937 lines
18 KiB
ArmAsm
937 lines
18 KiB
ArmAsm
; da65 V2.18 - Ubuntu 2.19-1
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; Created: 2021-08-15 19:24:06
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; Input file: star2-trimmed.prg
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; Page: 1
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.setcpu "6502"
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L0D2B := $0D2B
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L0F17 := $0F17
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L2020 := $2020
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L2221 := $2221
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L423A := $423A
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L4353 := $4353
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L454C := $454C
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L4948 := $4948
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L5420 := $5420
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L5453 := $5453
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L5941 := $5941
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LE097 := $E097
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LFFD2 := $FFD2
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LC0F0: jmp LC76A
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LC0F3: ldy $15
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sty $D401
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beq LC0FC
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dec $15
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LC0FC: jmp LC200
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rts
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LC100: brk
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clc
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brk
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brk
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clc
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brk
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brk
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clc
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brk
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brk
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.byte $3C
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brk
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asl $783C,x
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.byte $0F
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.byte $3C
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beq LC11A
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.byte $FF
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cpx #$03
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.byte $E7
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cpy #$03
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.byte $C3
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LC11A: cpx #$3F
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lda $FFFC,x
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lda $3FFF,x
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.byte $C3
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.byte $FC
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.byte $03
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.byte $E7
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cpx #$03
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.byte $FF
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cpx #$07
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.byte $3C
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beq LC14C
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.byte $3C
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sec
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asl $383C,x
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brk
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clc
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brk
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brk
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clc
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brk
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brk
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clc
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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brk
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bmi LC14C
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LC14C: brk
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sei
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brk
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brk
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.byte $FC
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brk
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ora ($FE,x)
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brk
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.byte $03
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.byte $FF
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brk
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brk
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sei
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brk
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brk
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sei
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brk
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.byte $03
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.byte $7B
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brk
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.byte $07
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.byte $7B
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.byte $80
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.byte $0F
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.byte $7B
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cpy #$1F
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.byte $7B
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cpx #$3F
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.byte $FF
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beq LC1ED
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.byte $FF
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sed
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.byte $7C
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.byte $FC
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sed
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adc $78FE,y
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.byte $73
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.byte $FF
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sec
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.byte $63
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.byte $FF
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clc
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brk
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brk
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brk
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brk
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LC180: .byte $93
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ora $0D
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ora $0D0D
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jsr L2020
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jsr L2020
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jsr L2020
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jsr L4353
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.byte $4F
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.byte $52
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eor $3A
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LC196: .byte $30
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LC197: .byte $30
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LC198: bmi LC1CA
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jsr L454C
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lsr $45,x
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.byte $4C
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.byte $3A
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LC1A1: .byte $42
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ora $9E0D
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jsr L2020
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jsr L2020
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jsr L2020
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jsr L2020
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jsr L2020
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jsr L4948
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.byte $54
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jsr L0D2B
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ora L2020
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jsr L2020
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jsr L2020
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jsr L5420
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.byte $4F
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LC1C8: .byte $20
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.byte $50
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LC1CA: jmp L5941
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jsr L5453
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eor ($52,x)
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.byte $44
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.byte $52
