sys/arch/vax/include/psl.h

   1 /*      $NetBSD: psl.h,v 1.10 2005/12/11 12:19:34 christos Exp $      */
   2
   3 /*
   4  * Rewritten for the VAX port. Based on Berkeley code. /IC
   5  *
   6  * Copyright (c) 1982, 1986 Regents of the University of California.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)psl.h       7.2 (Berkeley) 5/4/91
  34  */
  35
  36 #ifndef PSL_C
  37
  38 /*
  39  * VAX program status longword
  40  */
  41
  42 #define PSL_C           0x00000001      /* carry bit */
  43 #define PSL_V           0x00000002      /* overflow bit */
  44 #define PSL_Z           0x00000004      /* zero bit */
  45 #define PSL_N           0x00000008      /* negative bit */
  46 #define PSL_T           0x00000010      /* trace enable bit */
  47 #define PSL_IV          0x00000020      /* integer overflow */
  48 #define PSL_FU          0x00000040      /* floating underflow */
  49 #define PSL_DV          0x00000080      /* decimal overflow */
  50 #define PSL_IPL00       0x00000000      /* interrupt priority level 0 */
  51 #define PSL_IPL01       0x00010000      /* interrupt priority level 1 */
  52 #define PSL_IPL02       0x00020000      /* interrupt priority level 2 */
  53 #define PSL_IPL03       0x00030000      /* interrupt priority level 3 */
  54 #define PSL_IPL04       0x00040000      /* interrupt priority level 4 */
  55 #define PSL_IPL05       0x00050000      /* interrupt priority level 5 */
  56 #define PSL_IPL06       0x00060000      /* interrupt priority level 6 */
  57 #define PSL_IPL07       0x00070000      /* interrupt priority level 7 */
  58 #define PSL_IPL08       0x00080000      /* interrupt priority level 8 */
  59 #define PSL_IPL09       0x00090000      /* interrupt priority level 9 */
  60 #define PSL_IPL0A       0x000a0000      /* interrupt priority level 10 */
  61 #define PSL_IPL0B       0x000b0000      /* interrupt priority level 11 */
  62 #define PSL_IPL0C       0x000c0000      /* interrupt priority level 12 */
  63 #define PSL_IPL0D       0x000d0000      /* interrupt priority level 13 */
  64 #define PSL_IPL0E       0x000e0000      /* interrupt priority level 14 */
  65 #define PSL_IPL0F       0x000f0000      /* interrupt priority level 15 */
  66 #define PSL_IPL10       0x00100000      /* interrupt priority level 16 */
  67 #define PSL_IPL11       0x00110000      /* interrupt priority level 17 */
  68 #define PSL_IPL12       0x00120000      /* interrupt priority level 18 */
  69 #define PSL_IPL13       0x00130000      /* interrupt priority level 19 */
  70 #define PSL_IPL14       0x00140000      /* interrupt priority level 20 */
  71 #define PSL_IPL15       0x00150000      /* interrupt priority level 21 */
  72 #define PSL_IPL16       0x00160000      /* interrupt priority level 22 */
  73 #define PSL_IPL17       0x00170000      /* interrupt priority level 23 */
  74 #define PSL_IPL18       0x00180000      /* interrupt priority level 24 */
  75 #define PSL_IPL19       0x00190000      /* interrupt priority level 25 */
  76 #define PSL_IPL1A       0x001a0000      /* interrupt priority level 26 */
  77 #define PSL_IPL1B       0x001b0000      /* interrupt priority level 27 */
  78 #define PSL_IPL1C       0x001c0000      /* interrupt priority level 28 */
  79 #define PSL_IPL1D       0x001d0000      /* interrupt priority level 29 */
  80 #define PSL_IPL1E       0x001e0000      /* interrupt priority level 30 */
  81 #define PSL_IPL1F       0x001f0000      /* interrupt priority level 31 */
  82 #define PSL_PREVU       0x00c00000      /* Previous user mode */
  83 #define PSL_K           0x00000000      /* kernel mode */
  84 #define PSL_E           0x01000000      /* executive mode */
  85 #define PSL_S           0x02000000      /* supervisor mode */
  86 #define PSL_U           0x03000000      /* user mode */
  87 #define PSL_IS          0x04000000      /* interrupt stack select */
  88 #define PSL_FPD         0x08000000      /* first part done flag */
  89 #define PSL_TP          0x40000000      /* trace pending */
  90 #define PSL_CM          0x80000000      /* compatibility mode */
  91
  92 #define PSL_LOWIPL      (PSL_K)
  93 #define PSL_HIGHIPL     (PSL_K | PSL_IPL1F)
  94 #define PSL_IPL         (PSL_IPL1F)
  95 #define PSL_USER        (0)
  96
  97 #define PSL_MBZ         0x3020ff00      /* must be zero bits */
  98
  99 #define PSL_USERSET     (0)
 100 #define PSL_USERCLR     (PSL_S | PSL_IPL1F | PSL_MBZ)
 101
 102 /*
 103  * Macros to decode processor status word.
 104  */
 105 #define CLKF_USERMODE(framep)   ((((framep)->ps) & (PSL_U)) == PSL_U)
 106 #define CLKF_BASEPRI(framep)    ((((framep)->ps) & (PSL_IPL1F)) < PSL_IPL02)
 107 #define CLKF_PC(framep)         ((framep)->pc)
 108 #define CLKF_INTR(framep)       (((((framep)->ps) & (PSL_IS)) == PSL_IS) && \
 109                                     !CLKF_BASEPRI(framep))
 110 #define PSL2IPL(ps)             ((ps) >> 16)
 111
 112 #endif