0b101000));
 
   // Set the bit that is always set here
   Src = _Or(Src, _Constant(0b10));
@@ -1758,6 +1779,18 @@ void OpDispatchBuilder::CPUIDOp(OpcodeArgs) {
   StoreGPRRegister(X86State::REG_RCX, _Bfe(32, 0,  Result_Upper));
 }
 
+void OpDispatchBuilder::XGetBVOp(OpcodeArgs) {
+  OrderedNode *Function = LoadGPRRegister(X86State::REG_RCX);
+
+  auto Res = _XGetBV(Function);
+
+  OrderedNode *Result_Lower = _ExtractElementPair(Res, 0);
+  OrderedNode *Result_Upper = _ExtractElementPair(Res, 1);
+
+  StoreGPRRegister(X86State::REG_RAX, Result_Lower);
+  StoreGPRRegister(X86State::REG_RDX, Result_Upper);
+}
+
 template<bool SHL1Bit>
 void OpDispatchBuilder::SHLOp(OpcodeArgs) {
   OrderedNode *Src{};
@@ -3805,73 +3838,21 @@ void OpDispatchBuilder::STOSOp(OpcodeArgs) {
     StoreGPRRegister(X86State::REG_RDI, TailDest);
   }
   else {
-    // Calculate deffered flags.
-    // This block is ending and it needs flag status
-    CalculateDeferredFlags();
+    // FEX doesn't support partial faulting REP instructions.
+    // Converting this to a `MemSet` IR op optimizes this quite significantly in our codegen.
+    // If FEX is to gain support for faulting REP instructions, then this implementation needs to change significantly.
+    OrderedNode *Src = LoadSource(GPRClass, Op, Op->Src[0], Op->Flags, -1);
+    OrderedNode *Dest = LoadGPRRegister(X86State::REG_RDI);
 
-    // Create all our blocks
-    auto LoopHead = CreateNewCodeBlockAfter(GetCurrentBlock());
-    auto LoopTail = CreateNewCodeBlockAfter(LoopHead);
-    auto LoopEnd = CreateNewCodeBlockAfter(LoopTail);
+    // Only ES prefix
+    auto Segment = GetSegment(0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
 
-    // At the time this was written, our RA can't handle accessing nodes across blocks.
-    // So we need to re-load and re-calculate essential values each iteration of the loop.
-
-    // First thing we need to do is finish this block and jump to the start of the loop.
-
-    // RA can now better allocate things, move these ops before the header, to avoid accessing
-    // DF on every iteration
-    auto SizeConst = _Constant(Size);
-    auto NegSizeConst = _Constant(-Size);
-
-    // Calculate direction.
+    OrderedNode *Counter = LoadGPRRegister(X86State::REG_RCX);
     auto DF = GetRFLAG(FEXCore::X86State::RFLAG_DF_LOC);
-    auto PtrDir = _Select(FEXCore::IR::COND_EQ,
-        DF,  _Constant(0),
-        SizeConst, NegSizeConst);
 
-    _Jump(LoopHead);
-
-    SetCurrentCodeBlock(LoopHead);
-    {
-      OrderedNode *Counter = LoadGPRRegister(X86State::REG_RCX);
-
-      // Can we end the block?
-      _CondJump(Counter, LoopEnd, LoopTail, {COND_EQ});
-    }
-
-    SetCurrentCodeBlock(LoopTail);
-    {
-      OrderedNode *Src = LoadSource(GPRClass, Op, Op->Src[0], Op->Flags, -1);
-      OrderedNode *Dest = LoadGPRRegister(X86State::REG_RDI);
-
-      // Only ES prefix
-      Dest = AppendSegmentOffset(Dest, 0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
-
-      // Store to memory where RDI points
-      _StoreMemAutoTSO(GPRClass, Size, Dest, Src, Size);
-
-      OrderedNode *TailCounter = LoadGPRRegister(X86State::REG_RCX);
-      OrderedNode *TailDest = LoadGPRRegister(X86State::REG_RDI);
-
-      // Decrement counter
-      TailCounter = _Sub(TailCounter, _Constant(1));
-
-      // Store the counter so we don't have to deal with PHI here
-      StoreGPRRegister(X86State::REG_RCX, TailCounter);
-
-
-      // Offset the pointer
-      TailDest = _Add(TailDest, PtrDir);
-      StoreGPRRegister(X86State::REG_RDI, TailDest);
-
-      // Jump back to the start, we have more work to do
-      _Jump(LoopHead);
-    }
-
-    // Make sure to start a new block after ending this one
-
-    SetCurrentCodeBlock(LoopEnd);
+    auto Result = _MemSet(CTX->IsAtomicTSOEnabled(), Size, Segment ?: InvalidNode, Dest, Src, Counter, DF);
+    StoreGPRRegister(X86State::REG_RCX, _Constant(0));
+    StoreGPRRegister(X86State::REG_RDI, Result);
   }
 }
 
@@ -3884,75 +3865,35 @@ void OpDispatchBuilder::MOVSOp(OpcodeArgs) {
 
   // RA now can handle these to be here, to avoid DF accesses
   const auto Size = GetSrcSize(Op);
-  auto SizeConst = _Constant(Size);
-  auto NegSizeConst = _Constant(-Size);
 
   // Calculate direction.
   auto DF = GetRFLAG(FEXCore::X86State::RFLAG_DF_LOC);
-  auto PtrDir = _Select(FEXCore::IR::COND_EQ, DF,  _Constant(0), SizeConst, NegSizeConst);
 
   if (Op->Flags & (FEXCore::X86Tables::DecodeFlags::FLAG_REP_PREFIX | FEXCore::X86Tables::DecodeFlags::FLAG_REPNE_PREFIX)) {
-    // Calculate flags early. because end of block
-    CalculateDeferredFlags();
+    auto SrcAddr = LoadGPRRegister(X86State::REG_RSI);
+    auto DstAddr = LoadGPRRegister(X86State::REG_RDI);
+    auto Counter = LoadGPRRegister(X86State::REG_RCX);
 
-    // Create all our blocks
-    auto LoopHead = CreateNewCodeBlockAfter(GetCurrentBlock());
-    auto LoopTail = CreateNewCodeBlockAfter(LoopHead);
-    auto LoopEnd = CreateNewCodeBlockAfter(LoopTail);
+    auto DstSegment = GetSegment(0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
+    auto SrcSegment = GetSegment(Op->Flags, FEXCore::X86Tables::DecodeFlags::FLAG_DS_PREFIX);
 
+    auto Result = _MemCpy(CTX->IsAtomicTSOEnabled(), Size,
+        DstSegment ?: InvalidNode,
+        SrcSegment ?: InvalidNode,
+        DstAddr, SrcAddr, Counter, DF);
 
-    // At the time this was written, our RA can't handle accessing nodes across blocks.
-    // So we need to re-load and re-calculate essential values each iteration of the loop.
+    OrderedNode *Result_Dst = _ExtractElementPair(Result, 0);
+    OrderedNode *Result_Src = _ExtractElementPair(Result, 1);
 
-    // First thing we need to do is finish this block and jump to the start of the loop.
-
-    _Jump(LoopHead);
-
-    SetCurrentCodeBlock(LoopHead);
-    {
-      OrderedNode *Counter = LoadGPRRegister(X86State::REG_RCX);
-      _CondJump(Counter, LoopEnd, LoopTail, {COND_EQ});
-    }
-
-    SetCurrentCodeBlock(LoopTail);
-    {
-      OrderedNode *Src = LoadGPRRegister(X86State::REG_RSI);
-      OrderedNode *Dest = LoadGPRRegister(X86State::REG_RDI);
-      Dest = AppendSegmentOffset(Dest, 0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
-      Src = AppendSegmentOffset(Src, Op->Flags, FEXCore::X86Tables::DecodeFlags::FLAG_DS_PREFIX);
-
-      Src = _LoadMemAutoTSO(GPRClass, Size, Src, Size);
-
-      // Store to memory where RDI points
-      _StoreMemAutoTSO(GPRClass, Size, Dest, Src, Size);
-
-      OrderedNode *TailCounter = LoadGPRRegister(X86State::REG_RCX);
-
-      // Decrement counter
-      TailCounter = _Sub(TailCounter, _Constant(1));
-
-      // Store the counter so we don't have to deal with PHI here
-      StoreGPRRegister(X86State::REG_RCX, TailCounter);
-
-
-      // Offset the pointer
-      OrderedNode *TailSrc = LoadGPRRegister(X86State::REG_RSI);
-      OrderedNode *TailDest = LoadGPRRegister(X86State::REG_RDI);
-
-      TailSrc = _Add(TailSrc, PtrDir);
-      TailDest = _Add(TailDest, PtrDir);
-      StoreGPRRegister(X86State::REG_RSI, TailSrc);
-      StoreGPRRegister(X86State::REG_RDI, TailDest);
-
-      // Jump back to the start, we have more work to do
-      _Jump(LoopHead);
-    }
-
-    // Make sure to start a new block after ending this one
-
-    SetCurrentCodeBlock(LoopEnd);
+    StoreGPRRegister(X86State::REG_RCX, _Constant(0));
+    StoreGPRRegister(X86State::REG_RDI, Result_Dst);
+    StoreGPRRegister(X86State::REG_RSI, Result_Src);
   }
   else {
+    auto SizeConst = _Constant(Size);
+    auto NegSizeConst = _Constant(-Size);
+    auto PtrDir = _Select(FEXCore::IR::COND_EQ, DF,  _Constant(0), SizeConst, NegSizeConst);
+
     OrderedNode *RSI = LoadGPRRegister(X86State::REG_RSI);
     OrderedNode *RDI = LoadGPRRegister(X86State::REG_RDI);
     RDI= AppendSegmentOffset(RDI, 0, FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX, true);
@@ -4748,7 +4689,7 @@ void OpDispatchBuilder::CMPXCHGPairOp(OpcodeArgs) {
   SetCurrentCodeBlock(NextJumpTarget);
 }
 
-void OpDispatchBuilder::CreateJumpBlocks(std::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks) {
+void OpDispatchBuilder::CreateJumpBlocks(fextl::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks) {
   OrderedNode *PrevCodeBlock{};
   for (auto &Target : *Blocks) {
     auto CodeNode = CreateCodeNode();
@@ -4763,7 +4704,7 @@ void OpDispatchBuilder::CreateJumpBlocks(std::vector<FEXCore::Frontend::Decoder:
   }
 }
 
-void OpDispatchBuilder::BeginFunction(uint64_t RIP, std::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks) {
+void OpDispatchBuilder::BeginFunction(uint64_t RIP, fextl::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks) {
   Entry = RIP;
   auto IRHeader = _IRHeader(InvalidNode, 0);
   Current_Header = IRHeader.first;
@@ -4844,20 +4785,19 @@ uint32_t OpDispatchBuilder::GetDstBitSize(X86Tables::DecodedOp Op) const {
   return GetDstSize(Op) * 8;
 }
 
