1 /* $NetBSD: milieu.h,v 1.3 2002/02/21 07:38:16 itojun Exp $ */ 2 3 /* This is a derivative work. */ 4 5 /*- 6 * Copyright (c) 2001 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Ross Harvey. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 =============================================================================== 43 44 This C header file is part of TestFloat, Release 2a, a package of programs 45 for testing the correctness of floating-point arithmetic complying to the 46 IEC/IEEE Standard for Floating-Point. 47 48 Written by John R. Hauser. More information is available through the Web 49 page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'. 50 51 THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort 52 has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT 53 TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO 54 PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY 55 AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. 56 57 Derivative works are acceptable, even for commercial purposes, so long as 58 (1) they include prominent notice that the work is derivative, and (2) they 59 include prominent notice akin to these four paragraphs for those parts of 60 this code that are retained. 61 62 =============================================================================== 63 */ 64 65 #ifndef MILIEU_H 66 #define MILIEU_H 67 68 #include <inttypes.h> 69 #include <sys/endian.h> 70 71 enum { 72 FALSE = 0, 73 TRUE = 1 74 }; 75 76 77 /* 78 ------------------------------------------------------------------------------- 79 One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined. 80 ------------------------------------------------------------------------------- 81 */ 82 83 #if _BYTE_ORDER == _LITTLE_ENDIAN 84 #define LITTLEENDIAN 85 #else 86 #define BIGENDIAN 87 #endif 88 89 #define BITS64 90 91 /* 92 ------------------------------------------------------------------------------- 93 Each of the following `typedef's defines the most convenient type that holds 94 integers of at least as many bits as specified. For example, `uint8' should 95 be the most convenient type that can hold unsigned integers of as many as 96 8 bits. The `flag' type must be able to hold either a 0 or 1. For most 97 implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 98 to the same as `int'. 99 ------------------------------------------------------------------------------- 100 */ 101 typedef int flag; 102 typedef unsigned int uint8; 103 typedef signed int int8; 104 typedef unsigned int uint16; 105 typedef int int16; 106 typedef unsigned int uint32; 107 typedef signed int int32; 108 #ifdef BITS64 109 typedef uint64_t uint64; 110 typedef int64_t int64; 111 #endif 112 113 /* 114 ------------------------------------------------------------------------------- 115 Each of the following `typedef's defines a type that holds integers 116 of _exactly_ the number of bits specified. For instance, for most 117 implementation of C, `bits16' and `sbits16' should be `typedef'ed to 118 `unsigned short int' and `signed short int' (or `short int'), respectively. 119 ------------------------------------------------------------------------------- 120 */ 121 typedef uint8_t bits8; 122 typedef int8_t sbits8; 123 typedef uint16_t bits16; 124 typedef int16_t sbits16; 125 typedef uint32_t bits32; 126 typedef int32_t sbits32; 127 #ifdef BITS64 128 typedef uint64_t bits64; 129 typedef int64_t sbits64; 130 #endif 131 132 #ifdef BITS64 133 /* 134 ------------------------------------------------------------------------------- 135 The `LIT64' macro takes as its argument a textual integer literal and 136 if necessary ``marks'' the literal as having a 64-bit integer type. 137 For example, the GNU C Compiler (`gcc') requires that 64-bit literals be 138 appended with the letters `LL' standing for `long long', which is `gcc's 139 name for the 64-bit integer type. Some compilers may allow `LIT64' to be 140 defined as the identity macro: `#define LIT64( a ) a'. 141 ------------------------------------------------------------------------------- 142 */ 143 #define LIT64( a ) a##LL 144 #endif 145 146 /* 147 ------------------------------------------------------------------------------- 148 The macro `INLINE' can be used before functions that should be inlined. If 149 a compiler does not support explicit inlining, this macro should be defined 150 to be `static'. 151 ------------------------------------------------------------------------------- 152 */ 153 #define INLINE static inline 154 155 #endif 156