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cc65/libsrc/runtime/lpop.s

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;
; Ullrich von Bassewitz, 29.12.1999
;
; CC65 runtime: long pop
;
.export popeax
.import incsp4
.importzp sp, sreg
popeax: ldy #3
lda (sp),y
sta sreg+1
dey
lda (sp),y
sta sreg
dey
lda (sp),y
tax
dey
lda (sp),y
jmp incsp4