| Shin-ichiro KAWASAKI | d87945b | 2009-08-31 16:25:42 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 Android Open Source Project, All rights reserved. |
| 3 | * Derived from "bionic/libm/arm/_fpmath.h" |
| 4 | * Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG> |
| 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 | * * Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * * Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in |
| 13 | * the documentation and/or other materials provided with the |
| 14 | * distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 19 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 20 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 22 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 23 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 24 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 25 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 26 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * Assumes that 'long double' on SH-linux is just an alias for 'double'. |
| 32 | */ |
| 33 | union IEEEl2bits { |
| 34 | long double e; |
| 35 | struct { |
| 36 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
| 37 | unsigned int manl :32; |
| 38 | unsigned int manh :20; |
| 39 | unsigned int exp :11; |
| 40 | unsigned int sign :1; |
| 41 | #elif __BYTE_ORDER == __BIG_ENDIAN |
| 42 | unsigned int sign :1; |
| 43 | unsigned int exp :11; |
| 44 | unsigned int manh :20; |
| 45 | unsigned int manl :32; |
| 46 | #endif |
| 47 | } bits; |
| 48 | }; |
| 49 | |
| 50 | /* |
| 51 | * LDBL_NBIT is a mask indicating the position of the integer |
| 52 | * bit in a long double. But SH4 does not support it. |
| 53 | */ |
| 54 | #define LDBL_NBIT 0 |
| 55 | #define mask_nbit_l(u) ((void)0) |
| 56 | |
| 57 | #define LDBL_MANH_SIZE 20 |
| 58 | #define LDBL_MANL_SIZE 32 |