1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29union IEEEl2bits {
30	long double	e;
31	struct {
32		unsigned int	manl	:32;
33		unsigned int	manh	:32;
34		unsigned int	exp	:15;
35		unsigned int	sign	:1;
36		unsigned int	junk	:16;
37	} bits;
38	struct {
39		unsigned long long man	:64;
40		unsigned int 	expsign	:16;
41		unsigned int	junk	:16;
42	} xbits;
43};
44
45#define	LDBL_NBIT	0x80000000
46#define	mask_nbit_l(u)	((u).bits.manh &= ~LDBL_NBIT)
47
48#define	LDBL_MANH_SIZE	32
49#define	LDBL_MANL_SIZE	32
50
51#define	LDBL_TO_ARRAY32(u, a) do {			\
52	(a)[0] = (uint32_t)(u).bits.manl;		\
53	(a)[1] = (uint32_t)(u).bits.manh;		\
54} while (0)
55