1/*	$NetBSD: byte_swap_2.S,v 1.1 2006/04/07 13:57:43 cherry Exp $	*/
2
3/*-
4 * Copyright (c) 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#include <machine/asm.h>
31
32#ifndef NAME
33#error NAME not defined
34#endif
35
36/*
37 * Byte-swap a 2-byte quantity.  (Convert 0x0123 to 0x2301.)
38 *
39 * Argument is an unsigned 2-byte integer (u_int16_t).
40 */
41ENTRY(NAME, 1)
42	mux1	r16=in0,@rev
43	;;
44	extr.u	r8=r16,48,16
45	br.ret.sptk.few rp
46END(NAME)
47