Amiga MOD Packers Described - Power Music Described
Anim ripped from Digital Illusion's MotorHead
Yeah :) at least in HTML format !.
Anim ripped from Digital Illusion's MotorHead




  Format name : Power Music
Created by : Joakim Ogren

Sources :
*
one !PM! packed file sent by Gryzor (thx !)


OFFSET
SIZE (bytes)
COMMENT
0
14h
- Title

The following is repeated 31 times
with 30 bytes description for one sample
14h
2Ah
2Ch
2Dh
2Eh
30h
16h
2
1
1
2
2
- Sample Name
- Sample Size / 2
- Finetune (0 -> F)
- Volume (0 - 40h)
- Loop Start / 2
- Loop Size / 2


3B6h
3B7h
-
3B8h
438h
43Ch
1
1
-
80h
4
?!?
- Number of pattern to play
- 7Fh (set that way for some OLD Noisetracker replayers )
- pattern table
- "!PM!" ID string
- Pattern datas. Same storing as ptk


Stored like protracker .. meaning:
  • row 01: voice 1 | voice 2 | voice 3 | voice 4
  • row 02: voice 1 | voice 2 | voice 3 | voice 4
  • ...


  • each voice is 4 bytes


  • Note Packing (same as PTK):

       ----Sample number-----
      /  /                \  \
     |  |                  |  |
     0000 0000  0000 0000  0000 0000  0000 0000
          |             |       \  /  \       /
           \           /       effect  effect
            -Note value               parameter

  • Follows Sample datas ... use the following formula to retrieve the original samples :


  •    NewSample[0] = OldSample[0]
       cpt=0
    
     Loop_Point:
       NewSample[cpt] = NewSample[cpt-1] + OldSample[cpt]
       cpt = cpt + 1;
       goto Loop_Point

     

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