1/* $NetBSD: trap.h,v 1.2 2003/08/07 16:30:33 agc Exp $ */
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)trap.h 5.4 (Berkeley) 5/9/91
35 */
36
37/*
38 * Trap type values
39 * also known in trap.c for name strings
40 */
41
42#define T_PRIVINFLT 0 /* privileged instruction */
43#define T_BPTFLT 1 /* breakpoint trap */
44#define T_ARITHTRAP 2 /* arithmetic trap */
45#define T_ASTFLT 3 /* asynchronous system trap */
46#define T_PROTFLT 4 /* protection fault */
47#define T_TRCTRAP 5 /* trace trap */
48#define T_PAGEFLT 6 /* page fault */
49#define T_ALIGNFLT 7 /* alignment fault */
50#define T_DIVIDE 8 /* integer divide fault */
51#define T_NMI 9 /* non-maskable interrupt */
52#define T_OFLOW 10 /* overflow trap */
53#define T_BOUND 11 /* bounds check fault */
54#define T_DNA 12 /* device not available fault */
55#define T_DOUBLEFLT 13 /* double fault */
56#define T_FPOPFLT 14 /* fp coprocessor operand fetch fault */
57#define T_TSSFLT 15 /* invalid tss fault */
58#define T_SEGNPFLT 16 /* segment not present fault */
59#define T_STKFLT 17 /* stack fault */
60#define T_MCA 18 /* machine check */
61#define T_XMM 19 /* SSE FP exception */
62#define T_RESERVED 20 /* reserved fault base */
63
64/* Trap's coming from user mode */
65#define T_USER 0x100
66
67/* Flags kludged into the trap code */
68
69#define TC_TSS 0x80000000
70#define TC_FLAGMASK (TC_TSS)
71