Difference between revisions of "Turbo Sound Next Control"
From SpecNext official Wiki
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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 | $FFFD |
|---|---|
| Decimal | |
| Short desc. | Controls stereo channels and selects active sound chip and sound chip channel. |
| Bit Mask | |
| Readable | No |
| Writable | Yes |
| 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.