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Index > Windows > store global address to local

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swight



Joined: 02 Aug 2008
Posts: 4
swight
I have an array of ObjectData defined as a global called DotArray and a local called Size defined as a POINT. using ebx as an index. getint returns a random in eax.

For some reason the code below would work if I left the address in the register but as soon as it is moved to the local it no longer works. I think this may have something to do with a segment change from what I can see in OllyDebug(which I am still learning how to use). is there any way I can get around this. I would like to be able to free up the register for use in other places.
Code:
          lea     eax,[DotArray+ObjectData.x]
          mov     [Size.x],eax
          lea     eax,[DotArray+ObjectData.y]
          mov     [Size.y],eax
          stdcall getint,230
          mov     [Size.x+ebx*8],eax

          stdcall getint,230
          mov    [Size.y+ebx*8],eax  


    
Post 07 Aug 2008, 04:39
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asmcoder



Joined: 02 Jun 2008
Posts: 784
asmcoder
[content deleted]
Post 07 Aug 2008, 09:32
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