;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Data Structures and Definitions ; ;...............................................................; ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Real Time Dos Data Structure Definitions ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; ; ; Data Structure Definitions ; ; ; ; ; ; (c) Copyright 1990, 1997 Api Software and Mike Podanoffsky ; ; All Rights Reserved Worldwide. ; ; ; ; This product is protected under copyright laws and may not ; ; be reproduced in whole or in part, in any form or media, ; ; included but not limited to source listing, facsimile, data ; ; transmission, cd-rom, or floppy disk without the expressed ; ; written consent of the author. ; ; ; ; License for distribution for commercial use or resale ; ; required from: ; ; ; ; Api Software ; ; 12 South Walker Street ; ; Lowell, MA 01851 ; ; ; ; internet: mikep@world.std.com ; ; ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; Compile with MASM 5.1 ; ;...............................................................; ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Set ROM IDENTIFICATION ; ;...............................................................; IFDEF RxDOS_ROMVERSION ROM_IDENTIFICATION equ 8 ; ROM Version Status ELSE ROM_IDENTIFICATION equ 0 ; not in ROM ENDIF ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Default Configuration Parameters ; ;...............................................................; ;RxDOS_TRACEBUILD equ 1 DEFAULT_FILES equ 8 ; MS DOS default is 8 DEFAULT_FCBS equ 4 ; MS DOS default is 4 DEFAULT_BUFFERS equ 10 ; MS DOS default is 2 DEFAULT_LASTDRIVE equ 'E' ; MS DOS default is e: DEFAULT_FCBOPENMODE equ 2 ; change only if you want read-only DEFAULT_STACKS equ 9 ; DEFAULT_CODEPAGE equ CODEPAGE_UNITEDSTATES ; default code page DEFAULT_COUNTRYCODE equ COUNTRY_UNITEDSTATES ; default country code DEFAULT_MINENVIRONMENT equ 2048 ; bytes default environment space DEFAULT_MINALLOWEDENVIRONMENT equ 160 ; MS DOS minimum DEFAULT_MAXALLOWEDENVIRONMENT equ 32768 ; MS DOS maximum ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Max Configuration Parameters Allowable ; ;...............................................................; ; max allowed values, not actual values CONFIGMAX_FILES equ 255 ; MS DOS default is 8 (value is max allowed) CONFIGMAX_BUFFERS equ 99 ; MS DOS default is 2 (value is max allowed) CONFIGMAX_FCBS_X equ 255 ; MS DOS default is 4 (value is max allowed) CONFIGMAX_FCBS_Y equ 255 ; MS DOS default is 0 (value is max allowed) CONFIGMIN_STACKS_X equ 8 ; MS DOS default is 9 CONFIGMAX_STACKS_X equ 64 CONFIGMIN_STACKS_Y equ 32 ; MS DOS default is 128 CONFIGMAX_STACKS_Y equ 512 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; DOS Functions ; ;...............................................................; ProgramTerminate equ 00h ; Program Terminate KeyboardInput equ 01h ; Keyboard Input DisplayOutput equ 02h ; Display Output AuxInput equ 03h ; Aux Input AuxOutput equ 04h ; Aux Output PrinterOutput equ 05h ; Printer Output DirectConsole equ 06h ; Direct Console DirectConsoleInputNoEcho equ 07h ; Direct Console Input NoEcho ConsoleInputNoEcho equ 08h ; Console Input NoEcho DisplayString equ 09h ; Display String BufferedKeyboardInput equ 0Ah ; Buffered keyboard input GetLine equ BufferedKeyboardInput CheckKeyboardInput equ 0Bh ; Check keyboard input ClearBufferedKeyboardInput equ 0Ch ; Clear Buffered keyboard input DiskReset equ 0Dh ; Disk reset SelectDisk equ 0Eh ; Select disk OpenFileFCB equ 0Fh ; Open file FCB CloseFileFCB equ 10h ; Close file FCB SearchFirstFileFCB equ 11h ; Search first file FCB SearchNextFileFCB equ 12h ; Search next file FCB DeleteFileFCB equ 13h ; Delete file FCB SeqReadFileFCB equ 14h ; Seq read file FCB SeqWriteFileFCB equ 15h ; Seq write file FCB CreateFileFCB equ 16h ; Create file FCB RenameFileFCB equ 17h ; Rename file FCB CurrentDisk equ 19h ; Current disk SetDiskTransferAddress equ 1Ah ; Set disk transfer address SetDTA equ SetDiskTransferAddress GetDefaultDriveData equ 1Bh ; Get Default Drive Data GetDriveData equ 1Ch ; Get Drive Data GetDefaultDriveParameterBlock equ 1Fh ; Get Default Drive Parameter Block ReadFileFCB equ 21h ; Read file FCB WriteFileFCB equ 22h ; Write file FCB FileSizeFCB equ 23h ; File size FCB SetRelativeRecordFCB equ 24h ; Set relative record FCB SetIntVector equ 25h ; Set interrupt vector CreateNewProgramSeg equ 26h ; Create new program seg RandomBlockReadFCB equ 27h ; Random block read FCB RandomBlockWriteFCB equ 28h ; Random block write FCB ParseFilenameFCB equ 29h ; Parse filename FCB GetDate equ 2Ah ; Get date SetDate equ 2Bh ; Set date GetTime equ 2Ch ; Get time SetTime equ 2Dh ; Set time SetVerifySwitch equ 2Eh ; Set verify switch GetDiskTransferAddress equ 2Fh ; Get disk transfer address GetDTA equ GetDiskTransferAddress GetDOSVersion equ 30h ; Get DOS version TerminateStayResident equ 31h ; Terminate stay resident GetDriveParameterBlock equ 32h ; Undocumented (Get Drive Parameter Block) CtrlBreakCheck equ 33h ; Ctrl break check GetINDOSFlagAddress equ 34h ; Get INDOS Flag Address GetIntVector equ 35h ; Get interrupt vector GetFreeDiskSpace equ 36h ; Get free disk space GetSetSwitchChar equ 37h ; Get/set switch char CountryDependentInfo equ 38h ; Country dependent info CreateSubdirectory equ 39h ; Create subdirectory RemoveSubdirectory equ 3Ah ; Remove subdirectory ChangeSubdirectory equ 3Bh ; Change subdirectory CreateFile equ 3Ch ; Create file OpenFile equ 3Dh ; Open file CloseFile equ 3Eh ; Close file ReadFile equ 3Fh ; Read file WriteFile equ 40h ; Write file DeleteFile equ 41h ; Delete file MoveFilePointer equ 42h ; Move file pointer ChangeFileMode equ 43h ; Change file mode IoControl equ 44h ; Io Control DuplicateFileHandle equ 45h ; Duplicate file handle ForceFileHandle equ 46h ; Force file handle GetCurrentDirectory equ 47h ; Get current directory AllocateMemory equ 48h ; Allocate memory FreeAllocatedMemory equ 49h ; Free allocated memory ModifyAllocatedMemory equ 4Ah ; Modify allocated memory ExecuteProgram