User:Freem/Sound Drivers/Mr.Pac: Difference between revisions
< User:Freem | Sound Drivers
(add command codes from SM1 driver) |
m (note usage of timers in Mr.Pac drivers; probably the same throughout the SNK M1 driver lineup? (third party drivers may do different things with the timers)) |
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| 0x0D || byte || Open/Close Flag (Software-mixed Noise) | | 0x0D || byte || Open/Close Flag (Software-mixed Noise) | ||
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==Other Notes== | |||
* Timer A seems to be used for sound effect playback. (The Timer A value is also stored in 0xFAD3 (lower 2 bits) and 0xFAD4 (upper 8 bits) in the SM1/BIOS driver) | |||
* Timer B is used as the tempo for music playback. (The Timer B value is also stored in 0xFAD4 in the SM1/BIOS driver) | |||
Revision as of 09:40, 5 May 2015
The Mr.Pac Sound Driver exists in two versions:
- Ver 1.5b by Mr.Pac h Ber.02/01/08
- Ver 2.0 by Mr.Pac h Ber.02/02/14
The information on this page primarily deals with the first version of the driver as it appears in the BIOS.
Command Codes
| Code | Description |
|---|---|
| 0x00 | No operation |
| 0x01 | Slot Switch |
| 0x02 | Play Eyecatch Music |
| 0x03 | Reset |
| 0x04 | Disable music/sound effect playback |
| 0x05 | Disable music playback |
| 0x06 | Disable sound effect playback |
| 0x07 | Enable music/sound effect playback |
| 0x08 | Enable music playback |
| 0x09 | Enable sound effect playback |
| 0x0A | Fade out (0 in SM1's TBL_MCODE)
|
| 0x0F | Stop SSG (0 in SM1's TBL_MCODE)
|
| 0x10 | ROM/RAM Check |
| 0x11 | Stop fade out (0 in SM1's TBL_MCODE)
|
Voice/Instrument Formats
ADPCM-A
| Offset | Size | Description |
|---|---|---|
| 0x00 | byte | Priority (lower value = higher priority) |
| 0x01 | word | Start Address |
| 0x03 | word | End Address |
| 0x05 | byte | Loop Count |
| 0x06 | word | Loop Start Address |
| 0x08 | word | Loop End Address |
| 0x0A | byte | Volume and Left/Right Output |
ADPCM-B
| Offset | Size | Description |
|---|---|---|
| 0x00 | byte | Priority |
| 0x01 | word | Start Address |
| 0x03 | word | End Address |
| 0x05 | byte | Loop Count |
| 0x06 | word | Loop Start Address |
| 0x08 | word | Loop End Address |
| 0x0A | word | Delta-N Sampling Rate |
| 0x0C | byte | Volume |
| 0x0D | byte | LFO Sync/Delay |
| 0x0E | byte | LFO Envelope, Left/Right Output |
| 0x0F | word | Minimum LFO Pitch |
| 0x11 | word | Maximum LFO Pitch |
| 0x13 | word | LFO Speed |
| 0x15 | byte | Volume Portamento |
| 0x16 | byte | Volume Speed |
| 0x17 | byte | Initial Volume |
| 0x18 | byte | Final Volume |
| 0x19 | byte | Portamento Speed |
FM
| Offset | Size | Description |
|---|---|---|
| 0x00 | byte | Feedback |
| 0x01 | byte | Algorithm |
| 0x02 | byte | Detune (Op1) |
| 0x03 | byte | Detune (Op2) |
| 0x04 | byte | Detune (Op3) |
| 0x05 | byte | Detune (Op4) |
| 0x06 | byte | Multi (Op1) |
| 0x07 | byte | Multi (Op2) |
| 0x08 | byte | Multi (Op3) |
| 0x09 | byte | Multi (Op4) |
| 0x0A | byte | Output (Op1) |
| 0x0B | byte | Output (Op2) |
| 0x0C | byte | Output (Op3) |
| 0x0D | byte | Output (Op4) |
| 0x0E | byte | Key Scale Rate (Op1) |
| 0x0F | byte | Key Scale Rate (Op2) |
| 0x10 | byte | Key Scale Rate (Op3) |
| 0x11 | byte | Key Scale Rate (Op4) |
| 0x12 | byte | Attack Rate (Op1) |
| 0x13 | byte | Attack Rate (Op2) |
| 0x14 | byte | Attack Rate (Op3) |
| 0x15 | byte | Attack Rate (Op4) |
