psl.h revision 1.1 1 /*
2 * Rewritten for the VAX port. Based on Berkeley code. /IC
3 *
4 * Copyright (c) 1982, 1986 Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: @(#)psl.h 7.2 (Berkeley) 5/4/91
36 * $Id: psl.h,v 1.1 1994/08/02 20:20:47 ragge Exp $
37 */
38
39 #ifndef PSL_C
40
41 /*
42 * VAX program status longword
43 */
44
45 #define PSL_C 0x00000001 /* carry bit */
46 #define PSL_V 0x00000002 /* overflow bit */
47 #define PSL_Z 0x00000004 /* zero bit */
48 #define PSL_N 0x00000008 /* negative bit */
49 #define PSL_ALLCC 0x0000000F /* all cc bits - unlikely */
50 #define PSL_T 0x00000010 /* trace enable bit */
51 #define PSL_IPL00 0x00000000 /* interrupt priority level 0 */
52 #define PSL_IPL01 0x00010000 /* interrupt priority level 1 */
53 #define PSL_IPL02 0x00020000 /* interrupt priority level 2 */
54 #define PSL_IPL03 0x00030000 /* interrupt priority level 3 */
55 #define PSL_IPL04 0x00040000 /* interrupt priority level 4 */
56 #define PSL_IPL05 0x00050000 /* interrupt priority level 5 */
57 #define PSL_IPL06 0x00060000 /* interrupt priority level 6 */
58 #define PSL_IPL07 0x00070000 /* interrupt priority level 7 */
59 #define PSL_IPL08 0x00080000 /* interrupt priority level 8 */
60 #define PSL_IPL09 0x00090000 /* interrupt priority level 9 */
61 #define PSL_IPL0A 0x000a0000 /* interrupt priority level 10 */
62 #define PSL_IPL0B 0x000b0000 /* interrupt priority level 11 */
63 #define PSL_IPL0C 0x000c0000 /* interrupt priority level 12 */
64 #define PSL_IPL0D 0x000d0000 /* interrupt priority level 13 */
65 #define PSL_IPL0E 0x000e0000 /* interrupt priority level 14 */
66 #define PSL_IPL0F 0x000f0000 /* interrupt priority level 15 */
67 #define PSL_IPL10 0x00100000 /* interrupt priority level 16 */
68 #define PSL_IPL11 0x00110000 /* interrupt priority level 17 */
69 #define PSL_IPL12 0x00120000 /* interrupt priority level 18 */
70 #define PSL_IPL13 0x00130000 /* interrupt priority level 19 */
71 #define PSL_IPL14 0x00140000 /* interrupt priority level 20 */
72 #define PSL_IPL15 0x00150000 /* interrupt priority level 21 */
73 #define PSL_IPL16 0x00160000 /* interrupt priority level 22 */
74 #define PSL_IPL17 0x00170000 /* interrupt priority level 23 */
75 #define PSL_IPL18 0x00180000 /* interrupt priority level 24 */
76 #define PSL_IPL19 0x00190000 /* interrupt priority level 25 */
77 #define PSL_IPL1A 0x001a0000 /* interrupt priority level 26 */
78 #define PSL_IPL1B 0x001b0000 /* interrupt priority level 27 */
79 #define PSL_IPL1C 0x001c0000 /* interrupt priority level 28 */
80 #define PSL_IPL1D 0x001d0000 /* interrupt priority level 29 */
81 #define PSL_IPL1E 0x001e0000 /* interrupt priority level 30 */
82 #define PSL_IPL1F 0x001f0000 /* interrupt priority level 31 */
83 #define PSL_K 0x00000000 /* user mode */
84 #define PSL_E 0x01000000 /* supervisor mode */
85 #define PSL_S 0x02000000 /* executive mode */
86 #define PSL_U 0x03000000 /* kernel mode */
87 #define PSL_IS 0x04000000 /* interrupt stack select */
88 #define PSL_FPD 0x04000000 /* 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)) != 0)
106 #define CLKF_BASEPRI(framep) ((((framep)->ps) & (PSL_IPL1F)) == 0)
107 #define CLKF_PC(framep) ((framep)->pc)
108 #define CLKF_INTR(framep) 0
109 #define PSL2IPL(ps) ((ps) >> 16)
110
111 #endif
112