usr/src/sys/hp300/include/psl.h

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)psl.h       7.4 (Berkeley) %G%
 */

#ifndef PSL_C
/*
 * MC68000 program status word
 */

#define PSL_C           0x0001          /* carry bit */
#define PSL_V           0x0002          /* overflow bit */
#define PSL_Z           0x0004          /* zero bit */
#define PSL_N           0x0008          /* negative bit */
#define PSL_X           0x0010          /* extend bit */
#define PSL_ALLCC       0x001F          /* all cc bits - unlikely */
#define PSL_IPL0        0x0000          /* interrupt priority level 0 */
#define PSL_IPL1        0x0100          /* interrupt priority level 1 */
#define PSL_IPL2        0x0200          /* interrupt priority level 2 */
#define PSL_IPL3        0x0300          /* interrupt priority level 3 */
#define PSL_IPL4        0x0400          /* interrupt priority level 4 */
#define PSL_IPL5        0x0500          /* interrupt priority level 5 */
#define PSL_IPL6        0x0600          /* interrupt priority level 6 */
#define PSL_IPL7        0x0700          /* interrupt priority level 7 */
#define PSL_M           0x1000          /* master (kernel) sp vs intr sp */
#define PSL_S           0x2000          /* supervisor enable bit */
/*      PSL_T0          0x4000             ??? T0 on 68020, 8000 is T1 */
#define PSL_T           0x8000          /* trace enable bit */

#define PSL_LOWIPL      (PSL_S)
#define PSL_HIGHIPL     (PSL_S | PSL_IPL7)
#define PSL_IPL         (PSL_IPL7)
#define PSL_USER        (0)

#define PSL_MBZ         0xFFFF58E0      /* must be zero bits */

#define PSL_USERSET     (0)
#define PSL_USERCLR     (PSL_S | PSL_IPL7 | PSL_MBZ)

#define USERMODE(ps)    (((ps) & PSL_S) == 0)
#endif