1/*	$OpenBSD: psl.h,v 1.11 2021/03/11 11:16:57 jsg Exp $	*/
2
3/*
4 * Copyright (c) 1999-2004 Michael Shalayeff
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _MACHINE_PSL_H_
30#define _MACHINE_PSL_H_
31
32/*
33 * Reference:
34 * 1. PA-RISC 1.1 Architecture and Instruction Set Manual
35 *    Hewlett Packard, 3rd Edition, February 1994; Part Number 09740-90039
36 */
37
38/*
39 * Processor Status Word Bit Positions (in PA-RISC bit order)
40 */
41#define	PSL_Y_POS	(0)
42#define	PSL_Z_POS	(1)
43#define	PSL_SS_POS	(3)	/* Reserved, Software-defined */
44#define	PSL_W_POS	(4)
45#define	PSL_E_POS	(5)
46#define	PSL_S_POS	(6)
47#define	PSL_T_POS	(7)
48#define	PSL_H_POS	(8)
49#define	PSL_L_POS	(9)
50#define	PSL_N_POS	(10)
51#define	PSL_X_POS	(11)
52#define	PSL_B_POS	(12)
53#define	PSL_C_POS	(13)
54#define	PSL_V_POS	(14)
55#define	PSL_M_POS	(15)
56#define	PSL_CB_POS	(16)
57#define	PSL_O_POS	(24)
58#define	PSL_G_POS	(25)
59#define	PSL_F_POS	(26)
60#define	PSL_R_POS	(27)
61#define	PSL_Q_POS	(28)
62#define	PSL_P_POS	(29)
63#define	PSL_D_POS	(30)
64#define	PSL_I_POS	(31)
65
66#define	PSL_BITS	"\020\001I\002D\003P\004Q\005R\006F\007G\010O"  \
67			"\021M\022V\023C\024B\025X\026N\027L\030H" \
68			"\031T\032S\033E\034W\037Z\040Y"
69
70/*
71 * Processor Status Word Bit Values
72 */
73#define	PSL_Y	(1 << (31-PSL_Y_POS))	/* Data Debug Trap Disable */
74#define	PSL_Z	(1 << (31-PSL_Z_POS))	/* Instruction Debug Trap Disable */
75#define	PSL_SS	(1 << (31-PSL_SS_POS))	/* Reserved; Software Single-Step */
76#define	PSL_W	(1 << (31-PSL_W_POS))	/* 64bit address decode enable */
77#define	PSL_E	(1 << (31-PSL_E_POS))	/* Little Endian Memory Access Enable */
78#define	PSL_S	(1 << (31-PSL_S_POS))	/* Secure Interval Timer */
79#define	PSL_T	(1 << (31-PSL_T_POS))	/* Taken Branch Trap Enable */
80#define	PSL_H	(1 << (31-PSL_H_POS))	/* Higher-privilege Transfer Trap Enable */
81#define	PSL_L	(1 << (31-PSL_L_POS))	/* Lower-privilege Transfer Trap Enable */
82#define	PSL_N	(1 << (31-PSL_N_POS))	/* Nullify */
83#define	PSL_X	(1 << (31-PSL_X_POS))	/* Data Memory Break Disable */
84#define	PSL_B	(1 << (31-PSL_B_POS))	/* Taken Branch */
85#define	PSL_C	(1 << (31-PSL_C_POS))	/* Instruction Address Translation Enable */
86#define	PSL_V	(1 << (31-PSL_V_POS))	/* Divide Step Correction */
87#define	PSL_M	(1 << (31-PSL_M_POS))	/* High-priority Machine Check Mask */
88#define	PSL_CB	(1 << (31-PSL_CB_POS))	/* Carry/Borrow Bits */
89#define	PSL_O	(1 << (31-PSL_O_POS))	/* Force strong ordering (2.0) */
90#define	PSL_G	(1 << (31-PSL_G_POS))	/* Debug Trap Enable */
91#define	PSL_F	(1 << (31-PSL_F_POS))	/* Performance Monitor Interrupt Unmask */
92#define	PSL_R	(1 << (31-PSL_R_POS))	/* Recover Counter Enable */
93#define	PSL_Q	(1 << (31-PSL_Q_POS))	/* Interrupt State Collection Enable */
94#define	PSL_P	(1 << (31-PSL_P_POS))	/* Protection Identifier Validation Enable */
95#define	PSL_D	(1 << (31-PSL_D_POS))	/* Data Address Translation Enable */
96#define	PSL_I	(1 << (31-PSL_I_POS))	/* External Interrupt, Power Failure
97					   Interrupt, and Low-Priority Machine
98					   Check Interrupt unmask */
99
100/*
101 * Frequently Used PSW Values
102 */
103#define	RESET_PSL	(PSL_R | PSL_Q | PSL_P | PSL_D | PSL_I)
104
105#endif  /* _MACHINE_PSL_H_ */
106