Difference between revisions of "UserWiki:SynaMax"
From Video Game Music Preservation Foundation Wiki
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| 0x00 || 0x15 || ? ||Changing some values crash the game, while others don't | | 0x00 || 0x15 || ? ||Changing some values crash the game, while others don't | ||
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| − | | 0x15 || 0x2 || | + | | 0x15 || 0x2 || ? ||Something to do with the song speed (Always 0x0002) |
|- | |- | ||
| 0x17 || 0x2 || ? ||(Always 0x1941) | | 0x17 || 0x2 || ? ||(Always 0x1941) | ||
Revision as of 23:42, 2 January 2017
MegaRace HERAD "DFADP.HSQ" Driver
| Offset | Size | Description | Notes |
|---|---|---|---|
| 0x00 | 0x15 | ? | Changing some values crash the game, while others don't |
| 0x15 | 0x2 | ? | Something to do with the song speed (Always 0x0002) |
| 0x17 | 0x2 | ? | (Always 0x1941) |
| 0x19 | 0x2 | Song length | (first two bytes from music file) |
| 0x1B | 0x2 | ? | (Always 0x1941) |
| 0x1D | 0x2 | ? | (OPL Timer?) |
| 0x1F | 0x2 | MIDI Measure Counter | (this counts up after every 96 MIDI ticks and is used for the song loop) |
| 0x21 | 0x2 | MIDI Tick Measure Counter | (Counts down from 0x60 aka 96 MIDI Ticks) |
| 0x23 | 0x2 | Song Repeat Counter | (Counts down from 0xFFFF after passing beginning loop measure) |
| 0x25 | 0x10 | ? | Changing some values crash the game, while others don't |
| 0x35 | 0x6 | ? | Table (00 03 01 04 02 05) |
| 0x3B | 0x6 | ? | Table (08 0B 09 0C 0A 0D) |
| 0x41 | 0x6 | ? | Table (10 13 11 14 12 15) |
| 0x47 | 0x18 | Frequency Table | These are the FNUM values that make up the 12 note Chromatic musical scale for HERAD. Basically, changing these values will modify the "tuning" of the scale. |
| 0x5F | 0x12 | FNUM/Block Number Register Values | These register values are sent directly to the OPL chip, however these values are missing the Key-On bit (bit 5, 0xB0-0xB8). |
| 0x71 | 0x9 | ? | Table (00 01 02 08 09 0A 10 11 12) |
| 0x7A | 0x16 | Fine Pitch Bend Table | |
| 0x90 | 0xA | Coarse Pitch Bend Table | |
| 0x9A | 0x2 | ? | Always 0x8000 (Changing this doesn't crash the game, but does pause playback if the value is below 0x80. Playback resumes if value is equal or greater than 80, however the value range only goes up to 0xBF) |
| 0x9C | 0x3 | Padding | (Always 0xEEEEEE, changing this doesn't affect playback) |
| 0x9F | 0x2 | ? | Two byte "ping-pong" timer that counts in bits (0x (0x1,0x2,0x4,0x8,0x10,0x20,0x40,0x80) |
| 0xA1 | 0x1 | Padding | (Always 0x90, changing this doesn't affect playback) |
| 0xA2 | 0x12 | Current Note Midi Tick Counter | (counts down until next note) |
| 0xB4 | 0x12 | MIDI Track Position | (counts up until reaching the track end value specified in the music file header) |
| 0xC6 | 0x12 | Start of MIDI Tracks | (Absolute address in music file, rather than relative address in music file header) |
| 0xD8 | 0x12 | List of MIDI tracks using drum keymap instrument | If MIDI track uses keymap instrument, the absolute offset of the instrument in the music file will be used. If the instrument changes back to a normal instrument, the value zeros out. |
| 0xEA | 0x12 | Current Instrument (first byte) / MIDI Pitch (second byte) | The pitch here is after any transpose macros have been applied. Also, if the keymap instrument is used, the first byte will display the instrument(s) that are actually being played. If no instrument or note data exist, the values will be 0xFF/0x00 respectively |
| 0xFC | 0x12 | Pitch Slide Range Flag (first byte) / Root Note Transpose (second byte) for each MIDI track | |
| 0x10E | 0x12 | Pitch Slide Duration Counter (first byte) / Pitch Slide Duration (second byte) for each MIDI track | The Pitch Slide Counter starts at the value assigned by the second byte. |
| 0x120 | 0x12 | Pitch Slide Counter (first byte) / Pitch Slide Range (second byte) for each MIDI track | The Pitch Slide Counter starts at 0x40 (unless it is transposed) and either goes up or down depending on Pitch Slide Range value. |
| 0x132 | 0x12 | Modulator Output Level Scaling (first byte) / Carrier Output Level Scaling (Second byte) | These values are taken from the current instrument. |
| 0x144 | 0x12 | Modulator Output Level (first byte) / Carrier Output Level (Second byte) | These values are taken from the current instrument. |
| 0X156 | 0x12 | Modulator Output Level Register (first byte) / Carrier Output Level Register (Second byte) | These are the final register values that are sent to the OPL chip. |
| 0x168 | 0x12 | Panning/Feedback/Connector Register Value | |
| 0x17A | 0x12 | ? | (Only affects songs that have loop points) |
| 0x18C | 0x12 | Loop Start Absolute Address for each MIDI track | (loads after the song passes the loop beginning measure) |
| 0x19E | 0x24 | ? | Seems to be just zeros |
| 0x1C2 | 0x1 | Terminator | (flashes 0xFF during playback) |
| 0x1C3 | EOF | Binary Data | (starts with "HSQ") |
