diff options
| author | Jesper Nilsson <jesper.nilsson@axis.com> | 2008-01-21 14:10:33 +0100 |
|---|---|---|
| committer | Jesper Nilsson <jesper.nilsson@axis.com> | 2008-02-08 11:06:32 +0100 |
| commit | ab59284eaeb9560926ef5f0a233d91ecb4e64e1a (patch) | |
| tree | ac2256bf405336411350fbe6eae8905e0c059f22 | |
| parent | 2afab729f599af4aa7a6e737b20bc43a4fdff69e (diff) | |
CRIS v10: Remove duplicated folding of carry from lib/checksumcopy.S, it is not needed.
Also, remove useless CVS id tag.
| -rw-r--r-- | arch/cris/arch-v10/lib/checksumcopy.S | 8 |
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 |