xref: /openbsd/sys/lib/libkern/xordi3.c (revision 29295d1c)
1*29295d1cSmillert /*	$OpenBSD: xordi3.c,v 1.3 2003/06/02 23:28:08 millert Exp $	*/
2df930be7Sderaadt /*	$NetBSD: xordi3.c,v 1.5 1995/10/07 09:26:56 mycroft Exp $	*/
3df930be7Sderaadt 
4df930be7Sderaadt /*-
5df930be7Sderaadt  * Copyright (c) 1992, 1993
6df930be7Sderaadt  *	The Regents of the University of California.  All rights reserved.
7df930be7Sderaadt  *
8df930be7Sderaadt  * This software was developed by the Computer Systems Engineering group
9df930be7Sderaadt  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10df930be7Sderaadt  * contributed to Berkeley.
11df930be7Sderaadt  *
12df930be7Sderaadt  * Redistribution and use in source and binary forms, with or without
13df930be7Sderaadt  * modification, are permitted provided that the following conditions
14df930be7Sderaadt  * are met:
15df930be7Sderaadt  * 1. Redistributions of source code must retain the above copyright
16df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer.
17df930be7Sderaadt  * 2. Redistributions in binary form must reproduce the above copyright
18df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer in the
19df930be7Sderaadt  *    documentation and/or other materials provided with the distribution.
20*29295d1cSmillert  * 3. Neither the name of the University nor the names of its contributors
21df930be7Sderaadt  *    may be used to endorse or promote products derived from this software
22df930be7Sderaadt  *    without specific prior written permission.
23df930be7Sderaadt  *
24df930be7Sderaadt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25df930be7Sderaadt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26df930be7Sderaadt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27df930be7Sderaadt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28df930be7Sderaadt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29df930be7Sderaadt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30df930be7Sderaadt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31df930be7Sderaadt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32df930be7Sderaadt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33df930be7Sderaadt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34df930be7Sderaadt  * SUCH DAMAGE.
35df930be7Sderaadt  */
36df930be7Sderaadt 
37df930be7Sderaadt #if defined(LIBC_SCCS) && !defined(lint)
38df930be7Sderaadt #if 0
39df930be7Sderaadt static char sccsid[] = "@(#)xordi3.c	8.1 (Berkeley) 6/4/93";
40df930be7Sderaadt #else
41*29295d1cSmillert static char rcsid[] = "$OpenBSD: xordi3.c,v 1.3 2003/06/02 23:28:08 millert Exp $";
42df930be7Sderaadt #endif
43df930be7Sderaadt #endif /* LIBC_SCCS and not lint */
44df930be7Sderaadt 
45df930be7Sderaadt #include "quad.h"
46df930be7Sderaadt 
47df930be7Sderaadt /*
48df930be7Sderaadt  * Return a ^ b, in quad.
49df930be7Sderaadt  */
50df930be7Sderaadt quad_t
51df930be7Sderaadt __xordi3(a, b)
52df930be7Sderaadt 	quad_t a, b;
53df930be7Sderaadt {
54df930be7Sderaadt 	union uu aa, bb;
55df930be7Sderaadt 
56df930be7Sderaadt 	aa.q = a;
57df930be7Sderaadt 	bb.q = b;
58df930be7Sderaadt 	aa.ul[0] ^= bb.ul[0];
59df930be7Sderaadt 	aa.ul[1] ^= bb.ul[1];
60df930be7Sderaadt 	return (aa.q);
61df930be7Sderaadt }
62