equ 4Bh ; ExecuteProgram TerminateProcess equ 4Ch ; Terminate process TerminateProgram equ TerminateProcess GetReturnCode equ 4Dh ; Get return code FindFirstFile equ 4Eh ; Find first file FindNextFile equ 4Fh ; Find next file SetPSPAddress equ 50h ; Set PSP Address GetPSPAddress equ 51h ; Get PSP Address GetDosDataTablePtr equ 52h ; Undocumented (Get DOS Data Table) GetVerify equ 54h ; Get verify DuplicatePSP equ 55h ; Duplicate PSP RenameFile equ 56h ; Rename file SetFileDateTime equ 57h ; Set file date time GetAllocationStrategy equ 5800h ; Get allocation strategy SetAllocationStrategy equ 5801h ; Set allocation strategy GetExtendedError equ 59h ; Get extended error CreateUniqueFile equ 5Ah ; Create unique file CreateNewFile equ 5Bh ; Create new file LockFileAccess equ 5Ch ; Lock file access ServerShareAndSwap equ 5Dh ; Server Share/ Swap SetExtendedError equ 5D0Ah ; Set Extended Error GetMachineName equ 5Eh ; Get machine name GetRedirectionList equ 5Fh ; Get redirection list GetActualFileName equ 60h ; Undocumented (Get Actual FileName) GetProgramSegmentPrefix equ 62h ; Get program segment prefix ExtCountryDependentFunctions equ 65h ; Country Dependent Functions SetHandlesCount equ 67h ; Set Handles Count CommitFile equ 68h ; Commit File GetDiskSerialNumber equ 69h ; Get Disk Serial Number ExtendedOpenCreate equ 6Ch ; Extended Open/ Create ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Network Redirector (2F11) Functions ; ;...............................................................; IFSInstallCheck equ 00h ; Install Check IFSRemoveDirectory equ 01h ; Remove Directory IFSMakeDirectory equ 03h ; Make Directory IFSChangeDirectory equ 05h ; Change Directory IFSCloseFile equ 06h ; Close File IFSCommitFile equ 07h ; Commit File IFSReadFile equ 08h ; Read File IFSWriteFile equ 09h ; Write File IFSLockRegion equ 0Ah ; Lock Region IFSUnlockRegion equ 0Bh ; Unlock Region IFSGetDiskSpace equ 0Ch ; Get Disk Space IFSSetFileAttributes equ 0Eh ; Set File Attributes IFSGetFileAttributes equ 0Fh ; Get File Attributes IFSRenameFile equ 11h ; Rename File IFSDeleteFile equ 13h ; Delete File IFSOpenFile equ 16h ; Open File IFSCreateFile equ 17h ; Create File IFSFindFirst equ 1Bh ; Find First IFSFindNext equ 1Ch ; Find Next IFSCloseAllFiles equ 1Dh ; Close All Files IFSSetRedirection equ 1Eh ; Set Redirection IFSPrinterSetup equ 1Fh ; Printer Setup IFSFlushBuffers equ 20h ; Flush Buffers IFSSeekFromEnd equ 21h ; Seek From End IFSTerminateProcess equ 22h ; Terminate Process IFSQualifyFilename equ 23h ; Qualify Filename IFSPrinterMode equ 25h ; Printer Mode IFSPrinterOnOff equ 26h ; Printer On/Off IFSCopy equ 27h ; Copy IFSIOCTL equ 2Bh ; IOCTL IFSExpandedOpen equ 2Eh ; Expanded Open/Create IFSGetSegment equ 30h ; Get NFS Segment ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Interrupt Definitions ; ;...............................................................; intTERMINATEAPP equ 22h ; terminate app intCONTROLC equ 23h ; control-c handler intCRITICALERROR equ 24h ; critical error intIDLELOOP equ 28h ; let other applications run ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Standard I/O Definitions ; ;...............................................................; STDIN equ 00 STDOUT equ 01 STDERR equ 02 STDAUX equ 03 STDPRN equ 04 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Seek Definitions ; ;...............................................................; SEEK_BEG equ 00 SEEK_CUR equ 01 SEEK_END equ 02 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Open Modes ; ;...............................................................; OPEN_ACCESS_READONLY equ 00h OPEN_ACCESS_WRITEONLY equ 01h OPEN_ACCESS_READWRITE equ 02h OPEN_ACCESS_NOINHERIT equ 80h OPEN_SHARE_COMPATABILITY equ 00h OPEN_SHARE_DENYREADWRITE equ 10h OPEN_SHARE_DENYREAD equ 20h OPEN_SHARE_DENYWRITE equ 30h OPEN_SHARE_DENYNONE equ 40h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; File Actions ; ;...............................................................; ACTION_OPENED equ 01 ACTION_CREATED_OPENED equ 02 ACTION_REPLACED_OPENED equ 03 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Extended Open / Create Actions ; ;...............................................................; EXTENDEDACTION_CREATE equ 0010h EXTENDEDACTION_OPEN equ 0001h ; fail if exists EXTENDEDACTION_TRUNCATE equ 0002h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; FCB Parse ; ;...............................................................; FCBPARSE_IGNORELEADSEPARATOR equ 01 FCBPARSE_LEAVEDRIVEUNCHANGED equ 02 FCBPARSE_LEAVEFILENAMEUNCHANGED equ 04 FCBPARSE_LEAVEEXTENSIONUNCHANGED equ 08 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Control Check Definitions ; ;...............................................................; getControlC equ 00h ; Get ControlC Check Flag setControlC equ 01h ; Set ControlC Check Flag getStartupDrive equ 05h ; Get Startup Drive getExtDosVersion equ 06h ; Get DOS Version ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Load and Exec Subfunctions ; ;...............................................................; execLoadAndExecute equ 00h ; load and execute execLoadAndReturnDebug equ 01h ; load and return to debugger execLoadOverlay equ 03h ; load overlay execSetExecuteMode equ 05h ; set execution mode ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Terminate Codes ; ;...............................................................; TERMINATE_NORMAL equ 00h ; process completed with a 4C TERMINATE_CONTROLC equ 01h ; process was cancelled TERMINATE_DEVICEERROR equ 02h ; abort in device handler TERMINATE_TSR equ 03h ; terminated but stayed resident ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; 65h Country Dependent Capitalization ; ;...............................................................; _CapCharacter equ 20h ; character capitalization _CapLengthDefString equ 21h ; length defined string capitalization _CapString equ 22h ; ASCIZ capitalization _CountryDepYesNo equ 23h ; does character represent Yes/No response _CapFnCharacter equ 