1/*-
2 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
3 * Copyright (c) 2002 David Schultz <das@FreeBSD.ORG>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: src/lib/libc/include/fpmath.h,v 1.3 2005/02/06 03:23:31 das Exp $
28 */
29
30#include <endian.h>
31#include "_fpmath.h"
32
33union IEEEf2bits {
34	float	f;
35	struct {
36#if __BYTE_ORDER == __LITTLE_ENDIAN
37		unsigned int	man	:23;
38		unsigned int	exp	:8;
39		unsigned int	sign	:1;
40#else /* _BIG_ENDIAN */
41		unsigned int	sign	:1;
42		unsigned int	exp	:8;
43		unsigned int	man	:23;
44#endif
45	} bits;
46};
47
48#define	DBL_MANH_SIZE	20
49#define	DBL_MANL_SIZE	32
50
51union IEEEd2bits {
52	double	d;
53	struct {
54/* #ifdef __ARMEB__ */
55#if (__BYTE_ORDER == __BIG_ENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
56		unsigned int	manh	:20;
57		unsigned int	exp	:11;
58		unsigned int	sign	:1;
59		unsigned int	manl	:32;
60#elif  __BYTE_ORDER == __LITTLE_ENDIAN
61		unsigned int	manl	:32;
62		unsigned int	manh	:20;
63		unsigned int	exp	:11;
64		unsigned int	sign	:1;
65#elif __BYTE_ORDER == __BIG_ENDIAN
66		unsigned int	sign	:1;
67		unsigned int	exp	:11;
68		unsigned int	manh	:20;
69		unsigned int	manl	:32;
70#endif
71	} bits;
72};
73