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Text File  |  2004-01-01  |  1.3 KB  |  48 lines
  1. u                            PRINT THIS
  2.  
  3.          SID SOUND REGISTERS
  4.  
  5.  
  6.  v1    v2    v3      description
  7.  --    --    --      -----------
  8.  54272 54279 54286  sound freq lo
  9.  54273 54280 54287  sound freq hi
  10.  54274 54281 54288  pulse lo nybble
  11.  54275 54282 54289  pulse hi byte
  12.  54276 54283 54290  control reg:
  13.                     bits
  14.                     0 gate on/of
  15.                     1 synch
  16.                     2 ring
  17.                     3 disable
  18.                     4 triangle wave
  19.                     5 sawtooth wave
  20.                     6 pulse wave
  21.                     7 random wave
  22.  54277 54284 54291  attack/decay
  23.                     bits
  24.                     0-3 attack
  25.                     4-7 decay
  26.  54278 54285 54292  sustain/release
  27.                     bits
  28.                     0-3 release
  29.                     4-7 sustain
  30.  
  31.  54293  filter cutoff:lo nybble
  32.  54294  filter cutoff:hi nybble
  33.  54295  filter resonance
  34.         bits
  35.         0  v1 filter output
  36.         1  v2 filter output
  37.         2  v3 filter output
  38.         3  external filter input
  39.         4-7 rosonance switch
  40.  54296  volume and filter mode.
  41.         bits
  42.         0-3  volume (0=off/1-15=on).
  43.         4 lowpass filter switch
  44.         5 bandpass filter switch
  45.         6 highpass filter switch
  46.         7 voice 3 cutoff
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