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Merge pull request #5610 from Sonicadvance1/171

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FEXCore: Pass host type that changes codegen to FEXCore
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LC authored and GitHub committed 2026-06-29 02:04:31 -04:00
2 parents 83a989c6dc c0251dc8be
commit 3e60aa5738
7 files changed
+47 -31
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FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
+26 -25
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@@ -4778,35 +4778,36 @@ void OpDispatchBuilder::INTOp(OpcodeArgs) {
case 0xCD: { // INT imm8
uint8_t Literal = Op->Src[0].Literal();
#ifndef _WIN32
constexpr uint8_t SYSCALL_LITERAL = 0x80;
if (Literal == SYSCALL_LITERAL) {
if (Is64BitMode) [[unlikely]] {
LogMan::Msg::EFmt("[Unsupported] Trying to execute 32-bit syscall from a 64-bit process.");
UnhandledOp(Op);
if (CTX->HostFeatures.HostType == FEXCore::HostFeatures::HostTypeEnum::Linux) {
constexpr uint8_t SYSCALL_LITERAL = 0x80;
if (Literal == SYSCALL_LITERAL) {
if (Is64BitMode) [[unlikely]] {
LogMan::Msg::EFmt("[Unsupported] Trying to execute 32-bit syscall from a 64-bit process.");
UnhandledOp(Op);
return;
}
// Syscall on linux
SyscallOp(Op, false);
return;
}
} else if (CTX->HostFeatures.HostType == FEXCore::HostFeatures::HostTypeEnum::Wow64 ||
CTX->HostFeatures.HostType == FEXCore::HostFeatures::HostTypeEnum::Arm64ec) {
constexpr uint8_t SYSCALL_LITERAL = 0x2E;
if (Literal == SYSCALL_LITERAL) {
// Can be used for both 64-bit and 32-bit syscalls on windows
SyscallOp(Op, false);
return;
}
// Syscall on linux
SyscallOp(Op, false);
return;
}
#else
constexpr uint8_t SYSCALL_LITERAL = 0x2E;
if (Literal == SYSCALL_LITERAL) {
// Can be used for both 64-bit and 32-bit syscalls on windows
SyscallOp(Op, false);
return;
}
#endif
#ifdef ARCHITECTURE_arm64ec
// This is used when QueryPerformanceCounter is called on recent Windows versions, it causes CNTVCT to be written into RAX.
constexpr uint8_t GET_CNTVCT_LITERAL = 0x81;
if (Literal == GET_CNTVCT_LITERAL) {
StoreGPRRegister(X86State::REG_RAX, _CycleCounter(false));
return;
if (CTX->HostFeatures.HostType == FEXCore::HostFeatures::HostTypeEnum::Arm64ec) {
// This is used when QueryPerformanceCounter is called on recent Windows versions, it causes CNTVCT to be written into RAX.
constexpr uint8_t GET_CNTVCT_LITERAL = 0x81;
if (Literal == GET_CNTVCT_LITERAL) {
StoreGPRRegister(X86State::REG_RAX, _CycleCounter(false));
return;
}
}
}
#endif
Reason.ErrorRegister = Literal << 3 | (0b010);
Reason.Signal = Core::FAULT_SIGSEGV;