6c2ef8d2dd
incomplete vibrato/pitch implementation incomplete porta implementation prepare for arp impl
1123 lines
18 KiB
ArmAsm
1123 lines
18 KiB
ArmAsm
; Furnace Command Stream player for 6502 architecture
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; written by tildearrow
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; usage:
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; define the following constants:
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; - FCS_MAX_CHAN: the number of channels in your stream
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; - fcsAddrBase: player state address base
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; - fcsZeroPage: player state address base for zero-page-mandatory variables
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; - fcsGlobalStack: player stack (best placed in a page)
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; - fcsPtr: pointer to command stream
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; - fcsVolMax: pointer to max channel volume array
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; - fcsCmdTableLow: low address of command table
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; - fcsCmdTableHigh: high address of command table
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; - see stream_example.i for an example
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; call fcsInit - this sets A to 0 on success or 1 on failure
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; call fcsTick on every frame/tick/whatever
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; - call your dispatch implementation's tick function afterwards
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; notes:
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; - short pointers only
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; - little-endian only!
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; calculated from player constants
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fcsDelays=fcsPtr+8
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fcsSpeedDial=fcsPtr+24
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fcsStackSize=fcsPtr+40+(FCS_MAX_CHAN*2)
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; variables
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; these may be read by your command handling routines
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fcsArg0=fcsAddrBase ; int
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fcsArg1=fcsAddrBase+4 ; int
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; something else
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fcsTicks=fcsAddrBase+8 ; short
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; temporary variables
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fcsSendVolume=fcsAddrBase+10 ; char
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fcsSendPitch=fcsAddrBase+11 ; char
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fcsArpSpeed=fcsAddrBase+12 ; char
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fcsCmd=fcsAddrBase+16 ; char[8]
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fcsTempPtr=fcsZeroPage ; short
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; channel state
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chanPC=fcsZeroPage+2 ; short
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chanTicks=fcsAddrBase+24 ; short
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chanStackPtr=fcsAddrBase+24+(FCS_MAX_CHAN*2) ; char
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chanNote=fcsAddrBase+24+(FCS_MAX_CHAN*2)+1 ; char
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chanVibratoPos=fcsAddrBase+24+(FCS_MAX_CHAN*4) ; char
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chanVibrato=fcsAddrBase+24+(FCS_MAX_CHAN*4)+1 ; char
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chanPitch=fcsAddrBase+24+(FCS_MAX_CHAN*6) ; char
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chanArp=fcsAddrBase+24+(FCS_MAX_CHAN*6)+1 ; char
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chanPortaSpeed=fcsAddrBase+24+(FCS_MAX_CHAN*8) ; char
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chanPortaTarget=fcsAddrBase+24+(FCS_MAX_CHAN*8)+1 ; char
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chanVol=fcsAddrBase+24+(FCS_MAX_CHAN*10) ; short
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chanVolSpeed=fcsAddrBase+24+(FCS_MAX_CHAN*12) ; short
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chanPan=fcsAddrBase+24+(FCS_MAX_CHAN*14) ; short
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chanArpStage=fcsAddrBase+24+(FCS_MAX_CHAN*16) ; char
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chanArpTicks=fcsAddrBase+24+(FCS_MAX_CHAN*16)+1 ; char
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; may be used for driver detection
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fcsDriverInfo:
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.db "Furnace"
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.db 0
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; x: channel*2
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; a is set to next byte
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.MACRO fcsReadNext
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; a=chanPC[x]
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lda (chanPC,x)
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; increase PC
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inc chanPC,x
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bne +
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inc chanPC+1,x
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+
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.ENDM
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; note on null
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fcsNoteOnNull:
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lda #0
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sta chanVibratoPos,x
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ldy #$00
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jsr fcsDispatchCmd
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rts
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; note off, note off env, env release
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fcsNoArgDispatchB4:
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tya
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sec
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sbc #$b4
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tay
