reactos/ntoskrnl/include/internal/v86m.h

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2000 David Welch <welch@cwcom.net>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * FILE:            ntoskrnl/include/internal/v86m.h
  21  * PURPOSE:         V86 mode support
  22  * PROGRAMMER:      David Welch (welch@cwcom.net)
  23  * UPDATE HISTORY:
  24  *                  Created 10/12/00
  25  */
  26
  27 #ifndef __NTOSKRNL_INCLUDE_INTERNAL_V86M_H
  28 #define __NTOSKRNL_INCLUDE_INTERNAL_V86M_H
  29
  30 #ifndef __ASM__
  31
  32 /* Emulate cli/sti instructions */
  33 #define KV86M_EMULATE_CLI_STI          (0x1)
  34 /* Allow the v86 mode code to access i/o ports */
  35 #define KV86M_ALLOW_IO_PORT_ACCESS      (0x2)
  36
  37 typedef struct _KV86M_REGISTERS
  38 {
  39   /*
  40    * General purpose registers
  41    */
  42
  43   ULONG Ebp;
  44   ULONG Edi;
  45   ULONG Esi;
  46   ULONG Edx;
  47   ULONG Ecx;
  48   ULONG Ebx;
  49   ULONG Eax;
  50   ULONG Ds;
  51   ULONG Es;
  52   ULONG Fs;
  53   ULONG Gs;
  54
  55   /*
  56    * Control registers
  57    */
  58   ULONG Eip;
  59   ULONG Cs;
  60   ULONG Eflags;
  61   ULONG Esp;
  62   ULONG Ss;
  63
  64   /*
  65    * Control structures
  66    */
  67   ULONG RecoveryAddress;
  68   UCHAR RecoveryInstruction[4];
  69   ULONG Vif;
  70   ULONG Flags;
  71   PNTSTATUS PStatus;
  72 } KV86M_REGISTERS, *PKV86M_REGISTERS;
  73
  74 NTSTATUS STDCALL
  75 Ke386CallBios(UCHAR Int, PKV86M_REGISTERS Regs);
  76
  77 #else /* ASSEMBLER */
  78
  79 /*
  80  * Definitions for the offsets of members in the KV86M_REGISTERS
  81  */
  82 #define KV86M_REGISTERS_EBP     (0x0)
  83 #define KV86M_REGISTERS_EDI     (0x4)
  84 #define KV86M_REGISTERS_ESI     (0x8)
  85 #define KV86M_REGISTERS_EDX     (0xC)
  86 #define KV86M_REGISTERS_ECX     (0x10)
  87 #define KV86M_REGISTERS_EBX     (0x14)
  88 #define KV86M_REGISTERS_EAX     (0x18)
  89 #define KV86M_REGISTERS_DS      (0x1C)
  90 #define KV86M_REGISTERS_ES      (0x20)
  91 #define KV86M_REGISTERS_FS      (0x24)
  92 #define KV86M_REGISTERS_GS      (0x28)
  93 #define KV86M_REGISTERS_EIP     (0x2C)
  94 #define KV86M_REGISTERS_CS      (0x30)
  95 #define KV86M_REGISTERS_EFLAGS  (0x34)
  96 #define KV86M_REGISTERS_ESP     (0x38)
  97 #define KV86M_REGISTERS_SS      (0x3C)
  98
  99 #endif /* ASSEMBLER */
 100
 101 #endif /* __NTOSKRNL_INCLUDE_INTERNAL_V86M_H */