WonderWitch/FreyaBIOS/Sound: Difference between revisions
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(Created page with "The Sound interrupt provides an abstraction layer for the WonderSwan's sound hardware. == Interrupts == === INT 15/AH=00h - sound_init === * AH = 00h === INT 15/AH=01h - sound_set_channel === * AH = 01h * BL = Channel Control value === INT 15/AH=02h - sound_get_channel === * AH = 02h Return: * AL = Channel Control value === INT 15/AH=03h - sound_set_output === * AH = 03h * BL = Sound#S...") |
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== Interrupts == | == Interrupts == | ||
=== INT 15/AH= | === INT $15/AH=$00 - sound_init === | ||
* AH = | * AH = $00 | ||
=== INT 15/AH= | === INT $15/AH=$01 - sound_set_channel === | ||
* AH = | * AH = $01 | ||
* BL = [[Sound#Sound Channel Control|Channel Control]] value | * BL = [[Sound#Sound Channel Control|Channel Control]] value | ||
=== INT 15/AH= | === INT $15/AH=$02 - sound_get_channel === | ||
* AH = | * AH = $02 | ||
Return: | Return: | ||
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* AL = [[Sound#Sound Channel Control|Channel Control]] value | * AL = [[Sound#Sound Channel Control|Channel Control]] value | ||
=== INT 15/AH= | === INT $15/AH=$03 - sound_set_output === | ||
* AH = | * AH = $03 | ||
* BL = [[Sound#Sound Output Control|Output Control]] value | * BL = [[Sound#Sound Output Control|Output Control]] value | ||
=== INT 15/AH= | === INT $15/AH=$04 - sound_get_output === | ||
* AH = | * AH = $04 | ||
Return: | Return: | ||
| Line 33: | Line 33: | ||
* AL = [[Sound#Sound Output Control|Output Control]] value | * AL = [[Sound#Sound Output Control|Output Control]] value | ||
=== INT 15/AH= | === INT $15/AH=$05 - sound_set_wave === | ||
* AH = | * AH = $05 | ||
* AL = Channel (0, 1, 2, 3) | * AL = Channel (0, 1, 2, 3) | ||
* DS:DX = Pointer to waveform data (16 bytes) | * DS:DX = Pointer to waveform data (16 bytes) | ||
=== INT 15/AH= | === INT $15/AH=$06 - sound_set_pitch === | ||
* AH = | * AH = $06 | ||
* AL = Channel (0, 1, 2, 3) | * AL = Channel (0, 1, 2, 3) | ||
* BX = Frequency divider (0 - 2047) | * BX = Frequency divider (0 - 2047) | ||
=== INT 15/AH= | === INT $15/AH=$07 - sound_get_pitch === | ||
* AH = | * AH = $07 | ||
* AL = Channel (0, 1, 2, 3) | * AL = Channel (0, 1, 2, 3) | ||
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* AX = Frequency divider (0 - 2047) | * AX = Frequency divider (0 - 2047) | ||
=== INT 15/AH= | === INT $15/AH=$08 - sound_set_volume === | ||
* AH = | * AH = $08 | ||
* AL = Channel (0, 1, 2, 3) | * AL = Channel (0, 1, 2, 3) | ||
* BL = [[Sound#Sound Channel Volume|Channel Volume]] value | * BL = [[Sound#Sound Channel Volume|Channel Volume]] value | ||
=== INT 15/AH= | === INT $15/AH=$09 - sound_get_volume === | ||
* AH = | * AH = $09 | ||
* AL = Channel (0, 1, 2, 3) | * AL = Channel (0, 1, 2, 3) | ||
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* AL = [[Sound#Sound Channel Volume|Channel Volume]] value | * AL = [[Sound#Sound Channel Volume|Channel Volume]] value | ||
