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player.asm
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player.asm
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; ProTracker2: Compiled Music Player v1.01 ;
; by Andrew Collier ;
; ;
; Free for use in programs provided ProTracker is mentioned ;
; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1997
;
; VERSION HISTORY:
;
; 1.01 In DOPATTBREAK, for end-of-song looping, changed
; to LD DE,(RESETPLAYER+1) instead of a literal which
; was not initialised.
; 31-5-2000
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
STARTPLAYER:
RESETPLAYER:
LD HL,32768
JP RPLAYERDASH
PLAYROUTINE:
LD HL,SOUNDTABLE
LD BC,511
LD E,0
BYTE0: LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE1: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE2: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE3: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE4: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE5: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE6: LD E,8
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE7: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTEA: LD D,16
LD A,(SOUNDTABLE+12)
OUT (C),D
DEC B
OUT (C),A
INC B
BYTE8: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE9: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTEB: INC D
LD A,(SOUNDTABLE+13)
OUT (C),D
DEC B
OUT (C),A
INC B
BYTE10: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE11: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE14: LD E,18
LD HL,SOUNDTABLE+14
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE15: INC E
INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE16: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE17: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE18: INC E
INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
BYTE19: INC E
LD A,(HL)
INC L
OUT (C),E
DEC B
OUT (C),A
INC B
ret
AFTERSOUNDCHIP:
DELAY: EQU $+1
LD A,00
DEC A
JP NZ,NOCHANGES
PATTDELAY: EQU $+1
LD A,00
OR A
JR Z,NOPATTERND
DEC A
LD (PATTDELAY),A
JP PATDELAYTEMPO
NOPATTERND:
LD (DELAYFLAG1),A
LD (DELAYFLAG2),A
LD (DELAYFLAG3),A
LD (DELAYFLAG4),A
LD (DELAYFLAG5),A
LD (DELAYFLAG6),A
NEXTPLAYADDR: EQU $+1
LD HL,0000
NEXTCOMMAND1: LD A,(HL)
LD (JRCOMMAND1),A
JRCOMMAND1: EQU $+1
JR JRSTARTS
JRSTARTS:
JRNOTE: EQU $-JRSTARTS
