+++ /dev/null
-/*
- * COPYRIGHT: GPL - See COPYING in the top level directory
- * PROJECT: ReactOS Virtual DOS Machine
- * FILE: bios.h
- * PURPOSE: VDM BIOS Support Library
- * PROGRAMMERS: Hermes Belusca-Maito (hermes.belusca@sfr.fr)
- */
-
-#ifndef _BIOS_H_
-#define _BIOS_H_
-
-/* INCLUDES *******************************************************************/
-
-#include "ntvdm.h"
-#include "kbdbios.h"
-#include "vidbios.h"
-
-/* DEFINES ********************************************************************/
-
-/* BOP Identifiers */
-#define BOP_RESET 0x00 // Windows NTVDM (SoftPC) BIOS calls BOP 0x00
- // to let the virtual machine initialize itself
- // the IVT and its hardware.
-#define BOP_EQUIPLIST 0x11
-#define BOP_GETMEMSIZE 0x12
-
-
-
-
-#define BDA_SEGMENT 0x40
-#define BIOS_SEGMENT 0xF000
-
-// HACK: Disable FPU for now because it is not fully ready yet for being used
-// by all applications (e.g. QBasic runtime would use the native FPU if the bit
-// is set, but then subsequently fails, unless the FPU bit is unset in that case
-// QBasic uses its emulated FPU).
-#define BIOS_EQUIPMENT_LIST 0x2C // Bit1: FPU, Bit 2: Mouse
-
-#pragma pack(push, 1)
-
-/*
- * BIOS Data Area at 0040:XXXX
- *
- * See: http://webpages.charter.net/danrollins/techhelp/0093.HTM
- * and: http://www.bioscentral.com/misc/bda.htm
- * for more information.
- */
-typedef struct
-{
- WORD SerialPorts[4]; // 0x00
- WORD ParallelPorts[3]; // 0x08
- WORD EbdaSegment; // 0x0e - ParallelPort in PC/XT
- WORD EquipmentList; // 0x10
- BYTE Reserved0; // 0x12 - Errors in PCjr infrared keyboard link
- WORD MemorySize; // 0x13
- WORD Reserved1; // 0x15 - Scratch pad for manufacturing error tests
- WORD KeybdShiftFlags; // 0x17
- BYTE AlternateKeypad; // 0x19
- WORD KeybdBufferHead; // 0x1a
- WORD KeybdBufferTail; // 0x1c
- WORD KeybdBuffer[BIOS_KBD_BUFFER_SIZE]; // 0x1e
- BYTE DriveRecalibrate; // 0x3e
- BYTE DriveMotorStatus; // 0x3f
- BYTE MotorShutdownCounter; // 0x40
- BYTE LastDisketteOperation; // 0x41
- BYTE Reserved2[7]; // 0x42
- BYTE VideoMode; // 0x49
- WORD ScreenColumns; // 0x4a
- WORD VideoPageSize; // 0x4c
- WORD VideoPageOffset; // 0x4e
- WORD CursorPosition[BIOS_MAX_PAGES]; // 0x50
- BYTE CursorEndLine; // 0x60
- BYTE CursorStartLine; // 0x61
- BYTE VideoPage; // 0x62
- WORD CrtBasePort; // 0x63
- BYTE CrtModeControl; // 0x65
- BYTE CrtColorPaletteMask; // 0x66
- BYTE CassetteData[5]; // 0x67
- DWORD TickCounter; // 0x6c
- BYTE MidnightPassed; // 0x70
- BYTE BreakFlag; // 0x71
- WORD SoftReset; // 0x72
- BYTE LastDiskOperation; // 0x74
- BYTE NumDisks; // 0x75
- BYTE DriveControlByte; // 0x76
- BYTE DiskPortOffset; // 0x77
- BYTE LptTimeOut[4]; // 0x78
- BYTE ComTimeOut[4]; // 0x7c
- WORD KeybdBufferStart; // 0x80
- WORD KeybdBufferEnd; // 0x82
- BYTE ScreenRows; // 0x84
- WORD CharacterHeight; // 0x85
- BYTE VGAOptions; // 0x87
- BYTE VGASwitches; // 0x88
- BYTE VGAFlags[2]; // 0x89
- DWORD Reserved3; // 0x8b
- BYTE Reserved4; // 0x8f
- BYTE Reserved5[2]; // 0x90
- BYTE Reserved6[2]; // 0x92
- BYTE Reserved7[2]; // 0x94
- WORD KeybdStatusFlags; // 0x96
- DWORD Reserved9; // 0x98
- DWORD Reserved10; // 0x9c
- DWORD Reserved11[2]; // 0xa0
- DWORD EGAPtr; // 0xa8
- BYTE Reserved12[68]; // 0xac
- BYTE Reserved13[16]; // 0xf0
-
- DWORD Reserved14; // 0x100
- BYTE Reserved15[12]; // 0x104
- BYTE Reserved16[17]; // 0x110
- BYTE Reserved17[15]; // 0x121
- BYTE Reserved18[3]; // 0x130
-} BIOS_DATA_AREA, *PBIOS_DATA_AREA;
-C_ASSERT(sizeof(BIOS_DATA_AREA) == 0x133);
-
-/*
- * BIOS Configuration Table at F000:E6F5 for 100% compatible BIOSes.
- *
- * See: http://www.ctyme.com/intr/rb-1594.htm
- * for more information.
- */
-typedef struct _BIOS_CONFIG_TABLE
-{
- WORD Length; // 0x00
- BYTE Model; // 0x02
- BYTE SubModel; // 0x03
- BYTE Revision; // 0x04
- BYTE Feature[5]; // 0x05 -- 0x09
- // Other BIOSes may extend this table. We don't.
-} BIOS_CONFIG_TABLE, *PBIOS_CONFIG_TABLE;
-
-#pragma pack(pop)
-
-/* FUNCTIONS ******************************************************************/
-
-extern PBIOS_DATA_AREA Bda;
-extern PBIOS_CONFIG_TABLE Bct;
-
-VOID WINAPI BiosEquipmentService(LPWORD Stack);
-VOID WINAPI BiosGetMemorySize(LPWORD Stack);
-
-BOOLEAN
-BiosInitialize(IN LPCSTR BiosFileName);
-
-VOID
-BiosCleanup(VOID);
-
-#endif // _BIOS_H_
-
-/* EOF */
projects / reactos.git / blobdiff