[ros-diffs] [tkreuzer] 36585: Improve memcpy. It was working correctly, but it wasted a cycle. ; -)

Author: tkreuzer
Date: Sun Sep 28 16:50:05 2008
New Revision: 36585

URL: http://svn.reactos.org/svn/reactos?rev=36585&view=rev
Log:
Improve memcpy. It was working correctly, but it wasted a cycle. ;-)

Modified:
    trunk/reactos/lib/sdk/crt/mem/i386/memcpy_asm.s

Modified: trunk/reactos/lib/sdk/crt/mem/i386/memcpy_asm.s
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/sdk/crt/mem/i386/memcp…
==============================================================================
--- trunk/reactos/lib/sdk/crt/mem/i386/memcpy_asm.s [iso-8859-1] (original)
+++ trunk/reactos/lib/sdk/crt/mem/i386/memcpy_asm.s [iso-8859-1] Sun Sep 28 16:50:05 2008
@@ -23,13 +23,12 @@
 /*
  *  Make the destination dword aligned
  */
-        mov	%edi,%ecx
-        and	$3,%ecx
-        sub	$5,%ecx
-        not	%ecx
-        sub	%ecx,%edx
-        rep	movsb
-        mov	%edx,%ecx	
+	mov	%edi,%ecx
+	neg %ecx
+	and	$3,%ecx
+	sub	%ecx,%edx
+	rep	movsb
+	mov	%edx,%ecx	
 .L2:
 	shr	$2,%ecx
 	rep	movsl