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eor ($47,x)
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.byte $4F
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.byte $4E
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LC1D8: brk
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rti
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.byte $80
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.byte $C0
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LC1DC: cpy #$30
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.byte $0C
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.byte $03
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LC1E0: jsr L2221
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.byte $23
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and $26
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.byte $27
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plp
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rol a
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.byte $2B
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.byte $2C
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LC1EB: .byte $2D
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.byte $2F
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LC1ED: bmi LC220
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.byte $32
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.byte $34
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and $36,x
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.byte $37
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and $3B3A,y
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.byte $3C
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rol $403F,x
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eor ($43,x)
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.byte $44
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eor $46
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LC200: ldx #$00
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ldx #$00
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LC204: lda $CF00,x
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beq LC24D
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cmp #$01
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beq LC221
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ldy $CFD0,x
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dey
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dey
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tya
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sta $CFD0,x
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cmp #$04
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bcs LC21F
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lda #$00
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sta $CF00,x
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LC21F: .byte $F0
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LC220: .byte $2C
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LC221: ldy $CF40,x
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lda $CFC0,x
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sta $AE
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lda $CF20,x
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jsr LC253
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sta $CF40,x
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lda $AE
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sta $CFC0,x
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ldy $CF50,x
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lda $CFD0,x
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sta $AE
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lda $CF30,x
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jsr LC253
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sta $CF50,x
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lda $AE
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sta $CFD0,x
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LC24D: inx
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cpx #$0F
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bne LC204
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rts
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LC253: bmi LC25F
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asl a
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sty $02
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adc $02
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bcc LC25E
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inc $AE
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LC25E: rts
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LC25F: asl a
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sta $02
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tya
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sbc $02
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bcs LC269
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dec $AE
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LC269: rts
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LC26A: jmp LC313
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LC26D: ldx #$00
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LC26F: lda $CF00,x
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cmp #$01
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bne LC26A
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ldy #$00
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sty $AE
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sty $B0
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lda #$FF
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sta $AF
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sta $B1
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inc $CF70,x
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lda $CF70,x
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bne LC29D
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lda #$FC
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sta $CF70,x
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dec $CF10,x
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lda $CF10,x
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bne LC29D
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jsr LC2DD
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jmp LC313
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LC29D: lda $CFC0,x
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cmp #$12
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bcs LC2AC
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ldy #$00
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sty $AE
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ldy #$7F
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sty $AF
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LC2AC: cmp #$9C
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bcc LC2B8
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ldy #$80
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sty $AE
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ldy #$FF
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sty $AF
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LC2B8: lda $CFD0,x
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cmp #$30
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bcs LC2C7
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ldy #$00
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sty $B0
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ldy #$7F
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sty $B1
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LC2C7: cmp #$DA
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bcc LC2D3
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ldy #$80
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sty $B0
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ldy #$FF
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sty $B1
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LC2D3: cpy #$00
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beq LC313
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jsr LC2DD
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sec
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bcs LC313
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LC2DD: ldy $CF60,x
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lda $CE00,y
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ora $AE
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and $AF
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sta $CF20,x
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lda $CE01,y
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ora $B0
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and $B1
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sta $CF30,x
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lda $CE01,y
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ora $B0
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and $B1
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sta $CF30,x
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lda $CF10,x
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beq LC312
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lda $CE02,y
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sta $CF10,x
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lda $CF60,x
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clc
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adc #$04
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sta $CF60,x
