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 * Shift an (unsigned) quad value right (logical shift right).
38df930be7Sderaadt */
39df930be7Sderaadt quad_t
__lshrdi3(quad_t a,qshift_t shift)40a26aa419Sderaadt __lshrdi3(quad_t a, qshift_t shift)
41df930be7Sderaadt {
42df930be7Sderaadt union uu aa;
43df930be7Sderaadt
44f6a3c9b1Smickey if (shift == 0)
45f6a3c9b1Smickey return(a);
46df930be7Sderaadt aa.q = a;
47f6a3c9b1Smickey if (shift >= INT_BITS) {
48f6a3c9b1Smickey aa.ul[L] = aa.ul[H] >> (shift - INT_BITS);
49df930be7Sderaadt aa.ul[H] = 0;
50f6a3c9b1Smickey } else {
51df930be7Sderaadt aa.ul[L] = (aa.ul[L] >> shift) |
52f6a3c9b1Smickey (aa.ul[H] << (INT_BITS - shift));
53df930be7Sderaadt aa.ul[H] >>= shift;
54df930be7Sderaadt }
55df930be7Sderaadt return (aa.q);
56df930be7Sderaadt }
57*7c39eed1Sjsg
58*7c39eed1Sjsg #ifdef __ARM_EABI__
59*7c39eed1Sjsg __strong_alias(__aeabi_llsr, __lshrdi3);
60*7c39eed1Sjsg #endif
61