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 *
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
37This C header file is part of TestFloat, Release 2a, a package of programs
38for testing the correctness of floating-point arithmetic complying to the
39IEC/IEEE Standard for Floating-Point.
40
41Written by John R. Hauser.  More information is available through the Web
42page `http://HTTP.CS.Berkeley.EDU/~jhauser/arithmetic/TestFloat.html'.
43
44THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE.  Although reasonable effort
45has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT
46TIMES RESULT IN INCORRECT BEHAVIOR.  USE OF THIS SOFTWARE IS RESTRICTED TO
47PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY
48AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE.
49
50Derivative works are acceptable, even for commercial purposes, so long as
51(1) they include prominent notice that the work is derivative, and (2) they
52include prominent notice akin to these four paragraphs for those parts of
53this 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
64enum {
65    FALSE = 0,
66    TRUE  = 1
67};
68
69
70/*
71-------------------------------------------------------------------------------
72One 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-------------------------------------------------------------------------------
86Each of the following `typedef's defines the most convenient type that holds
87integers of at least as many bits as specified.  For example, `uint8' should
88be the most convenient type that can hold unsigned integers of as many as
898 bits.  The `flag' type must be able to hold either a 0 or 1.  For most
90implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
91to the same as `int'.
92-------------------------------------------------------------------------------
93*/
94typedef int flag;
95typedef unsigned int uint8;
96typedef signed int int8;
97typedef unsigned int uint16;
98typedef int int16;
99typedef unsigned int uint32;
100typedef signed int int32;
101#ifdef BITS64
102typedef uint64_t uint64;
103typedef int64_t int64;
104#endif
105
106/*
107-------------------------------------------------------------------------------
108Each of the following `typedef's defines a type that holds integers
109of _exactly_ the number of bits specified.  For instance, for most
110implementation of C, `bits16' and `sbits16' should be `typedef'ed to
111`unsigned short int' and `signed short int' (or `short int'), respectively.
112-------------------------------------------------------------------------------
113*/
114typedef uint8_t bits8;
115typedef int8_t sbits8;
116typedef uint16_t bits16;
117typedef int16_t sbits16;
118typedef uint32_t bits32;
119typedef int32_t sbits32;
120#ifdef BITS64
121typedef uint64_t bits64;
122typedef int64_t sbits64;
123#endif
124
125#ifdef BITS64
126/*
127-------------------------------------------------------------------------------
128The `LIT64' macro takes as its argument a textual integer literal and
129if necessary ``marks'' the literal as having a 64-bit integer type.
130For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
131appended with the letters `LL' standing for `long long', which is `gcc's
132name for the 64-bit integer type.  Some compilers may allow `LIT64' to be
133defined as the identity macro:  `#define LIT64( a ) a'.
134-------------------------------------------------------------------------------
135*/
136#define LIT64( a ) a##LL
137#endif
138
139/*
140-------------------------------------------------------------------------------
141The macro `INLINE' can be used before functions that should be inlined.  If
142a compiler does not support explicit inlining, this macro should be defined
143to be `static'.
144-------------------------------------------------------------------------------
145*/
146#define INLINE static inline
147
148#endif
149