451 lines
8.3 KiB
Plaintext
451 lines
8.3 KiB
Plaintext
NLS
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;INTRO
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XLO EPZ $00
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REM EPZ $00
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XHI EPZ $01
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DIV EPZ $01
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XVAL EPZ $02
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QUO EPZ $03
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YVAL EPZ $04
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RYLO EPZ $05
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YLO EPZ $05
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RYHI EPZ $06
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YHI EPZ $06
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YSIZE EPZ $07
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XSIZE EPZ $08
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SHIFTL EPZ $09
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SHIFTH EPZ $0A
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XREG EPZ $0B
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BLKL EPZ $0C
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BLKH EPZ $0D
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MSKL EPZ $0E
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MSKH EPZ $0F
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YREG EPZ $10
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TEMP EPZ $11
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TN1 EPZ $12
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TN2 EPZ $13
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PAGE EPZ $14
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N1 EPZ $15
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N2 EPZ $16
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FDTIME EPZ $17
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HDX EPZ $1D
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HDY EPZ $1E
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HDN EPZ $1F
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RNDNEW EPZ $4E
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RNDOLD EPZ $4F
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BLO EPZ $86
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BHI EPZ $87
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MLO EPZ $88
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MHI EPZ $89
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JSR $FC58
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LDA #$20
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STA PAGE
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JSR FCLEAR
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LDX #$12
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^1 LDA MES2-1,X
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JSR $FDED
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DEX
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BNE <1
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LDA $C050
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LDA $C057
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LDA $C054
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LDA $C052
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LDA #$40
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STA PAGE
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JSR CLEAR
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LDA #$01
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STA FDTIME
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STA N1
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LDA #$00
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STA N2
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LDA #$71
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STA HDX
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LDA #$85
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STA HDY
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JSR SWITCH
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LDA #$07
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STA HDN
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JSR DHD
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JSR DSOLVE
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JSR SWITCH
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JSR DHD
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JSR SWITCH
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JSR D1
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JSR DSOLVE
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JSR SWITCH
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JSR D1
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JSR SWITCH
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JSR D2
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JSR DSOLVE
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JSR SWITCH
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JSR D2
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JSR SWITCH
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JSR D3
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JSR DSOLVE
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JSR SWITCH
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JSR D3
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JSR SWITCH
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JSR D4
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JSR DSOLVE
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JSR SWITCH
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JSR D4
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JSR SWITCH
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JSR D5
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JSR DSOLVE
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JSR SWITCH
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JSR D5
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JSR SWITCH
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JSR D6
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JSR DSOLVE
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JSR SWITCH
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JSR D6
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JSR SWITCH
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JSR D7
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JSR DSOLVE
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JSR SWITCH
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JSR D7
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JSR SWITCH
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JSR D8
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JSR DSOLVE
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JSR SWITCH
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JSR $FC58
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LDX #139
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^1 LDA MESS6-1,X
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JSR $FDED
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DEX
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BNE <1
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LDA $C051
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LDA $C054
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LDA $C010
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^1 INC RNDNEW
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BNE >2
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INC RNDOLD
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^2 LDA $C000
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BPL <1
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LDX #$0B
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^1 LDA MESS-1,X
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JSR $FDED
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DEX
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BNE <1
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MESS .DA #$8D,"NIB NURB",#$84,#$8D
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MESS6 .DA "DEVRESER STHGIR LLA ERAWTFOS TSOMATAD YB 2891 THGIRYPOC )C(",#$8D
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.DA #$8D,#$8D,#$8D,#$8D
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.DA "EOHSHTRAE EVORGNAM YB ",#$8D
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.DA "DAOTSELIB EHT ",#$8D,#$8D,#$8D,#$8D,#$8D,#$8D,#$8D,#$8D
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MES2 .DA #$8D,"0006$A,BI DAOLB",#$84,#$8D
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RTS
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D1 JMP >1
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D2 JMP >2
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D3 JMP >3
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D4 JMP >4
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D5 JMP >5
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D6 JMP >6
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D7 JMP >7
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D8 LDX #$0C
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LDA #$40
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STA HDY
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^9 LDA ME1-1,X
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STA HDN
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LDA ME2-1,X
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STA HDX
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TXA
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PHA
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JSR DHD
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PLA
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TAX
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DEX
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BNE <9
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RTS
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ME1 HEX 08090A0B0C0D0A0E0F101112
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ME2 HEX 1024386C8490A0B0C0D0E0F0
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^1 LDA #$07
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STA HDN
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JSR DHD
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LDA #$06
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STA HDN
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JSR DHD
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RTS
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^2 LDA #$05
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STA HDN
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JSR DHD
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RTS
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^3 LDA #$04
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STA HDN
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JSR DHD
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RTS
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^4 LDA #$03
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STA HDN
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JSR DHD
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RTS
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^5 LDA #$02
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STA HDN
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JSR DHD
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RTS
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^6 LDA #$01
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STA HDN
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JSR DHD
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RTS
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^7 LDA #$00
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STA HDN
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JSR DHD
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RTS
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RND LDA RNDNEW
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PHA
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ASL
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LDA RNDOLD
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ADC RNDNEW
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STA RNDNEW
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PLA
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STA RNDOLD
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RTS
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RTS
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RELOC LDX #$7F
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STX MHI
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LDY #$00
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STY MLO
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STY BLO
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LDA #$BF
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STA BHI
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LDX #$60
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^1 LDA (MLO),Y
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STA (BLO),Y
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LDA #$00
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STA (MLO),Y
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INY
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BNE <1
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DEC MHI
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DEC BHI
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DEX
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BNE <1
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RTS
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DHD LDA HDN
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ASL
