Turbo Sound Next Control: Difference between revisions
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When written to with the top bit set, selects the active sound chip. Otherwise, selects the register number to access from the active sound chip. | When written to with the top bit set, selects the active sound chip. | ||
{| class="wikitable" | |||
! Bit !! Function | |||
|- | |||
| 7 | Must be 1 | |||
| 6 | Enable left audio | |||
| 5 | Enable right audio | |||
| 4-2 | Must be 1 | |||
| 1-0 | Select active chip. 0-3: SID, AY3, AY2, AY1. | |||
|} | |||
Otherwise, selects the register number to access from the active sound chip. | |||
Revision as of 14:03, 16 August 2017
| Number | PortNumber::$FFFD |
|---|---|
| Decimal | NumberDec:: |
| Short desc. | ShortDesc::Controls stereo channels and selects active sound chip and sound chip channel. |
| Bit Mask | PortMask:: |
| Readable | Readable::No |
| Writable | Writable::Yes |
| Subsystem | Subsystem::Turbo Sound Next |
When written to with the top bit set, selects the active sound chip.
| Bit | Function | |||
|---|---|---|---|---|
| Must be 1 | Enable left audio | Enable right audio | Must be 1 | Select active chip. 0-3: SID, AY3, AY2, AY1. |
Otherwise, selects the register number to access from the active sound chip.