Delta Music 2 final format
--------------------------
(C)1990 Bent Nielsen

"Delta music:tunes/" stores songs
"Delta music:final/" stores final modules

Reverse engineering by lclevy@club-internet.fr
Jan 2000.


offset	type	len	comments
-------------------------------------------------------------
000	b		replay routine
148	b		Bent Nielsen message
1fc	b		replay
3ac	l	4	tracl length
3bc	b		replay

878			voice 1 data
8b4			voice 2
904			voice 3
954			voice 4

9a4			voice 1
9f4			voice 2
a44			voice 3
a94			voice 4

ae4	w		period table

b8c			song data

bc6	b	4	".FNL"

bca	b	?*16	arpeggiato table

fca	l	4	track 1-4 length (in bytes)
fda	b	?	tracks
			0	b	block number
			1	b	note transpose

?	l	1	block part length
?	b	?*64	block
			0	b	1	note
			1	b	1	instrument
			2	b	1	effect number
			3	b	1	effect data
?	w	127	instruments offset table

?	w	1	instruments info table length

?	b	?*88	instruments info table

			0	w	1	len
			2	w	1	repeat
			4	w	1	replen
			6	b	15	volume
			15	b	15	vibrator
			24	w	1	bendrate ?
			26	b	1	instrument mode : synth/sample
			27	b	1	sample number
			28	b	48	waveform table


-----------------------------------

?	b	128*256	synth waveform table	

?	l	16	sample len

?	l	8	sample offset

?	b	?	first sample


-----------------------------------

a0	voice

0	l	dff0a0,dff0b0,...
4	w	dff096 mask
5	b	channel mask (set with or.b)
6	l	1st instr info
a	l	track adr
e	l	current block adr
12	w	pos in track
14	w	pos in block
16	b	sample number
17	b	waveform pos
18	w	transposed period
1a	w	period
1c	b	note
1d	b	channel vol
1e	w	channel bendrate
20	w	volume
22	w	pos in volume table
24	b	vol sustain
25	b	portamento speed
26	b	unused ?
27	b	vib direction 0=+, -1=-
28	w	final bendrate
2a	b	vib len (counter to 0)
2b	b	note transpose
2c	l	current arp table
30	w	pos in arp table
32	b	replay mode : 0=music, 1=soundfx
33	b	instrument type : <0=synth, >0=sample
34	b	vibrator pos
35	b	vib sustain
36	w	track len
38	w	?

--------------------------------------

a6	song

0	w	dff096
1	b
2	l	instr table
6	l	instr offset table
a	l	track 1 adress
e	l	track 2 adress
12	l	track 3
16	l	track 4
1a	l	1st block adr
1e	l	end of instr table
22	l	sample adr offset
26	l	sample adr table
2a	l	random generated ? not used ?
2e	b	song vol
2f	b	replay speed
30	b	speed counter
31	b	play mode : 0=normal, 1=same track pos & same block pos
32	w	track 1 len counter to 0
34	w	track 2 len counter to 0
36	w	track 3 len counter to 0
38	w	track 4 len counter to 0