1df930be7Sderaadt /*-
2df930be7Sderaadt * Copyright (c) 1992, 1993
3df930be7Sderaadt * The Regents of the University of California. All rights reserved.
4df930be7Sderaadt *
5df930be7Sderaadt * This software was developed by the Computer Systems Engineering group
6df930be7Sderaadt * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
7df930be7Sderaadt * contributed to Berkeley.
8df930be7Sderaadt *
9df930be7Sderaadt * Redistribution and use in source and binary forms, with or without
10df930be7Sderaadt * modification, are permitted provided that the following conditions
11df930be7Sderaadt * are met:
12df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright
13df930be7Sderaadt * notice, this list of conditions and the following disclaimer.
14df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright
15df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the
16df930be7Sderaadt * documentation and/or other materials provided with the distribution.
1729295d1cSmillert * 3. Neither the name of the University nor the names of its contributors
18df930be7Sderaadt * may be used to endorse or promote products derived from this software
19df930be7Sderaadt * without specific prior written permission.
20df930be7Sderaadt *
21df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31df930be7Sderaadt * SUCH DAMAGE.
32df930be7Sderaadt */
33df930be7Sderaadt
34df930be7Sderaadt #include "quad.h"
35df930be7Sderaadt
36df930be7Sderaadt /*
37df930be7Sderaadt * Divide two signed quads.
38df930be7Sderaadt * ??? if -1/2 should produce -1 on this machine, this code is wrong
39df930be7Sderaadt */
40df930be7Sderaadt quad_t
__divdi3(quad_t a,quad_t b)41a26aa419Sderaadt __divdi3(quad_t a, quad_t b)
42df930be7Sderaadt {
43df930be7Sderaadt u_quad_t ua, ub, uq;
44*f6a3c9b1Smickey int neg = 0;
45*f6a3c9b1Smickey
46*f6a3c9b1Smickey ua = a;
47*f6a3c9b1Smickey ub = b;
48df930be7Sderaadt
49df930be7Sderaadt if (a < 0)
50*f6a3c9b1Smickey ua = -ua, neg ^= 1;
51df930be7Sderaadt if (b < 0)
52*f6a3c9b1Smickey ub = -ub, neg ^= 1;
53*f6a3c9b1Smickey
54df930be7Sderaadt uq = __qdivrem(ua, ub, (u_quad_t *)0);
55*f6a3c9b1Smickey if (neg)
56*f6a3c9b1Smickey uq = - uq;
57*f6a3c9b1Smickey return uq;
58df930be7Sderaadt }
59