0A0h ; filename character capitalization _CapFnLengthDefString equ 0A1h ; filename length defined string capitalization _CapFnString equ 0A2h ; filename ASCIZ capitalization ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Country Codes ; ;...............................................................; COUNTRY_UNITEDSTATES equ 001 ; United States COUNTRY_CANADIANFRENCH equ 002 ; Canadian-French COUNTRY_LATINAMERICA equ 003 ; Latin America COUNTRY_RUSSIA equ 007 ; Russia COUNTRY_NETHERLANDS equ 031 ; Netherlans COUNTRY_BELGIUM equ 032 ; Belgium COUNTRY_FRANCE equ 033 ; France COUNTRY_SPAIN equ 034 ; Spain COUNTRY_HUNGARY equ 036 ; Hungary COUNTRY_CROATIA equ 038 ; Croatia COUNTRY_SERBIA_YUGOSLAVIA equ 038 ; Serbia/Yugoslavia COUNTRY_SLOVENIA equ 038 ; Slovenia COUNTRY_ITALY equ 039 ; Italy COUNTRY_SWITZERLAND equ 041 ; Switzerland COUNTRY_SLOVAKIA equ 042 ; Slovakia COUNTRY_CZECHREPUBLIC equ 042 ; The Czech Republic COUNTRY_AUSTRIA equ 043 ; Austria COUNTRY_UNITEDKINGDOM equ 044 ; United Kingdom COUNTRY_DENMARK equ 045 ; Denmark COUNTRY_SWEDEN equ 046 ; Sweden COUNTRY_NORWAY equ 047 ; Norway COUNTRY_POLAND equ 048 ; Poland COUNTRY_GERMANY equ 049 ; Germany COUNTRY_BRAZIL equ 055 ; Brazil COUNTRY_INTERNATIONAL_ENGLISH equ 061 ; International English COUNTRY_PORTUGAL equ 351 ; Portugal COUNTRY_ICELAND equ 354 ; Iceland COUNTRY_FINLAND equ 358 ; Finland COUNTRY_JAPAN equ 081 ; Japan COUNTRY_KOREA equ 082 ; Korea COUNTRY_CHINA equ 086 ; China COUNTRY_TAIWAN equ 088 ; Taiwan COUNTRY_TURKEY equ 090 ; Turkey COUNTRY_MIDDLEEAST equ 785 ; Middle East/ Saudi Arabia COUNTRY_SAUIARABIA equ 785 ; Middle East/ Saudi Arabia COUNTRY_ISRAEL equ 972 ; Israel ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Code Pages ; ;...............................................................; CODEPAGE_UNITEDSTATES equ 437 ; United States CODEPAGE_MULTILINGUAL equ 850 ; Multilingual CODEPAGE_SLAVIC equ 852 ; Slavic CODEPAGE_SLAVIC_II equ 855 ; Slavic II CODEPAGE_TURKEY equ 859 ; Turkey CODEPAGE_PORTUGAL equ 860 ; Portuguese CODEPAGE_ICELAND equ 861 ; Iceland CODEPAGE_CANADIANFRENCH equ 863 ; Canadian-French CODEPAGE_MIDDLEEAST equ 864 ; Arabic CODEPAGE_NORDIC equ 865 ; Nordic CODEPAGE_CYRILLIC equ 866 ; Cyrillic CODEPAGE_JAPAN equ 932 ; Japan CODEPAGE_KOREA equ 934 ; Korea CODEPAGE_CHINA equ 936 ; China CODEPAGE_TAIWAN equ 938 ; Taiwan CODEPAGE_LATIN_I equ CODEPAGE_MULTILINGUAL CODEPAGE_LATIN_II equ CODEPAGE_SLAVIC ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Date/Time ; ;...............................................................; DATE_USA equ 00h ; Month/ day/ year DATE_EUROPE equ 01h ; Day/ month/ year DATE_JAPAN equ 02h ; Year/ month/ day DATE_OTHER equ 03h ; (0ther) DATE_MMDDYY equ DATE_USA ; Month/ day/ year DATE_DDMMYY equ DATE_EUROPE ; Day/ month/ year DATE_YYMMDD equ DATE_JAPAN ; Year/ month/ day DATE_OTHER equ 03h ; (0ther) TIME_12HOUR equ 00h ; 12-hour time TIME_24HOUR equ 01h ; 24-hour time CURRENCY_BEFORE equ 00h CURRENCY_AFTER equ 01h CURRENCY_NOSPACEBETWEEN equ 00h CURRENCY_SPACEBETWEEN equ 02h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Swappable Data Area Styles ; ;...............................................................; DOS3_SDASTYLE equ 0 DOS4_SDASTYLE equ 1 DOS5_SDASTYLE equ 1 DOS6_SDASTYLE equ 1 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Structure Definitions ; ;...............................................................; ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Country Info ; ;...............................................................; COUNTRYINFO struc intlDateFormat dw ? ; date format intlCurrency db 5 dup(?) ; currency symbol (asciz) intlThousands db 2 dup(?) ; thousands intlDecimal db 2 dup(?) ; decimal intlDateSep db 2 dup(?) ; date intlTimeSep db 2 dup(?) ; time intlBitField db ? ; currency format (before or after) intlCurrencyPlaces db ? ; places after decimal point intlTimeFormat db ? ; 12-hour or 24-hour format intlCaseMap dd ? ; address of case-mapping routine intlDataSep db 2 dup(?) ; data-list ... intlReserved db 10 dup(?) ; reserved COUNTRYINFO ends intlCurrency_MASK equ 0001h intlCurrencyPreceeds equ 0 intlCurrencyFollows equ 1 intlSpace_MASK equ 0002h intlNoSpaceinAmount equ 0 intlSpaceinAmount equ 1 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; File Name ; ;...............................................................; FILENAME struc fnName db '????????' fnExtension db '???' FILENAME ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Directory Entries ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; See Functions ; ; ; ; _SearchFirstFileFCB 11h ; ; _SearchNextFileFCB 12h ; ;...............................................................; DIRENTRY struc deName db '????????' deExtension db '???' deAttributes db ? deReserved db 10 dup (?) deTime dw ? ; Time Format ; 0 - 4 Two second intervals ; 5 -10 Minutes (0 - 59) ; 11 -15 Hours (0 - 23) deDate dw ? ; Date Format ; 0 - 4 Day (1 - 31) ; 5 - 8 Month (1 - 12) ; 9 -15 Year since 1980 deStartCluster dw ? deFileSize dd ? DIRENTRY ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Attribute bits ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ATTR_NORMAL equ 00h ATTR_READONLY equ 01h ATTR_HIDDEN equ 02h ATTR_SYSTEM equ 04h ATTR_VOLUME equ 08h ATTR_DIRECTORY equ 10h ATTR_ARCHIVE equ 20h ATTR_SETTABLE equ (ATTR_READONLY + ATTR_HIDDEN + ATTR_SYSTEM + ATTR_ARCHIVE) ATTR_MASK equ 1Fh ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Special Characters ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - DIRENTRY_NEVERUSED equ 00h SPECIAL_CHAR equ 05h DIRENTRY_DELETED equ 0E5h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Find First/ Find Next ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; See Functions ; ; ; ; _FindFirstFile 4Eh ; ; _FindNextFile 4Fh ; ;...............................................................; FINDENTRY struc findSrchDrive db ? findSrchName db '????????' ; name to search findSrchExtension db '???' findSrchAttributes db ? findDirEntry dw ? ; dir entry (;** Not Double !!) findDirBegCluster