AY Info
From SpecNext Wiki
| Number | PortNumber::$BFF5 |
|---|---|
| Decimal | NumberDec::49141 |
| Short desc. | ShortDesc::AY information |
| Bit Mask | PortMask::1011111111110101 |
| Readable | Readable::yes |
| Writable | Writable::no |
| Subsystem | Subsystem:: |
bits 7:6 = active AY chip 11 = AY 0 is active 10 = AY 1 is active 01 = AY 2 is active bit 5 = Reserved bits 4:0 = currently selected AY register