JP DONOTE1
JRNEWINST: EQU $-JRSTARTS
JP DONEWINST1
JRNEWORN: EQU $-JRSTARTS
JP DONEWORN1
JRNEWBOTH: EQU $-JRSTARTS
JP DONEWBOTH1
JRNOORN: EQU $-JRSTARTS
JP DONOORN1
JRNOORNINS: EQU $-JRSTARTS
JP DONOORNINS1
JRNOCOMMAND: EQU $-JRSTARTS
JP DONOCOMMAND1
JRSETVOLUME: EQU $-JRSTARTS
JP DOSETVOLUME1
JRCUTNOTE: EQU $-JRSTARTS
JP DOCUTNOTE1
JRSETCHORD: EQU $-JRSTARTS
JP DOSETCHORD1
JRUPSLIDE: EQU $-JRSTARTS
JP DOUPSLIDE1
JRDNSLIDE: EQU $-JRSTARTS
JP DODNSLIDE1
JRPORTAMENTO: EQU $-JRSTARTS
JP DOPORTAMENTO1
JRREPORTAM: EQU $-JRSTARTS
JP DOREPORTAM1
JRVIBRATO: EQU $-JRSTARTS
JP DOVIBRATO1
JRTREMOLO: EQU $-JRSTARTS
JP DOTREMOLO1
JRDELAYNOTE: EQU $-JRSTARTS
JP DODELAYNOTE1
JRCUTCHANNEL: EQU $-JRSTARTS
JP DOCUTCHANNEL1
DEFS 18
JRNONOTE1: EQU $-JRSTARTS
JP AFTERCHANGES1
JRNONOTE2: EQU $-JRSTARTS
JP AFTERCHANGES2
JRNONOTE3: EQU $-JRSTARTS
JP AFTERCHANGES3
JRNONOTE4: EQU $-JRSTARTS
JP AFTERCHANGES4
JRNONOTE5: EQU $-JRSTARTS
JP AFTERCHANGES5
JRNONOTEROW: EQU $-JRSTARTS
JP AFTERCHANGES6
JRLOWENVELOPE: EQU $-JRSTARTS
JP DOENVELOPE1
JRHIGHENVELOPE:EQU $-JRSTARTS
JP DOENVELOPE2
JRNEWTEMPO: EQU $-JRSTARTS
JP DONEWTEMPO
JRPATTDELAY: EQU $-JRSTARTS
JP DOPATTDELAY
JRJUMPLOOP: EQU $-JRSTARTS
JP DOJUMPLOOP
JRPATTBREAK: EQU $-JRSTARTS
JP DOPATTBREAK
JRNEWSONGPOS: EQU $-JRSTARTS
JP DONEWSONGPOS
DONEWTEMPO: INC HL
LD A,(HL)
LD (TEMPO),A
INC HL
JR NEXTCOMMAND1
DOPATTDELAY: INC HL
LD A,(HL)
LD (PATTDELAY),A
INC HL
JP NEXTCOMMAND1
DOJUMPLOOP:
INC HL
REPEATNUM: EQU $+1
LD A,00
OR A
JR Z,NEWREPEAT
DEC A
LD (REPEATNUM),A
JR Z,DONEREPEAT
REPEATADDR: EQU $+1
LD DE,0000
LD (NEXTPLAYADDR),DE
LD A,AFTERSETADDR-SETADDR
LD (SKIPSETADDR),A
DONEREPEAT: INC HL
INC HL
INC HL
JP NEXTCOMMAND1
NEWREPEAT:
LD A,(HL)
LD (REPEATNUM),A
INC HL
LD E,(HL)
INC HL
LD D,(HL)
INC HL
LD (REPEATADDR),DE
LD (NEXTPLAYADDR),DE
LD A,AFTERSETADDR-SETADDR
LD (SKIPSETADDR),A
JP NEXTCOMMAND1
DONEWSONGPOS:
LD A,(SKIPSETADDR)
OR A
JR Z,YESSONGPOS
INC HL
INC HL
INC HL
JP NEXTCOMMAND1
YESSONGPOS: INC HL
LD E,(HL)
INC HL
LD D,(HL)
INC HL
LD A,(DE)
JR NOLOOPSONG
DOPATTBREAK:
INC HL
LD A,(SKIPSETADDR)
OR A
JP NZ,NEXTCOMMAND1
NEXTSONGPOS: EQU $+1
LD DE,0000
LD A,(DE)
OR A
JR NZ,NOLOOPSONG
INC DE
LD A,(DE)
DEC DE
OR A
LD A,(DE)
JR NZ,NOLOOPSONG
;BEGINSONG: EQU $+1
; LD DE,32768
; In 1.01 changed to:
LD DE,(RESETPLAYER+1)
LD A,(DE)
NOLOOPSONG: LD (NEXTPLAYADDR),A