-OrderedNode *OpDispatchBuilder::AppendSegmentOffset(OrderedNode *Value, uint32_t Flags, uint32_t DefaultPrefix, bool Override) {
+OrderedNode *OpDispatchBuilder::GetSegment(uint32_t Flags, uint32_t DefaultPrefix, bool Override) {
   const uint8_t GPRSize = CTX->GetGPRSize();
 
   if (CTX->Config.Is64BitMode) {
     if (Flags & FEXCore::X86Tables::DecodeFlags::FLAG_FS_PREFIX) {
-      Value = _Add(Value, _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, fs_cached)));
+      return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, fs_cached));
     }
     else if (Flags & FEXCore::X86Tables::DecodeFlags::FLAG_GS_PREFIX) {
-      Value = _Add(Value, _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, gs_cached)));
+      return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, gs_cached));
     }
     // If there was any other segment in 64bit then it is ignored
   }
   else {
-    OrderedNode *Segment{};
     uint32_t Prefix = Flags & FEXCore::X86Tables::DecodeFlags::FLAG_SEGMENTS;
     if (!Prefix || Override) {
       // If there was no prefix then use the default one if available
@@ -4867,29 +4807,28 @@ OrderedNode *OpDispatchBuilder::AppendSegmentOffset(OrderedNode *Value, uint32_t
     // With the segment register optimization we store the GDT bases directly in the segment register to remove indexed loads
     switch (Prefix) {
       case FEXCore::X86Tables::DecodeFlags::FLAG_ES_PREFIX:
-        Segment = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, es_cached));
-        break;
+        return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, es_cached));
       case FEXCore::X86Tables::DecodeFlags::FLAG_CS_PREFIX:
-        Segment = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, cs_cached));
-        break;
+        return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, cs_cached));
       case FEXCore::X86Tables::DecodeFlags::FLAG_SS_PREFIX:
-        Segment = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, ss_cached));
-        break;
+        return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, ss_cached));
       case FEXCore::X86Tables::DecodeFlags::FLAG_DS_PREFIX:
-        Segment = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, ds_cached));
-        break;
+        return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, ds_cached));
       case FEXCore::X86Tables::DecodeFlags::FLAG_FS_PREFIX:
-        Segment = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, fs_cached));
-        break;
+        return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, fs_cached));
       case FEXCore::X86Tables::DecodeFlags::FLAG_GS_PREFIX:
-        Segment = _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, gs_cached));
-        break;
-      default: break; // Do nothing
+        return _LoadContext(GPRSize, GPRClass, offsetof(FEXCore::Core::CPUState, gs_cached));
+      default:
+        break; // Do nothing
     }
+  }
+  return nullptr;
+}
 
-    if (Segment) {
-      Value = _Add(Value, Segment);
-    }
+OrderedNode *OpDispatchBuilder::AppendSegmentOffset(OrderedNode *Value, uint32_t Flags, uint32_t DefaultPrefix, bool Override) {
+  auto Segment = GetSegment(Flags, DefaultPrefix, Override);
+  if (Segment) {
+    Value = _Add(Value, Segment);
   }
 
   return Value;
@@ -4957,21 +4896,9 @@ OrderedNode *OpDispatchBuilder::LoadSource_WithOpSize(FEXCore::IR::RegisterClass
     else if (gpr >= FEXCore::X86State::REG_XMM_0) {
       const auto gprIndex = gpr - X86State::REG_XMM_0;
 
-      const auto regSize = CTX->HostFeatures.SupportsAVX ?
-        Core::CPUState::XMM_AVX_REG_SIZE :
-        Core::CPUState::XMM_SSE_REG_SIZE;
-
       // Load the full register size if it is a XMM register source.
       Src = LoadXMMRegister(gprIndex);
 
-      // If we are wanting a high-index then we need to extract an element from the upper half of the reg.
-      // We can only extract an element size here.
-      // TODO: Have the instruction doing this load do the extract instead of here.
-      // We don't have enough information here to know if we can avoid this dup.
-      if (highIndex && OpSize < Core::CPUState::XMM_SSE_REG_SIZE) {
-        Src = _VDupElement(regSize, OpSize, Src, 1);
-      }
-
       // Now extract the subregister if it was a partial load /smaller/ than SSE size
       // TODO: Instead of doing the VMov implicitly on load, hunt down all use cases that require partial loads and do it after load.
       // We don't have information here to know if the operation needs zero upper bits or can contain data.
@@ -5173,28 +5100,23 @@ void OpDispatchBuilder::StoreResult_WithOpSize(FEXCore::IR::RegisterClassType Cl
     }
     else if (gpr >= FEXCore::X86State::REG_XMM_0) {
       const auto gprIndex = gpr - X86State::REG_XMM_0;
-      const auto highIndex = Operand.Data.GPR.HighBits ? 1 : 0;
-
       const auto VectorSize = CTX->HostFeatures.SupportsAVX ? 32 : 16;
 
       auto Result = Src;
-      if (highIndex || OpSize != VectorSize) {
-        // Partial writes can come from GPR or FPR.
+      if (OpSize != VectorSize) {
+        // Partial writes can come from FPRs.
         // TODO: Fix the instructions doing partial writes rather than dealing with it here.
         auto SrcVector = LoadXMMRegister(gprIndex);
 
-        if (Class == IR::GPRClass) {
-          Result = _VInsGPR(VectorSize, OpSize, highIndex, SrcVector, Src);
-        }
-        else {
-          // OpSize of 16 is special in that it is expected to zero the upper bits of the 256-bit operation.
-          // TODO: Longer term we should enforce the difference between zero and insert.
-          if (VectorSize == Core::CPUState::XMM_AVX_REG_SIZE && OpSize == Core::CPUState::XMM_SSE_REG_SIZE) {
-            Result = _VMov(OpSize, Src);
-          }
-          else {
-            Result = _VInsElement(VectorSize, OpSize, highIndex, 0, SrcVector, Src);
-          }
+        LOGMAN_THROW_A_FMT(Class != IR::GPRClass, "Partial writes from GPR not allowed. Instruction: {}",
+                           Op->TableInfo->Name);
+
+        // OpSize of 16 is special in that it is expected to zero the upper bits of the 256-bit operation.
+        // TODO: Longer term we should enforce the difference between zero and insert.
+        if (VectorSize == Core::CPUState::XMM_AVX_REG_SIZE && OpSize == Core::CPUState::XMM_SSE_REG_SIZE) {
+          Result = _VMov(OpSize, Src);
+        } else {
+          Result = _VInsElement(VectorSize, OpSize, 0, 0, SrcVector, Src);
         }
       }
 
@@ -5330,7 +5252,7 @@ void OpDispatchBuilder::StoreResult(FEXCore::IR::RegisterClassType Class, FEXCor
   StoreResult(Class, Op, Op->Dest, Src, Align, AccessType);
 }
 
-OpDispatchBuilder::OpDispatchBuilder(FEXCore::Context::Context *ctx)
+OpDispatchBuilder::OpDispatchBuilder(FEXCore::Context::ContextImpl *ctx)
   : IREmitter {ctx->OpDispatcherAllocator}
   , CTX {ctx} {
   ResetWorkingList();
@@ -5365,58 +5287,7 @@ void OpDispatchBuilder::MOVGPRNTOp(OpcodeArgs) {
   StoreResult(GPRClass, Op, Src, 1, MemoryAccessType::ACCESS_STREAM);
 }
 
-void OpDispatchBuilder::ALUOp(OpcodeArgs) {
-  bool RequiresMask = false;
-  FEXCore::IR::IROps IROp;
-  switch (Op->OP) {
-  case 0x0:
-  case 0x1:
-  case 0x2:
-  case 0x3:
-  case 0x4:
-  case 0x5:
-    IROp = FEXCore::IR::IROps::OP_ADD;
-    RequiresMask = true;
-  break;
-  case 0x8:
-  case 0x9:
-  case 0xA:
-  case 0xB:
-  case 0xC:
-  case 0xD:
-    IROp = FEXCore::IR::IROps::OP_OR;
-  break;
-  case 0x20:
-  case 0x21:
-  case 0x22:
-  case 0x23:
-  case 0x24:
-  case 0x25:
-    IROp = FEXCore::IR::IROps::OP_AND;
-  break;
-  case 0x28:
-  case 0x29:
-  case 0x2A:
-  case 0x2B:
-  case 0x2C:
-  case 0x2D:
-    IROp = FEXCore::IR::IROps::OP_SUB;
-    RequiresMask = true;
-  break;
-  case 0x30:
-  case 0x31:
-  case 0x32:
-  case 0x33:
-  case 0x34:
-  case 0x35:
-    IROp = FEXCore::IR::IROps::OP_XOR;
-  break;
-  default:
-    IROp = FEXCore::IR::IROps::OP_LAST;
-    LOGMAN_MSG_A_FMT("Unknown ALU Op: 0x{:x}", Op->OP);
-  break;
-  }
-
+void OpDispatchBuilder::ALUOpImpl(OpcodeArgs, FEXCore::IR::IROps ALUIROp, FEXCore::IR::IROps AtomicFetchOp, bool RequiresMask) {
   auto Size = GetDstSize(Op);
 
   // X86 basic ALU ops just do the operation between the destination and a single source
@@ -5429,43 +5300,24 @@ void OpDispatchBuilder::ALUOp(OpcodeArgs) {
     HandledLock = true;
     OrderedNode *DestMem = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, -1, false);
     DestMem = AppendSegmentOffset(DestMem, Op->Flags);
-    switch (IROp) {
-      case FEXCore::IR::IROps::OP_ADD: {
-        Dest = _AtomicFetchAdd(Size, Src, DestMem);
-        Result = _Add(Dest, Src);
-        break;
-      }
-      case FEXCore::IR::IROps::OP_SUB: {
-        Dest = _AtomicFetchSub(Size, Src, DestMem);
-        Result = _Sub(Dest, Src);
-        break;
-      }
-      case FEXCore::IR::IROps::OP_OR: {
-        Dest = _AtomicFetchOr(Size, Src, DestMem);
-        Result = _Or(Dest, Src);
-        break;
-      }
-      case FEXCore::IR::IROps::OP_AND: {
-        Dest = _AtomicFetchAnd(Size, Src, DestMem);
-        Result = _And(Dest, Src);
-        break;
-      }
-      case FEXCore::IR::IROps::OP_XOR: {
-        Dest = _AtomicFetchXor(Size, Src, DestMem);
-        Result = _Xor(Dest, Src);
-        break;
-      }
-      default:
-        LOGMAN_MSG_A_FMT("Unknown Atomic IR Op: {}", ToUnderlying(IROp));
-        break;
-    }
+
+    auto FetchOp = _AtomicFetchAdd(Size, Src, DestMem);
+    // Overwrite our atomic op type
+    FetchOp.first->Header.Op = AtomicFetchOp;
+    Dest = FetchOp;
+
+    auto ALUOp = _Add(Dest, Src);
+    // Overwrite our IR's op type
+    ALUOp.first->Header.Op = ALUIROp;
+
+    Result = ALUOp;
   }
   else {
     Dest = LoadSource(GPRClass, Op, Op->Dest, Op->Flags, -1);
 
     auto ALUOp = _Add(Dest, Src);
     // Overwrite our IR's op type
-    ALUOp.first->Header.Op = IROp;
+    ALUOp.first->Header.Op = ALUIROp;
 
