From 20143c018729797d844bc5449d50b56e5bd5e6ac Mon Sep 17 00:00:00 2001
From: cuz <cuz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Wed, 24 Oct 2001 20:44:54 +0000
Subject: [PATCH] New pushwysp implementation

git-svn-id: svn://svn.cc65.org/cc65/trunk@1071 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 libsrc/runtime/pushwsp.s | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/libsrc/runtime/pushwsp.s b/libsrc/runtime/pushwsp.s
index 1c940e038..d6baf9933 100644
--- a/libsrc/runtime/pushwsp.s
+++ b/libsrc/runtime/pushwsp.s
@@ -8,13 +8,24 @@
       	.import		pushax
       	.importzp	sp
 
+	.macpack	generic
+
 pushw0sp:
-      	ldy	#1
+      	ldy	#2
 pushwysp:
-      	lda	(sp),y		; get hi byte
-      	tax
-      	dey
-      	lda	(sp),y		; get lo byte
-       	jmp	pushax		; push that
-
+	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
 
-- 
2.39.5