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cc65/libsrc/runtime/popa.s

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;
; Ullrich von Bassewitz, 25.10.2000
;
; CC65 runtime: Pop a from stack
;
.export popa
.importzp sp
.proc popa
ldy #0
lda (sp),y ; Read byte
inc sp
bne @L1
inc sp+1
@L1: rts
.endproc