mirror of
https://github.com/nathanriggs/AppleIIAsm-Collection.git
synced 2025-02-23 01:28:59 +00:00
9b12b6fd9b
- getting ready for major changes for 0.6.0. - be sure to download the 0.5.0 release to ensure proper functionality, as these rountines will not work together in the SRC or BIN folder during the transition - Beginning to significantly alter documentation
85 lines
1.8 KiB
NASM
85 lines
1.8 KiB
NASM
]ESIZE EQU VARTAB
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]ESIZEB EQU VARTAB+1
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]ASIZE EQU VARTAB+2
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]AIDX EQU VARTAB+4
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]IDX EQU VARTAB+6
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APUT161
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PLA
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TAX
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PLA
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TAY
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PLA
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STA ]AIDX
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STA ]IDX
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PLA
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STA ]AIDX+1
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STA ]IDX+1
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STA SCRATCH
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PLA
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STA ADDR4
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PLA
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STA ADDR4+1
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PLA
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STA ADDR3
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PLA
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STA ADDR3+1
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TYA
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PHA
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TXA
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PHA
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LDY #0
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LDA (ADDR4),Y
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STA ]ASIZE
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LDY #1
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LDA (ADDR4),Y
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STA ]ASIZE+1
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INY
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LDA (ADDR4),Y
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STA ]ESIZE
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STA ]ESIZEB
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LDY #0
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LDA #0
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BEQ :ENTLPA
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:DOADD
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CLC
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ADC ]AIDX
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TAX
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TYA
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ADC SCRATCH
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TAY
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TXA
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:LPA
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ASL ]AIDX
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ROL SCRATCH
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:ENTLPA
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LSR ]ESIZE
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BCS :DOADD
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BNE :LPA
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STX ]IDX
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STY ]IDX+1
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CLC
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LDA #3
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ADC ]IDX
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STA ADDR2
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LDA ]IDX+1
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ADC #0
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STA ADDR2+1
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CLC
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LDA ADDR2
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ADC ADDR4
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STA ADDR2
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LDA ADDR2+1
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ADC ADDR4+1
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STA ADDR2+1
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LDY #0
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:LP
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LDA (ADDR3),Y
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STA (ADDR2),Y
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INY
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CPY ]ESIZEB
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BNE :LP
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LDY ADDR2+1
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LDX ADDR2
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LDA ]ESIZEB
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RTS
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