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Topics - Goku

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ROM Hacking Discussion / About cheat devices
« on: May 28, 2013, 09:13:32 pm »
Hello.
There are many names for cheats options that I find in emulators: Action Replay, Game Shark, Code Breaker and Game Genie.
I would like to know how these things work and their differences.

Do they change data in an address of memory? Or an address of ROM data?

DS cheats are complex because many cheats are activated when some buttons are pressed.
DS cheats ends with "D2000000 00000000" and it seems strange.

How can existing cheat codes help to hack a ROM? Does it help to find the address of specific data in ROM?

I would like to start with DS. Other systems that I like are GBA, PSP, SNES, SMD and PS1.

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