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 29 union 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