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jsr fcsDispatchCmd
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rts
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fcsOneByteDispatchB4:
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tya
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pha
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fcsReadNext
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sta fcsArg0
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pla
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sec
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sbc #$b4
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tay
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jsr fcsDispatchCmd
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rts
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; dispatch subroutines for full commands
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fcsNoArgDispatch:
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jsr fcsDispatchCmd
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rts
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fcsOneByteDispatch:
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tya
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pha
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fcsReadNext
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sta fcsArg0
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pla
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tay
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jsr fcsDispatchCmd
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rts
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fcsTwoByteDispatch:
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tya
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pha
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fcsReadNext
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sta fcsArg0
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fcsReadNext
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sta fcsArg1
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pla
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tay
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jsr fcsDispatchCmd
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rts
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fcsOneShortDispatch:
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tya
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pha
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fcsReadNext
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sta fcsArg0
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fcsReadNext
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sta fcsArg0+1
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pla
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tay
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jsr fcsDispatchCmd
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rts
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fcsTwoShortDispatch:
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tya
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pha
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fcsReadNext
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sta fcsArg0
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fcsReadNext
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sta fcsArg0+1
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fcsReadNext
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sta fcsArg1
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fcsReadNext
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sta fcsArg1+1
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pla
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tay
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jsr fcsDispatchCmd
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rts
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fcsPrePorta:
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fcsReadNext
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pha
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and #$80
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sta fcsArg0
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pla
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and #$40
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sta fcsArg1
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ldy #$0c
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jsr fcsDispatchCmd
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rts
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fcsArpTime:
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fcsReadNext
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sta fcsArpSpeed
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rts
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fcsVibrato:
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fcsReadNext
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sta chanVibrato,x
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rts
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; TODO
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fcsVibRange:
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fcsVibShape:
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fcsReadNext
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rts
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fcsPitch:
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fcsReadNext
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sta chanPitch,x
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lda #1
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sta fcsSendPitch
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rts
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fcsArpeggio:
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fcsReadNext
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sta chanArp,x
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rts
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fcsVolume:
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fcsReadNext
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sta chanVol+1,x
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lda #0
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sta chanVol,x
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lda #1
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sta fcsSendVolume
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rts
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fcsVolSlide:
