1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 1986,2003 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYS_PSR_H
28#define	_SYS_PSR_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI" /* from SunOS psl.h 1.2 */
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36/*
37 * Definition of bits in the SPARC PSR (Processor Status Register)
38 *  ________________________________________________________________________
39 * | IMPL | VER	|	ICC	| resvd	| EC | EF | PIL	| S | PS | ET | CWP |
40 * |	  |	| N | Z | V | C |	|    |	  |	|   |	 |    |	    |
41 * |------|-----|---|---|---|---|-------|----|----|-----|---|----|----|-----|
42 *  31  28 27 24  23  22  21  20 19   14  13   12  11  8   7   6    5  4   0
43 *
44 * Reserved bits are defined to be initialized to zero and must
45 * be preserved if written, for compatabily with future revisions.
46 */
47
48#define	PSR_CWP		0x0000001F	/* current window pointer */
49#define	PSR_ET		0x00000020	/* enable traps */
50#define	PSR_PS		0x00000040	/* previous supervisor mode */
51#define	PSR_S		0x00000080	/* supervisor mode */
52#define	PSR_PIL		0x00000F00	/* processor interrupt level */
53#define	PSR_EF		0x00001000	/* enable floating point unit */
54#define	PSR_EC		0x00002000	/* enable coprocessor */
55#define	PSR_RSV		0x000FC000	/* reserved */
56#define	PSR_ICC		0x00F00000	/* integer condition codes */
57#define	PSR_C		0x00100000	/* carry bit */
58#define	PSR_V		0x00200000	/* overflow bit */
59#define	PSR_Z		0x00400000	/* zero bit */
60#define	PSR_N		0x00800000	/* negative bit */
61#define	PSR_VER		0x0F000000	/* mask version */
62#define	PSR_IMPL	0xF0000000	/* implementation */
63
64#define	PSL_ALLCC	PSR_ICC		/* for portability */
65
66#ifndef _ASM
67typedef int	psw_t;
68#endif
69
70/*
71 * Handy psr values.
72 */
73#define	PSL_USER	(PSR_S)		/* initial user psr */
74#define	PSL_USERMASK	(PSR_ICC)	/* user variable psr bits */
75
76#define	PSL_UBITS	(PSR_ICC|PSR_EF)	/* user modifiable fields */
77						/* should set PSR_EC also */
78
79#ifdef	__cplusplus
80}
81#endif
82
83#endif	/* _SYS_PSR_H */
84