subsystems/ntvdm/bios.h

   1 /*
   2  * COPYRIGHT:       GPL - See COPYING in the top level directory
   3  * PROJECT:         ReactOS Virtual DOS Machine
   4  * FILE:            bios.h
   5  * PURPOSE:         VDM BIOS (header file)
   6  * PROGRAMMERS:     Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
   7  */
   8
   9 #ifndef _BIOS_H_
  10 #define _BIOS_H_
  11
  12 /* INCLUDES *******************************************************************/
  13
  14 #include "ntvdm.h"
  15
  16 /* DEFINES ********************************************************************/
  17
  18 #define CONSOLE_VIDEO_MEM_END 0xBFFFF
  19 #define ROM_AREA_START 0xC0000
  20 #define ROM_AREA_END 0xFFFFF
  21 #define BIOS_PIC_MASTER_INT 0x08
  22 #define BIOS_PIC_SLAVE_INT 0x70
  23 #define BIOS_SEGMENT 0xF000
  24 #define BIOS_VIDEO_INTERRUPT 0x10
  25 #define BIOS_EQUIPMENT_INTERRUPT 0x11
  26 #define BIOS_KBD_INTERRUPT 0x16
  27 #define BIOS_TIME_INTERRUPT 0x1A
  28 #define BIOS_SYS_TIMER_INTERRUPT 0x1C
  29 #define CONSOLE_FONT_HEIGHT 8
  30 #define BIOS_KBD_BUFFER_SIZE 256
  31 #define BIOS_EQUIPMENT_LIST 0x3C // HACK: Disable FPU for now
  32 #define BIOS_DEFAULT_VIDEO_MODE 0x03
  33 #define BIOS_MAX_PAGES 8
  34 #define BIOS_MAX_VIDEO_MODE 0x13
  35
  36 typedef struct
  37 {
  38     DWORD Width;
  39     DWORD Height;
  40     BOOLEAN Text;
  41     BYTE Bpp;
  42     BOOLEAN Gray;
  43     BYTE Pages;
  44     WORD Segment;
  45 } VIDEO_MODE;
  46
  47 /* FUNCTIONS ******************************************************************/
  48
  49 BOOLEAN BiosInitialize();
  50 VOID BiosCleanup();
  51 VOID BiosUpdateConsole(ULONG StartAddress, ULONG EndAddress);
  52 VOID BiosUpdateVideoMemory(ULONG StartAddress, ULONG EndAddress);
  53 inline DWORD BiosGetVideoMemoryStart();
  54 inline VOID BiosVerticalRefresh();
  55 WORD BiosPeekCharacter();
  56 WORD BiosGetCharacter();
  57 VOID BiosVideoService();
  58 VOID BiosEquipmentService();
  59 VOID BiosKeyboardService();
  60 VOID BiosTimeService();
  61 VOID BiosHandleIrq(BYTE IrqNumber);
  62 VOID BiosSystemTimerInterrupt();
  63
  64 #endif