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Added comprehensive test cases for SUB instructions with complex addressing modes

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bird_egop 2025-04-13 17:55:29 +03:00
parent b11b39ac4e
commit 032030169e
1 changed files with 37 additions and 0 deletions
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37
X86DisassemblerTests/TestData/sub_tests.csv
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@ -50,3 +50,40 @@ RawBytes;Instructions
# SUB r/m16, imm8 (opcode 83 /5 with 0x66 prefix and sign extension)
6683EB42;[{ "Mnemonic": "sub", "Operands": "ebx, 0x42" }]
# Additional test cases for more complex addressing modes
# SUB with SIB byte addressing (Scale-Index-Base)
# SUB [eax+ecx*4], edx (opcode 29)
291488;[{ "Mnemonic": "sub", "Operands": "dword ptr [eax+ecx*4], edx" }]
# SUB edx, [eax+ecx*4] (opcode 2B)
2B1488;[{ "Mnemonic": "sub", "Operands": "edx, dword ptr [eax+ecx*4]" }]
# SUB with displacement-only addressing
# SUB [0x12345678], eax (opcode 29)
290578563412;[{ "Mnemonic": "sub", "Operands": "dword ptr [0x12345678], eax" }]
# SUB with segment override prefixes
# SUB fs:[ebx+0x10], ecx (opcode 29 with FS override)
64294B10;[{ "Mnemonic": "sub", "Operands": "dword ptr fs:[ebx+0x10], ecx" }]
# SUB ecx, gs:[ebx+0x10] (opcode 2B with GS override)
652B4B10;[{ "Mnemonic": "sub", "Operands": "ecx, dword ptr gs:[ebx+0x10]" }]
# SUB with complex addressing mode: base + index + scale + displacement
# SUB [eax+ecx*4+0x12345678], edx (opcode 29)
29948878563412;[{ "Mnemonic": "sub", "Operands": "dword ptr [eax+ecx*4+0x12345678], edx" }]
# Edge cases for immediate values
# SUB eax, 0x0 (opcode 83 /5 with zero immediate)
83E800;[{ "Mnemonic": "sub", "Operands": "eax, 0x00" }]
# SUB al, 0xFF (opcode 2C with max 8-bit immediate)
2CFF;[{ "Mnemonic": "sub", "Operands": "al, 0xFF" }]
# SUB eax, 0xFFFFFFFF (opcode 81 /5 with max 32-bit immediate)
81E8FFFFFFFF;[{ "Mnemonic": "sub", "Operands": "eax, 0xFFFFFFFF" }]
# SUB with negative immediate value (sign-extended)
83E8FF;[{ "Mnemonic": "sub", "Operands": "eax, 0xFFFFFFFF" }]

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