1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2003 Mike Barcroft <[email protected]> 5 * Copyright (c) 2002, 2003 David Schultz <[email protected]> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 union IEEEl2bits { 33 long double e; 34 struct { 35 unsigned int sign :1; 36 unsigned int exp :15; 37 unsigned long manh :48; 38 unsigned long manl :64; 39 } bits; 40 struct { 41 unsigned int expsign :16; 42 unsigned long manh :48; 43 unsigned long manl :64; 44 } xbits; 45 }; 46 47 #define mask_nbit_l(u) ((void)0) 48 #define LDBL_IMPLICIT_NBIT 49 #define LDBL_NBIT 0 50 51 #define LDBL_MANH_SIZE 48 52 #define LDBL_MANL_SIZE 64 53 54 #define LDBL_TO_ARRAY32(u, a) do { \ 55 (a)[0] = (uint32_t)(u).bits.manl; \ 56 (a)[1] = (uint32_t)((u).bits.manl >> 32); \ 57 (a)[2] = (uint32_t)(u).bits.manh; \ 58 (a)[3] = (uint32_t)((u).bits.manh >> 32); \ 59 } while(0) 60