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 59