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23 lines
273 B
ArmAsm
23 lines
273 B
ArmAsm
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; Ullrich von Bassewitz, 06.08.1998
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; CC65 runtime: boolean negation for longs
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;
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.export bnegeax
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.import return0, return1
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.importzp sreg
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bnegeax:
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cmp #0
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bne L1
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cpx #0
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bne L1
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lda sreg
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bne L1
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lda sreg+1
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bne L1
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jmp return1
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L1: jmp return0
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