dw ? ; dir beg cluster findDirCurrCluster dw ? ; dir curr cluster findCCBPointer dw ? ; ccb pointer findFileAttribute db ? findFileTime dw ? findFileDate dw ? findFileSize dd ? findFileName db 13 dup (?) ; null terminated name FINDENTRY ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; File Tables ; ;...............................................................; FT struc nextFTPointer dd ? numberSFTEntries dw ? FT ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; System File Tables ; ;...............................................................; SFT struc sftRefCount dw ? sftMode dw ? sftFileAttrib db ? sftDevInfo dw ? ; device info sftDCB dd ? ; file DCB address or driver address sftBegCluster dw ? ; start address of file sftTime dw ? sftDate dw ? sftFileSize dd ? ; file size sftFilePosition dd ? ; current offset into file sftRelCluster dw ? ; relative cluster sftDirSector dd ? ; absolute address of directory entry sftDirIndex db ? ; used in search next sftFileName db '????????' sftFileExtension db '???' sftShareSftPointer dd ? ; points to other shared file sftOwnerMachine dw ? ; virtual machine id # sftOwnerPSP dw ? ; owner process sftShareRecordPtr dw ? ; share record pointer sftCurCluster dw ? ; 0000 if never read/ written sftIFSDriverPtr dd ? ; IFS Driver pointer sftVolumeId dd ? ; RxDOS extended information SFT ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Mode ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - sftENTRY_ISFCB equ 8000h ; RxDOS specific sftDENY_NONE equ 0040h sftDENY_READ equ 0030h sftDENY_WRITE equ 0020h sftEXCLUSIVE equ 0010h sftNET_FCB equ 0070h sftWRITE equ 0001h sftREAD equ 0000h ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; sftDevInfo ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - sftShared equ 8000h sftDateset equ 4000h sftNoInherit equ 1000h sftIsDevice equ 0080h sftWritten equ 0040h ; valid only if NOT Device sftDrivemask equ 003Fh ; valid only if NOT Device ; --- all of the following have meaning when IsDevice is SET --- sftDeviceIsRemote equ 8000h ; device is remote sftIoctl equ 4000h ; ioctl also supported sftPipe equ 2000h ; is pipe sftNetworkSpooler equ 0800h ; network spooler sftEof equ 0040h ; these flags valid only IF IsDevice sftBinary equ 0020h ; 0 means ASCII sftSpecial equ 0010h sftIsclock equ 0008h sftIsnul equ 0004h sftIsstdout equ 0002h sftIsstdin equ 0001h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; File Control Blocks ; ;...............................................................; FCB struc fcbDrive db ? fcbName db '????????' fcbExtension db '???' fcbCurrBlockNo dw ? fcbRecordSize dw ? fcbFileSize dd ? fcbDate dw ? fcbTime dw ? fcbSFN db ? ; handle to sft system fcbFlags db ? ; modified flags fcbDHD dd ? ; device header/DCB fcbBegClusterNo dw ? ; start of file cluster number fcbCurrRecNo db ? fcbRandomRecNo dd ? FCB ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Extended FCB Header ; ;...............................................................; ExtendedFCBHdr struc extSignature db ? db '?????' extAttribute db ? ExtendedFCBHdr ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Disk I/O Structure ; ;...............................................................; DISKIO struc diskioStartSector dd ? ; sector number diskioSectors dw ? ; # sectors diskioBuffer dd ? ; buffer pointer DISKIO ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; System Access Control Block ; ;...............................................................; DISKACCESS struc diskAcDrive dw ? ;* diskAcBegCluster dw ? ;* (cluster #) diskAcFileSize dd ? ;* file size in bytes diskAcPosition dd ? ;* read request (access position) diskAcCurCluster dw ? ;* (cluster #) diskAcCurSector dd ? ; (LSN #) diskAcOffAtBegCluster dd ? ;* (file offset ) diskAcOffAtBegBuffer dd ? ; (file offset ) diskAcBufferPtr dd ? ; dynamically assigned diskAcOptions dw ? ; optimize options diskAcBytesToRead dw ? ; fast read DISKACCESS ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Options (options contains ccb_ defines in lower byte) ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - DISKAC_OPTIMIZEDWRITE equ 8000h DISKAC_READBUFFER_ASSIGNED equ 4000h DISKAC_READ_MULTIPLESECTORS equ 2000h DISKAC_RESULT_READMULTIPLESECTORS equ 1000h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Directory Access Block ; ;...............................................................; DIRACCESS struc fileAcDrive dw ? ; which drive file is located fileAcCluster dw ? ; which cluster file is located fileAcDirCluster dw ? ; which dir cluster fileAcDirSector dd ? ; which dir sector fileAcDirOffset dw ? ; offset in directory sector fileAcBufferPtr dd ? ; pointer to directory buffer fileAcDevicePtr dd ? ; if device, device driver address fileAcNameOffset dw ? ; offset in Expanded Name fileAcExpandedName db 128 dup (?) DIRACCESS ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Flags for file parsing ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - FILEIS_FCB equ 0001h ; file passed is an FCB FILE_NODEVICENAME equ 0002h ; path may not contain a device name FILEHAS_WILDCHARS equ 0004h ; path may contain wild characters FILEHAS_NOFILENAME equ 0008h ; path may not contain filename FILECANNOT_BEDEFINED equ 0010h ; filename must not exist FILECANNOT_BEDIRECTORY equ 0020h ; filename cannot be directory FILEMAY_EXIST equ 0040h ; file may exist (cluster not -1 ) FILE_ORDEVICE equ 0000h ; file or device must exist ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Std Character I/O Redirection Table ; ;...............................................................; STDREDIREC struc stdDriverName db '????????' ; driver name stdIOHandle dw ? ; handle assigned, if any stdDevInfo dw ? ; device assign bits STDREDIREC ends stdRedirec_Aux equ 0 stdRedirec_Con equ 1 stdRedirec_Prn equ 2 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Drive Parameter Block ; ;...............................................................; DPB struc _dpbDrive db ? ; logical drive _dpbUnit db ? ; logical unit _dpbBytesPerSector dw ? _dpbClusterSizeMask db ? _dpbClusterSizeShift db ? _dpbFirstFAT dw ? _dpbNumCopiesFAT db ? _dpbMaxAllocRootDir dw ? _dpbFirstDataSector dw ? _dpbMaxClusterNumber dw ? _dpbSectorsPerFat dw ? ; in DOS ver 5 this became a word _dpbFirstDirSector dw ? _dpbptrDeviceDriver dd ? _dpbMediaDescriptor db ? _dpbAccessFlag db ? ; -1 if must be rebuilt _dpbNextDPB dd ? _dpbNextFree dw ? ; cluster where to search for next free _dpbFreeCount dw ? ; number of free clusters remaining _dpbVolumeId dd ? ; RxDOS extended information DPB ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; BIOS Parameter Block ; ;...............................................................; BPB struc _bpbBytesPerSector dw ? _bpbSectorsPerCluster db ? _bpbResSectors dw ? _bpbNumCopiesFAT db ? _bpbMaxAllocRootDir dw ? _bpbMaxSectors dw ? ; if zero, see huge sectors _bpbMediaDescriptor db ? ; device media id _bpbSectorsPerFat dw ? _bpbSectorsPerTrack dw ? _bpbHeads dw ? _bpbHiddenSectors dd ? _bpbHugeSectors dd ? BPB ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Boot Sector Parameter Block ; ;...............................................................; BOOTSECTOR struc _bsJump db 3 dup(?) _bsOemName db 8 dup(?) _bsBytesPerSector dw ? ; (start of BPB) _bsSectorsPerCluster db ? _bsResSectors dw ? _bsNumCopiesFAT db ? _bsMaxAllocRootDir dw ? _bsMaxSectors dw ? ; if zero, see huge sectors _bsMediaDescriptor db ? _bsSectorsPerFat dw ? _bsSectorsPerTrack dw ? _bsHeads dw ? _bsHiddenSectors dd ? _bsHugeSectors dd ? ; (end of BPB) _bsDriveNumber db ? db ? _bsBootSignature db ? ; 29h if extended boot sector _bsVolumeId dd ? _bsVolumeLabel db 11 dup(?) ; not same as DOS Volume Id _bsFileSystemType db 8 dup(?) BOOTSECTOR ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Partition Table Record ; ;...............................................................; PARTITION struc _ptBootable db ? ; 80h = bootable, 00h = nonbootable _ptBeginHead db ? ; begin head address _ptBeginSector db ? ; begin sector address _ptBeginCylinder db ? ; begin cylinder address _ptFileSystemName db ? ; file system identifier (see below) _ptEndHead db ? ; end head address _ptEndSector db ? ; end sector address _ptEndCylinder db ? ; end cylinder address _ptStartSector dd ? ; start sector (relative to beg of disk) _ptSectors dd ? ; number of sectors in partition PARTITION ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; File System ID Codes ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - FILESYSID_12FAT equ 01h ; 12-bit FAT (max 10 MBytes) FILESYSID_16FAT equ 04h ; 16-bit FAT (max 32 MBytes) FILESYSID_EXTENDED equ 05h ; Extended DOS partition FILESYSID_LARGE16FAT equ 06h ; 16-bit FAT (greater than 32 MBytes) RxDOS_PARTITIONSIGNATURE equ 0AA55h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Device Parameter Block ; ;...............................................................; DEVPB struc _dpSpecialFunc db ? _dpDevType db ? ; device type _dpDevAttr dw ? ; device attributes _dpCylinders dw ? ; number of cylinders _dpMediaType db ? ; media type ; always followed by a BPB DEVPB ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Current Directory Entries ; ;...............................................................; CDS struc _cdsActualDirectory db 67 dup (?) ; asciz name _cdsFlags dw ? _cdsPtrToDPB dd ? _cdsStartClusterDir dw ? ; dw ? ; padding for network record _cdsNetwParameter dw ? ; padding for network record _cdsNonSubstOffset dw ? db ? ; compatability byte _cdsPtrtoIFSDriver dd ? dw ? ; compatability word CDS ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Redirection for IFS ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _cdsRedirectIFSPtr equ _cdsStartClusterDir ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Flags ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _CDS_NETWORKEDDRIVE equ 8000h _CDS_PHYSICALDRIVE equ 4000h _CDS_JOINEDDRIVE equ 2000h _CDS_SUBSTDRIVE equ 1000h _CDS_NONETLISTING equ 0080h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Memory Management Blocks ; ;...............................................................; MEMBLOCK struc _memSignature db ? ; always 4D _memParent dw ? ; seg address of owner _memAlloc dw ? ; allocated size _memReserved db '???' _memPgmName db 8 dup (?) ; program name or null MEMBLOCK ends _RxDOS_MEMSIGNATURE equ 4Dh _RxDOS_ENDSIGNATURE equ 5Ah _RxDOS_PARENT_SIGNATURE equ 0008h ; mem parent signature _RxDOS_FREE_MEMBLOCK equ 0000h ; mem block is free _RxDOS_HIGHMEMBLOCK equ 0A000h - 1 ; start mem block for high mem _MIN_RxDOS_ALLOC_PARAS equ 2 _MEM_FIRSTFIT_STRATEGY equ 0003h ; masks for allocation test _MEM_BESTFIT_STRATEGY equ 0001h _MEM_LASTFIT_STRATEGY equ 0002h _MEM_FIRSTFIT_LOW equ 0000h ; strategy requests _MEM_BESTFIT_LOW equ 0001h _MEM_LASTFIT_LOW equ 0002h _MEM_FIRSTFIT_HIGH equ 0080h _MEM_BESTFIT_HIGH equ 0081h _MEM_LASTFIT_HIGH equ 0082h _MEM_FIRSTFIT_HIGHONLY equ 0040h _MEM_BESTFIT_HIGHONLY equ 0041h _MEM_LASTFIT_HIGHONLY equ 0042h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Buffers (Cache) Block ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; ; ; Compatability note: ; ; ; ; This buffer's definition is slightly different from MSDOS ; ; but appears to function in exactly the same way. ; ; ; ;...............................................................; CCB struc ccbNext dw ? ; next cache control block ccbPrev dw ? ; prev cache control block ccbDrive db ? ; drive ccbStatus db ? ; status flags ccbLBN dd ? ; block number (sector) ccbNumCopies db ? ; number of FAT copies (*) ccbSectorOffsets dw ? ; offset between FAT sectors (*) ccbDPB dd ? ; pointer to drive parameter block ccbCount dw ? ; count if remote ccbSFTIdent db ? ; system sft Handle (*) ccbData db 512 dup ( ? ) ; data ; (*) unused by RxDOS CCB ends ccbChecksum equ ccbSectorOffsets ; checksum protection ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Flags ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ccb_isONHOLD equ 01h ; used internally ccb_isFAT equ 02h ccb_isDIR equ 04h ccb_isDATA equ 08h ccb_isVALID equ 20h ; contains valid