INC DE
LD A,(DE)
LD (NEXTPLAYADDR+1),A
INC DE
LD (NEXTSONGPOS),DE
LD A,AFTERSETADDR-SETADDR
LD (SKIPSETADDR),A
JP NEXTCOMMAND1
DOENVELOPE1: INC HL
LD A,(HL)
LD (SOUNDTABLE+18),A
INC HL
JP NEXTCOMMAND1
DOENVELOPE2: INC HL
LD A,(HL)
LD (SOUNDTABLE+19),A
INC HL
JP NEXTCOMMAND1
DOCUTNOTE1:
INC HL
LD A,(HL)
INC HL
LD (CUTAFTERT1),A
LD DE,AFTERCOMMAND1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DONOCOMMAND1: INC HL
LD DE,AFTERCOMMAND1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DOSETVOLUME1: INC HL
LD A,(HL)
LD (SUBVOLUMEL1),A
INC HL
LD A,(HL)
LD (SUBVOLUMER1),A
INC HL
LD DE,JPSETVOLUME1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DOSETCHORD1: INC HL
LD A,(HL)
LD E,A
AND 240
LD (OSCHORD1_1),A
LD A,E
AND 15
LD (OCTCHORD1_1),A
INC HL
LD A,(HL)
LD E,A
AND 240
LD (OSCHORD1_2),A
LD A,E
AND 15
LD (OCTCHORD1_2),A
LD DE,JPCHORD1_0
LD (JPCOMMAND1),DE
INC HL
JP NEXTCOMMAND1
DOUPSLIDE1: INC HL
LD A,(HL)
LD (UPSPEED1),A
LD A,7
LD (UPOCTTARGET1),A
LD A,255
LD (UPTONETARGET1),A
LD DE,JPUPSLIDE1
LD (JPCOMMAND1),DE
INC HL
JP NEXTCOMMAND1
DODNSLIDE1: INC HL
LD A,(HL)
LD (DNSPEED1),A
XOR A
LD (DNOCTTARGET1),A
LD (DNTONETARGET1),A
LD DE,JPDNSLIDE1
LD (JPCOMMAND1),DE
INC HL
JP NEXTCOMMAND1
DOPORTAMENTO1: INC HL
LD A,(HL)
LD (NOTENUMBER1),A
LD E,A
LD D,SEMITONETABLE/256
LD A,(DE)
LD E,A
INC HL
LD A,(HL)
INC HL
LD D,A
LD A,(BASEOCT1)
CP D
JR C,PORTAMUP1
JR NZ,PORTAMDN1
LD A,(BASETONE1)
CP E
JR C,PORTAMUP1
PORTAMDN1: LD A,(HL)
INC HL
LD (DNSPEED1),A
LD A,D
LD (DNOCTTARGET1),A
LD A,E
LD (DNTONETARGET1),A
LD DE,JPDNSLIDE1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
PORTAMUP1: LD A,(HL)
INC HL
LD (UPSPEED1),A
LD A,D
LD (UPOCTTARGET1),A
LD A,E
LD (UPTONETARGET1),A
LD DE,JPUPSLIDE1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DOREPORTAM1: INC HL
LD A,(HL)
INC HL
LD (UPSPEED1),A
LD (DNSPEED1),A
JP NEXTCOMMAND1
DOVIBRATO1: INC HL
LD E,(HL)
INC HL
LD A,(HL)
INC HL
ADD VIBRATABLE/256
LD D,A
LD (VIBRATABLE1),DE
LD A,(HL)
INC HL
LD (VIBRASPEED1),A
LD DE,JPVIBRATO1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DOTREMOLO1: INC HL
LD E,(HL)
INC HL
LD A,(HL)
INC HL
ADD VIBRATABLE/256
LD D,A
LD (TREMOLOTABLE1),DE
LD A,(HL)
INC HL
LD (TREMOLOSPEED1),A
LD DE,JPTREMOLO1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DOCUTCHANNEL1:
INC HL
XOR A
LD (DELAYFLAG1),A
INC A
LD (DELAY1),A
