> For my game, I have changed to a Z80-based driver. This could me allow to achieve
> more "fancy" stuff without lagging, maybe more objects on the screen, more screen
> effects, and such. With C2 I'd have to revert to the 68k driver; and although the 68k
> is clocked to work on a higher speed, I can't avoid feeling a bit more nervous about
> this. Effects that use the Horizontal Interrupt are very likely to break upon the
> slightest lag, for example.
You don't understand. The sound driver on 68k takes so much time on Genesis because it has to handle the DAC itself. Even though the C2 board does not have a Z80, it DOES have a separate chip for DAC playback that does not cost anything on the 68k.
So the only issues are playing back the music track and triggering samples, which takes almost no time.
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