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[Help] Changing values from a pointer via AA

 
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w00t^`
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PostPosted: Thu Jan 24, 2008 5:59 am    Post subject: [Help] Changing values from a pointer via AA Reply with quote
Can someone please point me in the right direction as to how to change a value from a pointer using Auto Assembler

just like:

00133700:
dd 1

.... now, what if that address is a pointer? how do i change the value to 1?

Thanks
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samuri25404
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Joined: 04 May 2007
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PostPosted: Sun Jan 27, 2008 9:56 pm    Post subject: Reply with quote
I don't quite get what you're saying.

This may be what you're looking for:

If you have a pointer with the base address of 0x0000CAFE, and it has the offset 20, do this:

Code:

mov [0000CAFE+20],1 //mov 1 into the value of our pointer


or, if you want to move the value of 0xDEADBEEF, for example, into the value of the pointer:

Code:

push eax //pushing eax basically saves the value, so we don't screw stuff
              //up later
mov eax, 0000CAFE //put the base address into eax
lea eax, [eax+20] //set up the pointer
mov eax, [DEADBEEF] //put the value of DEADBEEF into our pointer
pop eax //restore eax to its original value, so we don't screw things up
            //later

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Oh jeez, watchout I'm a bias person! Locked.


Auto Assembly Tuts:
In Depth Tutorial on AA
Extended
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