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Need help with inline assembly in C++

 
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Zombi3
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Joined: 02 Aug 2007
Posts: 144
PostPosted: Fri Oct 05, 2007 10:02 am    Post subject: Need help with inline assembly in C++ Reply with quote
Well i can't really find any inline assembly tutorials for C++ when it come to building trainers and what not.I usually put my opcodes in an array. Example...
Code:
   byte jmp[] ={0xE9,0xE4,0x79,0x01,0x00,0x90};
   byte code[]={0xFE,0x05,0x80,0x5E,0x44,0x00,0x80,
                0x3D,0x80,0x5E,0x44,0x00,0x02,0x0F,
                0x85,0x45,0x86,0xFE,0xFF,0x8D,0x4C,
                0x24,0x4C,0xE9,0x01,0x86,0xFE,0xFF

and thats just for doing this.
Quote:
JE 437d62
nop

inc byte ptr[445e80]
cmp byte ptr[445e80],2
jnz 4203ba
lea ecx,dword ptr ss:[esp+4c]
jmp 42037f

I have tried multiple times to getting _asm to work in C++ but for some reason writeprocessmemory writes the wrong opcodes like for example.

Code:
void _declspec(naked) Script()
{
         __asm
         {
            nop
            nop
         };         
}

with WriteProcessMemory(pi.hProcess,(LPVOID)address2,&Script,2,0)
gives me 0xE9 and 0x19.
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Jani
Grandmaster Cheater
Reputation: 2

Joined: 29 Dec 2006
Posts: 804
PostPosted: Fri Oct 05, 2007 3:16 pm    Post subject: Reply with quote
&Script isn't pointing to the address of "void _declspec(naked) Script()". Do some debugging and you'll notice. It's pointing to the very beginning of your .exe. I'm a bit lost with terminology, so I can't say what's that table. Anyway, it has jumps to all the functions you're using. It can be found at 401005h.

0xE9 is a far jmp, isn't it :)
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