+------------------------------------------------------------------------
  |
  |      SOUND INTERFACE DEVICE (SID) 6581
  |
  +------------------------------------------------------------------------
  |
  |  SID related topics:
  |
  |    ADR-Table
  |    SID-Mathmatics
  |
  |  Register description:
  |
  |   $D400/54272/SID+0       Voice 1: Frequency Control - Low-Byte
  |   $D401/54273/SID+1       Voice 1: Frequency Control - High-Byte
  |   $D402/54274/SID+2       Voice 1: Pulse Waveform Width - Low-Byte
  |   $D403/54275/SID+3       Voice 1: Pulse Waveform Width - High-Nybble
  |   $D404/54276/SID+4       Voice 1: Control Register
  |   $D405/54277/SID+5       Voice 1: Attack / Decay Cycle Control
  |   $D406/54278/SID+6       Voice 1: Sustain / Release Cycle Control
  |   $D407/54279/SID+7       Voice 2: Frequency Control - Low-Byte
  |   $D408/54280/SID+8       Voice 2: Frequency Control - High-Byte
  |   $D409/54281/SID+9       Voice 2: Pulse Waveform Width - Low-Byte
  |   $D40A/54282/SID+10      Voice 2: Pulse Waveform Width - High-Nybble
  |   $D40B/54283/SID+11      Voice 2: Control Register
  |   $D40C/54284/SID+12      Voice 2: Attack / Decay Cycle Control
  |   $D40D/54285/SID+13      Voice 2: Sustain / Release Cycle Control
  |   $D40E/54286/SID+14      Voice 3: Frequency Control - Low-Byte
  |   $D40F/54287/SID+15      Voice 3: Frequency Control - High-Byte
  |   $D410/54288/SID+16      Voice 3: Pulse Waveform Width - Low-Byte
  |   $D411/54289/SID+17      Voice 3: Pulse Waveform Width - High-Nybble
  |   $D412/54290/SID+18      Voice 3: Control Register
  |   $D413/54291/SID+19      Voice 3: Attack / Decay Cycle Control
  |   $D414/54292/SID+20      Voice 3: Sustain / Release Cycle Control
  |   $D415/54293/SID+21      Filter Cutoff Frequency: Low-Nybble
  |   $D416/54294/SID+22      Filter Cutoff Frequency: High-Byte
  |   $D417/54295/SID+23      Filter Resonance Control / Voice Input Control
  |   $D418/54296/SID+24      Select Filter Mode and Volume
  |   $D419/54297/SID+25      Analog/Digital Converter: Game Paddle 1
  |   $D41A/54298/SID+26      Analog/Digital Converter: Game Paddle 2
  |   $D41B/54299/SID+27      Oscillator 3 Output
  |   $D41C/54300/SID+28      Envelope Generator 3 Output
  |
  +------------------------------------------------------------------------

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