minix/sys/arch/x86/include/trap.h

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