158f0484fSRodney W. Grimes /*-
28a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause
38a16b7a1SPedro 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 #include "quad.h"
3758f0484fSRodney W. Grimes
3858f0484fSRodney W. Grimes /*
3958f0484fSRodney W. Grimes * Divide two signed quads.
4058f0484fSRodney W. Grimes * ??? if -1/2 should produce -1 on this machine, this code is wrong
4158f0484fSRodney W. Grimes */
4258f0484fSRodney W. Grimes quad_t
__divdi3(quad_t a,quad_t b)43*6492be46SEd Maste __divdi3(quad_t a, quad_t b)
4458f0484fSRodney W. Grimes {
4558f0484fSRodney W. Grimes u_quad_t ua, ub, uq;
4658f0484fSRodney W. Grimes int neg;
4758f0484fSRodney W. Grimes
4858f0484fSRodney W. Grimes if (a < 0)
4958f0484fSRodney W. Grimes ua = -(u_quad_t)a, neg = 1;
5058f0484fSRodney W. Grimes else
5158f0484fSRodney W. Grimes ua = a, neg = 0;
5258f0484fSRodney W. Grimes if (b < 0)
5358f0484fSRodney W. Grimes ub = -(u_quad_t)b, neg ^= 1;
5458f0484fSRodney W. Grimes else
5558f0484fSRodney W. Grimes ub = b;
5658f0484fSRodney W. Grimes uq = __qdivrem(ua, ub, (u_quad_t *)0);
5758f0484fSRodney W. Grimes return (neg ? -uq : uq);
5858f0484fSRodney W. Grimes }
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