mirror of
https://github.com/nathanriggs/AppleIIAsm-Collection.git
synced 2025-02-12 07:30:48 +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
21 lines
429 B
NASM
21 lines
429 B
NASM
]CMP1 EQU WPAR1
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]CMP2 EQU WPAR2
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COMP16
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LDA ]CMP1
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CMP ]CMP2
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BEQ :EQUAL
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LDA ]CMP1+1
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SBC ]CMP2+1
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ORA #1
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BVS :OVFLOW
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RTS
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:EQUAL
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LDA ]CMP1+1
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SBC ]CMP2+1
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BVS :OVFLOW
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RTS
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:OVFLOW
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EOR #$80
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ORA #1
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RTS
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