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32 lines
401 B
NASM
32 lines
401 B
NASM
; Test ADC/SBC, also BCD, eventual
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.org $2000
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;.verbose
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sec
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lda #$50
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sbc #$f0
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beq fail
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bcs fail
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bvs fail
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cmp #$60
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bne fail
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sec
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lda #$50
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sbc #$b0
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bpl fail2
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bvc fail2
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cmp #$a0
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bne fail2
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sec
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lda #$50
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sbc #$30
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bcc fail3
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cmp #$20
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bne fail3
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pass brk
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fail brk ; Failed basic HEX substraction
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fail2 brk ; N V test
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fail3 brk ; C test
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