BMS (aka JaiSeq) is a sequence format from Gamecube games. As you are all aware, I have been doing analysis on the format for a while.
Known types of JaiSeq archives:
- SeqBank (.arc files) (Super Mario Sunshine, Luigi's Mansion)
- RARC (.arc files) (Zelda WW, Twilight Princess)
For games that use JaiSeq, take a look at the GC stream database, JaiSeq-powered games are usually identified as having "AW" files.
The purpose of this thread is to analyze the formats used by JaiSeq, including AW (samples), AAC (init files), BMS (sequences), and integrate support in in_cube.
More stuff coming soon.
// Generated by BreakPoint Software's Hex Workshop v4.20
// http://www.hexworkshop.com
// http://www.bpsoft.com
unsigned char rawData[16] =
{
0xA4, 0x08, 0x00, 0xA4, 0x09, 0x00, 0xA4, 0x0A, 0x00, 0xAC, 0x0B, 0x00, 0x00, 0xFE, 0x00, 0x30,
} ;
Regarding the sequences themselves, I am currently doing analysis on the sequence format. Once again, I urge all of you to annoy hcs to decode the .AW sample blocks so that I can figure out how to play this shiz.
You can find the BMS sequences at http://unknown.hcs64.com/JaiSeq
And yes, I am aware the extractor is somewhat broken.
Of course, a complete re-write might be in order, to accommodate BMS files. Even so, I'd think having something to learn from would help out a lot.
Anyway, good luck on this. I always look forward to whatever progress you may have had. Mouser X over and out.
I think there is probably more similarities with the way the nintendo ds plays sequenced data.
Edit: I just checked the bms of Donkey Kong Jungle Beat(yes i wanted the music from that game) and what i noticed is F0 and FF are very common and often with 2 bytes in between so i guess these are the note on and note off events. I could be completely wrong though.
Also the the 5th byte the bigger it is the more i see E0 in the file followed by 00 and another byte(and then E0 again). Sounds like empty channels.
edited 4:14 PM EST December 16, 2006
Stuff to implement:
- RARC support
- Yaz0/Yay0 support
Stuff to fix:
- fake RARC suport
Sequence controls might be in there as well...
UPDATE:
It was rejected by the SMTP server.
edited 10:32 PM EST December 19, 2006
Kudos to you if you manage to reverse-engineer the sequenced files.
edited 2:46 AM EST December 20, 2006
Sequences now have a different flag. For example:
unsigned char jaiseq_pikmin[4] =
{
0xC1, 0x07, 0x00, 0x0E, // extra flags
} ;
is different than
unsigned char jaiseq_standard[4] =
{
0xC1, 0x00, 0x00, 0x00, // unused bytes?
} ;
EDIT: err, screw that
that is the standard format, just stored a bit differently
edited 7:37 PM EST December 20, 2006
it is essentially AFC, just modified in a way that I don't know how to decode yet
it's probably mono