/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1986,2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_PSR_H
#define _SYS_PSR_H

#pragma ident   "%Z%%M% %I%     %E% SMI" /* from SunOS psl.h 1.2 */

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Definition of bits in the SPARC PSR (Processor Status Register)
 *  ________________________________________________________________________
 * | IMPL | VER |       ICC     | resvd | EC | EF | PIL | S | PS | ET | CWP |
 * |      |     | N | Z | V | C |       |    |    |     |   |    |    |     |
 * |------|-----|---|---|---|---|-------|----|----|-----|---|----|----|-----|
 *  31  28 27 24  23  22  21  20 19   14  13   12  11  8   7   6    5  4   0
 *
 * Reserved bits are defined to be initialized to zero and must
 * be preserved if written, for compatabily with future revisions.
 */

#define PSR_CWP         0x0000001F      /* current window pointer */
#define PSR_ET          0x00000020      /* enable traps */
#define PSR_PS          0x00000040      /* previous supervisor mode */
#define PSR_S           0x00000080      /* supervisor mode */
#define PSR_PIL         0x00000F00      /* processor interrupt level */
#define PSR_EF          0x00001000      /* enable floating point unit */
#define PSR_EC          0x00002000      /* enable coprocessor */
#define PSR_RSV         0x000FC000      /* reserved */
#define PSR_ICC         0x00F00000      /* integer condition codes */
#define PSR_C           0x00100000      /* carry bit */
#define PSR_V           0x00200000      /* overflow bit */
#define PSR_Z           0x00400000      /* zero bit */
#define PSR_N           0x00800000      /* negative bit */
#define PSR_VER         0x0F000000      /* mask version */
#define PSR_IMPL        0xF0000000      /* implementation */

#define PSL_ALLCC       PSR_ICC         /* for portability */

#ifndef _ASM
typedef int     psw_t;
#endif

/*
 * Handy psr values.
 */
#define PSL_USER        (PSR_S)         /* initial user psr */
#define PSL_USERMASK    (PSR_ICC)       /* user variable psr bits */

#define PSL_UBITS       (PSR_ICC|PSR_EF)        /* user modifiable fields */
                                                /* should set PSR_EC also */

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_PSR_H */