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

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Also, remove useless CVS id tag.
This commit is contained in:
Jesper Nilsson 2008-01-21 14:11:22 +01:00
parent ab59284eae
commit 9bf79539ed
1 changed files with 1 additions and 7 deletions
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8
arch/cris/arch-v10/lib/checksum.S
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@ -1,4 +1,4 @@
/* $Id: checksum.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $ /*
* A fast checksum routine using movem * A fast checksum routine using movem
* Copyright (c) 1998-2001 Axis Communications AB * Copyright (c) 1998-2001 Axis Communications AB
* *
@ -61,8 +61,6 @@ _mloop: movem [$r10+],$r9 ; read 10 longwords
ax ax
addq 0,$r12 addq 0,$r12
ax ; do it again, since we might have generated a carry
addq 0,$r12
subq 10*4,$r11 subq 10*4,$r11
bge _mloop bge _mloop
@ -88,10 +86,6 @@ _word_loop:
lsrq 16,$r13 ; r13 = checksum >> 16 lsrq 16,$r13 ; r13 = checksum >> 16
and.d $r9,$r12 ; checksum = checksum & 0xffff and.d $r9,$r12 ; checksum = checksum & 0xffff
add.d $r13,$r12 ; checksum += r13 add.d $r13,$r12 ; checksum += r13
move.d $r12,$r13 ; do the same again, maybe we got a carry last add
lsrq 16,$r13
and.d $r9,$r12
add.d $r13,$r12
_no_fold: _no_fold:
cmpq 2,$r11 cmpq 2,$r11