2025-04-15 22:20:46 +03:00
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# IDIV instruction tests
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# Format: RawBytes;Instructions
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RawBytes;Instructions
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# IDIV r/m8 (opcode F6 /7)
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F6F8;[{ "Type": "IDiv", "Operands": ["al"] }]
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F6FB;[{ "Type": "IDiv", "Operands": ["bl"] }]
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F6F9;[{ "Type": "IDiv", "Operands": ["cl"] }]
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F6FA;[{ "Type": "IDiv", "Operands": ["dl"] }]
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# IDIV r/m32 (opcode F7 /7)
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F7F8;[{ "Type": "IDiv", "Operands": ["eax"] }]
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F7FB;[{ "Type": "IDiv", "Operands": ["ebx"] }]
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F7F9;[{ "Type": "IDiv", "Operands": ["ecx"] }]
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F7FA;[{ "Type": "IDiv", "Operands": ["edx"] }]
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F7FC;[{ "Type": "IDiv", "Operands": ["esp"] }]
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F7FD;[{ "Type": "IDiv", "Operands": ["ebp"] }]
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F7FE;[{ "Type": "IDiv", "Operands": ["esi"] }]
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F7FF;[{ "Type": "IDiv", "Operands": ["edi"] }]
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# IDIV with memory operands
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2025-04-16 21:16:31 +03:00
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# SPECIAL CASE: When using SIB byte with Base=101 (EBP) and Mod=00, it requires a 32-bit displacement
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# The correct encoding for "IDIV byte ptr [eax]" would be F638 (with Mod=00, R/M=0 for EAX)
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# F63C25;[{ "Type": "IDiv", "Operands": ["byte ptr [eax]"] }]
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F638;[{ "Type": "IDiv", "Operands": ["byte ptr [eax]"] }]
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# The correct encoding for "IDIV dword ptr [eax]" would be F738 (with Mod=00, R/M=0 for EAX)
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# F73C25;[{ "Type": "IDiv", "Operands": ["dword ptr [eax]"] }]
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F738;[{ "Type": "IDiv", "Operands": ["dword ptr [eax]"] }]
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# The correct encoding for "IDIV dword ptr [eax+0x10]" would be F74010 (with Mod=01, R/M=0 for EAX, disp8=0x10)
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# F73C2510000000;[{ "Type": "IDiv", "Operands": ["dword ptr [eax+0x10]"] }]
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F74010;[{ "Type": "IDiv", "Operands": ["dword ptr [eax+0x10]"] }]
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