NetBSD/sys/lib/libkern/arch/ns32k/byte_swap_2.S

48 lines
1.5 KiB
ArmAsm

/* $NetBSD: byte_swap_2.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_2.S,v 1.2 1999/02/01 21:35:36 matthias Exp $")
#endif
KENTRY(bswap16, 4)
movzwd S_ARG0,r0
rotw 8,r0
ret ARGS
ALTENTRY(ntohs,bswap16)
ALTENTRY(htons,bswap16)