LD DE,AFTERCOMMAND1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DODELAYNOTE1:
INC HL
LD A,(HL)
INC HL
LD (DELAY1),A
LD A,1
LD (DELAYFLAG1),A
LD DE,AFTERCOMMAND1
LD (JPCOMMAND1),DE
JP NEXTCOMMAND1
DONOORN1:
XOR A
LD (ORNLEN1),A
JP DONOTE1
DONOORNINS1: XOR A
LD (ORNLEN1),A
JP DONEWINST1
DONEWORN1:
INC HL
LD E,(HL)
INC HL
LD D,(HL)
LD A,(DE)
LD (ORNLEN1),A
INC DE
LD A,(DE)
LD (ORNREPLEN1),A
INC DE
LD A,(DE)
LD (ORNREPADDR1),A
INC DE
LD A,(DE)
LD (ORNREPADDR1+1),A
INC DE
LD (ORNADDR1),DE
JP DONOTE1
DONEWBOTH1:
INC HL
LD E,(HL)
INC HL
LD D,(HL)
LD A,(DE)
LD (ORNLEN1),A
INC DE
LD A,(DE)
LD (ORNREPLEN1),A
INC DE
LD A,(DE)
LD (ORNREPADDR1),A
INC DE
LD A,(DE)
LD (ORNREPADDR1+1),A
INC DE
LD (ORNADDR1),DE
DONEWINST1:
INC HL
LD E,(HL)
INC HL
LD D,(HL)
LD A,(DE)
LD (INSTLEN1),A
INC DE
LD A,(DE)
LD (REPLEN1),A
INC DE
LD A,(DE)
LD (REPADDR1),A
INC DE
LD A,(DE)
LD (REPADDR1+1),A
INC DE
LD (INSTADDR1),DE
DONOTE1:
INC HL
LD A,(HL)
LD (NOTENUMBER1),A
LD E,A
LD D,SEMITONETABLE/256
LD A,(DE)
LD (BASETONE1),A
INC HL
LD A,(HL)
LD (BASEOCT1),A
INSTLEN1: EQU $+1
LD A,00
LD (PLAYLEN1),A
INSTADDR1: EQU $+1
LD DE,0000
LD (PLAYADDR1),DE
ORNLEN1: EQU $+1
LD A,00
LD (ORNPLAYLEN1),A
ORNADDR1: EQU $+1
LD DE,0000
LD (ORNPLAYADDR1),DE
AFTERCHANGES1:
INC HL
NEXTCOMMAND2: LD A,(HL)
LD (JRCOMMAND2),A
JRCOMMAND2: EQU $+1
JR $
JP DONOTE2
JP DONEWINST2
JP DONEWORN2
JP DONEWBOTH2
JP DONOORN2
JP DONOORNINS2
JP DONOCOMMAND2
JP DOSETVOLUME2
JP DOCUTNOTE2
JP DOSETCHORD2
JP DOUPSLIDE2
JP DODNSLIDE2
JP DOPORTAMENTO2
JP DOREPORTAM2
JP DOVIBRATO2
JP DOTREMOLO2
JP DODELAYNOTE2
JP DOCUTCHANNEL2
DEFS 18
JP AFTERCHANGES2
JP AFTERCHANGES3
JP AFTERCHANGES4
JP AFTERCHANGES5
JP AFTERCHANGES6
DOCUTNOTE2:
INC HL
LD A,(HL)
INC HL
LD (CUTAFTERT2),A
LD DE,AFTERCOMMAND2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DONOCOMMAND2: INC HL
LD DE,AFTERCOMMAND2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DOSETVOLUME2: INC HL
LD A,(HL)
LD (SUBVOLUMEL2),A
INC HL
LD A,(HL)
LD (SUBVOLUMER2),A
INC HL
LD DE,JPSETVOLUME2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DOSETCHORD2: INC HL
LD A,(HL)
LD E,A
AND 240
LD (OSCHORD2_1),A
LD A,E
AND 15
LD (OCTCHORD2_1),A
INC HL
LD A,(HL)
LD E,A
AND 240
LD (OSCHORD2_2),A
LD A,E
AND 15
LD (OCTCHORD2_2),A
LD DE,JPCHORD2_0
LD (JPCOMMAND2),DE
INC HL
JP NEXTCOMMAND2
DOUPSLIDE2: INC HL
LD A,(HL)
