1 /* $NetBSD: milieu.h,v 1.4 2008/04/28 20:23:04 martin 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 =============================================================================== 36 37 This C header file is part of TestFloat, Release 2a, a package of programs 38 for testing the correctness of floating-point arithmetic complying to the 39 IEC/IEEE Standard for Floating-Point. 40 41 Written by John R. Hauser. More information is available through the Web 42 page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'. 43 44 THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort 45 has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT 46 TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO 47 PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY 48 AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. 49 50 Derivative works are acceptable, even for commercial purposes, so long as 51 (1) they include prominent notice that the work is derivative, and (2) they 52 include prominent notice akin to these four paragraphs for those parts of 53 this code that are retained. 54 55 =============================================================================== 56 */ 57 58 #ifndef MILIEU_H 59 #define MILIEU_H 60 61 #include <inttypes.h> 62 #include <sys/endian.h> 63 64 enum { 65 FALSE = 0, 66 TRUE = 1 67 }; 68 69 70 /* 71 ------------------------------------------------------------------------------- 72 One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined. 73 ------------------------------------------------------------------------------- 74 */ 75 76 #if _BYTE_ORDER == _LITTLE_ENDIAN 77 #define LITTLEENDIAN 78 #else 79 #define BIGENDIAN 80 #endif 81 82 #define BITS64 83 84 /* 85 ------------------------------------------------------------------------------- 86 Each of the following `typedef's defines the most convenient type that holds 87 integers of at least as many bits as specified. For example, `uint8' should 88 be the most convenient type that can hold unsigned integers of as many as 89 8 bits. The `flag' type must be able to hold either a 0 or 1. For most 90 implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed 91 to the same as `int'. 92 ------------------------------------------------------------------------------- 93 */ 94 typedef int flag; 95 typedef unsigned int uint8; 96 typedef signed int int8; 97 typedef unsigned int uint16; 98 typedef int int16; 99 typedef unsigned int uint32; 100 typedef signed int int32; 101 #ifdef BITS64 102 typedef uint64_t uint64; 103 typedef int64_t int64; 104 #endif 105 106 /* 107 ------------------------------------------------------------------------------- 108 Each of the following `typedef's defines a type that holds integers 109 of _exactly_ the number of bits specified. For instance, for most 110 implementation of C, `bits16' and `sbits16' should be `typedef'ed to 111 `unsigned short int' and `signed short int' (or `short int'), respectively. 112 ------------------------------------------------------------------------------- 113 */ 114 typedef uint8_t bits8; 115 typedef int8_t sbits8; 116 typedef uint16_t bits16; 117 typedef int16_t sbits16; 118 typedef uint32_t bits32; 119 typedef int32_t sbits32; 120 #ifdef BITS64 121 typedef uint64_t bits64; 122 typedef int64_t sbits64; 123 #endif 124 125 #ifdef BITS64 126 /* 127 ------------------------------------------------------------------------------- 128 The `LIT64' macro takes as its argument a textual integer literal and 129 if necessary ``marks'' the literal as having a 64-bit integer type. 130 For example, the GNU C Compiler (`gcc') requires that 64-bit literals be 131 appended with the letters `LL' standing for `long long', which is `gcc's 132 name for the 64-bit integer type. Some compilers may allow `LIT64' to be 133 defined as the identity macro: `#define LIT64( a ) a'. 134 ------------------------------------------------------------------------------- 135 */ 136 #define LIT64( a ) a##LL 137 #endif 138 139 /* 140 ------------------------------------------------------------------------------- 141 The macro `INLINE' can be used before functions that should be inlined. If 142 a compiler does not support explicit inlining, this macro should be defined 143 to be `static'. 144 ------------------------------------------------------------------------------- 145 */ 146 #define INLINE static inline 147 148 #endif 149