xref: /freebsd/sys/powerpc/include/fpu.h (revision 4f52dfbb)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (C) 1996 Wolfgang Solfrank.
5  * Copyright (C) 1996 TooLs GmbH.
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. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by TooLs GmbH.
19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  *
33  *	$NetBSD: fpu.h,v 1.2 1999/12/07 15:14:56 danw Exp $
34  * $FreeBSD$
35  */
36 
37 #ifndef	_MACHINE_FPU_H_
38 #define	_MACHINE_FPU_H_
39 
40 #define	FPSCR_FX	0x80000000
41 #define	FPSCR_FEX	0x40000000
42 #define	FPSCR_VX	0x20000000
43 #define	FPSCR_OX	0x10000000
44 #define	FPSCR_UX	0x08000000
45 #define	FPSCR_ZX	0x04000000
46 #define	FPSCR_XX	0x02000000
47 #define	FPSCR_VXSNAN	0x01000000
48 #define	FPSCR_VXISI	0x00800000
49 #define	FPSCR_VXIDI	0x00400000
50 #define	FPSCR_VXZDZ	0x00200000
51 #define	FPSCR_VXIMZ	0x00100000
52 #define	FPSCR_VXVC	0x00080000
53 #define	FPSCR_FR	0x00040000
54 #define	FPSCR_FI	0x00020000
55 #define	FPSCR_FPRF	0x0001f000
56 #define	FPSCR_C		0x00010000
57 #define	FPSCR_FPCC	0x0000f000
58 #define	FPSCR_FL	0x00008000
59 #define	FPSCR_FG	0x00004000
60 #define	FPSCR_FE	0x00002000
61 #define	FPSCR_FU	0x00001000
62 #define	FPSCR_VXSOFT	0x00000400
63 #define	FPSCR_VXSQRT	0x00000200
64 #define	FPSCR_VXCVI	0x00000100
65 #define	FPSCR_VE	0x00000080
66 #define	FPSCR_OE	0x00000040
67 #define	FPSCR_UE	0x00000020
68 #define	FPSCR_ZE	0x00000010
69 #define	FPSCR_XE	0x00000008
70 #define	FPSCR_NI	0x00000004
71 #define	FPSCR_RN	0x00000003
72 
73 #ifdef _KERNEL
74 
75 void    enable_fpu(struct thread *);
76 void    save_fpu(struct thread *);
77 
78 #endif /* _KERNEL */
79 
80 #endif	/* _MACHINE_FPU_H_ */
81