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LC312: rts
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LC313: inx
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cpx #$0F
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bcs LC31B
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jmp LC26F
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LC31B: rts
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LC31C: jmp LC3F6
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LC31F: ldx #$00
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LC321: lda $CC00,x
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cmp #$00
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beq LC31C
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cmp #$02
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bcc LC331
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lda #$00
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sta $CC00,x
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LC331: lda $CB80,x
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sta $AE
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lda $CBC0,x
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sta $AF
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lda #$00
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tay
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sta ($AE),y
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lda $CDC0,x
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sta $AD
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LC345: lda $AD
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beq LC39D
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ldy #$00
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lda $CD40,x
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cmp #$04
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bcs LC353
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iny
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LC353: cmp #$9E
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bcc LC358
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iny
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LC358: lda $CD80,x
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cmp #$C8
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bcc LC360
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iny
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LC360: cpy #$00
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beq LC36C
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lda #$00
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sta $CC00,x
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jmp LC3F6
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LC36C: lda $CD40,x
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sta $AE
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ldy $CCC0,x
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lda $CC40,x
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jsr LC253
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sta $CCC0,x
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lda $AE
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sta $CD40,x
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lda $CD80,x
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sta $AE
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ldy $CD00,x
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lda $CC80,x
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jsr LC253
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sta $CD00,x
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lda $AE
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sta $CD80,x
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dec $AD
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jmp LC345
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LC39D: lda $CD80,x
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lsr a
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lsr a
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lsr a
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pha
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and #$03
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stx $02
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tay
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lda LC1D8,y
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sta $AE
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pla
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tay
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lda LC1E0,y
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sta $AF
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lda $CD40,x
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clc
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adc $AE
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sta $AE
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bcc LC3C1
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inc $AF
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LC3C1: lda $CD40,x
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clc
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adc $AE
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sta $AE
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bcc LC3CD
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inc $AF
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LC3CD: and #$F8
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sta $AE
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lda $CD80,x
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and #$07
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tay
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lda $CD40,x
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and #$03
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tax
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lda LC1DC,x
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ora ($AE),y
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sta ($AE),y
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ldx $02
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clc
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tya
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adc $AE
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bcc LC3EE
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inc $AF
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LC3EE: sta $CB80,x
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lda $AF
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sta $CBC0,x
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LC3F6: inx
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cpx #$40
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beq LC3FE
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jmp LC321
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LC3FE: rts
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;; cfcf = current x position
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LC3FF: ldy $CFCF
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;lda $CB
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;cmp #$0A
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;bne LC40E
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;cpy #$0E
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;bcc LC40E
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; go to the left
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; bits: 1: up, 2: down, 4: left, 8: right, 16: fire
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; read from joystick
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lda #$04
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bit $dc01
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bne skipleft
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; can't go any farther
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cpy #$0E
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bcc skipleft
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dey
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dey
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skipleft: ;cmp #$12
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lda #$08
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bit $dc01
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bne skipright
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;bne LC418
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cpy #$A0
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bcs skipright
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; go to the right
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iny
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iny
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; store position
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skipright: sty $CFCF
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;lda $028D
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;cmp $16
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;sta $16
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; fire a shot
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lda #$10
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bit $dc01
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bne almostdone
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lda $16
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cmp #$01
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beq done
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lda #$01
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sta $16
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jsr LC42C
