projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| 17030342 | 1 | /*- |
| 5e240be9 | 2 | * Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG> |
| 17030342 MD |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * | |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 24 | * SUCH DAMAGE. | |
| 25 | * | |
| 5e240be9 | 26 | * $FreeBSD: src/lib/libc/amd64/_fpmath.h,v 1.7 2008/01/17 16:39:06 bde Exp $ |
| 17030342 MD |
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 junkl :16; | |
| 37 | unsigned int junkh :32; | |
| 38 | } bits; | |
| 5e240be9 PA |
39 | struct { |
| 40 | unsigned long man :64; | |
| 41 | unsigned int expsign :16; | |
| 42 | unsigned long junk :48; | |
| 43 | } xbits; | |
| 17030342 MD |
44 | }; |
| 45 | ||
| 5e240be9 PA |
46 | #define LDBL_NBIT 0x80000000 |
| 47 | #define mask_nbit_l(u) ((u).bits.manh &= ~LDBL_NBIT) | |
| 17030342 MD |
48 | |
| 49 | #define LDBL_MANH_SIZE 32 | |
| 50 | #define LDBL_MANL_SIZE 32 | |
| 51 | ||
| 52 | #define LDBL_TO_ARRAY32(u, a) do { \ | |
| 53 | (a)[0] = (uint32_t)(u).bits.manl; \ | |
| 54 | (a)[1] = (uint32_t)(u).bits.manh; \ | |
| 5e240be9 | 55 | } while (0) |