@plgDavid @TheMogMiner I need to look more carefully and thinking I may need to disassemble some of the A'can games to understand better but… are we sure that there's a sound coprocessor at all? (are games loading arbitrary blobs into some RAM or something?)
Being able to observe valid 6502 machine code being uploaded to a shared port is so incredibly obvious that it's honestly a little insulting that you would just assume that we're so stupid as to think that there's a 6502 there if there isn't actually one.
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The problem is that there's so much speculation around and the source code isn't saying much what's *confirmed*. And I mean, on the Mega Drive side we used to think the SVP was a SH-1 and were proven otherwise only the moment it got emulated, so I tend to be sceptical about this.
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Also the main reason I'm looking into this now is because I was told I should make a Super A'can test ROM to try that sprite stuff (which means I need to figure out what the system is doing just to get it setup).
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