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jmp done
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;beq LC42B
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;cmp #$04
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;bne LC42B
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almostdone:
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lda #$00
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sta $16
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done: rts
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LC42C: ldx #$00
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LC42E: lda $CC00,x
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bne LC454
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lda #$06
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sta $CDC0,x
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lda #$00
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sta $CC40,x
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lda #$FF
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sta $CC80,x
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lda $CFCF
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sec
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sbc #$08
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sta $CD40,x
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lda #$B0
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sta $CD80,x
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inc $CC00,x
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rts
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LC454: inx
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cpx #$40
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bne LC42E
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rts
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LC45A: ldx #$00
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LC45C: lda $CC00,x
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beq LC4BC
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lda $CDC0,x
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cmp #$03
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beq LC4BC
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lda $CD40,x
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sta $B0
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lda $CD80,x
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sta $B1
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stx $02
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ldx #$00
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stx $AF
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LC478: lda $CF00,x
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cmp #$01
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bne LC4C2
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lda $CFC0,x
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sbc #$0C
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cmp $B0
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bcs LC4B5
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adc #$0C
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cmp $B0
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bcc LC4B5
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lda $CFD0,x
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sbc #$30
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cmp $B1
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bcs LC4B5
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adc #$14
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cmp $B1
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bcc LC4B5
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cpx $AF
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bne LC4C7
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lda #$02
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sta $CF00,x
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lda #$2A
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sta $15
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stx $AA
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ldx $02
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lda #$F0
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sta $CD80,x
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ldx $AA
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LC4B5: inx
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cpx #$0F
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bne LC478
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LC4BA: ldx $02
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LC4BC: inx
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cpx #$40
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bne LC45C
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rts
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LC4C2: inc $AF
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bne LC4B5
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rts
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LC4C7: jsr LE097
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ldx $02
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lda #$03
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sta $CDC0,x
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lda $8E
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sta $CC40,x
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lda #$7F
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sta $CC80,x
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jmp LC4BA
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LC4DE: lda $CF0E
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cmp #$02
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beq LC4E8
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jmp LC563
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LC4E8: lda $CFCE
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sbc #$08
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sta $B0
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lda $CFDE
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sbc #$28
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sta $B1
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ldx #$00
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LC4F8: stx $02
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jsr LE097
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ldx $02
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lda $8E
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sta $CC40,x
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lda $8F
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sta $CC80,x
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lda #$01
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sta $CC00,x
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lda $8D
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and #$03
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sta $CDC0,x
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lda $B0
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sta $CD40,x
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lda $B1
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sta $CD80,x
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inx
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cpx #$40
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bne LC4F8
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ldx #$00
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stx $CFBA
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ldx #$80
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stx $CFBB
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ldx #$00
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LC530: stx $96
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jsr LC31F
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ldx $96
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inx
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stx $D401
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bne LC530
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inc $9FFD
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ldx $9FFD
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cpx #$03
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bcc LC55D
|
|
inc $9FFF
|
|
lda #$00
|
|
sta $9FFD
|
|
lda $9FFF
|
|
cmp #$0B
|
|
beq LC560
|
|
lda #$22
|
|
sta $B1
|
|
jsr LC5BD
|
|
LC55D: jmp LC63A
|
|
|
|
LC560: jmp LC723
|
|
|
|
LC563: lda $CFBF
|
|
bmi LC591
|
|
lda $CFBF
|
|
bmi LC591
|
|
ldx #$00
|
|
LC56F: lda $CFC0,x
|
|
sbc #$05
|
|
cmp $CFCF
|
|
bcs LC589
|
|
adc #$0B
|
|
cmp $CFCF
|
|
bcc LC589
|
|
lda $CFD0,x
|
|
cmp #$D6
|
|
bcc LC589
|
|
bcs LC591
|
|
LC589: inx
|
|
cpx #$0F
|
|
bne LC56F
|
|
jmp LC622
|
|
|
|
LC591: lda #$08
|
|
sta $D401
|
|
ldx #$00
|
|
LC598: ldy #$00
|
|
LC59A: iny
|
|
bne LC59A
|
|
inc $D020
|
|
inx
|
|
bne LC598
|
|
stx $D401
|
|
inc $9FFA
|
|
lda $9FFA
|
|
cmp #$03
|
|
bcs LC5B3
|
|
jmp LC63A
|
|
|
|
LC5B3: stx $CFBA
|
|
stx $CFBB
|
|
LC5B9: lda #$58
|
|
sta $B1
|
|
LC5BD: lda #$15
|
|
sta $D018
|
|
lda #$1B
|
|
sta $D011
|
|
ldx #$00
|
|
lda $9FFD
|
|
asl a
|
|
clc
|
|
adc #$30
|
|
sta LC198
|
|
lda $9FFF
|
|
sec
|
|
adc #$3F
|
|
sta LC1A1
|
|
sbc #$10
|
|
LC5DE: cmp #$3A
|
|
bcc LC5E9
|
|
inc LC196
|
|
sbc #$0A
|
|
bcs LC5DE
|
|
LC5E9: sta LC197
|
|
ldx #$00
|
|
LC5EE: lda LC180,x
|
|
jsr LFFD2
|
|
inx
|
|
cpx $B1
|
|
bne LC5EE
|
|
sta $A2
|
|
asl a
|
|
LC5FC: cmp $A2
|
|
bne LC5FC
|
|
lda $B1
|
|
cmp #$58
|
|
beq LC607
|
|
rts
|
|
|
|
LC607: lda $CB
|
|
cmp #$28
|
|
bne LC607
|
|
jmp LC0F0
|
|
|
|
; the main game loop?
