Fixing door door?

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Fixing door door?
by Dwedit on 2008-09-18 (#37273)
Since Door Door's music driver is driven by APU Frame IRQ instead of vblanks, and also is very sensitive to what values are read back from the length counters, wouldn't a fixed NSF require a nonreturning init function?
Re: Fixing door door?
by Gil-Galad on 2008-09-30 (#37903)
Dwedit wrote:
Since Door Door's music driver is driven by APU Frame IRQ instead of vblanks, and also is very sensitive to what values are read back from the length counters, wouldn't a fixed NSF require a nonreturning init function?


Maybe NSF2 would cover that.

by Bregalad on 2008-09-30 (#37919)
I guess it does matter if the "Play" routine was called from NMI or IRQ, all it matters is that's it's called at a constant framerate (usually 60Hz or 50Hz) so that the NSF works.

by Dwedit on 2008-09-30 (#37931)
No, it needs to the perfectly synchronized with the APU frame counter, otherwise it plays incorrectly.