cc65/libsrc/runtime/pushwsp.s

;
; Ullrich von Bassewitz, 24.10.2001
;
; CC65 runtime: Load word from stack slot and push
;

       	.export		pushwysp, pushw0sp
      	.importzp	sp

	.macpack	generic

pushw0sp:
      	ldy	#2
pushwysp:
	lda	sp	       	; 3
       	sub    	#2     	       	; 4
	sta	sp		; 3
	bcs	@L1		; 3(+1)
	dec	sp+1		; (5)
@L1:	lda	(sp),y		; 5 =16
	tax			; 2
	dey			; 2
	lda	(sp),y		; 5
	ldy	#$00		; 2
	sta	(sp),y		; 5
	iny			; 2
	txa			; 2
	sta	(sp),y		; 5
	rts