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fcsReadNext
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sta chanVolSpeed,x
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fcsReadNext
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sta chanVolSpeed+1,x
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rts
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fcsPorta:
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fcsReadNext
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sta chanPortaTarget,x
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fcsReadNext
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sta chanPortaSpeed,x
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rts
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fcsLegato:
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fcsReadNext
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sta chanNote,x
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sta fcsArg0
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ldy #11
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jsr fcsDispatchCmd
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rts
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fcsVolSlideTarget:
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fcsReadNext
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sta chanVolSpeed,x
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fcsReadNext
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sta chanVolSpeed+1,x
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; TODO: we don't support this yet...
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fcsReadNext
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fcsReadNext
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rts
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fcsNoOpOneByte:
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fcsReadNext
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rts
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fcsPan:
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fcsReadNext
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sta chanPan,x
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sta fcsArg0
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fcsReadNext
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sta chanPan+1,x
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sta fcsArg1
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ldy #10
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jsr fcsDispatchCmd
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rts
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fcsOptPlaceholder:
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fcsReadNext
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fcsReadNext
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fcsReadNext
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rts
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fcsCallI:
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; get address and relocate it
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fcsReadNext
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clc
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adc #<fcsPtr
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pha
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fcsReadNext
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adc #>fcsPtr
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pha
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; ignore next two bytes
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jsr fcsIgnoreNext
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jsr fcsIgnoreNext
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jsr fcsPushCall
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pla
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sta chanPC+1,x
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pla
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sta chanPC,x
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rts
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fcsOffWait:
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ldy #0
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sty chanTicks+1,x
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iny
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sty chanTicks,x
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jsr fcsDispatchCmd
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rts
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fcsFullCmd:
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; read command
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fcsReadNext
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tay
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lda fcsFullCmdTable-28,y
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tay
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lda fcsCmdReadTableLow,y
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sta fcsTempPtr
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lda fcsCmdReadTableHigh,y
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sta fcsTempPtr+1
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jmp (fcsTempPtr)
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fcsSpeedDialCmd:
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lda fcsSpeedDial-224,y
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pha
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tay
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lda fcsFullCmdTable-28,y
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tay
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lda fcsCmdReadTableLow,y
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sta fcsTempPtr
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lda fcsCmdReadTableHigh,y
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sta fcsTempPtr+1
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pla
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tay
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jmp (fcsTempPtr)
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fcsCall:
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; get address and relocate it
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fcsReadNext
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clc
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adc #<fcsPtr
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pha
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fcsReadNext
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adc #>fcsPtr
