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Commit ab59284e authored by Jesper Nilsson's avatar Jesper Nilsson
Browse files

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

Also, remove useless CVS id tag.
parent 2afab729

arch/cris/arch-v10/lib/checksumcopy.S

+1 −7
Original line number Diff line number Diff line 
/* $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