this post was submitted on 06 Nov 2025
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What if those are reverse engineered?
I am pretty sure a number of emulators do have reverse engineered bios that provide very good compatibility. I have some of those retro handhelds that run on ArkOS, and quite a few of the emulators in Retroarch do have that option. It's not perfect, but works for most of the games I want to play.
Xemu is one of those, there are a few reverse engineered or otherwise nonproprietary bios options available