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cc65/libsrc/runtime/incax1.s

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;
; Ullrich von Bassewitz, 05.08.1998
;
; CC65 runtime: Increment ax by 1
;
.export incax1
.macpack generic
.macpack cpu
.proc incax1
.if (.cpu .bitand ::CPU_ISET_65SC02)
ina ; 65C02 version
bne @L9
.else
add #1
bcc @L9
.endif
inx
@L9: rts
.endproc