Willy - MIDI and OPL3 Soundcard adapter for CPC
Demonstrations of Willy
- Willy OPL3 on a real CPC demoed by Prodatron
- Willy MIDI and Willy OPL3 emulated on ACE demoed by Offset
- Willy OPL3 emulated on ACE-DL demoed by Roudoudou
Weblink
Cost
The cost for a Willy soundcard adapter is 10€. This does not include any soundcard, you have to buy those separately.
Technical information
2 ports are used to control the MIDI soundcard: &FEAC for data, and &FEAD for control and status.
3 ports are used to control the OPL3 soundcard: &FEBC and &FEBE are register select ports, and &FEBD is the data port.
OPL3 offers 18 FM 2-op chans in its standard mode, but that can be configured:
- One setting converts 3 of the FM channels into a 5-channel percussion set
- Another setting pairs 12 of the FM channels into 6 FM 4-op channels
- Both settings can be used at the same time
Also, The base waveform of each chan can be chosen between 8 waveform types, including a square one. So the OPL3 can play square waves like the PSG.
Compatible Serdaco soundcards
- S2P soundcard aka General MIDI Wavetable Synth
- OPL3LPT soundcard aka Sound Blaster 16
- OPL2LPT soundcard aka AdLib
- CMSLPT soundcard aka Creative Music System or Game Blaster
- TNDLPT soundcard aka Tandy Sound
- CVX4 soundcard aka Covox