166633Sdfr/* $FreeBSD$ */ 266633Sdfr/* $NetBSD: byte_swap_4.S,v 1.2 1996/10/17 03:08:09 cgd Exp $ */ 366633Sdfr 4139815Simp/*- 566633Sdfr * Copyright (c) 1996 Carnegie-Mellon University. 666633Sdfr * All rights reserved. 766633Sdfr * 866633Sdfr * Author: Chris G. Demetriou 966633Sdfr * 1066633Sdfr * Permission to use, copy, modify and distribute this software and 1166633Sdfr * its documentation is hereby granted, provided that both the copyright 1266633Sdfr * notice and this permission notice appear in all copies of the 1366633Sdfr * software, derivative works or modified versions, and any portions 1466633Sdfr * thereof, and that both notices appear in supporting documentation. 1566633Sdfr * 1666633Sdfr * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 1766633Sdfr * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 1866633Sdfr * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 1966633Sdfr * 2066633Sdfr * Carnegie Mellon requests users of this software to return to 2166633Sdfr * 2266633Sdfr * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 2366633Sdfr * School of Computer Science 2466633Sdfr * Carnegie Mellon University 2566633Sdfr * Pittsburgh PA 15213-3890 2666633Sdfr * 2766633Sdfr * any improvements or extensions that they make and grant Carnegie the 2866633Sdfr * rights to redistribute these changes. 2966633Sdfr */ 3066633Sdfr 3166633Sdfr#include <machine/asm.h> 3266633Sdfr 3391394Stmm#ifndef NAME 3491394Stmm#error NAME not defined 3566633Sdfr#endif 3666633Sdfr 3766633Sdfr/* 3866633Sdfr * Byte-swap a 4-byte quantity. (Convert 0x01234567 to 0x67452301.) 3966633Sdfr * 4066633Sdfr * Argument is an unsigned 4-byte integer (u_int32_t). 4166633Sdfr */ 4284579SdfrENTRY(NAME, 1) 4384579Sdfr mux1 r16=in0,@rev 4466633Sdfr ;; 4584579Sdfr extr.u r8=r16,32,32 4666633Sdfr br.ret.sptk.few rp 4766633SdfrEND(NAME) 48