Merge pull request #5240 from Sonicadvance1/62

unittests/ASM: Removes superfluous warnings from nasm
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Ryan Houdek authored and GitHub committed 2026-01-19 13:37:53 -08:00
commit 548dfdc26d
13 files changed
+48 -63

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+5 -1
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@@ -24,7 +24,11 @@ mov ebp, 4
mov esi, 5
mov edi, 6
o16 pusha
; operand-size override prefix
; Nasm complains if o16 is used
; `warning: invalid operand size prefix o16, must be o32`
db 0x66
pusha
; Invert the order
mov ax, [esp + 2 * 0]
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@@ -33,6 +33,10 @@ push word 0x2
push word 0x1
push word 0x0
o16 popa
; operand-size override prefix
; Nasm complains if o16 is used
; `warning: invalid operand size prefix o16, must be o32`
db 0x66
popa
hlt
-41
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@@ -1,41 +0,0 @@
%ifdef CONFIG
{
"RegData": {
"RAX": "0x4142434445464748",
"RBX": "0x5152535455565758",
"RCX": "0x5152535455565758"
},
"MemoryRegions": {
"0x7FFFF000": "4096"
},
"MemoryData": {
"0x7FFFF000": "48 47 46 45 44 43 42 41"
}
}
%endif
; Tests to ensure that 64-bit displacement encoding works correctly without being RIP relative.
; x86-64 has two displacement encodings, one is RIP relative, one is 32-bit (signed) displacement only.
; modrm.mod = 0b00 && modrm.rm = 0b101: Means no SIB, but address mode is RIP + disp32.
; modrm.mod = 0b00 && modrm.rm = 0b100: Means SIB, but address mode is disp32.
; - if SIB.base = 0b101 && SIB.index = 0b100. Which means no registers for base and index.
; Test disp32 by mapping a page at the limit of 2GB and read data from it. Also store and load.
; If we were accidentally using RIP relative, then it would be 2GB + <low test base address>, which won't be mapped.
; Test disp32 load.
mov rax, [0x7FFF_F000]
mov rbx, 0x5152535455565758
; LEA with disp32.
lea rcx, [0x7FFF_FFF8]
; Test store with disp32 store.
mov [0x7FFF_FFF8], rbx
; Load back with the LEA to ensure it's correct.
mov rcx, [rcx]
hlt
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@@ -19,7 +19,7 @@
%rep 2000
add qword [rel data], rbx
%endrep
lea rax, [%%top]
lea rax, [rel %%top]
jpe %%top
%endmacro
@@ -20,7 +20,7 @@
%rep 37500
add qword [rel data], rbx
%endrep
lea rax, [%%top]
lea rax, [rel %%top]
jnz %%top
%endmacro
+1 -1
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@@ -14,5 +14,5 @@
; Simple test to prove that config loader's MemoryData is working
mov rax, [0x10000000]
mov rax, [abs 0x10000000]
hlt
+5 -1
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@@ -18,7 +18,11 @@ mov rsp, 0x6666666681828384
; Default: 0x48, 0x63, 0xc4
movsxd rax, esp
; Default with o16 prefix: 0x66, 0x48, 0x63, 0xc4
o16 movsxd rbx, esp
; operand-size override prefix
; Nasm complains if o16 is used
; `warning: invalid operand size prefix o16, must be o64`
db 0x66
movsxd rbx, esp
; No-rex widening prefix
db 0x63, 0xcc ; movsxd ecx, esp
; o16 prefix with no-rex widening
@@ -32,27 +32,27 @@ mov [r15 + 8 * 9], rax
; Test 1 byte offset within 4byte boundary
mov rax, 1
lock xchg word [r15 + 8 * 0 + 1], ax
xchg word [r15 + 8 * 0 + 1], ax
mov r14, rax
; Test 3 byte offset across 4byte boundary
mov rax, 1
lock xchg word [r15 + 8 * 0 + 3], ax
xchg word [r15 + 8 * 0 + 3], ax
mov r13, rax
; Test 7 byte offset across 8byte boundary
mov rax, 1
lock xchg word [r15 + 8 * 0 + 7], ax
xchg word [r15 + 8 * 0 + 7], ax
mov r12, rax
; Test 15 byte offset across 16byte boundary
mov rax, 1
lock xchg word [r15 + 8 * 0 + 15], ax
xchg word [r15 + 8 * 0 + 15], ax
mov r11, rax
; Test 63 byte offset across cacheline boundary
mov rax, 1
lock xchg word [r15 + 8 * 0 + 63], ax
xchg word [r15 + 8 * 0 + 63], ax
mov r10, rax
mov rax, qword [r15 + 8 * 0]
@@ -31,22 +31,22 @@ mov [r15 + 8 * 9], rax
; Test 3 byte offset across 4byte boundary
mov rax, 1
lock xchg dword [r15 + 8 * 0 + 3], eax
xchg dword [r15 + 8 * 0 + 3], eax
mov r13, rax
; Test 7 byte offset across 8byte boundary
mov rax, 1
lock xchg dword [r15 + 8 * 0 + 7], eax
xchg dword [r15 + 8 * 0 + 7], eax
mov r12, rax
; Test 15 byte offset across 16byte boundary
mov rax, 1
lock xchg dword [r15 + 8 * 0 + 15], eax
xchg dword [r15 + 8 * 0 + 15], eax
mov r11, rax
; Test 63 byte offset across cacheline boundary
mov rax, 1
lock xchg dword [r15 + 8 * 0 + 63], eax
xchg dword [r15 + 8 * 0 + 63], eax
mov r10, rax
mov rax, qword [r15 + 8 * 0]
@@ -30,17 +30,17 @@ mov [r15 + 8 * 9], rax
; Test 7 byte offset across 8byte boundary
mov rax, 1
lock xchg qword [r15 + 8 * 0 + 7], rax
xchg qword [r15 + 8 * 0 + 7], rax
mov r13, rax
; Test 15 byte offset across 16byte boundary
mov rax, 1
lock xchg qword [r15 + 8 * 0 + 15], rax
xchg qword [r15 + 8 * 0 + 15], rax
mov r12, rax
; Test 63 byte offset across cacheline boundary
mov rax, 1
lock xchg qword [r15 + 8 * 0 + 63], rax
xchg qword [r15 + 8 * 0 + 63], rax
mov r11, rax
mov rax, qword [r15 + 8 * 0]
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@@ -10,6 +10,10 @@
mov rsp, 0xe0001000
mov rbp, 0xe0001000
o16 enter 0x10, 0
; operand-size override prefix
; Nasm complains if o16 is used
; `warning: invalid operand size prefix o16, must be o64`
db 0x66
enter 0x10, 0
hlt
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@@ -20,7 +20,12 @@ jmp .end
.target:
mov rax, 1
o16 leave
; operand-size override prefix
; Nasm complains if o16 is used
; `warning: invalid operand size prefix o16, must be o64`
db 0x66
leave
.end:
hlt
+7 -2
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@@ -36,11 +36,16 @@ smsw cx
smsw [rsi]
mov rdx, [rsi]
o16 smsw rdi
; operand-size override prefix
; Nasm complains if o16 is used
; `warning: invalid operand size prefix o16, must be o64`
db 0x66
smsw rdi
repe smsw rsp
repne smsw rbp
o16 smsw r8w
db 0x66
smsw r8w
repe smsw r9w
repne smsw r10w