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drumGen.asm
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.686P
.model flat, stdcall
.stack 4096
.data
externdef drumOffset:dword
extern track3Chunk:dword
extern dynamic:byte
drumOffset dword 0bh
.code
noteEvent proto,
time:byte,
event:byte,
pitch:byte,
velocity:byte
randRange proto,
upperBound:byte
acousticBassDrumOff proto,
time:byte
acousticBassDrumOn proto
acousticSnareOff proto,
time : byte
acousticSnareOn proto
bassDrum1Off proto,
time:byte
bassDrum1On proto
clavesOff proto,
time : byte
clavesOn proto,
time:byte
closedHiHatOff proto,
time:byte
closedHiHatOn proto
highMidTomOff proto,
time : byte
highMidTomOn proto
drum0 PROTO
drum1 PROTO
drum2 PROTO
drum3 PROTO
drum4 PROTO
drum5 PROTO
drum6 PROTO
drum7 PROTO
drum8 PROTO
drum9 PROTO
drumA PROTO
drumB PROTO
drumC PROTO
drumD PROTO
drumE PROTO
drumF PROTO
drum10 PROTO
drum11 PROTO
drum12 PROTO
drum13 PROTO
drum14 PROTO
drum15 PROTO
drum16 PROTO
drum17 PROTO
drum18 PROTO
drum19 PROTO
drum1A PROTO
drum1B PROTO
drum1C PROTO
drum1D PROTO
drum1E PROTO
drum1F PROTO
drum20 PROTO
drum21 PROTO
drum22 PROTO
drum23 PROTO
drum24 PROTO
drum25 PROTO
drum26 PROTO
drum27 PROTO
drum28 PROTO
drum29 PROTO
drum2A PROTO
drum2B PROTO
drum2C PROTO
drum2D PROTO
drum2E PROTO
drum2F PROTO
drum30 PROTO
drum31 PROTO
drum32 PROTO
drum33 PROTO
drum34 PROTO
drum35 PROTO
drum36 PROTO
drum37 PROTO
drum38 PROTO
drum39 PROTO
drum3A PROTO
drum3B PROTO
drum3C PROTO
drum3D PROTO
drum3E PROTO
drumChoose proc uses eax
call drum40
ret
mov eax, 3eh
invoke randRange, al
; root of the decision tree
cmp eax, 1fh
jb below1F
je drumCall1F
ja above1F
; branch B
below1F:
cmp eax, 0fh
jb belowF
je drumCallF
ja aboveF
; branch A
above1F:
cmp eax, 2fh
jb below2F
je drumCall2F
ja above2F
; branch B->B
belowF:
cmp eax, 7
jb below7
je drumCall7
ja above7
; branch B->A
aboveF:
cmp eax, 17h
jb below17
je drumCall17
ja above17
; branch A->B
below2F:
cmp eax, 27h
jb below27
je drumCall27
ja above27
; branch A->A
above2F:
cmp eax, 37h
jb below37
je drumCall37
ja above37
; branch B->B->B
below7:
cmp eax, 3
jb below3
je drumCall3
ja above3
; branch B->B->A
above7:
cmp eax, 0bh
jb belowB
je drumCallB
ja aboveB
; branch B->A->B
below17:
cmp eax, 13h
jb below13
je drumCall13
ja above13
; branch B->A->A
above17:
cmp eax, 1Bh
jb below1B
je drumCall1B
ja above1B
; branch A->B->B
below27:
cmp eax, 23h
jb below23
je drumCall23
ja above23
; branch A->B->A
above27:
cmp eax, 2Bh
jb below2B
je drumCall2B
ja above2B
; branch A->A->B
below37:
cmp eax, 33h
jb below33
je drumCall33
ja above33
; branch A->A->A
above37:
cmp eax, 3Bh
jb below3B
je drumCall3B
ja above3B
; branch B->B->B->B
below3:
cmp eax, 1
jb drumCall0
je drumCall1
ja drumCall2
; branch B->B->B->A
above3:
cmp eax, 5
jb drumCall4
je drumCall5
ja drumCall6
; branch B->B->A->B
belowB:
cmp eax, 9
jb drumCall8
je drumCall9
ja drumCallA
; branch B->B->A->A
aboveB:
cmp eax, 0dh
jb drumCallC
je drumCallD
ja drumCallE
; branch B->A->B->B
below13:
cmp eax, 11h
jb drumCall10
je drumCall11
ja drumCall12
; branch B->A->B->A
above13:
cmp eax, 15h
jb drumCall14
je drumCall15
ja drumCall16
; branch B->A->A->B
below1B:
cmp eax, 19h
jb drumCall18
je drumCall19
ja drumCall1A
; branch B->A->A->A
above1B:
cmp eax, 1dh
jb drumCall1C
je drumCall1D
ja drumCall1E
; branch A->B->B->B
below23:
cmp eax, 21h
jb drumCall20
je drumCall21
ja drumCall22
; branch A->B->B->A
above23:
cmp eax, 25h
jb drumCall24
je drumCall25
ja drumCall26
; branch A->B->A->B
below2B:
cmp eax, 29h
jb drumCall28
je drumCall29
ja drumCall2A
; branch A->B->A->A
above2B:
cmp eax, 2dh
jb drumCall2C
je drumCall2D
ja drumCall2E
; branch A->B->B->B
below33:
cmp eax, 31h
jb drumCall30
