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gb_ck How do I cheat? Reputation: 0
Joined: 21 Feb 2005 Posts: 2
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Posted: Fri Feb 25, 2005 8:02 am Post subject: I have a code that write to address,but i cant find pointer |
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Hi, I can find a pointer and make trainer with CE. But it's simple game. I
got a problem with another game. I found an address but i can't find a
pointer . When I "find out what accesses this address" and it show me a line:
004221f4 - 89 8e b4 00 00 00 - mov [esi+0000004b],ecx (CE tell me it's "Copy memory")
I double click on it and CE tell me "The value of the pointer needed to find this address is propably 059F4294"
Next i'm back to CE main and scan for 059F4294 value. But CE didn't find
any address... And i'm stuck here T_T . With another game, CE always show me at least 1 address (pointer).
I added "004221f4 - 89 8e b4 00 00 00 - mov [esi+0000004b],ecx" to code list and save it. Then next time play game i can load it and "find out what addresses this code write to", i will get the address again. But this is so inconvenient
Finally, what i got is the code access to that address. Please help me how can i make a trainer with it. I saw someone can make a trainer for this
address. I dont know how can he got pointer >.<"
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Dark Byte Site Admin Reputation: 457
Joined: 09 May 2003 Posts: 25262 Location: The netherlands
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Posted: Fri Feb 25, 2005 9:42 am Post subject: |
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this is one of those situations where a little assembler knowledge can help.
the value of esi propably gets changed after it got it's value. e.g: after getting the pointer, it increases esi with a value and uses that as the base+4b to get the right address. You'll have to look/step through the assembler code yorself to find out what the calculation is and find it that way.
you could also do some code injection. (e.g make a jump to a empty spot, and write there code that saves the value of esi on a static address for your trainer) But, that'll require even more assembler knowledge.
Oh yes, when scanning for the pointer I recommend changing the array it scans to 0 to 7fffffff. I usually don't recommend the stack to be used for game hacking, but with some newer games programmed in OOP languages the base of the stack often stays the same for a long time.
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