From ab59284eaeb9560926ef5f0a233d91ecb4e64e1a Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Mon, 21 Jan 2008 14:10:33 +0100 Subject: CRIS v10: Remove duplicated folding of carry from lib/checksumcopy.S, it is not needed. Also, remove useless CVS id tag. --- arch/cris/arch-v10/lib/checksumcopy.S | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'arch/cris/arch-v10') 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 -- cgit v1.2.3