     Result = ALUOp;
     StoreResult(GPRClass, Op, Result, -1);
@@ -5477,7 +5329,7 @@ void OpDispatchBuilder::ALUOp(OpcodeArgs) {
 
   // Flags set
   {
-    switch (IROp) {
+    switch (ALUIROp) {
     case FEXCore::IR::IROps::OP_ADD:
       GenerateFlags_ADD(Op, Result, Dest, Src);
     break;
@@ -5495,6 +5347,11 @@ void OpDispatchBuilder::ALUOp(OpcodeArgs) {
   }
 }
 
+template<FEXCore::IR::IROps ALUIROp, FEXCore::IR::IROps AtomicFetchOp, bool RequiresMask>
+void OpDispatchBuilder::ALUOp(OpcodeArgs) {
+  ALUOpImpl(Op, ALUIROp, AtomicFetchOp, RequiresMask);
+}
+
 void OpDispatchBuilder::INTOp(OpcodeArgs) {
   IR::BreakDefinition Reason;
   bool SetRIPToNext = false;
@@ -5503,14 +5360,19 @@ void OpDispatchBuilder::INTOp(OpcodeArgs) {
   case 0xCD: { // INT imm8
     uint8_t Literal = Op->Src[0].Data.Literal.Value;
 
-    if (Literal == 0x80) {
+#ifndef _WIN32
+    constexpr uint8_t SYSCALL_LITERAL = 0x80;
+#else
+    constexpr uint8_t SYSCALL_LITERAL = 0x2E;
+#endif
+    if (Literal == SYSCALL_LITERAL) {
       // Syscall on linux
       SyscallOp(Op);
       return;
     }
 
     Reason.ErrorRegister = Literal << 3 | (0b010);
-    Reason.Signal = SIGSEGV;
+    Reason.Signal = Core::FAULT_SIGSEGV;
     // GP is raised when task-gate isn't setup to be valid
     Reason.TrapNumber = X86State::X86_TRAPNO_GP;
     Reason.si_code = 0x80;
@@ -5518,33 +5380,33 @@ void OpDispatchBuilder::INTOp(OpcodeArgs) {
   }
   case 0xCE: // INTO
     Reason.ErrorRegister = 0;
-    Reason.Signal = SIGSEGV;
+    Reason.Signal = Core::FAULT_SIGSEGV;
     Reason.TrapNumber = X86State::X86_TRAPNO_OF;
     Reason.si_code = 0x80;
    break;
   case 0xF1: // INT1
     Reason.ErrorRegister = 0;
-    Reason.Signal = SIGTRAP;
+    Reason.Signal = Core::FAULT_SIGTRAP;
     Reason.TrapNumber = X86State::X86_TRAPNO_DB;
     Reason.si_code = 1;
     SetRIPToNext = true;
   break;
   case 0xF4: { // HLT
     Reason.ErrorRegister = 0;
-    Reason.Signal = SIGSEGV;
+    Reason.Signal = Core::FAULT_SIGSEGV;
     Reason.TrapNumber = X86State::X86_TRAPNO_GP;
     Reason.si_code = 0x80;
   break;
   }
   case 0x0B: // UD2
     Reason.ErrorRegister = 0;
-    Reason.Signal = SIGILL;
+    Reason.Signal = Core::FAULT_SIGILL;
     Reason.TrapNumber = X86State::X86_TRAPNO_UD;
     Reason.si_code = 2;
   break;
   case 0xCC: // INT3
     Reason.ErrorRegister = 0;
-    Reason.Signal = SIGTRAP;
+    Reason.Signal = Core::FAULT_SIGTRAP;
     Reason.TrapNumber = X86State::X86_TRAPNO_BP;
     Reason.si_code = 0x80;
     SetRIPToNext = true;
@@ -5826,8 +5688,12 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
   static constexpr std::tuple<uint16_t, uint8_t, FEXCore::X86Tables::OpDispatchPtr> AVXTable[] = {
     {OPD(1, 0b00, 0x10), 1, &OpDispatchBuilder::VMOVUPS_VMOVUPD_Op},
     {OPD(1, 0b01, 0x10), 1, &OpDispatchBuilder::VMOVUPS_VMOVUPD_Op},
+    {OPD(1, 0b10, 0x10), 1, &OpDispatchBuilder::VMOVSSOp},
+    {OPD(1, 0b11, 0x10), 1, &OpDispatchBuilder::VMOVSDOp},
     {OPD(1, 0b00, 0x11), 1, &OpDispatchBuilder::VMOVUPS_VMOVUPD_Op},
     {OPD(1, 0b01, 0x11), 1, &OpDispatchBuilder::VMOVUPS_VMOVUPD_Op},
+    {OPD(1, 0b10, 0x11), 1, &OpDispatchBuilder::VMOVSSOp},
+    {OPD(1, 0b11, 0x11), 1, &OpDispatchBuilder::VMOVSDOp},
 
     {OPD(1, 0b00, 0x12), 1, &OpDispatchBuilder::VMOVLPOp},
     {OPD(1, 0b01, 0x12), 1, &OpDispatchBuilder::VMOVLPOp},
@@ -5853,6 +5719,9 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b00, 0x29), 1, &OpDispatchBuilder::VMOVAPS_VMOVAPD_Op},
     {OPD(1, 0b01, 0x29), 1, &OpDispatchBuilder::VMOVAPS_VMOVAPD_Op},
 
+    {OPD(1, 0b10, 0x2A), 1, &OpDispatchBuilder::AVXCVTGPR_To_FPR<4>},
+    {OPD(1, 0b11, 0x2A), 1, &OpDispatchBuilder::AVXCVTGPR_To_FPR<8>},
+
     {OPD(1, 0b00, 0x2B), 1, &OpDispatchBuilder::VMOVVectorNTOp},
     {OPD(1, 0b01, 0x2B), 1, &OpDispatchBuilder::VMOVVectorNTOp},
 
@@ -5903,6 +5772,11 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b10, 0x59), 1, &OpDispatchBuilder::AVXVectorScalarALUOp<IR::OP_VFMUL, 4>},
     {OPD(1, 0b11, 0x59), 1, &OpDispatchBuilder::AVXVectorScalarALUOp<IR::OP_VFMUL, 8>},
 
+    {OPD(1, 0b00, 0x5A), 1, &OpDispatchBuilder::Vector_CVT_Float_To_Float<8, 4, true>},
+    {OPD(1, 0b01, 0x5A), 1, &OpDispatchBuilder::Vector_CVT_Float_To_Float<4, 8, true>},
+    {OPD(1, 0b10, 0x5A), 1, &OpDispatchBuilder::AVXScalar_CVT_Float_To_Float<8, 4>},
+    {OPD(1, 0b11, 0x5A), 1, &OpDispatchBuilder::AVXScalar_CVT_Float_To_Float<4, 8>},
+
     {OPD(1, 0b00, 0x5B), 1, &OpDispatchBuilder::AVXVector_CVT_Int_To_Float<4, false>},
     {OPD(1, 0b01, 0x5B), 1, &OpDispatchBuilder::AVXVector_CVT_Float_To_Int<4, false, true>},
     {OPD(1, 0b10, 0x5B), 1, &OpDispatchBuilder::AVXVector_CVT_Float_To_Int<4, false, false>},
@@ -5946,6 +5820,10 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b01, 0x6F), 1, &OpDispatchBuilder::VMOVAPS_VMOVAPD_Op},
     {OPD(1, 0b10, 0x6F), 1, &OpDispatchBuilder::VMOVUPS_VMOVUPD_Op},
 
+    {OPD(1, 0b01, 0x70), 1, &OpDispatchBuilder::VPSHUFWOp<4, true>},
+    {OPD(1, 0b10, 0x70), 1, &OpDispatchBuilder::VPSHUFWOp<2, false>},
+    {OPD(1, 0b11, 0x70), 1, &OpDispatchBuilder::VPSHUFWOp<2, true>},
+
     {OPD(1, 0b01, 0x74), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VCMPEQ, 1>},
     {OPD(1, 0b01, 0x75), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VCMPEQ, 2>},
     {OPD(1, 0b01, 0x76), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VCMPEQ, 4>},
@@ -5954,6 +5832,8 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
 
     {OPD(1, 0b01, 0x7C), 1, &OpDispatchBuilder::VHADDPOp<IR::OP_VFADDP, 8>},
     {OPD(1, 0b11, 0x7C), 1, &OpDispatchBuilder::VHADDPOp<IR::OP_VFADDP, 4>},
+    {OPD(1, 0b01, 0x7D), 1, &OpDispatchBuilder::VHSUBPOp<8>},
+    {OPD(1, 0b11, 0x7D), 1, &OpDispatchBuilder::VHSUBPOp<4>},
 
     {OPD(1, 0b01, 0x7E), 1, &OpDispatchBuilder::MOVBetweenGPR_FPR},
     {OPD(1, 0b10, 0x7E), 1, &OpDispatchBuilder::MOVQOp},
@@ -5966,8 +5846,12 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b10, 0xC2), 1, &OpDispatchBuilder::AVXVFCMPOp<4, true>},
     {OPD(1, 0b11, 0xC2), 1, &OpDispatchBuilder::AVXVFCMPOp<8, true>},
 
+    {OPD(1, 0b01, 0xC4), 1, &OpDispatchBuilder::VPINSRWOp},
     {OPD(1, 0b01, 0xC5), 1, &OpDispatchBuilder::PExtrOp<2>},
 
+    {OPD(1, 0b00, 0xC6), 1, &OpDispatchBuilder::VSHUFOp<4>},
+    {OPD(1, 0b01, 0xC6), 1, &OpDispatchBuilder::VSHUFOp<8>},
+
     {OPD(1, 0b01, 0xD0), 1, &OpDispatchBuilder::VADDSUBPOp<8>},
     {OPD(1, 0b11, 0xD0), 1, &OpDispatchBuilder::VADDSUBPOp<4>},
 
@@ -5977,7 +5861,7 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b01, 0xD4), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VADD, 8>},
     {OPD(1, 0b01, 0xD5), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VSMUL, 2>},
     {OPD(1, 0b01, 0xD6), 1, &OpDispatchBuilder::MOVQOp},
-    {OPD(1, 0b01, 0xD7), 1, &OpDispatchBuilder::UnimplementedOp},
+    {OPD(1, 0b01, 0xD7), 1, &OpDispatchBuilder::MOVMSKOpOne},
 