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pha
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jsr fcsPushCall
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pla
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sta chanPC+1,x
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pla
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sta chanPC,x
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rts
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; push channel PC to stack
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fcsPushCall:
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lda chanStackPtr,x
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tay
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lda chanPC,x
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sta fcsGlobalStack,y
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iny
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lda chanPC+1,x
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sta fcsGlobalStack,y
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iny
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tya
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sta chanStackPtr,x
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rts
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; retrieve channel PC from stack
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fcsRet:
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lda chanStackPtr,x
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tay
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dey
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lda fcsGlobalStack,y
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sta chanPC+1,x
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dey
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lda fcsGlobalStack,y
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sta chanPC,x
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tya
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sta chanStackPtr,x
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rts
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fcsJump:
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; get address and relocate it
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fcsReadNext
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clc
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adc #<fcsPtr
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pha
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fcsReadNext
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adc #>fcsPtr
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pha
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; ignore next two bytes
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jsr fcsIgnoreNext
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jsr fcsIgnoreNext
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pla
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sta chanPC+1,x
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pla
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sta chanPC,x
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rts
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; TODO
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fcsTickRate:
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rts
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fcsWaitS:
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fcsReadNext
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sta chanTicks,x
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fcsReadNext
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sta chanTicks+1,x
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rts
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fcsWaitC:
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fcsReadNext
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sta chanTicks,x
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lda #0
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sta chanTicks+1,x
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rts
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fcsWait1:
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ldy #1
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sty chanTicks,x
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dey
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sty chanTicks+1,x
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rts
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fcsStop:
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lda #0
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sta chanPC,x
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sta chanPC+1,x
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rts
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fcsNoOp:
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rts
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; x: channel*2
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; y: command
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fcsDispatchCmd:
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; read command call table
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lda fcsCmdTableLow,y
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sta fcsTempPtr
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lda fcsCmdTableHigh,y
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sta fcsTempPtr+1
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; check for zero
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lda fcsTempPtr
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ora fcsTempPtr
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beq + ; get out
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; handle command in dispatch code
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jmp (fcsTempPtr)
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; only if pointer is zero
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+ rts
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; x: channel*2
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fcsIgnoreNext:
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; increase PC
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inc chanPC,x
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bne +
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inc chanPC+1,x
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+ rts
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; x: channel*2 (for speed... char variables are interleaved)
