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DistortioN
Joined: 27 Feb 2010
Posts: 10
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 Posted: Sun Mar 14, 2010 4:46 am Post subject: Auto Assembly & AHk ? |
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Can i use auto assembly code in ahk ? if so how ?
i want to use that cause i want to implement a script i have for detecting a game master in a game i made a bot for.
this is the code i want to use | Code: | [ENABLE]
alloc(DetectGM,25)
label(ReturnName)
00553763: //C7 46 0C 00 00 00 00 89 47 04
jmp DetectGM
nop
nop
ReturnName:
DetectGM:
cmp [eax+70],5D4D475B //[GM]
je 00000000
mov [esi+0c],00000000
jmp ReturnName
[DISABLE]
dealloc(DetectGM)
00553763:
mov [esi+0c],00000000 |
thanks in advance |
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entropic
Joined: 21 Dec 2008
Posts: 181
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| Posted: Sun Mar 14, 2010 4:58 am Post subject: |
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| You can covert it to machine code and run it with Laszlo's MCode |
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DistortioN
Joined: 27 Feb 2010
Posts: 10
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| Posted: Sun Mar 14, 2010 2:20 pm Post subject: |
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| yeah but how to convert it into machine code then ? |
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assembler
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| Posted: Sun Mar 14, 2010 2:43 pm Post subject: |
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| DistortioN wrote: | | yeah but how to convert it into machine code then ? |
You write your code in ASM mnemonics, then you use an assembler to convert the ASM to machine code (binary processor instructions). If the code is small and you know what you are doing you can also use a debugger to covert mnemonics to binary code.
Note that it is the responibility of your code to save and restrore any registers (and/or memory) that you might use before returning from your code. Also, you must get your data from the processor stack and clean it up before returning (just like a normal dll does). A summary of these concerns may be found x86 calling conventions. Reading though the posts in the mcode thread will further enlighten you. |
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DistortioN
Joined: 27 Feb 2010
Posts: 10
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| Posted: Sun Mar 14, 2010 8:47 pm Post subject: |
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Ive managed to create a dll in c++ with a function for the asm code.
it looks like this :
| Code: | // GM Detect.cpp : Defines the exported functions for the DLL application.
//
#include "stdafx.h"
#include <windows.h>
#define JMP(frm,to) (((int)to - (int)frm)-5)
DWORD Adress = 0x00553A83;
DWORD RetAdress = (Adress + 7); // cause 2 nops
__declspec(naked) void myCodeCave ()
{
__asm
{
cmp [eax+0x70], 0x5D4D475B //[GM]
je [00000000]
mov [esi+0x0c],0x00000000
jmp RetAdress
}
}
void GMDetect ()
{
*(BYTE*)Adress = 0xe9; // defining jump opcode
*(DWORD*)(Adress+1) = JMP(Adress,myCodeCave);
*(WORD*)Adress = 0x9090;
} |
but then if i would call upon that function with dllcall() it doenst run ..
i use this code in ahk : | Code: | DllCall("LoadLibrary","Str","GMDetect.dll")
hModule:=DllCall("GetModuleHandle")
DllCall("GetProcAddress","UInt",hModule,"Str","GMDetect") |
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