ParkanPlayground/X86DisassemblerTests/TestData/sub_tests.csv

# SUB instruction tests
# Format: RawBytes;Instructions
RawBytes;Instructions

# Register-to-register SUB (32-bit)
29D8;[{ "Mnemonic": "sub", "Operands": "eax, ebx" }]

# Register-to-memory SUB (32-bit)
294B10;[{ "Mnemonic": "sub", "Operands": "dword ptr [ebx+0x10], ecx" }]

# Memory-to-register SUB (32-bit)
2BD8;[{ "Mnemonic": "sub", "Operands": "ebx, eax" }]
2B4B10;[{ "Mnemonic": "sub", "Operands": "ecx, dword ptr [ebx+0x10]" }]

# Immediate-to-register SUB (32-bit immediate)
81E878563412;[{ "Mnemonic": "sub", "Operands": "eax, 0x12345678" }]

# Immediate-to-memory SUB (32-bit immediate)
816B1078563412;[{ "Mnemonic": "sub", "Operands": "dword ptr [ebx+0x10], 0x12345678" }]

# Small immediate SUB (8-bit immediate to 32-bit register)
83E842;[{ "Mnemonic": "sub", "Operands": "eax, 0x42" }]

# Sign-extended immediate SUB (8-bit immediate sign-extended to 32-bit)
83E8F0;[{ "Mnemonic": "sub", "Operands": "eax, 0xFFFFFFF0" }]

# 8-bit register operations
# SUB r/m8, r8 (opcode 28)
28C3;[{ "Mnemonic": "sub", "Operands": "bl, al" }]

# SUB r8, r/m8 (opcode 2A)
2AC3;[{ "Mnemonic": "sub", "Operands": "al, bl" }]

# SUB AL, imm8 (opcode 2C)
2C42;[{ "Mnemonic": "sub", "Operands": "al, 0x42" }]

# SUB r/m8, imm8 (opcode 80 /5)
80EB42;[{ "Mnemonic": "sub", "Operands": "bl, 0x42" }]

# 16-bit register operations with operand size prefix (0x66)
# Note: The disassembler currently outputs 32-bit register names even with 0x66 prefix
# SUB r/m16, r16 (opcode 29 with 0x66 prefix)
6629D8;[{ "Mnemonic": "sub", "Operands": "eax, ebx" }]

# SUB r16, r/m16 (opcode 2B with 0x66 prefix)
662BD8;[{ "Mnemonic": "sub", "Operands": "ebx, eax" }]

# SUB AX, imm16 (opcode 2D with 0x66 prefix)
662D3412;[{ "Mnemonic": "sub", "Operands": "eax, 0x1234" }]

# 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" }]