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N-SPC Engine/Punk Development
From SnesLab
Punk Development has their own variant of N-SPC used in an untitled shooter. The variant doesn't actually support music, as the phrase format is non-existent here. Instead, there's one pointer and one channel's worth of track data per entry, and they're all sound effects dynamically allocated. The VCMD collection doesn't have anything past $FA, and $00 terminates the SFX if it's not in a subroutine.
| Game Name | VCMD Table Location ($E0 and up) | ROM Offset |
|---|---|---|
| Untitled Shooter | 0x0BDA, relative to 0x0B1A | 0x048000 |
The raw build sorting notes can be found here.
| Command ID | Description | Register Values & Arguments |
|---|---|---|
| $00 | Stop Sound | $00 ?? ?? ?? |
| $01-$09 | Play SFX | xx ?? ?? ?? |
TODO document (including the technically new voice command)