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authorJesper Nilsson <jesper.nilsson@axis.com>2008-01-21 14:10:33 +0100
committerJesper Nilsson <jesper.nilsson@axis.com>2008-02-08 11:06:32 +0100
commitab59284eaeb9560926ef5f0a233d91ecb4e64e1a (patch)
treeac2256bf405336411350fbe6eae8905e0c059f22 /arch/cris
parent2afab729f599af4aa7a6e737b20bc43a4fdff69e (diff)
CRIS v10: Remove duplicated folding of carry from lib/checksumcopy.S, it is not needed.
Also, remove useless CVS id tag.
Diffstat (limited to 'arch/cris')
-rw-r--r--arch/cris/arch-v10/lib/checksumcopy.S8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/cris/arch-v10/lib/checksumcopy.S b/arch/cris/arch-v10/lib/checksumcopy.S
index 35cbffb306f..540db8a5f84 100644
--- a/arch/cris/arch-v10/lib/checksumcopy.S
+++ b/arch/cris/arch-v10/lib/checksumcopy.S
@@ -1,4 +1,4 @@
-/* $Id: checksumcopy.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
+/*
* A fast checksum+copy routine using movem
* Copyright (c) 1998, 2001 Axis Communications AB
*
@@ -67,8 +67,6 @@ _mloop: movem [$r10+],$r9 ; read 10 longwords
ax
addq 0,$r13
- ax ; do it again, since we might have generated a carry
- addq 0,$r13
subq 10*4,$r12
bge _mloop
@@ -91,10 +89,6 @@ _word_loop:
lsrq 16,$r9 ; r0 = checksum >> 16
and.d 0xffff,$r13 ; checksum = checksum & 0xffff
add.d $r9,$r13 ; checksum += r0
- move.d $r13,$r9 ; do the same again, maybe we got a carry last add
- lsrq 16,$r9
- and.d 0xffff,$r13
- add.d $r9,$r13
_no_fold:
cmpq 2,$r12