this post was submitted on 23 Jan 2024
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Modder re-creates Game Boy Advance games using the audio from crash sounds (arstechnica.com)
submitted 9 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 10 points 9 months ago* (last edited 9 months ago) (1 children)

Program code for a Gameboy game wouldn't normally be sent through an audio port so this is pretty weird.

[โ€“] [email protected] 2 points 9 months ago

Could be that their audio playback is done by hardware reading from a low address buffer in parallel to the rest of the logic and just relies on that logic to update pointers otherwise it will run through the entire address space.

Or it could be their way of implementing a full address space dump on a crash without large amounts of storage available and that just includes the ROM because it's a part of that address space. But in the video, they were able to get a 100% match for the ROM using an emulator, so this isn't it unless they didn't mention chopping off a RAM section.