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/* $FreeBSD: release/9.1.0/sys/libkern/ia64/byte_swap_4.S 139815 2005-01-07 00:24:33Z imp $ */ /* $NetBSD: byte_swap_4.S,v 1.2 1996/10/17 03:08:09 cgd Exp $ */ /*- * Copyright (c) 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * 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 ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS 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 the * rights to redistribute these changes. */ #include <machine/asm.h> #ifndef NAME #error NAME not defined #endif /* * Byte-swap a 4-byte quantity. (Convert 0x01234567 to 0x67452301.) * * Argument is an unsigned 4-byte integer (u_int32_t). */ ENTRY(NAME, 1) mux1 r16=in0,@rev ;; extr.u r8=r16,32,32 br.ret.sptk.few rp END(NAME)