mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-27 02:31:00 +00:00
75 lines
1.0 KiB
Plaintext
75 lines
1.0 KiB
Plaintext
AYemul converted:
|
|
|
|
5952 lines * 14 bytes worst case = 83k
|
|
|
|
|
|
5952 = 31 * 192, and 14 unique patterns so 14*192 = 2688 * 14 = 37k
|
|
|
|
Patterns: 31?
|
|
0 1 2 3 4 5 4 6 7 8 9 A 4 5 4 6 7 8 9 A 4 5 B C 7 8 9 A 9 A D
|
|
|
|
R0/R1 = A Fine/Coarse
|
|
R2/R3 = B Fine/Coarse
|
|
R4/R5 = C Fine/Coarse
|
|
R6 = Noise period
|
|
R7 = Enable (noise/tone)
|
|
R8 = A amp
|
|
R9 = B amp
|
|
R10 = C amp
|
|
R11/R12 = Envelope Period
|
|
R13 = Envelope Shape
|
|
|
|
AF,AC+AAmp
|
|
BF,BC+BAmp
|
|
CF,CC+CAmp
|
|
|
|
|
|
We don't use envelope here, so we can get by with
|
|
8 bytes/frame
|
|
2688*8=21k
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Converting MOD to PT3
|
|
|
|
Effects:
|
|
MOD PT3
|
|
~~~ ~~~
|
|
F02 Temp 100 Tone up
|
|
C0A Volume 200 Tone Down
|
|
A20 Vol slide up 300 Portamendo
|
|
400 Vibrato 400 Sample offset
|
|
3FF Tone Portamendo 500 Ornament offset
|
|
600 Vibrato
|
|
900 Envelope slide up
|
|
A00 Envelope slide down
|
|
B00 Speed
|
|
|
|
PT3 fields:
|
|
Note
|
|
Sample#
|
|
Envelope Type
|
|
Ornament Number
|
|
Channel Volume
|
|
|
|
Volume: On AY-3-8910 this is logarithmic
|
|
|
|
MOD PT3
|
|
$40 f
|
|
$35- e
|
|
$26- d
|
|
$1b- c
|
|
$13- b
|
|
$e- a
|
|
$9- 9
|
|
$7- 8
|
|
$4 7
|
|
$3 6
|
|
$2 5
|
|
$1 3
|