158f0484fSRodney W. Grimes /*- 2*8a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 3*8a16b7a1SPedro F. Giffuni * 458f0484fSRodney W. Grimes * Copyright (c) 1992, 1993 558f0484fSRodney W. Grimes * The Regents of the University of California. All rights reserved. 658f0484fSRodney W. Grimes * 758f0484fSRodney W. Grimes * This software was developed by the Computer Systems Engineering group 858f0484fSRodney W. Grimes * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 958f0484fSRodney W. Grimes * contributed to Berkeley. 1058f0484fSRodney W. Grimes * 1158f0484fSRodney W. Grimes * Redistribution and use in source and binary forms, with or without 1258f0484fSRodney W. Grimes * modification, are permitted provided that the following conditions 1358f0484fSRodney W. Grimes * are met: 1458f0484fSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 1558f0484fSRodney W. Grimes * notice, this list of conditions and the following disclaimer. 1658f0484fSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 1758f0484fSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 1858f0484fSRodney W. Grimes * documentation and/or other materials provided with the distribution. 19fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 2058f0484fSRodney W. Grimes * may be used to endorse or promote products derived from this software 2158f0484fSRodney W. Grimes * without specific prior written permission. 2258f0484fSRodney W. Grimes * 2358f0484fSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2458f0484fSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2558f0484fSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2658f0484fSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2758f0484fSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2858f0484fSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2958f0484fSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3058f0484fSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3158f0484fSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3258f0484fSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3358f0484fSRodney W. Grimes * SUCH DAMAGE. 3458f0484fSRodney W. Grimes */ 3558f0484fSRodney W. Grimes 3658f0484fSRodney W. Grimes #if defined(LIBC_SCCS) && !defined(lint) 3758f0484fSRodney W. Grimes static char sccsid[] = "@(#)negdi2.c 8.1 (Berkeley) 6/4/93"; 3858f0484fSRodney W. Grimes #endif /* LIBC_SCCS and not lint */ 39333fc21eSDavid E. O'Brien #include <sys/cdefs.h> 40333fc21eSDavid E. O'Brien __FBSDID("$FreeBSD$"); 4158f0484fSRodney W. Grimes 4258f0484fSRodney W. Grimes #include "quad.h" 4358f0484fSRodney W. Grimes 4458f0484fSRodney W. Grimes /* 4558f0484fSRodney W. Grimes * Return -a (or, equivalently, 0 - a), in quad. See subdi3.c. 4658f0484fSRodney W. Grimes */ 4758f0484fSRodney W. Grimes quad_t 4858f0484fSRodney W. Grimes __negdi2(a) 4958f0484fSRodney W. Grimes quad_t a; 5058f0484fSRodney W. Grimes { 5158f0484fSRodney W. Grimes union uu aa, res; 5258f0484fSRodney W. Grimes 5358f0484fSRodney W. Grimes aa.q = a; 5458f0484fSRodney W. Grimes res.ul[L] = -aa.ul[L]; 5558f0484fSRodney W. Grimes res.ul[H] = -aa.ul[H] - (res.ul[L] > 0); 5658f0484fSRodney W. Grimes return (res.q); 5758f0484fSRodney W. Grimes } 58