data ccb_isDIRTY equ 40h ccb_isREMOTE equ 80h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Program Segment Prefix (PSP) ; ;...............................................................; PSP struc pspInt20 dw ? ; Int 20 instruction pspNextParagraph dw ? ; seg address of next paragraph db ? ; not used pspDispatcher db 5 dup ( ? ) ; long call to MS-DOS pspTerminateVect dd ? ; Terminate Vector (Int 22h) pspControlCVect dd ? ; Control-C Vector (Int 23h) pspCritErrorVect dd ? ; CritError Vector (Int 24h) pspParentId dw ? ; PSP seg of parent pspHandleTable db 20 dup ( ? ) ; Allocated Handle Table pspEnvironment dw ? ; seg address of environment block pspUserStack dd ? ; user stack pspFileHandleCount dw ? ; handles allocated pspFileHandlePtr dd ? ; pointer to handle table pspShareChain dd ? ; Share chain pointer db 4 dup ( ? ) ; unused pspVersion dw ? ; Major, Minor version (VERS) db 14 dup ( ? ) ; unused pspDosCall db 3 dup ( ? ) ; int 21/ retf db 9 dup ( ? ) ; unused pspFCB_1 db 16 dup ( ? ) ; FCB 1 pspFCB_2 db 16 dup ( ? ) ; FCB 2 db 4 dup ( ? ) pspCommandTail db 128 dup ( ? ) ; command tail (also default DTA ) PSP ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Exe File Header ; ;...............................................................; EXEHEADER struc exeSignature dw ? ; .EXE file signature exeExtraBytes dw ? ; number of bytes in last partial page exePages dw ? ; number of whole and partial pages exeRelocItems dw ? ; number of pointers in reloc table exeHeaderSize dw ? ; size of header, in paragraphs exeMinAlloc dw ? ; minimum allocation (parag) exeMaxAlloc dw ? ; maximum allocation (parag) exeInitSS dw ? ; initial ss value exeInitSP dw ? ; initial sp value exeChecksum dw ? ; complemented checksum exeInitIP dw ? ; initial ip value exeInitCS dw ? ; initial cs value exeRelocTable dw ? ; byte offset to reloc table exeOverlay dw ? ; overlay number dw 16 dup( ? ) ; reserved (unused) exeNewExe dd ? ; pointer to new EXE header EXEHEADER ends EXE_SIGNATURE equ 5A4DH ; 'MZ' ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Execution State ; ;...............................................................; EXECSTATE struc dw ? execFlags dw ? execProgName dd ? execPSP dw ? execStartAddr dd ? execProgSize dd ? EXECSTATE ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Load and Execute ; ;...............................................................; EXEC struc lexecEnvironment dw ? lexecCommandTail dd ? lexecFCB_1 dd ? lexecFCB_2 dd ? EXEC ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Load Program ; ;...............................................................; LOADPROG struc lprogEnvironment dw ? lprogCommandTail dd ? lprogFCB_1 dd ? lprogFCB_2 dd ? lprogSSSP dd ? ; starting stack address lprogCSIP dd ? ; starting code address LOADPROG ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Load Overlay ; ;...............................................................; LOADOVERLAY struc loverSegLoadAddress dw ? loverRelocFactor dw ? ; .EXE files only LOADOVERLAY ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Get Buffered Input Line Structure ; ;...............................................................; BUFLINE struc bufMaxLength db ? ; max bytes bufActualLength db ? ; actual bytes read bufData db 128 dup(?) ; actual bytes (any length) BUFLINE ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Line Editor Structure ; ;...............................................................; LINEEDITOR struc editCursor dw ? ; cursor offset editMaxAvail dw ? ; max characters in buffer editMaxBuffer dw ? ; max characters allowed editFlags dw ? ; flags editPhysCursorRow db ? ; beg of edit phys cursor pos editPhysCursorCol db ? ; beg of edit phys cursor pos editBufPointer dd ? ; pointer to client buffer LINEEDITOR ends editInsertFlag equ 8000h ; insert mode editSearchFlag equ 4000h ; search mode editControlFlag equ 2000h ; next character a control character ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; LineEditor_BufferPool ; ;...............................................................; LINEEDITOR_BUFFERPOOL struc bOwnerPSP dw ? ; owner PSP bBuffer db 128 dup(?) ; interim storage LINEEDITOR_BUFFERPOOL ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Clock Data ; ;...............................................................; CLOCKDATA struc cl_daysSince1980 dw ? ; since Jan 1, 1980 cl_minutes db ? cl_hours db ? cl_hseconds db ? cl_seconds db ? cl_day db ? cl_month db ? cl_year dw ? CLOCKDATA ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; ERROR Structure ; ;...............................................................; ERROR struc errAX dw ? ; AX errBX dw ? ; BX errCX dw ? ; CX errDX dw ? ; DX errSI dw ? ; SI errDI dw ? ; DI errDS dw ? ; DS errES dw ? ; ES errReserved dw ? ; Reserved errUID dw ? ; user (computer) ID errPID dw ? ; program ID (PSP) ERROR ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; ERROR Structure ; ;...............................................................; EXTERRORCODE struc ExtErrorCodeValue dw ? Locus db ? SuggestedAction db ? ErrorClass db ? db ? EXTERRORCODE ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; DOS Error Messages ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; ; ; All error messages are defined here. ; ; ; ; ; ;...............................................................; errInvalidFunction equ 0001h errFileNotFound equ 0002h errPathNotFound equ 0003h errIllegalName equ ( errPathNotFound ) errNoHandlesAvailable equ 0004h errAccessDenied equ 0005h errInvalidHandle equ 0006h errArenaTrashed equ 0007h errNotEnoughMemory equ 0008h errInvalidBlock equ 0009h errInvalidAccess equ 000Ch errInvalidDrive equ 000Fh errCurrentDirectory equ 0010h errNoMoreFiles equ 0012h errFileExists equ 0050h errFCBSizeTooLarge equ 0002h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Critical Error Flags ; ;...............................................................; CRITERROR_IGNORE equ 00 CRITERROR_RETRY equ 01 CRITERROR_TERMINATE equ 02 CRITERROR_FAIL equ 03 CRITERROR_IGNOREALLOWED equ 0008h ; ignore allowed bit CRITERROR_RETRYALLOWED equ 0010h ; retry allowed bit CRITERROR_FAILALLOWED equ 0020h ; fail allowed bit CRITERROR_STDRETRIES equ 03 ; retry three times. ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Extended Errors Class Codes ; ;...............................................................; ERRCLASS_OUTRES equ 01h ; out of resources ERRCLASS_TEMPSIT equ 02h ; not an error, temporary situation ERRCLASS_AUTH equ 03h ; authorization problem ERRCLASS_INTRN equ 04h ; internal error ERRCLASS_HRDFAIL equ 05h ; hardware failure ERRCLASS_SYSFAIL equ 06h ; system failure ERRCLASS_APPERR equ 07h ; application error (inv param or buff ptr) ERRCLASS_NOTFND equ 08h ; item not found ERRCLASS_BADFMT equ 09h ; bad format ERRCLASS_LOCKED equ 0Ah ; interlocked item or file ERRCLASS_MEDIA equ 0Bh ; media error ERRCLASS_ALREADY equ 0Ch ; item already exists ERRCLASS_UNK equ 0Dh ; unknown ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Extended Errors Suggested Action Codes ; ;...............................................................; ERRACT_RETRY equ 01h ; retry immediately ERRACT_DLYRET equ 02h ; delay and retry ERRACT_USER equ 03h ; bad user input ERRACT_ABORT equ 04h ; terminate in orderly manner ERRACT_PANIC equ 05h ; terminate immediately ERRACT_IGNORE equ 06h ; ignore error ERRACT_INTRET equ 07h ; prompt user (chg disk, etc... ) ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Extended Errors Location Codes ; ;...............................................................; ERRLOC_UNK equ 01h ; unknown ERRLOC_DISK equ 02h ; random-access device ERRLOC_NET equ 03h ; network ERRLOC_SERDEV equ 04h ; serial device ERRLOC_MEM equ 05h ; memory ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; BIOS Parameters ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; ; ; These definitions are part of the common BIOS access area ; ; at seg 40:xxxx ; ; ; ;...............................................................; _BIOS_Memory equ 0013h _BIOS_KeyboardFlags equ 0017h _BIOS_BreakFlag equ 0071h _BIOS_NumFixedDrives equ 0075h _BIOS_KB_NumLock equ 20h ; used to set/ alter numlock in init _BIOS_BREAK_STATE equ 80h ; used to detect Break state ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; SYSINIT Parameters ; ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -; ; ; ; These parameters are passed between rxdosbio.com and rxdos ; ; at startup. ; ; ; ;...............................................................; SYSINIT struc initBootDrive db ? ; unit code initTotalDrives db ? ; detected by IO.SYS initLowMemSegment dw ? ; low memory segment initMemParagraphs dw ? ; memory size initDeviceChain dd ? initRelocHighBegAddress dd ? initRelocHighSize dw ? ; bytes to relocate initRelocHighNotify dw ? ; call back function address initRelocLowBegAddress dd ? ; only used if IO.SYS reloc to HMA initRelocLowSize dw ? ; bytes to relocate initRelocLowNotify dw ? ; call back function address SYSINIT ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Disk Parameter Block ; ;...............................................................; DISKPARAM struc _dptControlTimers dw ? ; see below for definition _dptMotorOffDelay db ? ; clock ticks _dptBytesPerSector db ? ; 00 = 128, 01 = 256, ... _dptSectorsPerTrack db ? ; _dptGapLength db ? ; gap between sectors ; 2Ah = 5.25" ; 1Bh = 3.5" _dptDataLength db ? ; _dptFormatGapLength db ? ; gap length when formatting _dptFormatFillerByte db ? ; default F6h. _dptHeadSettleTime db ? ; in milliseconds. _dptMotorStartTime db ? ; in 1/8 seconds. DISKPARAM ends ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Control Timers ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - DPT_STEPRATEMASK equ 0F000h ; bits 15-12 DPT_HEADUNLOADTIME equ 00F00h ; bits 11-08 (0fh = 240 ms) DPT_HEADLOADTIME equ 00FEh ; bits 07-01 (01h = 4 ms) DPT_NONDMA_MODE equ 0001h ; bit 0 (always 0) ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Device Drivers Data Structures ; ;...............................................................; DEVICEINIT equ 00h MEDIAREQUEST equ 01h BUILDBPB equ 02h IOCTLREAD equ 03h DEVICEREAD equ 04h NONDESTRREAD equ 05h INPUTSTATUS equ 06h INPUTFLUSH equ 07h DEVICEWRITE equ 08h DEVICEWRITEVERIFY equ 09h OUTPUTSTATUS equ 0ah OUTPUTFLUSH equ 0bh IOCTLWRITE equ 0ch OPENDEVICE equ 0dh CLOSEDEVICE equ 0eh REMOVABLEMEDIA equ 0fh OUTPUTTILLBUSY equ 10h GENERICIOCTL equ 13h GETLOGICALDEVICE equ 17h SETLOGICALDEVICE equ 18h IOCTLQUERY equ 19h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Internal Device Service Table ; ;...............................................................; DEVSERVICETABLE struc devsrvEntries db ? devsrvBranches dw ? DEVSERVICETABLE ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; General Request Header Definition ; ;...............................................................; DEVReqHeader struc rhLength db ? rhUnit db ? rhFunction db ? rhStatus dw ? rhReserved db 8 dup ( ? ) ; extended definition rhMedia db ? ; Media id DEVReqHeader ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Init Request Header Definition ; ;...............................................................; INITReqHeader struc irLength db ? irUnit db ? irFunction db ? irStatus dw ? irReserved db 8 dup ( ? ) irUnits db ? ; number of units irEndAddress dd ? ; input: end available driver mem ; OUTPUT: end address resident memory irParamAddress dd ? ; input: config.sys device= line ; OUTPUT: BPB pointer array irDriveNumber db ? ; input: first drive number irMessageFlag dw ? ; OUTPUT: error-message flag INITReqHeader ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Media Request Header Definition ; ;...............................................................; MEDIAReqHeader struc mrLength db ? mrUnit db ? mrFunction db ? mrStatus dw ? mrReserved db 8 dup ( ? ) mrMediaID db ? ; mrReturn db ? ; Return value mrVolumeID dd ? ; volume identifier MEDIAReqHeader ends MEDIA_HASCHANGED equ -1 MEDIA_UNCHANGED equ 1 MEDIA_UNKNOWN equ 0 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; DPB