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Annotation of 43BSDReno/sys/hp300/psl.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)psl.h       7.1 (Berkeley) 5/8/90
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * MC68000 program status word
        !            25:  */
        !            26: 
        !            27: #define        PSL_C           0x0001          /* carry bit */
        !            28: #define        PSL_V           0x0002          /* overflow bit */
        !            29: #define        PSL_Z           0x0004          /* zero bit */
        !            30: #define        PSL_N           0x0008          /* negative bit */
        !            31: #define        PSL_X           0x0010          /* extend bit */
        !            32: #define        PSL_ALLCC       0x001F          /* all cc bits - unlikely */
        !            33: #define        PSL_IPL0        0x0000          /* interrupt priority level 0 */
        !            34: #define        PSL_IPL1        0x0100          /* interrupt priority level 1 */
        !            35: #define        PSL_IPL2        0x0200          /* interrupt priority level 2 */
        !            36: #define        PSL_IPL3        0x0300          /* interrupt priority level 3 */
        !            37: #define        PSL_IPL4        0x0400          /* interrupt priority level 4 */
        !            38: #define        PSL_IPL5        0x0500          /* interrupt priority level 5 */
        !            39: #define        PSL_IPL6        0x0600          /* interrupt priority level 6 */
        !            40: #define        PSL_IPL7        0x0700          /* interrupt priority level 7 */
        !            41: #define        PSL_S           0x2000          /* supervisor enable bit */
        !            42: #define        PSL_T           0x8000          /* trace enable bit */
        !            43: 
        !            44: #define        PSL_LOWIPL      (PSL_S)
        !            45: #define        PSL_HIGHIPL     (PSL_S | PSL_IPL7)
        !            46: #define PSL_IPL                (PSL_IPL7)
        !            47: #define        PSL_USER        (0)
        !            48: 
        !            49: #define        PSL_MBZ         0x58E0          /* must be zero bits */
        !            50: 
        !            51: #define        PSL_USERSET     (0)
        !            52: #define        PSL_USERCLR     (PSL_S | PSL_IPL7 | PSL_MBZ)

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