/* * Copyright (c) 2003, 2008 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /*- * Copyright (c) 2002, 2003 David Schultz <dschultz@uclink.Berkeley.EDU> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/lib/libc/i386/_fpmath.h,v 1.3 2004/01/18 07:57:01 das Exp $ */ #if defined(__i386__) || defined(__x86_64__) union IEEEl2bits { long double e; struct { unsigned int manl :32; unsigned int manh :32; unsigned int exp :15; unsigned int sign :1; unsigned int junk :16; } bits; }; #define mask_nbit_l(u) ((u).bits.manh &= 0x7fffffff) #define LDBL_MANH_SIZE 32 #define LDBL_MANL_SIZE 32 #define LDBL_TO_ARRAY32(u, a) do { \ (a)[0] = (uint32_t)(u).bits.manl; \ (a)[1] = (uint32_t)(u).bits.manh; \ } while(0) #elif defined(__arm__) union IEEEl2bits { long double e; struct { #ifndef __ARMEB__ unsigned int manl :32; unsigned int manh :20; unsigned int exp :11; unsigned int sign :1; #else unsigned int sign :1; unsigned int exp :11; unsigned int manh :20; unsigned int manl :32; #endif } bits; }; #define LDBL_NBIT 0 #define mask_nbit_l(u) ((void)0) #define LDBL_MANH_SIZE 20 #define LDBL_MANL_SIZE 32 #define LDBL_TO_ARRAY32(u, a) do { \ (a)[0] = (uint32_t)(u).bits.manl; \ (a)[1] = (uint32_t)(u).bits.manh; \ } while(0) #else #error unsupported architecture #endif