50 lines
1.6 KiB
ArmAsm
50 lines
1.6 KiB
ArmAsm
/* $NetBSD: byte_swap_4.S,v 1.2 1999/02/01 21:35:36 matthias Exp $ */
|
|
|
|
/*
|
|
* Mach Operating System
|
|
* Copyright (c) 1992 Carnegie Mellon University
|
|
* Copyright (c) 1992 Helsinki University of Technology
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
* documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON AND HELSINKI UNIVERSITY OF TECHNOLOGY ALLOW FREE USE
|
|
* OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON AND
|
|
* HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIM ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie Mellon
|
|
* the rights to redistribute these changes.
|
|
*/
|
|
/*
|
|
* HISTORY
|
|
* 11-May-92 Johannes Helander (jvh) at Helsinki University of Technology
|
|
* Created.
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
|
|
#if defined(LIBC_SCCS)
|
|
RCSID("$NetBSD: byte_swap_4.S,v 1.2 1999/02/01 21:35:36 matthias Exp $")
|
|
#endif
|
|
|
|
KENTRY(bswap32, 4)
|
|
movd S_ARG0,r0
|
|
rotw 8,r0
|
|
rotd 16,r0
|
|
rotw 8,r0
|
|
ret ARGS
|
|
ALTENTRY(ntohl,bswap32)
|
|
ALTENTRY(htonl,bswap32)
|