     {OPD(1, 0b01, 0xD8), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VUQSUB, 1>},
     {OPD(1, 0b01, 0xD9), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VUQSUB, 2>},
@@ -6015,6 +5899,8 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b01, 0xF2), 1, &OpDispatchBuilder::VPSLLOp<4>},
     {OPD(1, 0b01, 0xF3), 1, &OpDispatchBuilder::VPSLLOp<8>},
     {OPD(1, 0b01, 0xF4), 1, &OpDispatchBuilder::VPMULLOp<4, false>},
+    {OPD(1, 0b01, 0xF5), 1, &OpDispatchBuilder::VPMADDWDOp},
+    {OPD(1, 0b01, 0xF6), 1, &OpDispatchBuilder::VPSADBWOp},
     {OPD(1, 0b01, 0xF7), 1, &OpDispatchBuilder::MASKMOVOp},
 
     {OPD(1, 0b01, 0xF8), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VSUB, 1>},
@@ -6025,17 +5911,27 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b01, 0xFD), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VADD, 2>},
     {OPD(1, 0b01, 0xFE), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VADD, 4>},
 
+    {OPD(2, 0b01, 0x00), 1, &OpDispatchBuilder::VPSHUFBOp},
     {OPD(2, 0b01, 0x01), 1, &OpDispatchBuilder::VHADDPOp<IR::OP_VADDP, 2>},
     {OPD(2, 0b01, 0x02), 1, &OpDispatchBuilder::VHADDPOp<IR::OP_VADDP, 4>},
+    {OPD(2, 0b01, 0x03), 1, &OpDispatchBuilder::VPHADDSWOp},
+    {OPD(2, 0b01, 0x04), 1, &OpDispatchBuilder::VPMADDUBSWOp},
 
     {OPD(2, 0b01, 0x05), 1, &OpDispatchBuilder::VPHSUBOp<2>},
     {OPD(2, 0b01, 0x06), 1, &OpDispatchBuilder::VPHSUBOp<4>},
+    {OPD(2, 0b01, 0x07), 1, &OpDispatchBuilder::VPHSUBSWOp},
 
     {OPD(2, 0b01, 0x08), 1, &OpDispatchBuilder::VPSIGN<1>},
     {OPD(2, 0b01, 0x09), 1, &OpDispatchBuilder::VPSIGN<2>},
     {OPD(2, 0b01, 0x0A), 1, &OpDispatchBuilder::VPSIGN<4>},
     {OPD(2, 0b01, 0x0B), 1, &OpDispatchBuilder::VPMULHRSWOp},
+    {OPD(2, 0b01, 0x0C), 1, &OpDispatchBuilder::VPERMILRegOp<4>},
+    {OPD(2, 0b01, 0x0D), 1, &OpDispatchBuilder::VPERMILRegOp<8>},
+    {OPD(2, 0b01, 0x0E), 1, &OpDispatchBuilder::VTESTPOp<4>},
+    {OPD(2, 0b01, 0x0F), 1, &OpDispatchBuilder::VTESTPOp<8>},
 
+    {OPD(2, 0b01, 0x16), 1, &OpDispatchBuilder::VPERMDOp},
+    {OPD(2, 0b01, 0x17), 1, &OpDispatchBuilder::PTestOp},
     {OPD(2, 0b01, 0x18), 1, &OpDispatchBuilder::VBROADCASTOp<4>},
     {OPD(2, 0b01, 0x19), 1, &OpDispatchBuilder::VBROADCASTOp<8>},
     {OPD(2, 0b01, 0x1A), 1, &OpDispatchBuilder::VBROADCASTOp<16>},
@@ -6054,6 +5950,10 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(2, 0b01, 0x29), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VCMPEQ, 8>},
     {OPD(2, 0b01, 0x2A), 1, &OpDispatchBuilder::VMOVVectorNTOp},
     {OPD(2, 0b01, 0x2B), 1, &OpDispatchBuilder::VPACKUSOp<4>},
+    {OPD(2, 0b01, 0x2C), 1, &OpDispatchBuilder::VMASKMOVOp<4, false>},
+    {OPD(2, 0b01, 0x2D), 1, &OpDispatchBuilder::VMASKMOVOp<8, false>},
+    {OPD(2, 0b01, 0x2E), 1, &OpDispatchBuilder::VMASKMOVOp<4, true>},
+    {OPD(2, 0b01, 0x2F), 1, &OpDispatchBuilder::VMASKMOVOp<8, true>},
 
     {OPD(2, 0b01, 0x30), 1, &OpDispatchBuilder::AVXExtendVectorElements<1, 2, false>},
     {OPD(2, 0b01, 0x31), 1, &OpDispatchBuilder::AVXExtendVectorElements<1, 4, false>},
@@ -6061,6 +5961,7 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(2, 0b01, 0x33), 1, &OpDispatchBuilder::AVXExtendVectorElements<2, 4, false>},
     {OPD(2, 0b01, 0x34), 1, &OpDispatchBuilder::AVXExtendVectorElements<2, 8, false>},
     {OPD(2, 0b01, 0x35), 1, &OpDispatchBuilder::AVXExtendVectorElements<4, 8, false>},
+    {OPD(2, 0b01, 0x36), 1, &OpDispatchBuilder::VPERMDOp},
 
     {OPD(2, 0b01, 0x37), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VCMPGT, 8>},
     {OPD(2, 0b01, 0x38), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VSMIN, 1>},
@@ -6074,7 +5975,9 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
 
     {OPD(2, 0b01, 0x40), 1, &OpDispatchBuilder::AVXVectorALUOp<IR::OP_VSMUL, 4>},
     {OPD(2, 0b01, 0x41), 1, &OpDispatchBuilder::VPHMINPOSUWOp},
+    {OPD(2, 0b01, 0x45), 1, &OpDispatchBuilder::VPSRLVOp},
     {OPD(2, 0b01, 0x46), 1, &OpDispatchBuilder::VPSRAVDOp},
+    {OPD(2, 0b01, 0x47), 1, &OpDispatchBuilder::VPSLLVOp},
 
     {OPD(2, 0b01, 0x58), 1, &OpDispatchBuilder::VBROADCASTOp<4>},
     {OPD(2, 0b01, 0x59), 1, &OpDispatchBuilder::VBROADCASTOp<8>},
@@ -6083,6 +5986,9 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(2, 0b01, 0x78), 1, &OpDispatchBuilder::VBROADCASTOp<1>},
     {OPD(2, 0b01, 0x79), 1, &OpDispatchBuilder::VBROADCASTOp<2>},
 
+    {OPD(2, 0b01, 0x8C), 1, &OpDispatchBuilder::VPMASKMOVOp<false>},
+    {OPD(2, 0b01, 0x8E), 1, &OpDispatchBuilder::VPMASKMOVOp<true>},
+
     {OPD(2, 0b01, 0xDB), 1, &OpDispatchBuilder::VAESIMCOp},
     {OPD(2, 0b01, 0xDC), 1, &OpDispatchBuilder::VAESEncOp},
     {OPD(2, 0b01, 0xDD), 1, &OpDispatchBuilder::VAESEncLastOp},
@@ -6100,6 +6006,9 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(3, 0b01, 0x0A), 1, &OpDispatchBuilder::AVXVectorRound<4, true>},
     {OPD(3, 0b01, 0x0B), 1, &OpDispatchBuilder::AVXVectorRound<8, true>},
     {OPD(3, 0b01, 0x0C), 1, &OpDispatchBuilder::VPBLENDDOp},
+    {OPD(3, 0b01, 0x0D), 1, &OpDispatchBuilder::VBLENDPDOp},
+    {OPD(3, 0b01, 0x0E), 1, &OpDispatchBuilder::VPBLENDWOp},
+    {OPD(3, 0b01, 0x0F), 1, &OpDispatchBuilder::VPALIGNROp},
 
     {OPD(3, 0b01, 0x14), 1, &OpDispatchBuilder::PExtrOp<1>},
     {OPD(3, 0b01, 0x15), 1, &OpDispatchBuilder::PExtrOp<2>},
@@ -6107,16 +6016,29 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(3, 0b01, 0x17), 1, &OpDispatchBuilder::PExtrOp<4>},
 
     {OPD(3, 0b01, 0x18), 1, &OpDispatchBuilder::VINSERTOp},
-
+    {OPD(3, 0b01, 0x19), 1, &OpDispatchBuilder::VEXTRACT128Op},
+    {OPD(3, 0b01, 0x20), 1, &OpDispatchBuilder::VPINSRBOp},
     {OPD(3, 0b01, 0x21), 1, &OpDispatchBuilder::VINSERTPSOp},
+    {OPD(3, 0b01, 0x22), 1, &OpDispatchBuilder::VPINSRDQOp},
 
     {OPD(3, 0b01, 0x38), 1, &OpDispatchBuilder::VINSERTOp},
+    {OPD(3, 0b01, 0x39), 1, &OpDispatchBuilder::VEXTRACT128Op},
 
     {OPD(3, 0b01, 0x40), 1, &OpDispatchBuilder::VDPPOp<4>},
     {OPD(3, 0b01, 0x41), 1, &OpDispatchBuilder::VDPPOp<8>},
+    {OPD(3, 0b01, 0x42), 1, &OpDispatchBuilder::VMPSADBWOp},
 
     {OPD(3, 0b01, 0x46), 1, &OpDispatchBuilder::VPERM2Op},
 
+    {OPD(3, 0b01, 0x4A), 1, &OpDispatchBuilder::AVXVectorVariableBlend<4>},
+    {OPD(3, 0b01, 0x4B), 1, &OpDispatchBuilder::AVXVectorVariableBlend<8>},
+    {OPD(3, 0b01, 0x4C), 1, &OpDispatchBuilder::AVXVectorVariableBlend<1>},
+
+    {OPD(3, 0b01, 0x60), 1, &OpDispatchBuilder::VPCMPESTRMOp},
+    {OPD(3, 0b01, 0x61), 1, &OpDispatchBuilder::VPCMPESTRIOp},
+    {OPD(3, 0b01, 0x62), 1, &OpDispatchBuilder::VPCMPISTRMOp},
+    {OPD(3, 0b01, 0x63), 1, &OpDispatchBuilder::VPCMPISTRIOp},
+
     {OPD(3, 0b01, 0xDF), 1, &OpDispatchBuilder::VAESKeyGenAssistOp},
   };
 #undef OPD
@@ -6186,19 +6108,19 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
 void InstallOpcodeHandlers(Context::OperatingMode Mode) {
   constexpr std::tuple<uint8_t, uint8_t, X86Tables::OpDispatchPtr> BaseOpTable[] = {
     // Instructions
-    {0x00, 6, &OpDispatchBuilder::ALUOp},
+    {0x00, 6, &OpDispatchBuilder::ALUOp<FEXCore::IR::IROps::OP_ADD, FEXCore::IR::IROps::OP_ATOMICFETCHADD, true>},
 
-    {0x08, 6, &OpDispatchBuilder::ALUOp},
+    {0x08, 6, &OpDispatchBuilder::ALUOp<FEXCore::IR::IROps::OP_OR, FEXCore::IR::IROps::OP_ATOMICFETCHOR, false>},
 
     {0x10, 6, &OpDispatchBuilder::ADCOp<0>},
 
-    {0x18, 6, &OpDispatchBuilder::SBBOp<0>},
+    {0x18, 6, &OpDispatchBuilder::SBBOp<0, true>},
 
