Cheat-Engine-Tables/example.CEA at master · retrobone/Cheat-Engine-Tables · GitHub

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{ Game   : gta_sa.exe
  Version:
  Date   : 2020-08-07
  Author : atult

  This script does blah blah blah
}

[ENABLE]

aobscanmodule(INJECT,gta_sa.exe,8B 01 8B 51 04 89 44 24 10) // should be unique
alloc(newmem,$1000)
alloc(flag,4)
alloc(multi,4)
label(code)
label(return)

newmem:

code:
cmp [flag],1
je atul
  mov eax,[ecx]
  mov edx,[ecx+04]
  jmp return


atul:
mov [flag],0
fld [ecx]
fmul [multi]
fstp [ecx]
fld [ecx+04]
fmul [multi]
fstp [ecx+04]
fld [ecx+08]
fmul [multi]
fstp [ecx+08]
mov eax,[ecx]
mov edx,[ecx+04]
jmp return


flag:
dd 0

multi:
dd (float)1.1


INJECT:
  jmp newmem
return:
registersymbol(flag)
registersymbol(multi)
registersymbol(INJECT)

[DISABLE]

INJECT:
  db 8B 01 8B 51 04
unregistersymbol(INJECT)
unregistersymbol(flag)
unregistersymbol(multi)
dealloc(newmem)

{
// ORIGINAL CODE - INJECTION POINT: "gta_sa.exe"+13D580

"gta_sa.exe"+13D561: 83 C4 04           -  add esp,04
"gta_sa.exe"+13D564: 3B C3              -  cmp eax,ebx
"gta_sa.exe"+13D566: 74 7B              -  je gta_sa.exe+13D5E3
"gta_sa.exe"+13D568: 8B 88 6C 04 00 00  -  mov ecx,[eax+0000046C]
"gta_sa.exe"+13D56E: F6 C5 01           -  test ch,01
"gta_sa.exe"+13D571: 74 1B              -  je gta_sa.exe+13D58E
"gta_sa.exe"+13D573: 8B 88 8C 05 00 00  -  mov ecx,[eax+0000058C]
"gta_sa.exe"+13D579: 3B CB              -  cmp ecx,ebx
"gta_sa.exe"+13D57B: 74 11              -  je gta_sa.exe+13D58E
"gta_sa.exe"+13D57D: 83 C1 44           -  add ecx,44
// ---------- INJECTING HERE ----------
"gta_sa.exe"+13D580: 8B 01              -  mov eax,[ecx]
"gta_sa.exe"+13D582: 8B 51 04           -  mov edx,[ecx+04]
// ---------- DONE INJECTING  ----------
"gta_sa.exe"+13D585: 89 44 24 10        -  mov [esp+10],eax
"gta_sa.exe"+13D589: 8B 41 08           -  mov eax,[ecx+08]
"gta_sa.exe"+13D58C: EB 0F              -  jmp gta_sa.exe+13D59D
"gta_sa.exe"+13D58E: 83 C0 44           -  add eax,44
"gta_sa.exe"+13D591: 8B 08              -  mov ecx,[eax]
"gta_sa.exe"+13D593: 8B 50 04           -  mov edx,[eax+04]
"gta_sa.exe"+13D596: 8B 40 08           -  mov eax,[eax+08]
"gta_sa.exe"+13D599: 89 4C 24 10        -  mov [esp+10],ecx
"gta_sa.exe"+13D59D: D9 44 24 10        -  fld dword ptr [esp+10]
"gta_sa.exe"+13D5A1: 89 54 24 14        -  mov [esp+14],edx
}