LD (UPSPEED2),A
LD A,7
LD (UPOCTTARGET2),A
LD A,255
LD (UPTONETARGET2),A
LD DE,JPUPSLIDE2
LD (JPCOMMAND2),DE
INC HL
JP NEXTCOMMAND2
DODNSLIDE2: INC HL
LD A,(HL)
LD (DNSPEED2),A
XOR A
LD (DNOCTTARGET2),A
LD (DNTONETARGET2),A
LD DE,JPDNSLIDE2
LD (JPCOMMAND2),DE
INC HL
JP NEXTCOMMAND2
DOPORTAMENTO2: INC HL
LD A,(HL)
LD (NOTENUMBER2),A
LD E,A
LD D,SEMITONETABLE/256
LD A,(DE)
LD E,A
INC HL
LD A,(HL)
INC HL
LD D,A
LD A,(BASEOCT2)
CP D
JR C,PORTAMUP2
JR NZ,PORTAMDN2
LD A,(BASETONE2)
CP E
JR C,PORTAMUP2
PORTAMDN2: LD A,(HL)
INC HL
LD (DNSPEED2),A
LD A,D
LD (DNOCTTARGET2),A
LD A,E
LD (DNTONETARGET2),A
LD DE,JPDNSLIDE2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
PORTAMUP2: LD A,(HL)
INC HL
LD (UPSPEED2),A
LD A,D
LD (UPOCTTARGET2),A
LD A,E
LD (UPTONETARGET2),A
LD DE,JPUPSLIDE2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DOREPORTAM2: INC HL
LD A,(HL)
INC HL
LD (UPSPEED2),A
LD (DNSPEED2),A
JP NEXTCOMMAND2
DOVIBRATO2: INC HL
LD E,(HL)
INC HL
LD A,(HL)
INC HL
ADD VIBRATABLE/256
LD D,A
LD (VIBRATABLE2),DE
LD A,(HL)
INC HL
LD (VIBRASPEED2),A
LD DE,JPVIBRATO2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DOTREMOLO2: INC HL
LD E,(HL)
INC HL
LD A,(HL)
INC HL
ADD VIBRATABLE/256
LD D,A
LD (TREMOLOTABLE2),DE
LD A,(HL)
INC HL
LD (TREMOLOSPEED2),A
LD DE,JPTREMOLO2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DOCUTCHANNEL2:
INC HL
XOR A
LD (DELAYFLAG2),A
INC A
LD (DELAY2),A
LD DE,AFTERCOMMAND2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DODELAYNOTE2:
INC HL
LD A,(HL)
INC HL
LD (DELAY2),A
LD A,1
LD (DELAYFLAG2),A
LD DE,AFTERCOMMAND2
LD (JPCOMMAND2),DE
JP NEXTCOMMAND2
DONOORN2:
XOR A
LD (ORNLEN2),A
JP DONOTE2
DONOORNINS2: XOR A
LD (ORNLEN2),A
JP DONEWINST2
DONEWORN2:
INC HL
LD E,(HL)
INC HL
LD D,(HL)
LD A,(DE)
LD (ORNLEN2),A
INC DE
LD A,(DE)
LD (ORNREPLEN2),A
INC DE
LD A,(DE)
LD (ORNREPADDR2),A
INC DE
LD A,(DE)
LD (ORNREPADDR2+1),A
INC DE
LD (ORNADDR2),DE
JP DONOTE2
DONEWBOTH2:
INC HL
LD E,(HL)
INC HL
LD D,(HL)
LD A,(DE)
LD (ORNLEN2),A
INC DE
LD A,(DE)
LD (ORNREPLEN2),A
INC DE
LD A,(DE)
LD (ORNREPADDR2),A
INC DE
LD A,(DE)
LD (ORNREPADDR2+1),A
INC DE
LD (ORNADDR2),DE
DONEWINST2:
INC HL
LD E,(HL)
INC HL
LD D,(HL)
LD A,(DE)
LD (INSTLEN2),A
INC DE
LD A,(DE)
LD (REPLEN2),A
INC DE
LD A,(DE)
LD (REPADDR2),A
INC DE
LD A,(DE)
LD (REPADDR2+1),A
INC DE
LD (INSTADDR2),DE
DONOTE2: