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v0.34.11 linux: fix 5907 reliably

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Jul 4th, 2012
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  1. Original code:
  2.  
  3. .text:087AC378 cmp edx, eax
  4. .text:087AC37A mov [esp+4Ch], eax
  5. .text:087AC37E jnb loc_87A7034
  6. .text:087AC384 mov [esp+48h], edx
  7. .text:087AC388 mov [esp+54h], ebx
  8. ...
  9. .text:087AC440 add dword ptr [esp+48h], 4
  10. .text:087AC445 mov ebp, [esp+48h]
  11. .text:087AC449 cmp [esp+4Ch], ebp
  12. .text:087AC44D ja loc_87AC38C
  13.  
  14. Patch:
  15.  
  16. 0x76437a
  17. 89 44 24 4C
  18. 89 54 24 4C
  19.  
  20. .text:087AC37A mov [esp+4Ch], edx
  21.  
  22. 0x764384
  23. 89 54 24 48 89 5C 24 54
  24. E8 8A 51 8A FF 90 90 90
  25.  
  26. .text:087AC384 call sub_8051513
  27. .text:087AC389 nop
  28. .text:087AC38A nop
  29. .text:087AC38B nop
  30.  
  31. 0x764440
  32. 83 44 24 48 04 8B 6C 24 48 39 6C 24 4C 0F 87 39 FF FF FF
  33. 83 6C 24 48 04 8B 6C 24 48 39 6C 24 4C 0F 86 39 FF FF FF
  34.  
  35. .text:087AC440 sub dword ptr [esp+48h], 4
  36. .text:087AC445 mov ebp, [esp+48h]
  37. .text:087AC449 cmp [esp+4Ch], ebp
  38. .text:087AC44D jbe loc_87AC38C
  39.  
  40. 0x9513
  41. 90 90 90 90 90 90 90 90 90 90 90 90 90
  42. 83 E8 04 89 44 24 4C 89 5C 24 58 C3 90
  43.  
  44. .text:08051513 sub_8051513 proc near
  45. .text:08051513 sub eax, 4
  46. .text:08051516 mov [esp+4Ch], eax ; 48h
  47. .text:0805151A mov [esp+58h], ebx ; 54h
  48. .text:0805151E retn
  49. .text:0805151E sub_8051513 endp
  50.  
  51.  
  52. You can use this script to apply the generated patch below:
  53. http://stalkr.net/files/ida/idadif.py
  54.  
  55. ----8<----
  56. This difference file is created by The Interactive Disassembler
  57.  
  58. Dwarf_Fortress
  59. 00009513: 90 83
  60. 00009514: 90 E8
  61. 00009515: 90 04
  62. 00009516: 90 89
  63. 00009517: 90 44
  64. 00009518: 90 24
  65. 00009519: 90 4C
  66. 0000951A: 90 89
  67. 0000951B: 90 5C
  68. 0000951C: 90 24
  69. 0000951D: 90 58
  70. 0000951E: 90 C3
  71. 0076437B: 44 54
  72. 00764384: 89 E8
  73. 00764385: 54 8A
  74. 00764386: 24 51
  75. 00764387: 48 8A
  76. 00764388: 89 FF
  77. 00764389: 5C 90
  78. 0076438A: 24 90
  79. 0076438B: 54 90
  80. 00764441: 44 6C
  81. 0076444E: 87 86
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