Module Name: src
Committed By: matt
Date: Mon Jul 22 03:37:17 UTC 2013
Modified Files:
src/sys/arch/m68k/m68k: oc_cksum.s
Log Message:
use mvz[wb] when possible
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/m68k/m68k/oc_cksum.s
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/m68k/m68k/oc_cksum.s
diff -u src/sys/arch/m68k/m68k/oc_cksum.s:1.7 src/sys/arch/m68k/m68k/oc_cksum.s:1.8
--- src/sys/arch/m68k/m68k/oc_cksum.s:1.7 Mon Jul 22 03:30:38 2013
+++ src/sys/arch/m68k/m68k/oc_cksum.s Mon Jul 22 03:37:17 2013
@@ -1,4 +1,4 @@
-| $NetBSD: oc_cksum.s,v 1.7 2013/07/22 03:30:38 matt Exp $
+| $NetBSD: oc_cksum.s,v 1.8 2013/07/22 03:37:17 matt Exp $
| Copyright (c) 1988 Regents of the University of California.
| All rights reserved.
@@ -194,19 +194,31 @@ L5: | deal with 1 or 3 excess bytes at t
jeq L6 | if 1 excess
| 3 bytes excess
+#ifdef __mcoldfire__
+ mvzw (-3,%a0,%d1:l),%d2 | add in last full word then drop
+#else
clrl %d2
movw (-3,%a0,%d1:l),%d2 | add in last full word then drop
+#endif
addl %d2,%d0 | through to pick up last byte
L6: | 1 byte excess
+#ifdef __mcoldfire__
+ mvzb (-1,%a0,%d1:l),%d2
+#else
clrl %d2
movb (-1,%a0,%d1:l),%d2
+#endif
lsll #8,%d2
addl %d2,%d0
jra L1
L7: | 2 bytes excess
+#ifdef __mcoldfire__
+ mvzw (-2,%a0,%d1:l),%d2
+#else
clrl %d2
movw (-2,%a0,%d1:l),%d2
+#endif
addl %d2,%d0
jra L1
