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furnace/doc/7-systems/bubblesystem.md
Electric Keet 4748e185a7 Fixing something I botched. 
Hey, all those files I thought I clobbered!
2023-06-23 18:13:37 -07:00

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Bubble System WSG

a Konami-made 2 channel wavetable sound generator logic used on the Bubble System arcade board, configured with K005289, a 4-bit PROM and DAC.

however, the K005289 is just part of the logic used for pitch and wavetable ROM address. waveform select and volume control are tied with single AY-3-8910 IO for both channels. another AY-3-8910 IO is used for reading sound hardware status.

Furnace emulates this configuration as a "chip" with 32x16 wavetables.

effects

  • 10xx: change wave.