Need some help

General Chit-Chat about MAME and other emulators.
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Mike_Haggar
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Need some help

Post by Mike_Haggar »

Kinda OT for all the boards... but...

Does anybody have any experience making GameShark/Action Replay cheats for Saturn or PSX here?
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kelvSYC
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Post by kelvSYC »

I had some Game Boy GS experience, and I've read a few tutorials here and there, but here goes:

A GS code usually contains an address/value pair, plus some kind of modifier similar to the MAME cheat engine's cheat type. There could be encryption (the rival product, MonsterBrain - used to specifically hack Pokemon, did this).

For most GS units (Game Boy being the exception), the code went as

XXXXXXXX YYYY

The X contained the address, plus at the beginning they changed some of the numbers around (a la MAME cheat engine) to get one-shot or multi-byte cheats. YYYY would contain the (two-byte max) value.

It's also to note that for the N64 GS, a button had to be assigned to said code, and I think that may have an impact on the value...
kelvSYC's Guide to the Cheat Engine - http://members.shaw.ca/kelvsyc/cheatguide.html

The New Move List Cheat Collection - http://mamecheat.co.uk/forums/viewtopic.php?p=6469

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Mike_Haggar
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Post by Mike_Haggar »

Yeah... The thing I wanted help with is Master Codes...

I've created some codes with my GB GS too ;)
Consoles like Saturn needs Master Codes though...
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