1/* $NetBSD: byte_swap_8.S,v 1.1 2009/07/20 11:23:04 kiyohara 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 8-byte quantity. 38 * (Convert 0x0123456789012345 to 0x4523018967452301.) 39 * 40 * Argument is an unsigned 8-byte integer (u_int64_t). 41 */ 42ENTRY(NAME, 1) 43 mux1 r8=in0,@rev 44 br.ret.sptk.few rp 45END(NAME) 46