From: cuz <cuz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Fri, 10 Oct 2003 17:59:00 +0000 (+0000)
Subject: Squeeze two cycles out of the abs() function
X-Git-Tag: V2.12.0~1268
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=3f06947b36a77d8a2e6dd8f3a147434740866de2;p=cc65

Squeeze two cycles out of the abs() function


git-svn-id: svn://svn.cc65.org/cc65/trunk@2508 b7a2c559-68d2-44c3-8de9-860c34a00d81
---

diff --git a/libsrc/common/abs.s b/libsrc/common/abs.s
index 89161ab59..273ec1c9a 100644
--- a/libsrc/common/abs.s
+++ b/libsrc/common/abs.s
@@ -7,8 +7,7 @@
 	.export		_abs
 	.import		negax
 
-_abs:	dex
-	inx     	     	; test hi byte
+_abs:	cpx     #$00            ; test hi byte
 	bpl	L1
 	jmp	negax	     	; Negate if negative
 L1:	rts