| 0x16 | byte | Decay Rate (Op1) |
| 0x17 | byte | Decay Rate (Op2) |
| 0x18 | byte | Decay Rate (Op3) |
| 0x19 | byte | Decay Rate (Op4) |
| 0x1A | byte | Sustain Rate (Op1) |
| 0x1B | byte | Sustain Rate (Op2) |
| 0x1C | byte | Sustain Rate (Op3) |
| 0x1D | byte | Sustain Rate (Op4) |
| 0x1E | byte | Sustain Level (Op1) |
| 0x1F | byte | Sustain Level (Op2) |
| 0x20 | byte | Sustain Level (Op3) |
| 0x21 | byte | Sustain Level (Op4) |
| 0x22 | byte | Release Rate (Op1) |
| 0x23 | byte | Release Rate (Op2) |
| 0x24 | byte | Release Rate (Op3) |
| 0x25 | byte | Release Rate (Op4) |
| 0x26 | byte | SSG-type Envelope (Op1) |
| 0x27 | byte | SSG-type Envelope (Op2) |
| 0x28 | byte | SSG-type Envelope (Op3) |
| 0x29 | byte | SSG-type Envelope (Op4) |
| 0x2A | byte | "lfoWave" |
| 0x2B | byte | "lfoDelay" |
| 0x2C | word | "lfoSpeed" |
| 0x2E | byte | "pmd" |
| 0x2F | byte | "pms" |
| 0x30 | byte | "intCount" |
| 0x31 | byte | (unused) |
| 0x32 | byte | Hardware LFO AMS/PMS |
| 0x33 | byte | Hardware LFO ?? |
Sequence Data Header Formats
Some values need verification.
Music
| Offset | Size | Description |
|---|---|---|
| 0x00 | byte | "Select Code" |
| 0x01 | word | Pointer to FM Channel 1 sequence data |
| 0x03 | word | Pointer to FM Channel 2 sequence data |
| 0x05 | word | Pointer to FM Channel 3 sequence data |
| 0x07 | word | Pointer to FM Channel 4 sequence data |
| 0x09 | word | Pointer to ADPCM-A Channel 1 sequence data |
| 0x0B | word | Pointer to ADPCM-A Channel 2 sequence data |
| 0x0D | word | Pointer to ADPCM-A Channel 3 sequence data |
| 0x0F | word | Pointer to ADPCM-A Channel 4 sequence data |
| 0x11 | word | Pointer to ADPCM-A Channel 5 sequence data |
| 0x13 | word | Pointer to ADPCM-A Channel 6 sequence data |
| 0x15 | word | Pointer to ADPCM-B Channel sequence data |
| 0x17 | byte | Tempo (music)/Priority (effect) |
| 0x18 | byte | Initial FM Volume |
| 0x19 | byte | Initial ADPCM-A Volume |
| 0x1A | byte | Initial ADPCM-B Volume |
| 0x1B | byte | Open/Close Flag (FM Channel 1) |
| 0x1C | byte | Open/Close Flag (FM Channel 2) |
| 0x1D | byte | Open/Close Flag (FM Channel 3) |
| 0x1E | byte | Open/Close Flag (FM Channel 4) |
| 0x1F | byte | Open/Close Flag (ADPCM-A Channel 1) |
| 0x20 | byte | Open/Close Flag (ADPCM-A Channel 2) |
| 0x21 | byte | Open/Close Flag (ADPCM-A Channel 3) |
| 0x22 | byte | Open/Close Flag (ADPCM-A Channel 4) |
| 0x23 | byte | Open/Close Flag (ADPCM-A Channel 5) |
| 0x24 | byte | Open/Close Flag (ADPCM-A Channel 6) |
| 0x25 | byte | Open/Close Flag (ADPCM-B) |
Sound Effects
| Offset | Size | Description |
|---|---|---|
| 0x00 | byte | Priority |
| 0x01 | word | Pointer to SSG Channel A sequence data |
| 0x03 | word | Pointer to SSG Channel B sequence data |
| 0x05 | word | Pointer to SSG Channel C sequence data |
| 0x07 | word | Pointer to SSG Noise Channel sequence data |
| 0x09 | byte | Open/Close Flag (SSG Channel A) |
| 0x0A | byte | Open/Close Flag (SSG Channel B) |
| 0x0B | byte | Open/Close Flag (SSG Channel C) |
| 0x0C | byte | Open/Close Flag (SSG Noise Channel) |
| 0x0D | byte | Open/Close Flag (Software-mixed Noise) |
Other Notes
- Timer A seems to be used for sound effect playback. (The Timer A value is also stored in 0xFAD3 (lower 2 bits) and 0xFAD4 (upper 8 bits) in the SM1/BIOS driver)
- Timer B is used as the tempo for music playback. (The Timer B value is also stored in 0xFAD4 in the SM1/BIOS driver)