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