ParkanPlayground/X86DisassemblerTests/TestData/div_tests.csv

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

# DIV r/m8 (opcode F6 /6)
F6F0;[{ "Type": "Div", "Operands": ["al"] }]
F6F3;[{ "Type": "Div", "Operands": ["bl"] }]
F6F1;[{ "Type": "Div", "Operands": ["cl"] }]
F6F2;[{ "Type": "Div", "Operands": ["dl"] }]
F6F4;[{ "Type": "Div", "Operands": ["ah"] }]
F6F5;[{ "Type": "Div", "Operands": ["ch"] }]
F6F6;[{ "Type": "Div", "Operands": ["dh"] }]
F6F7;[{ "Type": "Div", "Operands": ["bh"] }]

# DIV r/m32 (opcode F7 /6)
F7F0;[{ "Type": "Div", "Operands": ["eax"] }]
F7F3;[{ "Type": "Div", "Operands": ["ebx"] }]
F7F1;[{ "Type": "Div", "Operands": ["ecx"] }]
F7F2;[{ "Type": "Div", "Operands": ["edx"] }]
F7F4;[{ "Type": "Div", "Operands": ["esp"] }]
F7F5;[{ "Type": "Div", "Operands": ["ebp"] }]
F7F6;[{ "Type": "Div", "Operands": ["esi"] }]
F7F7;[{ "Type": "Div", "Operands": ["edi"] }]

# DIV with memory operands
# Basic memory addressing

# SPECIAL CASE: When using SIB byte with Base=101 (EBP) and Mod=00, it requires a 32-bit displacement
# The correct encoding for "DIV byte ptr [eax]" would be F630 (with Mod=00, R/M=0 for EAX)
# F63425;[{ "Type": "Div", "Operands": ["byte ptr [eax]"] }]
F630;[{ "Type": "Div", "Operands": ["byte ptr [eax]"] }]

# For "DIV byte ptr [ebp]", we need to use Mod=01 with a zero displacement since [ebp] can't be encoded with Mod=00
# F63C25;[{ "Type": "Div", "Operands": ["byte ptr [ebp]"] }]
F66500;[{ "Type": "Div", "Operands": ["byte ptr [ebp]"] }]

# The correct encoding for "DIV byte ptr [eax]" would be F630 (with Mod=00, R/M=0 for EAX)
# F63825;[{ "Type": "Div", "Operands": ["byte ptr [eax]"] }]
F630;[{ "Type": "Div", "Operands": ["byte ptr [eax]"] }]

# The correct encoding for "DIV dword ptr [eax]" would be F730 (with Mod=00, R/M=0 for EAX)
# F73425;[{ "Type": "Div", "Operands": ["dword ptr [eax]"] }]
F730;[{ "Type": "Div", "Operands": ["dword ptr [eax]"] }]

# For "DIV dword ptr [ebp]", we need to use Mod=01 with a zero displacement since [ebp] can't be encoded with Mod=00
# F73C25;[{ "Type": "Div", "Operands": ["dword ptr [ebp]"] }]
F76500;[{ "Type": "Div", "Operands": ["dword ptr [ebp]"] }]

# The correct encoding for "DIV dword ptr [eax]" would be F730 (with Mod=00, R/M=0 for EAX)
# F73825;[{ "Type": "Div", "Operands": ["dword ptr [eax]"] }]
F730;[{ "Type": "Div", "Operands": ["dword ptr [eax]"] }]

# With displacement
# The correct encoding for "DIV dword ptr [eax+0x10]" would be F74010 (with Mod=01, R/M=0 for EAX, disp8=0x10)
# F7742510000000;[{ "Type": "Div", "Operands": ["dword ptr [eax+0x10]"] }]
F74010;[{ "Type": "Div", "Operands": ["dword ptr [eax+0x10]"] }]

# The correct encoding for "DIV dword ptr [eax+0x20]" would be F74020 (with Mod=01, R/M=0 for EAX, disp8=0x20)
# F7742520000000;[{ "Type": "Div", "Operands": ["dword ptr [eax+0x20]"] }]
F74020;[{ "Type": "Div", "Operands": ["dword ptr [eax+0x20]"] }]

# The correct encoding for "DIV dword ptr [eax+0x30]" would be F74030 (with Mod=01, R/M=0 for EAX, disp8=0x30)
# F7742530000000;[{ "Type": "Div", "Operands": ["dword ptr [eax+0x30]"] }]
F74030;[{ "Type": "Div", "Operands": ["dword ptr [eax+0x30]"] }]

# With SIB addressing
F7341C;[{ "Type": "Div", "Operands": ["dword ptr [esp+ebx*1]"] }]
F7345C;[{ "Type": "Div", "Operands": ["dword ptr [esp+ebx*2]"] }]
F7349C;[{ "Type": "Div", "Operands": ["dword ptr [esp+ebx*4]"] }]
F734DC;[{ "Type": "Div", "Operands": ["dword ptr [esp+ebx*8]"] }]

# With segment override prefixes
# not recognized by ghidra or online disasms
# 26F73425;[{ "Type": "Div", "Operands": ["dword ptr es:[eax]"] }]
# 2EF73425;[{ "Type": "Div", "Operands": ["dword ptr cs:[eax]"] }]
# 36F73425;[{ "Type": "Div", "Operands": ["dword ptr ss:[eax]"] }]
# 3EF73425;[{ "Type": "Div", "Operands": ["dword ptr ds:[eax]"] }]
# 64F73425;[{ "Type": "Div", "Operands": ["dword ptr fs:[eax]"] }]
# 65F73425;[{ "Type": "Div", "Operands": ["dword ptr gs:[eax]"] }]