hppa/string/bcmp.S

1.2      matt /*	$NetBSD: bcmp.S,v 1.2 2003/10/06 05:30:21 matt Exp $	*/
1.1  fredette
1.1  fredette /*	$OpenBSD: bcmp.S,v 1.3 2001/06/04 23:14:02 mickey Exp $	*/
1.1  fredette
1.1  fredette /*
1.1  fredette  * Copyright 1996 1995 by Open Software Foundation, Inc.
1.1  fredette  *              All Rights Reserved
1.1  fredette  *
1.1  fredette  * Permission to use, copy, modify, and distribute this software and
1.1  fredette  * its documentation for any purpose and without fee is hereby granted,
1.1  fredette  * provided that the above copyright notice appears in all copies and
1.1  fredette  * that both the copyright notice and this permission notice appear in
1.1  fredette  * supporting documentation.
1.1  fredette  *
1.1  fredette  * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
1.1  fredette  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
1.1  fredette  * FOR A PARTICULAR PURPOSE.
1.1  fredette  *
1.1  fredette  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
1.1  fredette  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
1.1  fredette  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
1.1  fredette  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
1.1  fredette  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1  fredette  */
1.1  fredette /*
1.1  fredette  *  (c) Copyright 1988 HEWLETT-PACKARD COMPANY
1.1  fredette  *
1.1  fredette  *  To anyone who acknowledges that this file is provided "AS IS"
1.1  fredette  *  without any express or implied warranty:
1.1  fredette  *      permission to use, copy, modify, and distribute this file
1.1  fredette  *  for any purpose is hereby granted without fee, provided that
1.1  fredette  *  the above copyright notice and this notice appears in all
1.1  fredette  *  copies, and that the name of Hewlett-Packard Company not be
1.1  fredette  *  used in advertising or publicity pertaining to distribution
1.1  fredette  *  of the software without specific, written prior permission.
1.1  fredette  *  Hewlett-Packard Company makes no representations about the
1.1  fredette  *  suitability of this software for any purpose.
1.1  fredette  */
1.1  fredette /*
1.1  fredette  * Copyright (c) 1990,1991,1994 The University of Utah and
1.1  fredette  * the Computer Systems Laboratory (CSL).  All rights reserved.
1.1  fredette  *
1.1  fredette  * THE UNIVERSITY OF UTAH AND CSL PROVIDE THIS SOFTWARE IN ITS "AS IS"
1.1  fredette  * CONDITION, AND DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES
1.1  fredette  * WHATSOEVER RESULTING FROM ITS USE.
1.1  fredette  *
1.1  fredette  * CSL requests users of this software to return to csl-dist (at) cs.utah.edu any
1.1  fredette  * improvements that they make and grant CSL redistribution rights.
1.1  fredette  *
1.1  fredette  * 	Utah Hdr: movc.s 1.26 94/12/14
1.1  fredette  */
1.1  fredette
1.1  fredette #include <machine/asm.h>
1.1  fredette
1.1  fredette #ifdef SYSLIBC_SCCS
1.1  fredette 	.text
1.1  fredette 	.asciz "$OpenBSD: bcmp.S,v 1.3 2001/06/04 23:14:02 mickey Exp $"
1.1  fredette 	.align	4
1.1  fredette #endif
1.1  fredette
1.1  fredette /*
1.1  fredette  * int
1.1  fredette  * bcmp(src, dst, count)
1.2      matt  *	vaddr_t	src;
1.2      matt  *	vaddr_t	dst;
1.2      matt  *	size_t	count;
1.1  fredette  */
1.1  fredette LEAF_ENTRY(bcmp)
1.2      matt         comb,>= %r0,%arg2,$bcmp_exit
1.2      matt 	copy	%t1,%t2
1.1  fredette
1.2      matt $bcmp_loop:
1.2      matt 	ldbs,ma	1(%arg0),%t1
1.2      matt 	ldbs,ma	1(%arg1),%t2
1.2      matt 	comb,<>,n %t1,%t2,$bcmp_exit
1.2      matt 	addib,<> -1,%arg2,$bcmp_loop
1.1  fredette 	nop
1.1  fredette
1.2      matt $bcmp_exit:
1.2      matt 	bv	0(%r2)
1.2      matt 	sub	%t1,%t2,%ret0
1.1  fredette
1.1  fredette EXIT(bcmp)
1.1  fredette