=== INT 15/AH= | === INT $15/AH=$0A - sound_set_sweep === | ||
* AH = | * AH = $0A | ||
* BL = [[Sound#Sound Channel 3 Sweep Amount|Sweep Amount]] | * BL = [[Sound#Sound Channel 3 Sweep Amount|Sweep Amount]] | ||
* CL = [[Sound#Sound Channel 3 Sweep Ticks|Sweep Ticks]] | * CL = [[Sound#Sound Channel 3 Sweep Ticks|Sweep Ticks]] | ||
=== INT 15/AH= | === INT $15/AH=$0B - sound_get_sweep === | ||
* AH = | * AH = $0B | ||
Return: | Return: | ||
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* AH = [[Sound#Sound Channel 3 Sweep Ticks|Sweep Ticks]] | * AH = [[Sound#Sound Channel 3 Sweep Ticks|Sweep Ticks]] | ||
=== INT 15/AH= | === INT $15/AH=$0C - sound_set_noise === | ||
* AH = | * AH = $0C | ||
* BL = [[Sound#Sound Channel 4 Noise Control|Channel 4 Noise Control]] value | * BL = [[Sound#Sound Channel 4 Noise Control|Channel 4 Noise Control]] value | ||
=== INT 15/AH= | === INT $15/AH=$0D - sound_get_noise === | ||
* AH = | * AH = $0D | ||
Return: | Return: | ||
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* AL = [[Sound#Sound Channel 4 Noise Control|Channel 4 Noise Control]] value | * AL = [[Sound#Sound Channel 4 Noise Control|Channel 4 Noise Control]] value | ||
=== INT 15/AH= | === INT $15/AH=$0E - sound_get_random === | ||
* AH = | * AH = $0E | ||
Return: | Return: | ||
* AX = [[Sound#Sound Channel 4 LFSR Register|Channel 4 LFSR Register]] value | * AX = [[Sound#Sound Channel 4 LFSR Register|Channel 4 LFSR Register]] value | ||
Latest revision as of 08:20, 20 July 2024
The Sound interrupt provides an abstraction layer for the WonderSwan's sound hardware.
Interrupts
INT $15/AH=$00 - sound_init
- AH = $00
INT $15/AH=$01 - sound_set_channel
- AH = $01
- BL = Channel Control value
INT $15/AH=$02 - sound_get_channel
- AH = $02
Return:
- AL = Channel Control value
INT $15/AH=$03 - sound_set_output
- AH = $03
- BL = Output Control value
INT $15/AH=$04 - sound_get_output
- AH = $04
Return:
- AL = Output Control value
INT $15/AH=$05 - sound_set_wave
- AH = $05
- AL = Channel (0, 1, 2, 3)
- DS:DX = Pointer to waveform data (16 bytes)
INT $15/AH=$06 - sound_set_pitch
- AH = $06
- AL = Channel (0, 1, 2, 3)
- BX = Frequency divider (0 - 2047)
INT $15/AH=$07 - sound_get_pitch
- AH = $07
- AL = Channel (0, 1, 2, 3)
Return:
- AX = Frequency divider (0 - 2047)
INT $15/AH=$08 - sound_set_volume
- AH = $08
- AL = Channel (0, 1, 2, 3)
- BL = Channel Volume value
INT $15/AH=$09 - sound_get_volume
- AH = $09
- AL = Channel (0, 1, 2, 3)
Return:
- AL = Channel Volume value
INT $15/AH=$0A - sound_set_sweep
- AH = $0A
- BL = Sweep Amount
- CL = Sweep Ticks
INT $15/AH=$0B - sound_get_sweep
- AH = $0B
Return:
- AL = Sweep Amount
- AH = Sweep Ticks
INT $15/AH=$0C - sound_set_noise
- AH = $0C
- BL = Channel 4 Noise Control value
INT $15/AH=$0D - sound_get_noise
- AH = $0D
Return:
- AL = Channel 4 Noise Control value
INT $15/AH=$0E - sound_get_random
- AH = $0E
Return:
- AX = Channel 4 LFSR Register value
