/*      $NetBSD: trap.h,v 1.3 2020/03/14 04:55:14 maxv 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
*/

#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)