-    {0x20, 6, &OpDispatchBuilder::ALUOp},
+    {0x20, 6, &OpDispatchBuilder::ALUOp<FEXCore::IR::IROps::OP_AND, FEXCore::IR::IROps::OP_ATOMICFETCHAND, false>},
 
-    {0x28, 6, &OpDispatchBuilder::ALUOp},
+    {0x28, 6, &OpDispatchBuilder::ALUOp<FEXCore::IR::IROps::OP_SUB, FEXCore::IR::IROps::OP_ATOMICFETCHSUB, true>},
 
-    {0x30, 6, &OpDispatchBuilder::ALUOp},
+    {0x30, 6, &OpDispatchBuilder::ALUOp<FEXCore::IR::IROps::OP_XOR, FEXCore::IR::IROps::OP_ATOMICFETCHXOR, false>},
 
     {0x38, 6, &OpDispatchBuilder::CMPOp<0>},
     {0x50, 8, &OpDispatchBuilder::PUSHREGOp},
@@ -6274,6 +6196,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {0xCE, 1, &OpDispatchBuilder::INTOp},
     {0xD4, 1, &OpDispatchBuilder::AAMOp},
     {0xD5, 1, &OpDispatchBuilder::AADOp},
+    {0xD6, 1, &OpDispatchBuilder::SBBOp<0, false>},
   };
 
   constexpr std::tuple<uint8_t, uint8_t, X86Tables::OpDispatchPtr> BaseOpTable_64[] = {
@@ -6327,9 +6250,8 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {0x12, 2, &OpDispatchBuilder::MOVLPOp},
     {0x14, 1, &OpDispatchBuilder::PUNPCKLOp<4>},
     {0x15, 1, &OpDispatchBuilder::PUNPCKHOp<4>},
-    {0x16, 1, &OpDispatchBuilder::MOVLHPSOp},
-    {0x17, 1, &OpDispatchBuilder::MOVUPSOp},
-    {0x28, 2, &OpDispatchBuilder::MOVUPSOp},
+    {0x16, 2, &OpDispatchBuilder::MOVHPDOp},
+    {0x28, 2, &OpDispatchBuilder::MOVAPSOp},
     {0x2A, 1, &OpDispatchBuilder::MMX_To_XMM_Vector_CVT_Int_To_Float<4, false>},
     {0x2B, 1, &OpDispatchBuilder::MOVVectorNTOp},
     {0x2C, 1, &OpDispatchBuilder::Vector_CVT_Float_To_Int<4, false, false>},
@@ -6345,7 +6267,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {0x57, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VXOR, 16>},
     {0x58, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFADD, 4>},
     {0x59, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFMUL, 4>},
-    {0x5A, 1, &OpDispatchBuilder::Vector_CVT_Float_To_Float<8, 4>},
+    {0x5A, 1, &OpDispatchBuilder::Vector_CVT_Float_To_Float<8, 4, false>},
     {0x5B, 1, &OpDispatchBuilder::Vector_CVT_Int_To_Float<4, false>},
     {0x5C, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFSUB, 4>},
     {0x5D, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFMIN, 4>},
@@ -6419,7 +6341,6 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {0xFE, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VADD, 4>},
 
     // FEX reserved instructions
-    {0x36, 1, &OpDispatchBuilder::SIGRETOp},
     {0x37, 1, &OpDispatchBuilder::CallbackReturnOp},
   };
 
@@ -6437,7 +6358,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 0), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 1), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 2), 1, &OpDispatchBuilder::ADCOp<1>},
-    {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 3), 1, &OpDispatchBuilder::SBBOp<1>},
+    {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 3), 1, &OpDispatchBuilder::SBBOp<1, true>},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 4), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 5), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x80), 6), 1, &OpDispatchBuilder::SecondaryALUOp},
@@ -6446,7 +6367,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 0), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 1), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 2), 1, &OpDispatchBuilder::ADCOp<1>},
-    {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 3), 1, &OpDispatchBuilder::SBBOp<1>},
+    {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 3), 1, &OpDispatchBuilder::SBBOp<1, true>},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 4), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 5), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x81), 6), 1, &OpDispatchBuilder::SecondaryALUOp},
@@ -6455,7 +6376,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 0), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 1), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 2), 1, &OpDispatchBuilder::ADCOp<1>},
-    {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 3), 1, &OpDispatchBuilder::SBBOp<1>}, // Unit tests find this setting flags incorrectly
+    {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 3), 1, &OpDispatchBuilder::SBBOp<1, true>},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 4), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 5), 1, &OpDispatchBuilder::SecondaryALUOp},
     {OPD(FEXCore::X86Tables::TYPE_GROUP_1, OpToIndex(0x83), 6), 1, &OpDispatchBuilder::SecondaryALUOp},
@@ -6635,7 +6556,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
     {0x57, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VXOR, 16>},
     {0x58, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFADD, 8>},
     {0x59, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFMUL, 8>},
-    {0x5A, 1, &OpDispatchBuilder::Vector_CVT_Float_To_Float<4, 8>},
+    {0x5A, 1, &OpDispatchBuilder::Vector_CVT_Float_To_Float<4, 8, false>},
     {0x5B, 1, &OpDispatchBuilder::Vector_CVT_Float_To_Int<4, false, true>},
     {0x5C, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFSUB, 8>},
     {0x5D, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VFMIN, 8>},
@@ -6827,7 +6748,7 @@ constexpr uint16_t PF_F2 = 3;
 
   constexpr std::tuple<uint8_t, uint8_t, FEXCore::X86Tables::OpDispatchPtr> SecondaryModRMExtensionOpTable[] = {
     // REG /2
-    {((1 << 3) | 0), 1, &OpDispatchBuilder::UnimplementedOp},
+    {((1 << 3) | 0), 1, &OpDispatchBuilder::XGetBVOp},
 
     // REG /7
     {((3 << 3) | 1), 1, &OpDispatchBuilder::RDTSCPOp},
@@ -7406,6 +7327,11 @@ constexpr uint16_t PF_F2 = 3;
     {OPD(0, PF_3A_66,   0x41), 1, &OpDispatchBuilder::DPPOp<8>},
     {OPD(0, PF_3A_66,   0x42), 1, &OpDispatchBuilder::MPSADBWOp},
 
+    {OPD(0, PF_3A_66,   0x60), 1, &OpDispatchBuilder::VPCMPESTRMOp},
+    {OPD(0, PF_3A_66,   0x61), 1, &OpDispatchBuilder::VPCMPESTRIOp},
+    {OPD(0, PF_3A_66,   0x62), 1, &OpDispatchBuilder::VPCMPISTRMOp},
+    {OPD(0, PF_3A_66,   0x63), 1, &OpDispatchBuilder::VPCMPISTRIOp},
+
     {OPD(0, PF_3A_NONE, 0xCC), 1, &OpDispatchBuilder::SHA1RNDS4Op},
   };
 #undef PF_3A_NONE

External/FEXCore/Source/Interface/Core/OpcodeDispatcher.h

@@ -1,24 +1,24 @@
 #pragma once
 
 #include "Interface/Core/Frontend.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 #include "Interface/Context/Context.h"
 
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Core/Context.h>
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/IR/IntrusiveIRList.h>
 #include <FEXCore/IR/IR.h>
 #include <FEXCore/IR/IREmitter.h>
 
 #include <FEXCore/Utils/LogManager.h>
+#include <FEXCore/fextl/map.h>
+#include <FEXCore/fextl/vector.h>
 
 #include <cstdint>
 #include <fmt/format.h>
-#include <map>
 #include <stddef.h>
 #include <utility>
-#include <vector>
 
 namespace FEXCore::IR {
 class Pass;
@@ -75,7 +75,7 @@ public:
   OrderedNode* flagsOpDestSigned{};
   OrderedNode* flagsOpSrcSigned{};
 
-  FEXCore::Context::Context *CTX{};
+  FEXCore::Context::ContextImpl *CTX{};
 
   // Used during new op bringup
   bool ShouldDump {false};
@@ -85,7 +85,7 @@ public:
     bool HaveEmitted;
   };
 
-  std::map<uint64_t, JumpTargetInfo> JumpTargets;
+  fextl::map<uint64_t, JumpTargetInfo> JumpTargets;
 
   OrderedNode* GetNewJumpBlock(uint64_t RIP) {
     auto it = JumpTargets.find(RIP);
@@ -149,7 +149,7 @@ public:
     return false;
   }
 
-  OpDispatchBuilder(FEXCore::Context::Context *ctx);
+  OpDispatchBuilder(FEXCore::Context::ContextImpl *ctx);
   OpDispatchBuilder(FEXCore::Utils::IntrusivePooledAllocator &Allocator);
 
   void ResetWorkingList();
@@ -157,7 +157,7 @@ public:
   bool HadDecodeFailure() const { return DecodeFailure; }
   bool NeedsBlockEnder() const { return NeedsBlockEnd; }
 
-  void BeginFunction(uint64_t RIP, std::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks);
+  void BeginFunction(uint64_t RIP, fextl::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks);
   void Finalize();
 
   // Dispatch builder functions
@@ -168,6 +168,7 @@ public:
   void MOVGPRNTOp(OpcodeArgs);
   void MOVVectorOp(OpcodeArgs);
   void MOVVectorNTOp(OpcodeArgs);
+  template<FEXCore::IR::IROps ALUIROp, FEXCore::IR::IROps AtomicFetchOp, bool RequiresMask>
   void ALUOp(OpcodeArgs);
   void INTOp(OpcodeArgs);
   void SyscallOp(OpcodeArgs);
@@ -176,12 +177,11 @@ public:
   void NOPOp(OpcodeArgs);
   void RETOp(OpcodeArgs);
   void IRETOp(OpcodeArgs);
-  void SIGRETOp(OpcodeArgs);
   void CallbackReturnOp(OpcodeArgs);
   void SecondaryALUOp(OpcodeArgs);
   template<uint32_t SrcIndex>
   void ADCOp(OpcodeArgs);
-  template<uint32_t SrcIndex>
+  template<uint32_t SrcIndex, bool SetFlags>
   void SBBOp(OpcodeArgs);
   void PUSHOp(OpcodeArgs);
   void PUSHREGOp(OpcodeArgs);
@@ -219,6 +219,7 @@ public:
   void MOVOffsetOp(OpcodeArgs);
   void CMOVOp(OpcodeArgs);
   void CPUIDOp(OpcodeArgs);
+  void XGetBVOp(OpcodeArgs);
   template<bool SHL1Bit>
   void SHLOp(OpcodeArgs);
   void SHLImmediateOp(OpcodeArgs);
@@ -304,7 +305,6 @@ public:
   // SSE
   void MOVAPSOp(OpcodeArgs);
   void MOVUPSOp(OpcodeArgs);
-  void MOVLHPSOp(OpcodeArgs);
   void MOVLPOp(OpcodeArgs);
   void MOVSHDUPOp(OpcodeArgs);
   void MOVSLDUPOp(OpcodeArgs);
@@ -356,7 +356,7 @@ public:
   void Vector_CVT_Int_To_Float(OpcodeArgs);
   template<size_t DstElementSize, size_t SrcElementSize>
   void Scalar_CVT_Float_To_Float(OpcodeArgs);
-  template<size_t DstElementSize, size_t SrcElementSize>
+  template<size_t DstElementSize, size_t SrcElementSize, bool IsAVX>
   void Vector_CVT_Float_To_Float(OpcodeArgs);
   template<size_t SrcElementSize, bool Narrow, bool HostRoundingMode>
   void Vector_CVT_Float_To_Int(OpcodeArgs);
@@ -416,12 +416,18 @@ public:
   template <size_t ElementSize, bool Scalar>
   void AVXVectorRound(OpcodeArgs);
 
