Misc cleanups and CVS surgery. Move a number of header and source files
[dragonfly.git] / sys / cpu / i386 / include / float.h
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1/*
2 * Copyright (c) 1989 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)float.h 7.1 (Berkeley) 5/8/90
34 * $FreeBSD: src/sys/i386/include/float.h,v 1.8 1999/08/28 00:44:11 peter Exp $
88181b08 35 * $DragonFly: src/sys/cpu/i386/include/float.h,v 1.5 2006/11/07 17:51:20 dillon Exp $
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36 */
37
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38#ifndef _CPU_FLOAT_H_
39#define _CPU_FLOAT_H_
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40
41#define FLT_RADIX 2 /* b */
42#define FLT_ROUNDS 1 /* FP addition rounds to nearest */
43
44#define FLT_MANT_DIG 24 /* p */
45#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
46#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
47#define FLT_MIN_EXP (-125) /* emin */
48#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
49#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
50#define FLT_MAX_EXP 128 /* emax */
51#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
52#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
53
54#define DBL_MANT_DIG 53
55#define DBL_EPSILON 2.2204460492503131E-16
56#define DBL_DIG 15
57#define DBL_MIN_EXP (-1021)
58#define DBL_MIN 2.2250738585072014E-308
59#define DBL_MIN_10_EXP (-307)
60#define DBL_MAX_EXP 1024
61#define DBL_MAX 1.7976931348623157E+308
62#define DBL_MAX_10_EXP 308
63
64#define LDBL_MANT_DIG DBL_MANT_DIG
65#define LDBL_EPSILON DBL_EPSILON
66#define LDBL_DIG DBL_DIG
67#define LDBL_MIN_EXP DBL_MIN_EXP
68#define LDBL_MIN DBL_MIN
69#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
70#define LDBL_MAX_EXP DBL_MAX_EXP
71#define LDBL_MAX DBL_MAX
72#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
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73
74#define __GDTOA_IEEE_8087 1
75#define __GDTOA_F_QNAN 0xffc00000
76#define __GDTOA_D_QNAN0 0x0
77#define __GDTOA_D_QNAN1 0xfff80000
78#define __GDTOA_LD_QNAN0 0x0
79#define __GDTOA_LD_QNAN1 0xc0000000
80#define __GDTOA_LD_QNAN2 0xffff
81#define __GDTOA_LD_QNAN3 0x0
82#define __GDTOA_LDUS_QNAN0 0x0
83#define __GDTOA_LDUS_QNAN1 0x0
84#define __GDTOA_LDUS_QNAN2 0x0
85#define __GDTOA_LDUS_QNAN3 0xc000
86#define __GDTOA_LDUS_QNAN4 0xffff
87
88/* #undef __GDTOA_INACCURATE_DIVIDE */
89/* #undef __GDTOA_ROUND_BIASED */
90/* #undef __GDTOA_SUDDEN_UNDERFLOW */
91
88181b08 92#endif /* _CPU_FLOAT_H_ */