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Hacking an SNES game

 
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tkx
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PostPosted: Fri Jun 10, 2011 7:19 am    Post subject: Hacking an SNES game Reply with quote

I've found the address for money in a certain game, and it works to give myself infinite money by freezing it. But now I would like to experiment further and try to find the function in assembly that subtracts from my money whenever I buy something (and change that instruction to nop).

However, when I try to find what accesses or writes to the address when I buy an item, I can only see what seems to be display functions (they get run many times per second, so when I set a breakpoint it freezes the game).

Does anyone have any tips on what I should do to find a spot to begin debugging?
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JohnT
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PostPosted: Tue Jun 14, 2011 9:37 am    Post subject: Reply with quote

if this is what you mean ... that when you try find what accesses is you have
instructions run many times

Try stoping first the what acceses thing




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tkx
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Joined: 28 Jul 2010
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PostPosted: Fri Jun 17, 2011 5:47 am    Post subject: Reply with quote

Hey thanks for replying.

I used "Find what accesses/writes this address" on many different values and it's always the same function that gets called, but with different addresses in the registers, so I think that for emulators, I'm only looking at the emulator and not the game that is being run. I'm not really sure where to go from here. I ended up finding the pointers for all of the values and just freezing them, but it would be so nice to write scripts for them.
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Geri
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PostPosted: Fri Jun 17, 2011 6:44 am    Post subject: Reply with quote

In emulators, all values are handled by a few functions only. So they are very, very, very heavily shared codes. They are not like the normal games.
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