1/*	$NetBSD: fpu_emulate.h,v 1.12 2005/12/11 12:17:52 christos Exp $	*/
2
3/*
4 * Copyright (c) 1995 Gordon Ross
5 * Copyright (c) 1995 Ken Nakata
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 * 4. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *      This product includes software developed by Gordon Ross
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef _FPREG_H_
35#define _FPREG_H_
36
37
38/*
39 * MC68881/68882 FPcr bit definitions
40 */
41
42/* fpsr */
43#define FPSR_CCB    0xff000000
44# define FPSR_NEG   0x08000000
45# define FPSR_ZERO  0x04000000
46# define FPSR_INF   0x02000000
47# define FPSR_NAN   0x01000000
48#define FPSR_QTT    0x00ff0000
49# define FPSR_QSG   0x00800000
50# define FPSR_QUO   0x007f0000
51#define FPSR_EXCP   0x0000ff00
52# define FPSR_BSUN  0x00008000
53# define FPSR_SNAN  0x00004000
54# define FPSR_OPERR 0x00002000
55# define FPSR_OVFL  0x00001000
56# define FPSR_UNFL  0x00000800
57# define FPSR_DZ    0x00000400
58# define FPSR_INEX2 0x00000200
59# define FPSR_INEX1 0x00000100
60#define FPSR_AEX    0x000000ff
61# define FPSR_AIOP  0x00000080
62# define FPSR_AOVFL 0x00000040
63# define FPSR_AUNFL 0x00000020
64# define FPSR_ADZ   0x00000010
65# define FPSR_AINEX 0x00000008
66
67/* fpcr */
68#define FPCR_EXCP   FPSR_EXCP
69# define FPCR_BSUN  FPSR_BSUN
70# define FPCR_SNAN  FPSR_SNAN
71# define FPCR_OPERR FPSR_OPERR
72# define FPCR_OVFL  FPSR_OVFL
73# define FPCR_UNFL  FPSR_UNFL
74# define FPCR_DZ    FPSR_DZ
75# define FPCR_INEX2 FPSR_INEX2
76# define FPCR_INEX1 FPSR_INEX1
77#define FPCR_MODE   0x000000ff
78# define FPCR_PREC  0x000000c0
79#  define FPCR_EXTD 0x00000000
80#  define FPCR_SNGL 0x00000040
81#  define FPCR_DBL  0x00000080
82# define FPCR_ROUND 0x00000030
83#  define FPCR_NEAR 0x00000000
84#  define FPCR_ZERO 0x00000010
85#  define FPCR_MINF 0x00000020
86#  define FPCR_PINF 0x00000030
87
88
89#endif
90
91