sys/lib/libkern/milieu.h

   1 /* $NetBSD: milieu.h,v 1.2 2003/04/22 15:10:04 christos 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 #if !defined(_KERNEL) && !defined(_STANDALONE)
  62 #include <inttypes.h>
  63 #else
  64 #include <sys/inttypes.h>
  65 #endif
  66
  67 #include <sys/endian.h>
  68
  69 /*
  70 -------------------------------------------------------------------------------
  71 One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
  72 -------------------------------------------------------------------------------
  73 */
  74
  75 #if _BYTE_ORDER == _LITTLE_ENDIAN
  76 #define LITTLEENDIAN
  77 #else
  78 #define BIGENDIAN
  79 #endif
  80
  81 #define BITS64
  82
  83 /*
  84 -------------------------------------------------------------------------------
  85 Each of the following `typedef's defines the most convenient type that holds
  86 integers of at least as many bits as specified.  For example, `uint8' should
  87 be the most convenient type that can hold unsigned integers of as many as
  88 8 bits.  The `flag' type must be able to hold either a 0 or 1.  For most
  89 implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
  90 to the same as `int'.
  91 -------------------------------------------------------------------------------
  92 */
  93 typedef int flag;
  94 typedef unsigned int uint8;
  95 typedef signed int int8;
  96 typedef unsigned int uint16;
  97 typedef int int16;
  98 typedef unsigned int uint32;
  99 typedef signed int int32;
 100 #ifdef BITS64
 101 typedef uint64_t uint64;
 102 typedef int64_t int64;
 103 #endif
 104
 105 /*
 106 -------------------------------------------------------------------------------
 107 Each of the following `typedef's defines a type that holds integers
 108 of _exactly_ the number of bits specified.  For instance, for most
 109 implementation of C, `bits16' and `sbits16' should be `typedef'ed to
 110 `unsigned short int' and `signed short int' (or `short int'), respectively.
 111 -------------------------------------------------------------------------------
 112 */
 113 typedef uint8_t bits8;
 114 typedef int8_t sbits8;
 115 typedef uint16_t bits16;
 116 typedef int16_t sbits16;
 117 typedef uint32_t bits32;
 118 typedef int32_t sbits32;
 119 #ifdef BITS64
 120 typedef uint64_t bits64;
 121 typedef int64_t sbits64;
 122 #endif
 123
 124 #ifdef BITS64
 125 /*
 126 -------------------------------------------------------------------------------
 127 The `LIT64' macro takes as its argument a textual integer literal and
 128 if necessary ``marks'' the literal as having a 64-bit integer type.
 129 For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
 130 appended with the letters `LL' standing for `long long', which is `gcc's
 131 name for the 64-bit integer type.  Some compilers may allow `LIT64' to be
 132 defined as the identity macro:  `#define LIT64( a ) a'.
 133 -------------------------------------------------------------------------------
 134 */
 135 #define LIT64( a ) a##LL
 136 #endif
 137
 138 /*
 139 -------------------------------------------------------------------------------
 140 The macro `INLINE' can be used before functions that should be inlined.  If
 141 a compiler does not support explicit inlining, this macro should be defined
 142 to be `static'.
 143 -------------------------------------------------------------------------------
 144 */
 145 #define INLINE static inline
 146
 147 #endif