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@PurpCat @anonymous @ins0mniak @p So, old you need to write GBA programs is an arm GCC cross-compiler and some knowledge of the GBA infrastructure ?
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@TheMadPirate @PurpCat @anonymous @ins0mniak Since it's a GB emulator and not a GBA emulator, you would need to be able to generate assembly for that CPU (Z-80-ish with a couple of tweaks to support the hardware in the device). Documentation for the hardware is easy to find.
I'd be very surprised if you could escape the emulator and do anything useful. zsnes was a mess of x86 assembly that they were gradually porting to C, WASM is JavaScript and you can't do a buffer overrun.
GBCPUman.pdf
GBZ80Opcodes.pdf