je drumCall31
ja drumCall32
; branch A->B->B->A
above33:
cmp eax, 35h
jb drumCall34
je drumCall35
ja drumCall36
; branch A->B->A->B
below3B:
cmp eax, 39h
jb drumCall38
je drumCall39
ja drumCall3A
; branch B->B->A->A
above3B:
cmp eax, 3dh
jb drumCall3C
je drumCall3D
ja drumCall3E
; the calls themselves
drumCall0:
call drum0
ret
drumCall1:
call drum1
ret
drumCall2:
call drum2
ret
drumCall3:
call drum3
ret
drumCall4:
call drum4
ret
drumCall5:
call drum5
ret
drumCall6:
call drum6
ret
drumCall7:
call drum7
ret
drumCall8:
call drum8
ret
drumCall9:
call drum9
ret
drumCallA:
call drumA
ret
drumCallB:
call drumB
ret
drumCallC:
call drumC
ret
drumCallD:
call drumD
ret
drumCallE:
call drumE
ret
drumCallF:
call drumF
ret
drumCall10:
call drum10
ret
drumCall11:
call drum11
ret
drumCall12:
call drum12
ret
drumCall13:
call drum13
ret
drumCall14:
call drum14
ret
drumCall15:
call drum15
ret
drumCall16:
call drum16
ret
drumCall17:
call drum17
ret
drumCall18:
call drum18
ret
drumCall19:
call drum19
ret
drumCall1A:
call drum1A
ret
drumCall1B:
call drum1B
ret
drumCall1C:
call drum1C
ret
drumCall1D:
call drum1D
ret
drumCall1E:
call drum1E
ret
drumCall1F:
call drum1F
ret
drumCall20:
call drum20
ret
drumCall21:
call drum21
ret
drumCall22:
call drum22
ret
drumCall23:
call drum23
ret
drumCall24:
call drum24
ret
drumCall25:
call drum25
ret
drumCall26:
call drum26
ret
drumCall27:
call drum27
ret
drumCall28:
call drum28
ret
drumCall29:
call drum29
ret
drumCall2A:
call drum2A
ret
drumCall2B:
call drum2B
ret
drumCall2C:
call drum2C
ret
drumCall2D:
call drum2D
ret
drumCall2E:
call drum2E
ret
drumCall2F:
call drum2F
ret
drumCall30:
call drum30
ret
drumCall31:
call drum31
ret
drumCall32:
call drum32
ret
drumCall33:
call drum33
ret
drumCall34:
call drum34
ret
drumCall35:
call drum35
ret
drumCall36:
call drum36
ret
drumCall37:
call drum37
ret
drumCall38:
call drum38
ret
drumCall39:
call drum39
ret
drumCall3A:
call drum3A
ret
drumCall3B:
call drum3B
ret
drumCall3C:
call drum3C
ret
drumCall3D:
call drum3D
ret
drumCall3E:
call drum3E
ret
drumChoose endp
drum0 PROC USES ECX EDI; tricky kicks 1
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0e0h
mov ecx, 4
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 12
invoke highMidTomOff, 0
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drum0 ENDP
drum1 PROC USES ECX EDI; tricky kicks 2
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0f0h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 12
call acousticSnareOn
invoke acousticSnareOff, 24
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drum1 ENDP
drum2 PROC USES ECX EDI; tricky kicks 3
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0e0h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drum2 ENDP
drum3 PROC USES ECX EDI; tricky kicks 4
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 100h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 12
invoke acousticSnareOff, 0
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
invoke highMidTomOff, 12
call acousticBassDrumOn
invoke acousticBassDrumOff, 12
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drum3 ENDP
drum4 PROC USES ECX EDI; 8th note hats
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0a0h
mov ecx, 4
drumLoop:
cmp ecx, 0
je endLoop
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drum4 ENDP
drum5 PROC USES ECX EDI; surfing with two hands
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0b0h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drum5 ENDP
drum6 PROC USES ECX EDI; mixed hands
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0c0h
mov ecx, 4
drumLoop0:
cmp ecx, 0
je endLoop0
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