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; read commands
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fcsChannelCmd:
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; read next byte
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fcsReadNext
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and #$ff ; touch flags
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; process and read arguments
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; if (a<0xb3)
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bpl fcsNote ; handle $00-$7f
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cmp #$b4
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bpl fcsCheckOther
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; this is a note
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fcsNote:
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sta fcsArg0
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sta chanNote,x
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lda #0
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tay
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sta chanVibratoPos,x
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; call DIV_CMD_NOTE_ON
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jsr fcsDispatchCmd
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rts
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; check other instructions
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fcsCheckOther:
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; check for preset delays
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cmp #$f0
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bmi fcsOther
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; handler for preset delays
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fcsPresetDelay:
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; load preset delay and store it
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tay
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lda fcsPtr+8-240,y
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sta chanTicks,x
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lda #0
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sta chanTicks+1,x
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rts
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; other instructions
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fcsOther:
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; call respective handler
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tay
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lda fcsInsTableLow-180,y
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sta fcsTempPtr
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lda fcsInsTableHigh-180,y
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sta fcsTempPtr+1
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jmp (fcsTempPtr)
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; this is called when vibrato depth is zero
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fcsChanPitchShortcut:
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; extend pitch sign
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lda chanPitch,x
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sta fcsArg0
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bmi +
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lda #0
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sta fcsArg0+1
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beq ++
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+ lda #$ff
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sta fcsArg0+1
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++
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; dispatch command
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ldy #9
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jsr fcsDispatchCmd
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; end
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jmp fcsChanDoPorta
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; x: channel*2
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; stuff that goes after command reading
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fcsChannelPost:
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rts
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;;; DO VOLUME
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fcsChanDoVolume:
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; if (sendVolume || chanVolSpeed[x]!=0)
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lda fcsSendVolume
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bne +
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lda chanVolSpeed,x
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ora chanVolSpeed+1,x
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beq fcsChanDoPitch
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; increase volume
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+ lda chanVol,x
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clc
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adc chanVolSpeed,x
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sta chanVol,x
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lda chanVol+1,x
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adc chanVolSpeed+1,x
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sta chanVol+1,x
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; TODO: handle vol slide with target
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; get sign of volume speed
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lda chanVolSpeed+1,x
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bpl fcsChanPlus
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fcsChanMinus:
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; if (chanVol[x]<0)
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bcs fcsChanSubmitVol
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; chanVol[x]=0
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lda #0
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sta chanVol,x
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sta chanVol+1,x
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beq fcsChanSubmitVol ; shortcut
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fcsChanPlus:
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; if (chanVol[x]>=fcsVolMax[x] || CARRY)
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bcs + ; overflow check