+  template <size_t DstElementSize, size_t SrcElementSize>
+  void AVXScalar_CVT_Float_To_Float(OpcodeArgs);
+
   template <size_t SrcElementSize, bool Narrow, bool HostRoundingMode>
   void AVXVector_CVT_Float_To_Int(OpcodeArgs);
 
   template <size_t SrcElementSize, bool Widen>
   void AVXVector_CVT_Int_To_Float(OpcodeArgs);
 
+  template <size_t DstElementSize>
+  void AVXCVTGPR_To_FPR(OpcodeArgs);
+
   template <size_t ElementSize, bool Scalar>
   void AVXVFCMPOp(OpcodeArgs);
 
@@ -437,18 +443,29 @@ public:
 
   void VANDNOp(OpcodeArgs);
 
+  void VBLENDPDOp(OpcodeArgs);
+  void VPBLENDDOp(OpcodeArgs);
+  void VPBLENDWOp(OpcodeArgs);
+
   template <size_t ElementSize>
   void VBROADCASTOp(OpcodeArgs);
 
   template <size_t ElementSize>
   void VDPPOp(OpcodeArgs);
 
+  void VEXTRACT128Op(OpcodeArgs);
+
   template <IROps IROp, size_t ElementSize>
   void VHADDPOp(OpcodeArgs);
+  template <size_t ElementSize>
+  void VHSUBPOp(OpcodeArgs);
 
   void VINSERTOp(OpcodeArgs);
   void VINSERTPSOp(OpcodeArgs);
 
+  template <size_t ElementSize, bool IsStore>
+  void VMASKMOVOp(OpcodeArgs);
+
   void VMOVAPS_VMOVAPD_Op(OpcodeArgs);
   void VMOVUPS_VMOVUPD_Op(OpcodeArgs);
 
@@ -459,26 +476,52 @@ public:
   void VMOVSHDUPOp(OpcodeArgs);
   void VMOVSLDUPOp(OpcodeArgs);
 
+  void VMOVSDOp(OpcodeArgs);
+  void VMOVSSOp(OpcodeArgs);
+
   void VMOVVectorNTOp(OpcodeArgs);
 
+  void VMPSADBWOp(OpcodeArgs);
+
   template <size_t ElementSize>
   void VPACKSSOp(OpcodeArgs);
 
   template <size_t ElementSize>
   void VPACKUSOp(OpcodeArgs);
 
-  void VPBLENDDOp(OpcodeArgs);
+  void VPALIGNROp(OpcodeArgs);
+
+  void VPCMPESTRIOp(OpcodeArgs);
+  void VPCMPESTRMOp(OpcodeArgs);
+  void VPCMPISTRIOp(OpcodeArgs);
+  void VPCMPISTRMOp(OpcodeArgs);
 
   void VPERM2Op(OpcodeArgs);
+  void VPERMDOp(OpcodeArgs);
   void VPERMQOp(OpcodeArgs);
 
   template <size_t ElementSize>
   void VPERMILImmOp(OpcodeArgs);
+  template <size_t ElementSize>
+  void VPERMILRegOp(OpcodeArgs);
+
+  void VPHADDSWOp(OpcodeArgs);
 
   void VPHMINPOSUWOp(OpcodeArgs);
 
   template <size_t ElementSize>
   void VPHSUBOp(OpcodeArgs);
+  void VPHSUBSWOp(OpcodeArgs);
+
+  void VPINSRBOp(OpcodeArgs);
+  void VPINSRDQOp(OpcodeArgs);
+  void VPINSRWOp(OpcodeArgs);
+
+  void VPMADDUBSWOp(OpcodeArgs);
+  void VPMADDWDOp(OpcodeArgs);
+
+  template <bool IsStore>
+  void VPMASKMOVOp(OpcodeArgs);
 
   void VPMULHRSWOp(OpcodeArgs);
 
@@ -488,11 +531,19 @@ public:
   template <size_t ElementSize, bool Signed>
   void VPMULLOp(OpcodeArgs);
 
+  void VPSADBWOp(OpcodeArgs);
+
+  void VPSHUFBOp(OpcodeArgs);
+
+  template <size_t ElementSize, bool Low>
+  void VPSHUFWOp(OpcodeArgs);
+
   template <size_t ElementSize>
   void VPSLLOp(OpcodeArgs);
   void VPSLLDQOp(OpcodeArgs);
   template <size_t ElementSize>
   void VPSLLIOp(OpcodeArgs);
+  void VPSLLVOp(OpcodeArgs);
 
   template <size_t ElementSize>
   void VPSRAOp(OpcodeArgs);
@@ -501,6 +552,7 @@ public:
   void VPSRAIOp(OpcodeArgs);
 
   void VPSRAVDOp(OpcodeArgs);
+  void VPSRLVOp(OpcodeArgs);
 
   template <size_t ElementSize>
   void VPSRLDOp(OpcodeArgs);
@@ -515,6 +567,12 @@ public:
   template <size_t ElementSize>
   void VPSRLIOp(OpcodeArgs);
 
+  template <size_t ElementSize>
+  void VSHUFOp(OpcodeArgs);
+
+  template <size_t ElementSize>
+  void VTESTPOp(OpcodeArgs);
+
   void VZEROOp(OpcodeArgs);
 
   // X87 Ops
@@ -755,6 +813,8 @@ private:
   FEXCore::IR::IROp_IRHeader *Current_Header{};
   OrderedNode *Current_HeaderNode{};
 
+  void ALUOpImpl(OpcodeArgs, FEXCore::IR::IROps ALUIROp, FEXCore::IR::IROps AtomicFetchOp, bool RequiresMask);
+
   // Opcode helpers for generalizing behavior across VEX and non-VEX variants.
 
   OrderedNode* ADDSUBPOpImpl(OpcodeArgs, size_t ElementSize,
@@ -764,9 +824,18 @@ private:
   void AVXVectorScalarALUOpImpl(OpcodeArgs, IROps IROp, size_t ElementSize);
   void AVXVectorUnaryOpImpl(OpcodeArgs, IROps IROp, size_t ElementSize, bool Scalar);
 
+  template <size_t ElementSize>
+  void AVXVectorVariableBlend(OpcodeArgs);
+
+  void AVXVariableShiftImpl(OpcodeArgs, IROps IROp);
+
   OrderedNode* AESKeyGenAssistImpl(OpcodeArgs);
   OrderedNode* AESIMCImpl(OpcodeArgs);
 
+  OrderedNode* CVTGPR_To_FPRImpl(OpcodeArgs, size_t DstElementSize,
+                                 const X86Tables::DecodedOperand& Src1Op,
+                                 const X86Tables::DecodedOperand& Src2Op);
+
   OrderedNode* DPPOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
                          const X86Tables::DecodedOperand& Src2,
                          const X86Tables::DecodedOperand& Imm, size_t ElementSize);
@@ -774,21 +843,52 @@ private:
   OrderedNode* ExtendVectorElementsImpl(OpcodeArgs, size_t ElementSize,
                                         size_t DstElementSize, bool Signed);
 
+  OrderedNode* HSUBPOpImpl(OpcodeArgs, size_t ElementSize,
+                           const X86Tables::DecodedOperand& Src1Op,
+                           const X86Tables::DecodedOperand& Src2Op);
+
   OrderedNode* InsertPSOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
                               const X86Tables::DecodedOperand& Src2,
                               const X86Tables::DecodedOperand& Imm);
 
+  OrderedNode* MPSADBWOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1Op,
+                             const X86Tables::DecodedOperand& Src2Op,
+                             const X86Tables::DecodedOperand& ImmOp);
+
   OrderedNode* PACKSSOpImpl(OpcodeArgs, size_t ElementSize,
                             OrderedNode *Src1, OrderedNode *Src2);
 
   OrderedNode* PACKUSOpImpl(OpcodeArgs, size_t ElementSize,
                             OrderedNode *Src1, OrderedNode *Src2);
 
+  OrderedNode* PALIGNROpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
+                             const X86Tables::DecodedOperand& Src2,
+                             const X86Tables::DecodedOperand& Imm);
+
+  void PCMPXSTRXOpImpl(OpcodeArgs, bool IsExplicit, bool IsMask);
+
+  OrderedNode* PHADDSOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
+                            const X86Tables::DecodedOperand& Src2);
+
   OrderedNode* PHMINPOSUWOpImpl(OpcodeArgs);
 
   OrderedNode* PHSUBOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
                            const X86Tables::DecodedOperand& Src2, size_t ElementSize);
 
+  OrderedNode* PHSUBSOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1Op,
+                            const X86Tables::DecodedOperand& Src2Op);
+
+  OrderedNode* PINSROpImpl(OpcodeArgs, size_t ElementSize,
+                           const X86Tables::DecodedOperand& Src1Op,
+                           const X86Tables::DecodedOperand& Src2Op,
+                           const X86Tables::DecodedOperand& Imm);
+
+  OrderedNode* PMADDWDOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
+                             const X86Tables::DecodedOperand& Src2);
+
+  OrderedNode* PMADDUBSWOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1Op,
+                               const X86Tables::DecodedOperand& Src2Op);
+
   OrderedNode* PMULHRSWOpImpl(OpcodeArgs, OrderedNode *Src1, OrderedNode *Src2);
 
   OrderedNode* PMULHWOpImpl(OpcodeArgs, bool Signed,
@@ -797,6 +897,12 @@ private:
   OrderedNode* PMULLOpImpl(OpcodeArgs, size_t ElementSize, bool Signed,
                            OrderedNode *Src1, OrderedNode *Src2);
 
+  OrderedNode* PSADBWOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1Op,
+                            const X86Tables::DecodedOperand& Src2Op);
+
+  OrderedNode* PSHUFBOpImpl(OpcodeArgs, const X86Tables::DecodedOperand& Src1,
+                            const X86Tables::DecodedOperand& Src2);
+
   OrderedNode* PSIGNImpl(OpcodeArgs, size_t ElementSize,
                          OrderedNode *Src1, OrderedNode *Src2);
 
@@ -812,9 +918,22 @@ private:
   OrderedNode* PSRLDOpImpl(OpcodeArgs, size_t ElementSize,
                            OrderedNode *Src, OrderedNode *ShiftVec);
 
