.segment "LIBCODE"
;
; Ullrich von Bassewitz, 05.08.1998
;
; CC65 runtime: sub ints reversed
;

       	.export	        tosrsuba0, tosrsubax
	.import		addysp1
	.importzp	sp, tmp1

;
; AX = AX - TOS
;

tosrsuba0:
    	ldx 	#0
tosrsubax:
	ldy 	#0
	sec
	sbc	(sp),y	       	; lo byte
	sta	tmp1	       	; save lo byte
	txa
	iny
	sbc	(sp),y	       	; hi byte
	tax
	lda	tmp1
	jmp	addysp1		; drop TOS, set condition codes


