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Annotation of 43BSDReno/sys/hp300/psl.h, revision 1.1.1.1

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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