loop drumLoop0
endLoop0 :
mov ecx, 4
drumLoop1 :
cmp ecx, 0
je endLoop1
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call acousticSnareOn
invoke acousticSnareOff, 24
dec ecx
loop drumLoop1
endLoop1 :
ret
drum6 ENDP
drum7 PROC USES ECX EDI; 1 / 4 note surfin
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 70h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call highMidTomOn
invoke highMidTomOff, 48
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call acousticSnareOn
invoke acousticSnareOff, 24
call highMidTomOn
invoke highMidTomOff, 48
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 48
invoke acousticSnareOff, 0
dec ecx
jmp drumLoop
endLoop :
ret
drum7 ENDP
drum8 PROC USES ECX EDI; 2 hand swing
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0a0h
mov ecx, 4
drumLoop:
cmp ecx, 0
je endLoop
invoke noteEvent, 0, 99h, 45, dynamic; low tom
invoke noteEvent, 32, 89h, 45, dynamic
invoke noteEvent, 0, 99h, 45, dynamic; low tom
invoke noteEvent, 16, 89h, 45, dynamic
call acousticSnareOn
invoke noteEvent, 0, 99h, 45, dynamic; low tom
invoke noteEvent, 32, 89h, 38, dynamic
invoke noteEvent, 0, 89h, 45, dynamic
invoke noteEvent, 0, 99h, 45, dynamic; low tom
invoke noteEvent, 16, 89h, 45, dynamic
dec ecx
jmp drumLoop
endLoop :
ret
drum8 ENDP
drum9 PROC USES ECX EDI; kick and snare
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 40h
mov ecx, 4
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
invoke noteEvent, 48, 89h, 35, dynamic
call acousticSnareOn
invoke noteEvent, 48, 89h, 38, dynamic
dec ecx
jmp drumLoop
endLoop :
ret
drum9 ENDP
drumA PROC USES ECX EDI; kick and snare var 1
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 40h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
invoke noteEvent, 48, 89h, 35, dynamic
call acousticSnareOn
invoke noteEvent, 72, 89h, 38, dynamic
call acousticBassDrumOn
invoke acousticBassDrumOff, 24
call acousticSnareOn
invoke noteEvent, 48, 89h, 38, dynamic
dec ecx
jmp drumLoop
endLoop :
ret
drumA ENDP
drumB PROC USES ECX EDI; kick and snare var 2
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 50h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
invoke noteEvent, 48, 89h, 35, dynamic
call acousticSnareOn
invoke noteEvent, 48, 89h, 38, dynamic
call acousticBassDrumOn
invoke acousticBassDrumOff, 24
call acousticBassDrumOn
invoke acousticBassDrumOff, 24
call acousticSnareOn
invoke noteEvent, 48, 89h, 38, dynamic
dec ecx
jmp drumLoop
endLoop :
ret
drumB ENDP
drumC PROC USES ECX EDI; kick and snare var 3
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 60h
mov ecx, 2
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
invoke noteEvent, 48, 89h, 35, dynamic
call acousticSnareOn
invoke noteEvent, 48, 89h, 38, dynamic
call acousticBassDrumOn
invoke acousticBassDrumOff, 24
call acousticBassDrumOn
invoke acousticBassDrumOff, 24
call acousticSnareOn
invoke noteEvent, 24, 89h, 38, dynamic
call acousticBassDrumOn
invoke acousticBassDrumOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drumC ENDP
drumD PROC USES ECX EDI; baby's first rock beat
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0c0h
mov ecx, 4
drumLoop:
cmp ecx, 0
je endLoop
call acousticBassDrumOn
call highMidTomOn
invoke acousticBassDrumOff, 24
invoke highMidTomOff, 0
call highMidTomOn
invoke highMidTomOff, 24
call highMidTomOn
call acousticSnareOn
invoke highMidTomOff, 24
invoke acousticSnareOff, 0
call highMidTomOn
invoke highMidTomOff, 24
dec ecx
jmp drumLoop
endLoop :
ret
drumD ENDP
drumE PROC USES ECX EDI; blitzkrieg toms
mov edi, drumOffset
add edi, track3Chunk
add drumOffset, 0c0h
mov ecx, 4
drumLoop:
cmp ecx, 0
je endLoop
invoke noteEvent, 0, 99h, 45, dynamic; low tom