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e.sid regs
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2022-08-26
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SID SOUND REGISTERS
v1 v2 v3 description
-- -- -- -----------
54272 54279 54286 sound freq lo
54273 54280 54287 sound freq hi
54274 54281 54288 pulse lo nybble
54275 54282 54289 pulse hi byte
54276 54283 54290 control reg:
bits
0 gate on/of
1 synch
2 ring
3 disable
4 triangle wave
5 sawtooth wave
6 pulse wave
7 random wave
54277 54284 54291 attack/decay
bits
0-3 attack
4-7 decay
54278 54285 54292 sustain/release
bits
0-3 release
4-7 sustain
54293 filter cutoff:lo nybble
54294 filter cutoff:hi nybble
54295 filter resonance
bits
0 v1 filter output
1 v2 filter output
2 v3 filter output
3 external filter input
4-7 rosonance switch
54296 volume and filter mode.
bits
0-3 volume (0=off/1-15=on).
4 lowpass filter switch
5 bandpass filter switch
6 highpass filter switch
7 voice 3 cutoff