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- Original code:
- .text:087AC378 cmp edx, eax
- .text:087AC37A mov [esp+4Ch], eax
- .text:087AC37E jnb loc_87A7034
- .text:087AC384 mov [esp+48h], edx
- .text:087AC388 mov [esp+54h], ebx
- ...
- .text:087AC440 add dword ptr [esp+48h], 4
- .text:087AC445 mov ebp, [esp+48h]
- .text:087AC449 cmp [esp+4Ch], ebp
- .text:087AC44D ja loc_87AC38C
- Patch:
- 0x76437a
- 89 44 24 4C
- 89 54 24 4C
- .text:087AC37A mov [esp+4Ch], edx
- 0x764384
- 89 54 24 48 89 5C 24 54
- E8 8A 51 8A FF 90 90 90
- .text:087AC384 call sub_8051513
- .text:087AC389 nop
- .text:087AC38A nop
- .text:087AC38B nop
- 0x764440
- 83 44 24 48 04 8B 6C 24 48 39 6C 24 4C 0F 87 39 FF FF FF
- 83 6C 24 48 04 8B 6C 24 48 39 6C 24 4C 0F 86 39 FF FF FF
- .text:087AC440 sub dword ptr [esp+48h], 4
- .text:087AC445 mov ebp, [esp+48h]
- .text:087AC449 cmp [esp+4Ch], ebp
- .text:087AC44D jbe loc_87AC38C
- 0x9513
- 90 90 90 90 90 90 90 90 90 90 90 90 90
- 83 E8 04 89 44 24 4C 89 5C 24 58 C3 90
- .text:08051513 sub_8051513 proc near
- .text:08051513 sub eax, 4
- .text:08051516 mov [esp+4Ch], eax ; 48h
- .text:0805151A mov [esp+58h], ebx ; 54h
- .text:0805151E retn
- .text:0805151E sub_8051513 endp
- You can use this script to apply the generated patch below:
- http://stalkr.net/files/ida/idadif.py
- ----8<----
- This difference file is created by The Interactive Disassembler
- Dwarf_Fortress
- 00009513: 90 83
- 00009514: 90 E8
- 00009515: 90 04
- 00009516: 90 89
- 00009517: 90 44
- 00009518: 90 24
- 00009519: 90 4C
- 0000951A: 90 89
- 0000951B: 90 5C
- 0000951C: 90 24
- 0000951D: 90 58
- 0000951E: 90 C3
- 0076437B: 44 54
- 00764384: 89 E8
- 00764385: 54 8A
- 00764386: 24 51
- 00764387: 48 8A
- 00764388: 89 FF
- 00764389: 5C 90
- 0076438A: 24 90
- 0076438B: 54 90
- 00764441: 44 6C
- 0076444E: 87 86
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