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lda chanVol+1,x ; comparison check
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cmp fcsVolMax.w,x
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bmi fcsChanSubmitVol
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; chanVol[x]=fcsVolMax[x]
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+ lda fcsVolMax.w,x
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sta chanVol+1,x
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lda #0
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sta chanVol,x
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fcsChanSubmitVol:
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lda chanVol+1,x
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sta fcsArg0
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ldy #$05 ; volume
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jsr fcsDispatchCmd
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;;; DO PITCH
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fcsChanDoPitch:
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; if (sendPitch || chanVibrato[x]!=0)
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lda fcsSendPitch
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bne +
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lda chanVibrato,x
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and #$0f ; depth only
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beq fcsChanDoPorta
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; update vibrato
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; get vibrato
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+ lda chanVibrato,x
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lsr
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lsr
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lsr
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lsr
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clc
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adc chanVibratoPos,x
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and #$3f
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sta chanVibratoPos,x
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; calculate vibrato pitch (TODO)
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; 1. calculate vibrato position
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; - we use 15 quarter sine tables, one for each vibrato depth
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; - 32-63 are negatives of 0-31
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; - a&31: zero is zero. otherwise a-1 in the table unless a&16
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; - if a&16 then invert a
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tay
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; check for zero in a&31
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and #$1f
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bne +
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; it is. load zero
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lda #0
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jmp fcsPostVibratoCalc1
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; it is not. check a&16
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+ and #$10
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bne +
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; 0-15
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dey
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tya
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and #$0f
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jmp fcsPostVibratoCalc
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; 16-31
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+ tya
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and #$0f
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eor #$0f ; 0-15 -> 15-0
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fcsPostVibratoCalc:
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; check for 32-63
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pha
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tya
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and #$20
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bne +
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; 0-31
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pla
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tay
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lda (fcsTempPtr),y
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jmp fcsPostVibratoCalc1
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; 32-63 (negate)
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+ pla
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tay
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lda (fcsTempPtr),y
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eor #$ff
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clc
|
|
adc #1
|
|
|
|
; at this point, a contains the vibrato pitch
|
|
fcsPostVibratoCalc1:
|
|
sta fcsArg0
|
|
; extend sign
|
|
bmi +
|
|
lda #0
|
|
sta fcsArg0+1
|
|
beq ++
|
|
+ lda #$ff
|
|
sta fcsArg0+1
|
|
; extend pitch sign
|
|
++ lda chanPitch,x
|
|
sta fcsTempPtr
|
|
bmi +
|
|
lda #0
|
|
sta fcsTempPtr+1
|
|
beq ++
|
|
+ lda #$ff
|
|
sta fcsTempPtr+1
|
|
; add pitch
|
|
++ lda fcsArg0
|
|
clc
|
|
adc fcsTempPtr
|
|
sta fcsArg0
|
|
lda fcsArg0+1
|
|
adc fcsTempPtr+1
|
|
sta fcsArg0+1
|
|
; dispatch command
|
|
ldy #9
|
|
jsr fcsDispatchCmd
|
|
|
|
;;; DO PORTAMENTO
|
|
fcsChanDoPorta:
|
|
; if (chanPortaSpeed[x])
|
|
lda chanPortaSpeed,x
|
|
beq fcsChanDoArp
|
|
; do portamento
|
|
sta fcsArg0
|
|
lda #0
|
|
sta fcsArg0+1
|
|
lda chanPortaTarget,x
|
|
sta fcsArg1
|
|
ldy #8 ; NOTE_PORTA
|
|
jsr fcsDispatchCmd
|
|
; get out (we can't do porta and arp simultaneously)
|
|
rts
|
|
|
|
;;; DO ARPEGGIO
|
|
fcsChanDoArp:
|
|
; if (chanArp[x] && !chanPortaSpeed[x])
|
|
lda chanArp,x
|
|
beq +
|
|
; do arpeggio (TODO)
|
|
nop
|
|
|
|
;;; END
|
|
+ rts
|
|
|
|
; x: channel*2
|
|
fcsDoChannel:
|
|
; initialize
|
|
lda #0
|
|
sta fcsSendVolume
|
|
sta fcsSendPitch
|
|
|
|
; begin processing
|
|
; chanTicks--
|
|
+ lda chanTicks,x
|
|
sec
|
|
sbc #1
|
|
sta chanTicks,x
|
|
bne + ; skip if our counter isn't zero
|
|
|
|
; ticks lower is zero; check upper byte
|
|
ldy chanTicks+1,x
|
|
beq fcsDoChannelLoop ; go to read commands if it's zero as well
|
|
; decrease ticks upper
|
|
dey
|
|
sty chanTicks+1,x
|
|
; process channel stuff
|
|
jsr fcsChannelPost
|
|
rts
|
|
|
|
; ticks is zero... read commands until chanTicks is set
|
|
fcsDoChannelLoop:
|
|