+  OrderedNode* SHUFOpImpl(OpcodeArgs, size_t ElementSize,
+                          const X86Tables::DecodedOperand& Src1,
+                          const X86Tables::DecodedOperand& Src2,
+                          const X86Tables::DecodedOperand& Imm);
+
+  void VMASKMOVOpImpl(OpcodeArgs, size_t ElementSize, size_t DataSize, bool IsStore,
+                      const X86Tables::DecodedOperand& MaskOp,
+                      const X86Tables::DecodedOperand& DataOp);
+
+  void VMOVScalarOpImpl(OpcodeArgs, size_t ElementSize);
+
   OrderedNode* VFCMPOpImpl(OpcodeArgs, size_t ElementSize, bool Scalar,
                            OrderedNode *Src1, OrderedNode *Src2, uint8_t CompType);
 
+  void VTESTOpImpl(OpcodeArgs, size_t ElementSize);
+
   void VectorALUOpImpl(OpcodeArgs, IROps IROp, size_t ElementSize);
   void VectorALUROpImpl(OpcodeArgs, IROps IROp, size_t ElementSize);
   void VectorScalarALUOpImpl(OpcodeArgs, IROps IROp, size_t ElementSize);
@@ -824,6 +943,12 @@ private:
   OrderedNode* VectorRoundImpl(OpcodeArgs, size_t ElementSize,
                                OrderedNode *Src, uint64_t Mode);
 
+  OrderedNode* Scalar_CVT_Float_To_FloatImpl(OpcodeArgs, size_t DstElementSize, size_t SrcElementSize,
+                                             const X86Tables::DecodedOperand& Src1Op,
+                                             const X86Tables::DecodedOperand& Src2Op);
+
+  void Vector_CVT_Float_To_FloatImpl(OpcodeArgs, size_t DstElementSize, size_t SrcElementSize, bool IsAVX);
+
   OrderedNode* Vector_CVT_Float_To_IntImpl(OpcodeArgs, size_t SrcElementSize, bool Narrow, bool HostRoundingMode);
 
   OrderedNode* Vector_CVT_Int_To_FloatImpl(OpcodeArgs, size_t SrcElementSize, bool Widen);
@@ -831,6 +956,8 @@ private:
   #undef OpcodeArgs
 
   OrderedNode *AppendSegmentOffset(OrderedNode *Value, uint32_t Flags, uint32_t DefaultPrefix = 0, bool Override = false);
+  OrderedNode *GetSegment(uint32_t Flags, uint32_t DefaultPrefix = 0, bool Override = false);
+
   void UpdatePrefixFromSegment(OrderedNode *Segment, uint32_t SegmentReg);
 
   enum class MemoryAccessType {
@@ -1424,21 +1551,21 @@ private:
     return !Op->Dest.IsGPR();
   }
 
-  void CreateJumpBlocks(std::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks);
+  void CreateJumpBlocks(fextl::vector<FEXCore::Frontend::Decoder::DecodedBlocks> const *Blocks);
   bool BlockSetRIP {false};
 
   bool Multiblock{};
   uint64_t Entry;
 
   OrderedNode* _StoreMemAutoTSO(FEXCore::IR::RegisterClassType Class, uint8_t Size, OrderedNode *Addr, OrderedNode *Value, uint8_t Align = 1) {
-    if (CTX->IsTSOEnabled())
+    if (CTX->IsAtomicTSOEnabled())
       return _StoreMemTSO(Class, Size, Value, Addr, Invalid(), Align, MEM_OFFSET_SXTX, 1);
     else
       return _StoreMem(Class, Size, Value, Addr, Invalid(), Align, MEM_OFFSET_SXTX, 1);
   }
 
   OrderedNode* _LoadMemAutoTSO(FEXCore::IR::RegisterClassType Class, uint8_t Size, OrderedNode *ssa0, uint8_t Align = 1) {
-    if (CTX->IsTSOEnabled())
+    if (CTX->IsAtomicTSOEnabled())
       return _LoadMemTSO(Class, Size, ssa0, Invalid(), Align, MEM_OFFSET_SXTX, 1);
     else
       return _LoadMem(Class, Size, ssa0, Invalid(), Align, MEM_OFFSET_SXTX, 1);

External/FEXCore/Source/Interface/Core/OpcodeDispatcher/Crypto.cpp

@@ -5,7 +5,8 @@ desc: Handles x86/64 Crypto instructions to IR
 $end_info$
 */
 
-#include <FEXCore/Debug/X86Tables.h>
+#include "Interface/Core/X86Tables/X86Tables.h"
+
 #include <FEXCore/IR/IREmitter.h>
 #include <FEXCore/Utils/LogManager.h>
 #include "Interface/Core/OpcodeDispatcher.h"
@@ -77,7 +78,7 @@ void OpDispatchBuilder::SHA1RNDS4Op(OpcodeArgs) {
   using FnType = OrderedNode* (*)(OpDispatchBuilder&, OrderedNode*, OrderedNode*, OrderedNode*);
 
   const auto f0 = [](OpDispatchBuilder &Self, OrderedNode *B, OrderedNode *C, OrderedNode *D) -> OrderedNode* {
-    return Self._Xor(Self._And(B, C), Self._And(Self._Not(B), D));
+    return Self._Xor(Self._And(B, C), Self._Andn(D, B));
   };
   const auto f1 = [](OpDispatchBuilder &Self, OrderedNode *B, OrderedNode *C, OrderedNode *D) -> OrderedNode* {
     return Self._Xor(Self._Xor(B, C), D);
@@ -204,7 +205,7 @@ void OpDispatchBuilder::SHA256MSG2Op(OpcodeArgs) {
 
 void OpDispatchBuilder::SHA256RNDS2Op(OpcodeArgs) {
   const auto Ch = [this](OrderedNode *E, OrderedNode *F, OrderedNode *G) -> OrderedNode* {
-    return _Xor(_And(E, F), _And(_Not(E), G));
+    return _Xor(_And(E, F), _Andn(G, E));
   };
   const auto Major = [this](OrderedNode *A, OrderedNode *B, OrderedNode *C) -> OrderedNode* {
     return _Xor(_Xor(_And(A, B), _And(A, C)), _And(B, C));
@@ -280,7 +281,7 @@ void OpDispatchBuilder::VAESIMCOp(OpcodeArgs) {
 void OpDispatchBuilder::AESEncOp(OpcodeArgs) {
   OrderedNode *Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags, -1);
   OrderedNode *Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
-  OrderedNode *Result = _VAESEnc(Dest, Src);
+  OrderedNode *Result = _VAESEnc(16, Dest, Src);
   StoreResult(FPRClass, Op, Result, -1);
 }
 
@@ -293,7 +294,7 @@ void OpDispatchBuilder::VAESEncOp(OpcodeArgs) {
 
   OrderedNode *State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
   OrderedNode *Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags, -1);
-  OrderedNode *Result = _VAESEnc(State, Key);
+  OrderedNode *Result = _VAESEnc(DstSize, State, Key);
 
   if (Is128Bit) {
     Result = _VMov(16, Result);
@@ -304,7 +305,7 @@ void OpDispatchBuilder::VAESEncOp(OpcodeArgs) {
 void OpDispatchBuilder::AESEncLastOp(OpcodeArgs) {
   OrderedNode *Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags, -1);
   OrderedNode *Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
-  OrderedNode *Result = _VAESEncLast(Dest, Src);
+  OrderedNode *Result = _VAESEncLast(16, Dest, Src);
   StoreResult(FPRClass, Op, Result, -1);
 }
 
@@ -317,7 +318,7 @@ void OpDispatchBuilder::VAESEncLastOp(OpcodeArgs) {
 
   OrderedNode *State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
   OrderedNode *Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags, -1);
-  OrderedNode *Result = _VAESEncLast(State, Key);
+  OrderedNode *Result = _VAESEncLast(DstSize, State, Key);
 
   if (Is128Bit) {
     Result = _VMov(16, Result);
@@ -328,7 +329,7 @@ void OpDispatchBuilder::VAESEncLastOp(OpcodeArgs) {
 void OpDispatchBuilder::AESDecOp(OpcodeArgs) {
   OrderedNode *Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags, -1);
   OrderedNode *Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
-  OrderedNode *Result = _VAESDec(Dest, Src);
+  OrderedNode *Result = _VAESDec(16, Dest, Src);
   StoreResult(FPRClass, Op, Result, -1);
 }
 
@@ -341,7 +342,7 @@ void OpDispatchBuilder::VAESDecOp(OpcodeArgs) {
 
   OrderedNode *State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
   OrderedNode *Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags, -1);
-  OrderedNode *Result = _VAESDec(State, Key);
+  OrderedNode *Result = _VAESDec(DstSize, State, Key);
 
   if (Is128Bit) {
     Result = _VMov(16, Result);
@@ -352,7 +353,7 @@ void OpDispatchBuilder::VAESDecOp(OpcodeArgs) {
 void OpDispatchBuilder::AESDecLastOp(OpcodeArgs) {
   OrderedNode *Dest = LoadSource(FPRClass, Op, Op->Dest, Op->Flags, -1);
   OrderedNode *Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
-  OrderedNode *Result = _VAESDecLast(Dest, Src);
+  OrderedNode *Result = _VAESDecLast(16, Dest, Src);
   StoreResult(FPRClass, Op, Result, -1);
 }
 
@@ -365,7 +366,7 @@ void OpDispatchBuilder::VAESDecLastOp(OpcodeArgs) {
 
   OrderedNode *State = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
   OrderedNode *Key = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags, -1);
-  OrderedNode *Result = _VAESDecLast(State, Key);
+  OrderedNode *Result = _VAESDecLast(DstSize, State, Key);
 
   if (Is128Bit) {
     Result = _VMov(16, Result);
@@ -399,7 +400,7 @@ void OpDispatchBuilder::PCLMULQDQOp(OpcodeArgs) {
   OrderedNode *Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
   const auto Selector = static_cast<uint8_t>(Op->Src[1].Data.Literal.Value);
 
-  auto Res = _PCLMUL(Dest, Src, Selector);
+  auto Res = _PCLMUL(16, Dest, Src, Selector);
   StoreResult(FPRClass, Op, Res, -1);
 }
 
@@ -413,7 +414,7 @@ void OpDispatchBuilder::VPCLMULQDQOp(OpcodeArgs) {
   OrderedNode *Src2 = LoadSource(FPRClass, Op, Op->Src[1], Op->Flags, -1);
   const auto Selector = static_cast<uint8_t>(Op->Src[2].Data.Literal.Value);
 
-  OrderedNode *Res = _PCLMUL(Src1, Src2, Selector);
+  OrderedNode *Res = _PCLMUL(DstSize, Src1, Src2, Selector);
   if (Is128Bit) {
     Res = _VMov(16, Res);
   }

External/FEXCore/Source/Interface/Core/OpcodeDispatcher/Flags.cpp

@@ -7,10 +7,10 @@ $end_info$
 
 #include "Interface/Context/Context.h"
 #include "Interface/Core/OpcodeDispatcher.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 
 #include <FEXCore/Core/X86Enums.h>
 #include <FEXCore/Config/Config.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/IR/IR.h>
 
