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RMT 1.x module format<br />
--------------------------------<br />
<br />
header struct<br />
=============<br />
<br />
offset type desc<br />
------ ---- ----<br />
00 DWORD header string 'RMT4' or 'RMT8'<br />
04 BYTE track len ($00 means 256)<br />
05 BYTE song speed<br />
06 BYTE player freq<br />
07 BYTE format version number ($01 for player routine 1.x compatible format)<br />
08 WORD pointer to instrument pointers table<br />
0a WORD pointer to track pointers table (lo)<br />
0c WORD pointer to track pointers table (hi)<br />
0e WORD pointer to tracks list (SONG)<br />
<br />
instrument struct<br />
=================<br />
<br />
offset type desc<br />
------ ---- ----<br />
00 BYTE tlen (pointer to end of table of notes)<br />
01 BYTE tgo (pointer to loop of table of notes)<br />
02 BYTE elen (pointer to end of envelope)<br />
03 BYTE ego (pointer to loop of envelope)<br />
04 BYTE tspd (bit 0-5), tmode (bit 6), ttype (bit 7)<br />
05 BYTE audctl<br />
06 BYTE vslide<br />
07 BYTE vmin(bit 4-7)<br />
08 BYTE delay ($00 for no vibrato &amp; no fshift)<br />
09 BYTE vibrato (0-3)<br />
0a BYTE fshift<br />
0b BYTE unused<br />
0c table of notes<br />
? envelope<br />
<br />
ttype<br />
-----<br />
0 - notes<br />
1 - freqs<br />
<br />
tmode<br />
-----<br />
0 - +<br />
1 - +=<br />
<br />
TABLE OF NOTES struct<br />
=====================<br />
BYTE note or frequence (according to the ttype)<br />
<br />
ENVELOPE struct<br />
===============<br />
BYTE volume (bit 0-3 left channel) (bits 4-7 right channel<br />
(in RMT4 it's the same as bits 0-3))<br />
BYTE portamento (bit 0), distortion(bit 1-3),<br />
command (bit 4-6), filter (bit 7)<br />
BYTE XY<br />
<br />
distortion<br />
----------<br />
0 - $0v<br />
2 - $2v<br />
4 - $4v<br />
6 - $Cv 16-bit bass table tone<br />
8 - $8v<br />
A - $Av pure tone<br />
C - $Cv bass 1 table tone<br />
E - $Cv bass 2 table tone<br />
<br />
command<br />
-------<br />
0 - play BASE_NOTE + $XY semitones<br />
1 - play frequency $XY<br />
2 - play BASE_NOTE + frequency $XY<br />
3 - set BASE_NOTE += $XY semitones; play BASE_NOTE<br />
4 - set FSHIFT += frequency $XY; play BASE_NOTE<br />
5 - set PORTAMENTO speed $X and step $Y; play BASE_NOTE<br />
6 - set FILTER_SHFRQ += frequency $XY; play BASE_NOTE<br />
7 - set BASE_NOTE = $XY; play BASE_NOTE / if $XY == $80 then VOLUMEONLY mode<br />
<br />
TRACK struct<br />
============<br />
<br />
BYTE<br />
bit 0-5 note<br />
bit 6-7 volume(LO) or pause(1-3 beats) or special<br />
<br />
if note is $00-$3c:<br />
BYTE<br />
bit 0-1 volume(HI)<br />
bit 2-7 instrument number<br />
<br />
if note is $3d:<br />
BYTE<br />
bit 0-1 volume(HI) volume only<br />
<br />
if note is $3e:<br />
bit 6-7 pause<br />
if pause is $01-$03: pause 1-3 beats<br />
if pause is $00: next byte pause 1-255 beats<br />
<br />
if note is $3f:<br />
if bit 6-7 is zero: next byte speed $01-$ff<br />
if bit 6 is zero, 7 is set up: next byte is track jump pointer<br />
(go to $00-$ff from the begin of track data)<br />
if bit 6-7 is set up: END of track<br />
<br />
INSTRUMENTS TABLE<br />
=================<br />
WORD ptr_instr0<br />
WORD ptr_instr1<br />
WORD ptr_instr3<br />
...<br />
<br />
ptr_instr = 0 if instrument isn't used<br />
<br />
TRACKS TABLE (LO)<br />
=================<br />
BYTE lowbyte_of_ptr_track0<br />
BYTE lowbyte_of_ptr_track1<br />
BYTE lowbyte_of_ptr_track2<br />
...<br />
<br />
TRACKS TABLE (HI)<br />
=================<br />
BYTE highbyte_of_ptr_track0<br />
BYTE highbyte_of_ptr_track1<br />
BYTE highbyte_of_ptr_track2<br />
...<br />
<br />
ptr_track = 0 if track isn't used<br />
<br />
TRACK LIST struct (SONG)<br />
========================<br />
BYTE tracknumL1,tracknumL2,tracknumL3,tracknumL4,[tracknumR1,..,tracknumR4]<br />
BYTE tracknumL1,tracknumL2,tracknumL3,tracknumL4,[tracknumR1,..,tracknumR4]<br />
BYTE tracknumL1,tracknumL2,tracknumL3,tracknumL4,[tracknumR1,..,tracknumR4]<br />
...<br />
<br />
if tracknum is FF, then empty track is used<br />
<br />
if tracknumL1 is FE, then gotoline(BYTE)=tracknumL2, goto_pointer(WORD)=(tracknumL3,4)<br />
Note: gotoline(BYTE) is not used in player (but tracker uses it)<br />
</pre><br />
<br />
Jeśli moduł nie jest "ogołocony" (opcja "Strip" w RMT), zaraz za głównym blokiem zawierającym moduł następuje drugi blok, w którym zapisane są:<br />
<br />
* nazwa utworu (max. 64 znaki),<br />
* nazwy instrumentów (max. 32 znaki każdy).<br />
<br />
Każda nazwa kończy się zerem (ATASCII #0).<br />
<br />
[[Kategoria:Emulacja]]<br />
[[Kategoria:Formaty plików]]<br />
</div>
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