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SRAM Bank switching on Bootleg cartridges

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Hi everybody,

I'm currently in the process of reverse engineering some of the chinese bootleg cartridge ROMS.
As some of you may know, recently at least all Pokemon Repros are coming with batteryless save.

After some digging around in these ROMS it came to my attention, that they are using the additional SRAM (up to 1024K) that is on board of those repros.

Affected repros are:
- GE28F128W30
- 36L0R
and probably many others.

Things I discovered:
- At startup, the GBA loads a defined area...

SRAM Bank switching on Bootleg cartridges

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