usr.bin/doscmd/trap.h

   1 /*
   2  * Copyright (c) 1992, 1993, 1996
   3  *      Berkeley Software Design, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Berkeley Software
  16  *      Design, Inc.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  *      BSDI trap.h,v 2.2 1996/04/08 19:33:09 bostic Exp
  31  *
  32  * $FreeBSD: src/usr.bin/doscmd/trap.h,v 1.2.2.1 2002/04/25 11:04:51 tg Exp $
  33  * $DragonFly: src/usr.bin/doscmd/trap.h,v 1.2 2003/06/17 04:29:26 dillon Exp $
  34  */
  35
  36 #define CLI     0xfa
  37 #define STI     0xfb
  38 #define PUSHF   0x9c
  39 #define POPF    0x9d
  40 #define INTn    0xcd
  41 #define TRACETRAP       0xcc
  42 #define IRET    0xcf
  43 #define LOCK    0xf0
  44 #define HLT     0xf4
  45
  46 #define OPSIZ   0x66
  47 #define REPNZ   0xf2
  48 #define REPZ    0xf3
  49
  50 #define INd     0xe4
  51 #define INdX    0xe5
  52 #define OUTd    0xe6
  53 #define OUTdX   0xe7
  54
  55 #define IN      0xec
  56 #define INX     0xed
  57 #define OUT     0xee
  58 #define OUTX    0xef
  59
  60 #define INSB    0x6c
  61 #define INSW    0x6d
  62 #define OUTSB   0x6e
  63 #define OUTSW   0x6f
  64
  65 #define IOFS    0x64
  66 #define IOGS    0x65
  67
  68 #define TWOBYTE 0x0f
  69 #define  LAR    0x02
  70
  71 #define AC_P    0x8000                  /* Present */
  72 #define AC_P0   0x0000                  /* Priv Level 0 */
  73 #define AC_P1   0x2000                  /* Priv Level 1 */
  74 #define AC_P2   0x4000                  /* Priv Level 2 */
  75 #define AC_P3   0x6000                  /* Priv Level 3 */
  76 #define AC_S    0x1000                  /* Memory Segment */
  77 #define AC_RO   0x0000                  /* Read Only */
  78 #define AC_RW   0x0200                  /* Read Write */
  79 #define AC_RWE  0x0600                  /* Read Write Expand Down */
  80 #define AC_EX   0x0800                  /* Execute Only */
  81 #define AC_EXR  0x0a00                  /* Execute Readable */
  82 #define AC_EXC  0x0c00                  /* Execute Only Conforming */
  83 #define AC_EXRC 0x0e00                  /* Execute Readable Conforming */
  84 #define AC_A    0x0100                  /* Accessed */
  85
  86 extern void     fake_int(regcontext_t *REGS, int);
  87 extern void     sigtrap(struct sigframe *sf);
  88 extern void     sigtrace(struct sigframe *sf);
  89 extern void     sigalrm(struct sigframe *sf);
  90 extern void     sigill(struct sigframe *sf);
  91 extern void     sigfpe(struct sigframe *sf);
  92 extern void     sigsegv(struct sigframe *sf);
  93 extern void     breakpoint(struct sigframe *sf);
  94 #ifdef USE_VM86
  95 extern void     sigurg(struct sigframe *sf);
  96 #else
  97 extern void     sigbus(struct sigframe *sf);
  98 #endif