|
|
LC610: jsr LC26D
|
|
lda $9FFF
|
|
sta $B4
|
|
LC618: jsr LC0F3
|
|
dec $B4
|
|
bne LC618
|
|
jmp LC4DE
|
|
|
|
LC622: jsr LC3FF
|
|
jsr LC31F
|
|
jsr LC45A
|
|
; reading shift lock
|
|
LC62B: lda $028D
|
|
cmp #$01
|
|
;bne LC610
|
|
;lda #$00
|
|
;sta $D401
|
|
;jmp LC62B
|
|
jmp LC610
|
|
|
|
LC63A: lda #$20
|
|
sta $B1
|
|
lda #$00
|
|
sta $B0
|
|
tay
|
|
tax
|
|
LC644: sta ($B0),y
|
|
iny
|
|
bne LC644
|
|
inx
|
|
inc $B1
|
|
cpx #$20
|
|
bne LC644
|
|
tax
|
|
LC651: sta $CF00,x
|
|
sta $CC00,x
|
|
inx
|
|
cpx #$BA
|
|
bne LC651
|
|
tax
|
|
LC65D: stx $02
|
|
jsr LE097
|
|
lda $8E
|
|
ldx $02
|
|
and #$BF
|
|
sta $CE00,x
|
|
inx
|
|
bne LC65D
|
|
ldx #$00
|
|
LC670: lda $CE02,x
|
|
and #$1F
|
|
sta $CE02,x
|
|
inx
|
|
inx
|
|
inx
|
|
inx
|
|
bne LC670
|
|
lda $8F
|
|
lsr a
|
|
lsr a
|
|
adc #$20
|
|
sta $AC
|
|
LC686: lda $AC
|
|
sta $CFC0,x
|
|
lda #$40
|
|
sta $CFD0,x
|
|
stx $02
|
|
jsr LE097
|
|
ldx $02
|
|
lda $8F
|
|
and #$07
|
|
adc #$02
|
|
sta $CFE0,x
|
|
inc $CF00,x
|
|
lda #$0D
|
|
sta $CFF0,x
|
|
lda #$F0
|
|
sta $CF70,x
|
|
inx
|
|
cpx #$0F
|
|
bne LC686
|
|
lda #$FF
|
|
sta $CFBA
|
|
sta $CFBB
|
|
lda #$0E
|
|
sta $CFFF
|
|
ldx #$00
|
|
ldy #$01
|
|
LC6C3: tya
|
|
sta $CF10,x
|
|
inx
|
|
iny
|
|
cpx #$0F
|
|
bne LC6C3
|
|
lda #$E0
|
|
sta $CFDF
|
|
lda #$80
|
|
sta $FFCF
|
|
lda #$3B
|
|
sta $D011
|
|
lda #$1D
|
|
sta $D018
|
|
lda #$01
|
|
sta $CFEF
|
|
ldx #$00
|
|
lda #$10
|
|
LC6EA: sta $0400,x
|
|
sta $0500,x
|
|
sta $0600,x
|
|
sta $06E8,x
|
|
inx
|
|
bne LC6EA
|
|
lda #$0F
|
|
sta $D418
|
|
lda #$0F
|
|
sta $D405
|
|
lda #$F5
|
|
sta $D406
|
|
lda #$81
|
|
sta $D404
|
|
ldx #$00
|
|
LC70F: lda #$30
|
|
sta LC196,x
|
|
inx
|
|
cpx #$04
|
|
bne LC70F
|
|
lda $9FFF
|
|
asl a
|
|
sta $D020
|
|
jmp LC610
|
|
|
|
LC723: ldx #$00
|
|
lda #$93
|
|
jsr LFFD2
|
|
lda #$1B
|
|
sta $D011
|
|
lda #$15
|
|
sta $D018
|
|
LC734: lda LC752,x
|
|
sta $D920,x
|
|
sta $0520,x
|
|
inx
|
|
cpx #$18
|
|
bne LC734
|
|
dex
|
|
stx $A2
|
|
dex
|
|
LC746: lda $A2
|
|
sta $D021
|
|
cpx $A2
|
|
bne LC746
|
|
jmp LC5B9
|
|
|
|
LC752: .byte $07
|
|
.byte $0F
|
|
.byte $0F
|
|
.byte $04
|
|
jsr L0F17
|
|
.byte $12
|
|
.byte $0B
|
|
bit $0420
|
|
.byte $12
|
|
ora ($07,x)
|
|
.byte $0F
|
|
asl $0C13
|
|
ora ($19,x)
|
|
ora $12
|
|
.byte $21
|
|
LC76A: ldx #$00
|
|
LC76C: lda #$20
|
|
sta $CBC0,x
|
|
lda LC100,x
|
|
sta $0340,x
|
|
inx
|
|
cpx #$80
|
|
bne LC76C
|
|
lda #$00
|
|
sta $9FFA
|
|
sta $9FFD
|
|
lda #$01
|
|
sta $9FFF
|
|
lda #$50
|
|
sta $CFCF
|
|
sta $D021
|
|
sta $D020
|
|
jmp LC63A
|
|
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
brk
|
|
nop
|
|
nop
|
|
nop
|
|
nop
|