X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libsrc%2Fruntime%2Fpushax.s;h=d9efe7c0e636f4b52000c472b9ca410b66f04152;hb=463712217c7cfa64414da8d964fb24de0e7e78cd;hp=077c52ca8c4e1f933287795c1a12a827e1c97fd1;hpb=4a7642e98c404883e6757e5dabd36e3a9c8431a9;p=cc65

diff --git a/libsrc/runtime/pushax.s b/libsrc/runtime/pushax.s
index 077c52ca8..d9efe7c0e 100644
--- a/libsrc/runtime/pushax.s
+++ b/libsrc/runtime/pushax.s
@@ -15,24 +15,21 @@ pusha0:	ldx	#0
 ; Beware^2: The optimizer knows about the value of Y after the function
 ;           returns!
 
-pushax:	ldy	sp
-       	beq	@L1
-       	dey
-       	beq	@L2
-       	dey
-@L0:	sty	sp
-	ldy	#0    		; get index
-    	sta	(sp),y		; store lo byte
-    	pha	      		; save it
-    	txa	      		; get hi byte
-    	iny	      		; bump idx
-    	sta	(sp),y		; store hi byte
-    	pla	    		; get A back
-    	rts	    		; done
+.proc	pushax
 
-@L1:	dey
-@L2:	dey
-    	dec	sp+1
-    	jmp	@L0
+	pha                     ; (3)
+	lda	sp              ; (6)
+	sec                     ; (8)
+	sbc	#2              ; (10)
+	sta	sp		; (13)
+	bcs	@L1             ; (17)
+	dec	sp+1            ; (+5)
+@L1:	ldy	#1              ; (19)
+	txa			; (21)
+	sta	(sp),y          ; (27)
+	pla                     ; (31)
+	dey                     ; (33)
+	sta	(sp),y		; (38)
+	rts                     ; (44)     
 
-		    
+.endproc