Grego2d wrote:Also slingshot, if you look at my first attempt I'm just changing the rate of the clock, that version gives audio issues as well, so you might want to test on mister, this might only be an issue in the mister implementation.
Grego2d wrote:Couple of attempts and I think I have Z80 communication fixed. Audio is still messed up in most games, but it's improved. I think the remaining issues are caused by the 68k accessing the psg directly, but I'm not sure.
Grego2d wrote:More testing, now that I can control turbo from the osd I can see the psg is actually working correctly. Only FM sounds are a problem.
Interestingly, sonic spinball only uses the FM chip and it sounds fine besides being higher pitched.
And apparently road rash is similiar, fm only, audio plays back at higher rate when overclocked resulting in higher pitch.
Gonna try a new tactic, only accelerate ram/rom reads/writes.
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