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byte_swap_4.S revision 1.5 
      1  1.1  bouyer /*
      2  1.1  bouyer  * Copyright (c) 1983, 1993
      3  1.1  bouyer  *	The Regents of the University of California.  All rights reserved.
      4  1.1  bouyer  *
      5  1.1  bouyer  * Redistribution and use in source and binary forms, with or without
      6  1.1  bouyer  * modification, are permitted provided that the following conditions
      7  1.1  bouyer  * are met:
      8  1.1  bouyer  * 1. Redistributions of source code must retain the above copyright
      9  1.1  bouyer  *    notice, this list of conditions and the following disclaimer.
     10  1.1  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     11  1.1  bouyer  *    notice, this list of conditions and the following disclaimer in the
     12  1.1  bouyer  *    documentation and/or other materials provided with the distribution.
     13  1.4     agc  * 3. Neither the name of the University nor the names of its contributors
     14  1.1  bouyer  *    may be used to endorse or promote products derived from this software
     15  1.1  bouyer  *    without specific prior written permission.
     16  1.1  bouyer  *
     17  1.1  bouyer  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     18  1.1  bouyer  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  1.1  bouyer  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  1.1  bouyer  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     21  1.1  bouyer  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  1.1  bouyer  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  1.1  bouyer  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  1.1  bouyer  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  1.1  bouyer  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  1.1  bouyer  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  1.1  bouyer  * SUCH DAMAGE.
     28  1.1  bouyer  */
     29  1.1  bouyer 
     30  1.5    matt #include "DEFS.h"
     31  1.5    matt 
     32  1.1  bouyer #if defined(LIBC_SCCS) && !defined(lint)
     33  1.1  bouyer 	/* .asciz "@(#)htonl.s	8.1 (Berkeley) 6/4/93" */
     34  1.5    matt RCSID("$NetBSD: byte_swap_4.S,v 1.5 2011/01/25 02:38:15 matt Exp $")
     35  1.1  bouyer #endif /* LIBC_SCCS and not lint */
     36  1.1  bouyer 
     37  1.2   ragge ALTENTRY(ntohl)
     38  1.2   ragge ALTENTRY(htonl)
     39  1.1  bouyer ENTRY(__bswap32, 0)
     40  1.3    matt 	rotl	$-8,4(%ap),%r0
     41  1.3    matt 	insv	%r0,$16,$8,%r0
     42  1.3    matt 	movb	7(%ap),%r0
     43  1.1  bouyer 	ret
     44  1.5    matt END(__bswap32)
     45