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TAX
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LDA HS,X
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STA MSKL
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LDA HS+1,X
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STA MSKH
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LDA DS,X
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STA BLKL
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LDA DS+1,X
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STA BLKH
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LDA HD,X
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BMI >1
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LDA HDX
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SEC
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SBC HD,X
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BCC DHDEX
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STA XVAL
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JMP >2
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^1 LDA HDX
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SEC
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SBC HD,X
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BCS DHDEX
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STA XVAL
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^2 LDA HD+1,X
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BMI DHSK2A
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LDA HDY
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SEC
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SBC HD+1,X
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BCC DHDEX
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STA YVAL
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JMP DHSK2B
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DHSK2A LDA HDY
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SEC
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SBC HD+1,X
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BCS DHDEX
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STA YVAL
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DHSK2B LDA HSIZ+1,X
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STA YSIZE
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LDA HSIZ,X
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STA XSIZE
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DHREM JSR OUTBLK
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DHDEX RTS
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XCALC LDA #$00
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STA DIV
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LDA #$E0
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STA QUO
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LDA XVAL
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LDY #$06
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LP CMP QUO
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BLT CON
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SBC QUO
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CON ROL DIV
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LSR QUO
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DEY
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BNE LP
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STA REM
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RTS
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YCALC LDA YVAL
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SEC
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SBC #36
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JSR YMUS
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RTS
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REYCAL LDA YVAL
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YMUS PHA
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PHA
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AND #$C0
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STA YLO
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PLA
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LSR
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ROR
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PHA
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AND #$30
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ORA YLO
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STA YLO
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PLA
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ROR
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ROR
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ROR YLO
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AND #$03
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STA YHI
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PLA
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ASL
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ASL
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AND #$1C
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ORA YHI
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ORA PAGE
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STA YHI
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RTS
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DLIN LDA YHI
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CLC
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ADC #$04
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PHA
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AND #$1C
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BEQ DLIN2
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PLA
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STA YHI
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RTS
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DLIN2 PLA
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SEC
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SBC #$20
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ASL YLO
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ROL
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ADC #$01
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PHA
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AND #$07
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BEQ DLIN3
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PLA
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LSR
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ROR YLO
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STA YHI
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RTS
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DLIN3 LSR YLO
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PLA
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LSR
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SEC
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SBC #$04
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STA YHI
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LDA YLO
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CLC
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ADC #$28
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CMP #$A0
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BEQ DLIN4
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STA YLO
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RTS
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DLIN4 LDA #$00
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STA YLO
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RTS
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OUTBLK JSR XCALC
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JSR YCALC
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LDX YSIZE
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OLP1 JSR MOVEL
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JSR PREP
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JSR OUTLN
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DEX
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BNE OLP1
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RTS
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MOVEL LDY XSIZE
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LDA #$00
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STA BYTES,Y
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STA BYTES+1,Y
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LDA #$FF
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STA MASKS,Y
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STA MASKS+1,Y
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MLP1 LDA (BLKL),Y
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STA BYTES-1,Y
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LDA (MSKL),Y
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STA MASKS-1,Y
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DEY
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BNE MLP1
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LDA BLKL
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CLC
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ADC XSIZE
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STA BLKL
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LDA BLKH
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ADC #$00
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STA BLKH
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LDA MSKL
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CLC
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ADC XSIZE
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STA MSKL
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LDA MSKH
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ADC #$00
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STA MSKH
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RTS
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PREP STX XREG
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LDX XSIZE
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INX
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INX
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STX SHIFTH
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LDA #$00
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STA SHIFTL
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LDX XLO
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BEQ PREPL2
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PREPL1 JSR SHIFT
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DEX
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BNE PREPL1
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PREPL2 STX SHIFTL
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JSR SHIFT
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LSR BYTES,X
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SEC
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ROR MASKS,X
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INX
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CPX SHIFTH
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BNE PREPL2
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LDX XREG
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RTS
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SHIFT STX YREG
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CLC
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LDX SHIFTL
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PHP
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SHIFL1 PLP
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ROL BYTES,X
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PHP
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INX
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CPX SHIFTH
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BNE SHIFL1
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PLP
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SEC
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LDX SHIFTL
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PHP
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SHIFL2 PLP
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ROL MASKS,X
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PHP
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INX
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CPX SHIFTH
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BNE SHIFL2
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PLP
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LDX YREG
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RTS
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OUTLN STX XREG
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LDX #$00
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LDY XHI
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OUTLP1 LDA MASKS,X
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EOR #$FF
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ORA (YLO),Y
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EOR BYTES,X
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STA (YLO),Y
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INY
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INX
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CPX SHIFTH
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BNE OUTLP1
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JSR DLIN
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LDX XREG
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RTS
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;
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BYTES HEX 00000000000000000000
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;
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MASKS HEX 00000000000000000000
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ICL "TWO"
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