lda chanTicks,x
|
|
ora chanTicks+1,x
|
|
bne + ; get out if chanTicks is no longer zero
|
|
jsr fcsChannelCmd ; read next command
|
|
jmp fcsDoChannelLoop
|
|
|
|
+ jsr fcsChannelPost
|
|
; end
|
|
rts
|
|
|
|
fcsTick:
|
|
; update channel state
|
|
; for (x=0; x<FCS_MAX_CHAN; x++)
|
|
ldx #0
|
|
- jsr fcsDoChannel
|
|
inx
|
|
inx
|
|
cpx #FCS_MAX_CHAN*2
|
|
bne -
|
|
|
|
; increase tick counter
|
|
inc fcsTicks
|
|
bne +
|
|
inc fcsTicks+1
|
|
|
|
; end
|
|
+ rts
|
|
|
|
fcsInit:
|
|
; set all tick counters to 1
|
|
lda #1
|
|
ldy #0
|
|
ldx #(FCS_MAX_CHAN*2)
|
|
- dex
|
|
sty chanTicks,x
|
|
dex
|
|
sta chanTicks,x
|
|
bne -
|
|
|
|
; set channel program counters
|
|
ldx #(FCS_MAX_CHAN*2)
|
|
- dex
|
|
lda fcsPtr+40.w,x
|
|
sta chanPC,x
|
|
cpx #0
|
|
bne -
|
|
|
|
; relocate program counters
|
|
ldx #0
|
|
- clc
|
|
lda chanPC,x
|
|
adc #<fcsPtr
|
|
sta chanPC,x
|
|
inx
|
|
lda chanPC,x
|
|
adc #>fcsPtr
|
|
sta chanPC,x
|
|
inx
|
|
cpx #(FCS_MAX_CHAN*2)
|
|
bne -
|
|
|
|
; initialize channel stacks
|
|
lda #0
|
|
ldx #0
|
|
ldy #0
|
|
- sta chanStackPtr,x
|
|
clc
|
|
adc fcsStackSize.w,y
|
|
clc
|
|
adc fcsStackSize.w,y
|
|
inx
|
|
inx
|
|
iny
|
|
cpx #(FCS_MAX_CHAN*2)
|
|
bne -
|
|
|
|
; set volumes
|
|
; TODO
|
|
|
|
; success
|
|
lda #0
|
|
rts
|
|
|
|
; floor(127*sin((x/64)*(2*pi)))
|
|
fcsVibTable:
|
|
.db 12, 24, 36, 48, 59, 70, 80, 89, 98, 105, 112, 117, 121, 124, 126, 127
|
|
|
|
; COMMAND TABLE
|
|
; $b4 fcsNoArgDispatch,
|
|
; $b5 fcsNoArgDispatch,
|
|
; $b6 fcsNoArgDispatch,
|
|
; $b7 fcsNoArgDispatch,
|
|
; $b8 fcsOneByteDispatch,
|
|
; $b9 fcsNoOp,
|
|
; $ba fcsNoOp,
|
|
; $bb fcsNoOp,
|
|
; $bc fcsNoOp,
|
|
; $bd fcsNoOp,
|
|
; $be fcsNoOp,
|
|
; $bf fcsNoOp,
|
|
; $c0 fcsPrePorta,
|
|
; $c1 fcsArpTime,
|
|
; $c2 fcsVibrato,
|
|
; $c3 fcsVibRange,
|
|
; $c4 fcsVibShape,
|
|
; $c5 fcsPitch,
|
|
; $c6 fcsArpeggio,
|
|
; $c7 fcsVolume,
|
|
; $c8 fcsVolSlide,
|
|
; $c9 fcsPorta,
|
|
; $ca fcsLegato,
|
|
; $cb fcsVolSlideTarget,
|
|
; $cc fcsNoOpOneByte,
|
|
; $cd fcsNoOpOneByte,
|
|
; $ce fcsNoOpOneByte,
|
|
; $cf fcsPan,
|
|
; $d0 fcsOptPlaceholder,
|
|
; $d1 fcsNoOp,
|
|
; $d2 fcsNoOp,
|
|
; $d3 fcsNoOp,
|
|
; $d4 fcsNoOp,
|
|
; $d5 fcsCallI,
|
|
; $d6 fcsOffWait,
|
|
; $d7 fcsFullCmd,
|
|
; $d8 fcsCall,
|
|
; $d9 fcsRet,
|
|
; $da fcsJump,
|
|
; $db fcsTickRate,
|
|
; $dc fcsWaitS,
|
|
; $dd fcsWaitC,
|
|
; $de fcsWait1,
|
|
; $df fcsStop,
|
|
fcsInsTableHigh:
|
|
.db >fcsNoArgDispatchB4, >fcsNoArgDispatchB4, >fcsNoArgDispatchB4, >fcsNoArgDispatchB4, >fcsOneByteDispatchB4, >fcsNoOp, >fcsNoOp, >fcsNoOp, >fcsNoOp, >fcsNoOp, >fcsNoOp, >fcsNoOp
|
|
.db >fcsPrePorta, >fcsArpTime, >fcsVibrato, >fcsVibRange, >fcsVibShape, >fcsPitch, >fcsArpeggio, >fcsVolume, >fcsVolSlide, >fcsPorta, >fcsLegato, >fcsVolSlideTarget, >fcsNoOpOneByte, >fcsNoOpOneByte, >fcsNoOpOneByte, >fcsPan
|
|
.db >fcsOptPlaceholder, >fcsNoOp, >fcsNoOp, >fcsNoOp, >fcsNoOp, >fcsCallI, >fcsOffWait, >fcsFullCmd, >fcsCall, >fcsRet, >fcsJump, >fcsTickRate, >fcsWaitS, >fcsWaitC, >fcsWait1, >fcsStop
|
|
.db >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd, >fcsSpeedDialCmd
|
|
|
|
fcsInsTableLow:
|
|
.db <fcsNoArgDispatchB4, <fcsNoArgDispatchB4, <fcsNoArgDispatchB4, <fcsNoArgDispatchB4, <fcsOneByteDispatchB4, <fcsNoOp, <fcsNoOp, <fcsNoOp, <fcsNoOp, <fcsNoOp, <fcsNoOp, <fcsNoOp
|
|
.db <fcsPrePorta, <fcsArpTime, <fcsVibrato, <fcsVibRange, <fcsVibShape, <fcsPitch, <fcsArpeggio, <fcsVolume, <fcsVolSlide, <fcsPorta, <fcsLegato, <fcsVolSlideTarget, <fcsNoOpOneByte, <fcsNoOpOneByte, <fcsNoOpOneByte, <fcsPan
|
|
.db <fcsOptPlaceholder, <fcsNoOp, <fcsNoOp, <fcsNoOp, <fcsNoOp, <fcsCallI, <fcsOffWait, <fcsFullCmd, <fcsCall, <fcsRet, <fcsJump, <fcsTickRate, <fcsWaitS, <fcsWaitC, <fcsWait1, <fcsStop
|
|
.db <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd, <fcsSpeedDialCmd
|
|
|
|
fcsCmdReadTableHigh:
|
|
.db >fcsNoArgDispatch
|
|
.db >fcsOneByteDispatch
|
|
.db >fcsTwoByteDispatch
|
|
.db >fcsOneShortDispatch
|
|
.db >fcsTwoShortDispatch
|
|
|
|
fcsCmdReadTableLow:
|
|
.db <fcsNoArgDispatch
|
|
.db <fcsOneByteDispatch
|
|
.db <fcsTwoByteDispatch
|
|
.db <fcsOneShortDispatch
|
|
.db <fcsTwoShortDispatch
|
|
|
|
fcsFullCmdTable:
|
|
; starting from $1c
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 4
|
|
.db 1
|
|
; FM commands
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 1
|
|
.db 2
|
|
.db 2
|
|
.db 3
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; PSG commands
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; Game Boy commands
|
|
.db 1
|
|
.db 1
|
|
; PC Engine commands
|
|
.db 1
|
|
.db 1
|
|
; NES
|
|
.db 1
|
|
.db 1
|
|
; C64
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 3
|
|
.db 3
|
|
; AY commands
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 2
|
|
.db 2
|
|
; FDS
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; SAA1099
|
|
.db 1
|
|
; Amiga
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; Lynx
|
|
.db 3
|
|
; QSound
|
|
.db 1
|
|
.db 3
|
|
.db 1
|
|
.db 1
|
|
; X1-010
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; WonderSwan
|
|
.db 1
|
|
.db 1
|
|
; Namco 163
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; Sound Unit
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 1
|
|
.db 1
|
|
; ADPCM-A
|
|
.db 1
|
|
; SNES
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 2
|
|
; NES
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; macro control
|
|
.db 1
|
|
.db 1
|
|
; surround
|
|
.db 2
|
|
; FM
|
|
.db 1
|
|
.db 1
|
|
; ES5506
|
|
.db 1
|
|
.db 4
|
|
.db 4
|
|
.db 2
|
|
.db 2
|
|
.db 3
|
|
.db 1
|
|
.db 1
|
|
.db 2
|
|
.db 2
|
|
.db 1
|
|
; unused gap
|
|
.db 1
|
|
; SNES
|
|
.db 1
|
|
.db 1
|
|
; NES linear counter
|
|
.db 1
|
|
; ext cmd
|
|
.db 1
|
|
; C64
|
|
.db 1
|
|
.db 1
|
|
; ESFM
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
.db 2
|
|
; restart macro
|
|
.db 1
|
|
; PowerNoise
|
|
.db 2
|
|
.db 2
|
|
; Dave
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; MinMod
|
|
.db 1
|
|
; Bifurcator
|
|
.db 2
|
|
.db 2
|
|
; FDS AutoMod
|
|
.db 1
|
|
; OpMask
|
|
.db 1
|
|
; MultiPCM
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; SID3
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 2
|
|
.db 1
|
|
.db 2
|
|
.db 2
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; slide
|
|
.db 2
|
|
.db 2
|
|
; SID3 continued
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
.db 1
|
|
; WonderSwan speaker vol
|
|
.db 1
|
|
|
|
; "dummy" implementation - example only!
|
|
|
|
fcsDummyFunc:
|
|
rts
|
|
|
|
fcsVolMaxExample:
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
.db $7f, $00
|
|
|
|
; first 64 commands
|
|
fcsCmdTableExample:
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|
|
.db 0, 0, 0, 0, 0, 0, 0, 0
|