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Almost none of these games work correctly in the CHIP-8 emulator for Sony Vita. Of the 12 or so that I've tried, it's only the jam title games that seem to per
by phjesusthatguy3 6y ago
Almost none of these games work correctly in the CHIP-8 emulator for Sony Vita. Of the 12 or so that I've tried, it's only the jam title games that seem to perform the way they're supposed to :(
I blame the Vita interpreter, myself.
- RodgerTheGreat 6y agoSounds like an opportunity to give the emulator you're using a touchup! The most common problem is disagreement over the semantics of the shift instructions and how load/store treat the index register "i". In a nutshell, SCHIP on the HP-48 got these wrong, and so modern programs are a mix of depending on VIP-style CHIP-8 semantics or SCHIP-style semantics. If an interpreter is based on reference information derived from "Cowgod's reference", it likely contains the mistakes introduced in SCHIP. Out of the box, Octo behaves mostly like the original CHIP-8, but you can configure it to work more like SCHIP. With care it's possible to write programs that run correctly on both; see the linter I mentioned elsewhere in this discussion.
- phjesusthatguy3 6y agoThis seems like something I might actually be able to fix, so I think I might do that.