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613b74b43d
Separate the process-related code from the DOS kernel. Enable starting processes from other processes in STANDALONE mode. Implement INT 21h, AH = 55h and INT 21h, AH = 26h (Create/Clone PSP). Implement overlay loading. svn path=/trunk/; revision=67498
166 lines
4 KiB
C
166 lines
4 KiB
C
/*
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* COPYRIGHT: GPL - See COPYING in the top level directory
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* PROJECT: ReactOS Virtual DOS Machine
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* FILE: dos/dos32krnl/dos.h
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* PURPOSE: DOS32 Kernel
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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*/
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#ifndef _DOS_H_
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#define _DOS_H_
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/* INCLUDES *******************************************************************/
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#include "device.h"
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/**/ #include "int32.h" /**/
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/* DEFINES ********************************************************************/
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//
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// We are DOS 5.00 (reported by INT 21h, AH=30h)
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// and DOS 5.50 (reported by INT 21h, AX=3306h) for Windows NT Compatibility
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//
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#define DOS_VERSION MAKEWORD(5, 00)
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#define NTDOS_VERSION MAKEWORD(5, 50)
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#define DOS_CONFIG_PATH L"%SystemRoot%\\system32\\CONFIG.NT"
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#define DOS_COMMAND_INTERPRETER L"%SystemRoot%\\system32\\COMMAND.COM /k %SystemRoot%\\system32\\AUTOEXEC.NT"
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#define FIRST_MCB_SEGMENT 0x1000
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#define USER_MEMORY_SIZE (0x9FFE - FIRST_MCB_SEGMENT)
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#define SYSTEM_PSP 0x08
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#define SYSTEM_ENV_BLOCK 0x800
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#define DOS_DATA_SEGMENT 0xA0
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#define MASTER_SFT_OFFSET 0x100
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#define INVALID_DOS_HANDLE 0xFFFF
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#define DOS_INPUT_HANDLE 0
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#define DOS_OUTPUT_HANDLE 1
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#define DOS_ERROR_HANDLE 2
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#define DOS_SFT_SIZE 255
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#define UMB_START_SEGMENT 0xC000
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#define UMB_END_SEGMENT 0xDFFF
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#define DOS_ALLOC_HIGH 0x40
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#define DOS_ALLOC_HIGH_LOW 0x80
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#define DOS_DIR_LENGTH 64
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#define NUM_DRIVES ('Z' - 'A' + 1)
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#define DOS_CHAR_ATTRIBUTE 0x07
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/* 16 MB of EMS memory */
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#define EMS_TOTAL_PAGES 1024
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#pragma pack(push, 1)
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typedef struct _DOS_FCB
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{
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BYTE DriveNumber;
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CHAR FileName[8];
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CHAR FileExt[3];
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WORD BlockNumber;
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WORD RecordSize;
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DWORD FileSize;
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WORD LastWriteDate;
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WORD LastWriteTime;
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BYTE Reserved[8];
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BYTE BlockRecord;
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BYTE RecordNumber[3];
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} DOS_FCB, *PDOS_FCB;
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typedef struct _DOS_SYSVARS
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{
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DWORD OemHandler;
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WORD Int21hReturn;
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WORD ShareRetryCount;
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WORD ShareRetryDelay;
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DWORD DiskBuffer;
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WORD UnreadConInput;
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WORD FirstMcb;
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/* This is where the SYSVARS really start */
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DWORD FirstDpb;
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DWORD FirstSft;
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DWORD ActiveClock;
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DWORD ActiveCon;
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BYTE Reserved0[6];
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DWORD CurrentDirs;
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BYTE Reserved1[6];
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BYTE NumBlockDevices;
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BYTE NumLocalDrives;
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DOS_DRIVER NullDevice;
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BYTE NullDriverRoutine[7];
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} DOS_SYSVARS, *PDOS_SYSVARS;
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typedef struct _DOS_INPUT_BUFFER
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{
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BYTE MaxLength;
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BYTE Length;
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CHAR Buffer[ANYSIZE_ARRAY];
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} DOS_INPUT_BUFFER, *PDOS_INPUT_BUFFER;
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typedef struct _DOS_FIND_FILE_BLOCK
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{
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CHAR DriveLetter;
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CHAR Pattern[11];
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UCHAR AttribMask;
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DWORD Unused;
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HANDLE SearchHandle;
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/* The following part of the structure is documented */
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UCHAR Attributes;
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WORD FileTime;
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WORD FileDate;
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DWORD FileSize;
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CHAR FileName[13];
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} DOS_FIND_FILE_BLOCK, *PDOS_FIND_FILE_BLOCK;
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typedef struct _DOS_COUNTRY_CODE_BUFFER
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{
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WORD TimeFormat;
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WORD CurrencySymbol;
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WORD ThousandSep;
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WORD DecimalSep;
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} DOS_COUNTRY_CODE_BUFFER, *PDOS_COUNTRY_CODE_BUFFER;
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#pragma pack(pop)
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/* VARIABLES ******************************************************************/
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extern BOOLEAN DoEcho;
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extern DWORD DiskTransferArea;
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extern WORD DosErrorLevel;
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extern WORD DosLastError;
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extern PDOS_SYSVARS SysVars;
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/* FUNCTIONS ******************************************************************/
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extern CALLBACK16 DosContext;
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#define RegisterDosInt32(IntNumber, IntHandler) \
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do { \
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DosContext.NextOffset += RegisterInt32(MAKELONG(DosContext.NextOffset, \
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DosContext.Segment), \
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(IntNumber), (IntHandler), NULL); \
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} while(0);
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/*
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* DOS BIOS Functions
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* See bios.c
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*/
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CHAR DosReadCharacter(WORD FileHandle);
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BOOLEAN DosCheckInput(VOID);
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VOID DosPrintCharacter(WORD FileHandle, CHAR Character);
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BOOLEAN DosBIOSInitialize(VOID);
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VOID ConDrvInitialize(VOID);
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VOID ConDrvCleanup(VOID);
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/*
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* DOS Kernel Functions
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* See dos.c
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*/
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BOOLEAN DosKRNLInitialize(VOID);
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#endif // _DOS_H_
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/* EOF */
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