21 lines
446 B
ArmAsm
21 lines
446 B
ArmAsm
;
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; Ullrich von Bassewitz, 25.10.2000
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; Christian Krueger, 02-Mar-2017, some bytes saved
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;
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; CC65 runtime: Convert int in ax into a long
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;
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.export axulong, axlong
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.importzp sreg
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; Convert AX from int to long in EAX
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axlong: ldy #$ff
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cpx #$80 ; Positive?
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bcs store ; No, apply $FF
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axulong:
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ldy #0
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store: sty sreg
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sty sreg+1
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rts
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