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CRIS v10: Remove duplicated folding of carry from lib/checksumcopy.S, it is not needed. 

Also, remove useless CVS id tag.
This commit is contained in:
Jesper Nilsson 2008-01-21 14:10:33 +01:00
parent 2afab729f5
commit ab59284eae
1 changed files with 1 additions and 7 deletions
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8
arch/cris/arch-v10/lib/checksumcopy.S
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@ -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