@@ -52,10 +52,9 @@ void OpDispatchBuilder::SetPackedRFLAG(bool Lower8, OrderedNode *Src) {
     InvalidateDeferredFlags();
   }
 
-  auto OneConst = _Constant(1);
   for (size_t i = 0; i < NumFlags; ++i) {
     const auto FlagOffset = FlagOffsets[i];
-    auto Tmp = _And(_Lshr(Src, _Constant(FlagOffset)), OneConst);
+    auto Tmp = _Bfe(4, 1, FlagOffset, Src);
     SetRFLAG(Tmp, FlagOffset);
   }
 }
@@ -271,10 +270,8 @@ void OpDispatchBuilder::CalculcateFlags_ADC(uint8_t SrcSize, OrderedNode *Res, O
 
   // SF
   {
-    auto SignBitConst = _Constant(Size - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignOp);
   }
 
   // PF
@@ -306,28 +303,11 @@ void OpDispatchBuilder::CalculcateFlags_ADC(uint8_t SrcSize, OrderedNode *Res, O
   // OF
   // Signed
   {
-    auto NegOne = _Constant(~0ULL);
-    auto XorOp1 = _Xor(_Xor(Src1, Src2), NegOne);
+    auto XorOp1 = _Not(_Xor(Src1, Src2));
     auto XorOp2 = _Xor(Res, Src1);
     OrderedNode *AndOp1 = _And(XorOp1, XorOp2);
 
-    switch (Size) {
-    case 8:
-      AndOp1 = _Bfe(1, 7, AndOp1);
-    break;
-    case 16:
-      AndOp1 = _Bfe(1, 15, AndOp1);
-    break;
-    case 32:
-      AndOp1 = _Bfe(1, 31, AndOp1);
-    break;
-    case 64:
-      AndOp1 = _Bfe(1, 63, AndOp1);
-    break;
-    default:
-      LOGMAN_MSG_A_FMT("Unknown BFE size: {}", Size);
-    break;
-    }
+    AndOp1 = _Bfe(1, Size - 1, AndOp1);
     SetRFLAG<FEXCore::X86State::RFLAG_OF_LOC>(AndOp1);
   }
 }
@@ -342,10 +322,8 @@ void OpDispatchBuilder::CalculcateFlags_SBB(uint8_t SrcSize, OrderedNode *Res, O
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignOp);
   }
 
   // PF
@@ -380,24 +358,7 @@ void OpDispatchBuilder::CalculcateFlags_SBB(uint8_t SrcSize, OrderedNode *Res, O
     auto XorOp1 = _Xor(Src1, Src2);
     auto XorOp2 = _Xor(Res, Src1);
     OrderedNode *AndOp1 = _And(XorOp1, XorOp2);
-
-    switch (SrcSize) {
-    case 1:
-      AndOp1 = _Bfe(1, 7, AndOp1);
-    break;
-    case 2:
-      AndOp1 = _Bfe(1, 15, AndOp1);
-    break;
-    case 4:
-      AndOp1 = _Bfe(1, 31, AndOp1);
-    break;
-    case 8:
-      AndOp1 = _Bfe(1, 63, AndOp1);
-    break;
-    default:
-      LOGMAN_MSG_A_FMT("Unknown BFE size: {}", SrcSize);
-    break;
-    }
+    AndOp1 = _Bfe(1, SrcSize * 8 - 1, AndOp1);
     SetRFLAG<FEXCore::X86State::RFLAG_OF_LOC>(AndOp1);
   }
 }
@@ -412,10 +373,8 @@ void OpDispatchBuilder::CalculcateFlags_SUB(uint8_t SrcSize, OrderedNode *Res, O
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignOp);
   }
 
   // PF
@@ -469,10 +428,8 @@ void OpDispatchBuilder::CalculcateFlags_ADD(uint8_t SrcSize, OrderedNode *Res, O
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignOp);
   }
 
   // PF
@@ -500,29 +457,12 @@ void OpDispatchBuilder::CalculcateFlags_ADD(uint8_t SrcSize, OrderedNode *Res, O
 
   // OF
   {
-    auto NegOne = _Constant(~0ULL);
-    auto XorOp1 = _Xor(_Xor(Src1, Src2), NegOne);
+    auto XorOp1 = _Not(_Xor(Src1, Src2));
     auto XorOp2 = _Xor(Res, Src1);
 
     OrderedNode *AndOp1 = _And(XorOp1, XorOp2);
 
-    switch (SrcSize) {
-    case 1:
-      AndOp1 = _Bfe(1, 7, AndOp1);
-    break;
-    case 2:
-      AndOp1 = _Bfe(1, 15, AndOp1);
-    break;
-    case 4:
-      AndOp1 = _Bfe(1, 31, AndOp1);
-    break;
-    case 8:
-      AndOp1 = _Bfe(1, 63, AndOp1);
-    break;
-    default:
-      LOGMAN_MSG_A_FMT("Unknown BFE size: {}", SrcSize);
-    break;
-    }
+    AndOp1 = _Bfe(1, SrcSize * 8 - 1, AndOp1);
     SetRFLAG<FEXCore::X86State::RFLAG_OF_LOC>(AndOp1);
   }
 }
@@ -583,10 +523,8 @@ void OpDispatchBuilder::CalculcateFlags_Logical(uint8_t SrcSize, OrderedNode *Re
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignOp);
   }
 
   // PF
@@ -750,10 +688,8 @@ void OpDispatchBuilder::CalculcateFlags_SignShiftRight(uint8_t SrcSize, OrderedN
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    COND_FLAG_SET(Src2, RFLAG_SF_LOC, LshrOp);
+    auto SignBitOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    COND_FLAG_SET(Src2, RFLAG_SF_LOC, SignBitOp);
   }
 
   // OF
@@ -802,15 +738,14 @@ void OpDispatchBuilder::CalculcateFlags_ShiftLeftImmediate(uint8_t SrcSize, Orde
 
   // SF
   {
-    auto LshrOp = _Bfe(1, SrcSize * 8 - 1, Res);
-
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignOp);
 
     // OF
     // In the case of left shift. OF is only set from the result of <Top Source Bit> XOR <Top Result Bit>
     if (Shift == 1) {
       auto SourceBit = _Bfe(1, SrcSize * 8 - 1, Src1);
-      SetRFLAG<FEXCore::X86State::RFLAG_OF_LOC>(_Xor(SourceBit, LshrOp));
+      SetRFLAG<FEXCore::X86State::RFLAG_OF_LOC>(_Xor(SourceBit, SignOp));
     }
   }
 }
@@ -851,10 +786,8 @@ void OpDispatchBuilder::CalculcateFlags_SignShiftRightImmediate(uint8_t SrcSize,
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignBitOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignBitOp);
 
     // OF
     // Only defined when Shift is 1 else undefined
@@ -902,10 +835,8 @@ void OpDispatchBuilder::CalculcateFlags_ShiftRightImmediate(uint8_t SrcSize, Ord
 
   // SF
   {
-    auto SignBitConst = _Constant(SrcSize * 8 - 1);
-
-    auto LshrOp = _Lshr(Res, SignBitConst);
-    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(LshrOp);
+    auto SignBitOp = _Bfe(1, SrcSize * 8 - 1, Res);
+    SetRFLAG<FEXCore::X86State::RFLAG_SF_LOC>(SignBitOp);
   }
 
   // OF
@@ -1115,10 +1046,8 @@ void OpDispatchBuilder::CalculcateFlags_BLSI(uint8_t SrcSize, OrderedNode *Src)
 
   // SF
   {
-    auto SignBit = _Constant(SrcSize * 8 - 1);
-    auto SFOp = _Lshr(Src, SignBit);
-
-    SetRFLAG<X86State::RFLAG_SF_LOC>(SFOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Src);
+    SetRFLAG<X86State::RFLAG_SF_LOC>(SignOp);
   }
 }
 
@@ -1174,10 +1103,8 @@ void OpDispatchBuilder::CalculcateFlags_BLSR(uint8_t SrcSize, OrderedNode *Resul
 
   // SF
   {
-    auto SignBit = _Constant(SrcSize * 8 - 1);
-    auto SFOp = _Lshr(Result, SignBit);
-
-    SetRFLAG<X86State::RFLAG_SF_LOC>(SFOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Result);
+    SetRFLAG<X86State::RFLAG_SF_LOC>(SignOp);
   }
 }
 
@@ -1230,9 +1157,8 @@ void OpDispatchBuilder::CalculcateFlags_BZHI(uint8_t SrcSize, OrderedNode *Resul
 
   // SF
   {
-    auto SFOp = _Lshr(Result, Bounds);
-
-    SetRFLAG<X86State::RFLAG_SF_LOC>(SFOp);
+    auto SignOp = _Bfe(1, SrcSize * 8 - 1, Result);
+    SetRFLAG<X86State::RFLAG_SF_LOC>(SignOp);
   }
 }
 

External/FEXCore/Source/Interface/Core/OpcodeDispatcher/X87.cpp

@@ -6,10 +6,10 @@ $end_info$
 */
 
 #include "Interface/Core/OpcodeDispatcher.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/Utils/EnumUtils.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/IR/IREmitter.h>
@@ -1374,8 +1374,7 @@ void OpDispatchBuilder::X87FCMOV(OpcodeArgs) {
 
   SrcCond = _Sbfe(1, 0, SrcCond);
 
-  OrderedNode *VecCond = _VCastFromGPR(16, 8, SrcCond);
-  VecCond = _VInsGPR(16, 8, 1, VecCond, SrcCond);
+  OrderedNode *VecCond = _VDupFromGPR(16, 8, SrcCond);
 
   auto top = GetX87Top();
   OrderedNode* arg;
@@ -1388,7 +1387,7 @@ void OpDispatchBuilder::X87FCMOV(OpcodeArgs) {
 
   auto a = _LoadContextIndexed(top, 16, MMBaseOffset(), 16, FPRClass);
   auto b = _LoadContextIndexed(arg, 16, MMBaseOffset(), 16, FPRClass);
-  auto Result = _VBSL(VecCond, b, a);
+  auto Result = _VBSL(16, VecCond, b, a);
 
   // Write to ST[TOP]
   _StoreContextIndexed(Result, top, 16, MMBaseOffset(), 16, FPRClass);

External/FEXCore/Source/Interface/Core/OpcodeDispatcher/X87F64.cpp

@@ -6,10 +6,10 @@ $end_info$
 */
 
 #include "Interface/Core/OpcodeDispatcher.h"
+#include "Interface/Core/X86Tables/X86Tables.h"
 
 #include <FEXCore/Core/CoreState.h>
 #include <FEXCore/Core/X86Enums.h>
-#include <FEXCore/Debug/X86Tables.h>
 #include <FEXCore/Utils/EnumUtils.h>
 #include <FEXCore/Utils/LogManager.h>
 #include <FEXCore/IR/IREmitter.h>