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m6561: fix sound implementation #26

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floooh opened this issue Jan 17, 2020 · 1 comment
Open

m6561: fix sound implementation #26

floooh opened this issue Jan 17, 2020 · 1 comment
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@floooh
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floooh commented Jan 17, 2020 •
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@floooh floooh assigned floooh and unassigned floooh Jan 17, 2020
@floooh floooh added the bug label Jan 17, 2020
@floooh floooh changed the title m6561: fix noise implementation m6561: fix sound implementation Jan 17, 2020
@nippur72
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I'm addressing this issue, I've already implemented the 4 bit DAC and the 8 bit shift registers (aka "viznut" waveforms), and now I am working on the noise generator.

I think I've also spotted another issue on the voice counters, POKE 36874,255 should produce a sound that is lower in pitch than POKE 36874,254. This is a well known behavior of the VIC chip.

@nippur72 nippur72 mentioned this issue Jul 16, 2020
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@floooh @nippur72