Request Header Definition ; ;...............................................................; BUILDBPBReqHeader struc bbrLength db ? bbrUnit db ? bbrFunction db ? bbrStatus dw ? bbrReserved db 8 dup ( ? ) bbrMediaID db ? ; bbrFATSector dd ? ; buffer with first FAT sector bbrBPBAddress dd ? ; DPB address BUILDBPBReqHeader ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Read/ Write Request Header Definition ; ;...............................................................; READReqHeader struc rwrLength db ? rwrUnit db ? rwrFunction db ? rwrStatus dw ? rwrReserved db 8 dup ( ? ) rwrMediaID db ? ; rwrBuffer dd ? ; rwrBytesReq dw ? ; rwrStartSec dw ? ; rwrVolumeID dd ? ; volume identifier rwrHugeStartSec dd ? ; 32 bit sector READReqHeader ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; NonDestructive LookAhead Read Definition ; ;...............................................................; NONDESTREADReqHeader struc ndrLength db ? ndrUnit db ? ndrFunction db ? ndrStatus dw ? ndrReserved db 8 dup ( ? ) ndrCharRead db ? ; character available NONDESTREADReqHeader ends ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Device Definition Header ; ;...............................................................; DEVICEHEADER struc devLink dd ? devAttributes dw ? devStrategy dw ? devInterrupt dw ? devName db '????????' ; character devices ; extended definition ( non-standard ) devTablePtr dw ? devLogicalUnit dw ? DEVICEHEADER ends devUnits equ devName ; block devices ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Device Definition Flags ; ;...............................................................; DEV_STDINPUT equ 0001h DEV_STDOUTPUT equ 0002h DEV_NULL equ 0004h DEV_CLOCK equ 0008h DEV_FASTCHARIO equ 0010h ; supports int 29 fast i/o DEV_LOGICALMAPPING equ 0040h ; supports logical dev mapping DEV_IOCTL equ 0080h ; supports IOCTL DEV_REMOVABLEMEDIA equ 0800h ; supports removable media calls DEV_OUTPUTTILLBUSY equ 2000h ; supports output till busy DEV_IOCTL_RW equ 4000h ; supports IOCTL read/write DEV_CHAR equ 8000h ; character mode device DEV_BLOCKEXTNADDRESS equ 0002h ; block device support 32 bit extended address DEV_REQUIRESFATSECTOR equ 2000h ; requires FAT sector address ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Device Errors And Status ; ;...............................................................; OP_ERROR equ 8000h OP_NODATA equ 0300h OP_BUSY equ 0200h OP_DONE equ 0100h OP_EXITERROR equ 8100h devErrWriteProtectViol equ 0 devErrUnknownUnit equ 1 devErrDeviceNotReady equ 2 devErrUnknownCommand equ 3 devErrCRCerr equ 4 devErrBadDriveReq equ 5 devErrSeekError equ 6 devErrUnknownMedia equ 7 devErrSectorNotFound equ 8 devErrPrinterOutPaper equ 9 devErrWriteFault equ 10 devErrReadFault equ 11 devErrGeneralFailure equ 12 devErrSharingViolation equ 13 devErrLockViolation equ 14 devErrInvalidDiskChange equ 15 ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; BIOS Disk Services Error Codes ; ;...............................................................; dskErrNoError equ 0 dskErrInvalidParameter equ 1 dskErrAddrMarkNotFound equ 2 dskErrWriteProtected equ 3 dskErrSectorNotFound equ 4 dskErrResetFailed equ 5 dskErrDisketteRemoved equ 6 dskErrBadParameterTable equ 7 dskErrDMAOverrun equ 8 dskErrCross64kBoundary equ 9 dskErrBadSector equ 10 dskErrBadCylinder equ 11 dskErrMediaTypeNotFound equ 12 dskErrInvalidNumSectors equ 13 dskErrControlAddrMark equ 14 dskErrDMAArbOutOfRange equ 15 dskErrCRCerror equ 16 dskErrECCCorrectedErr equ 17 dskErrControllerFailed equ 20h dskErrSeekFailed equ 40h dskErrDriveTimeOut equ 80h dskErrDriveNotReady equ 0AAh dskErrUndefinedError equ 0BBh dskErrWriteFault equ 0CCh dskErrStatusOpFailed equ 0DDh ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Con Definitions ; ;...............................................................; BIOS_ConRead equ 00h BIOS_ConStatus equ 01h BIOS_ConReadFlags equ 02h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Comm Definitions ; ;...............................................................; BIOS_ComInit equ 00h ; returns line status/ modem status BIOS_ComWrite equ 01h ; returns line status/ modem status BIOS_ComRead equ 02h ; returns line status/ modem status BIOS_ComStatus equ 03h ; returns line status/ modem status ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Comm Line Status Register ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - CommLS_TimeOut equ 8000h CommLS_ShiftRegEmpty equ 4000h CommLS_HoldRegEmpty equ 2000h CommLS_BreakDetect equ 1000h CommLS_FE equ 0800h CommLS_PE equ 0400h CommLS_OE equ 0200h CommLS_DataAvail equ 0100h ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Comm Modem Status Register ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - CommMS_RLSD equ 0080h CommMS_RING equ 0040h CommMS_DSR equ 0020h CommMS_CTS equ 0010h CommMS_ChgRLSD equ 0008h CommMS_ChgRING equ 0004h CommMS_ChgDSR equ 0002h CommMS_ChgCTS equ 0001h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Prn Definitions ; ;...............................................................; BIOS_PrnWrite equ 00h ; returns status BIOS_PrnInit equ 01h BIOS_PrnStatus equ 02h Prn_RetryCount equ 03 ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ; Print Status ;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Prn_NotBusy equ 8000h Prn_Ack equ 4000h Prn_OutOfPaper equ 2000h Prn_Selected equ 1000h Prn_IOError equ 0800h Prn_TimeOut equ 0100h ;'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''; ; Define Structure Sizes ; ;...............................................................; sizedevName equ 8 sizefnName equ 8 sizefnExtension equ 3 sizeFILENAME equ sizefnName + sizefnExtension sizeTempFILENAME equ sizeFILENAME + 1 sizeTempExpandedFCBNAME equ sizeFILENAME + 4 ; drive: + null sizeCCB equ size CCB sizeCCBData equ 512 sizeDIRENTRY equ size DIRENTRY maskDIRINDEX equ (sizeCCBData / sizeDIRENTRY) - 1 sizeFT equ size FT sizeSFT equ size SFT sizeFCB equ size FCB sizeBPB equ size BPB sizeExtendedFCBHdr equ size ExtendedFCBHdr sizeCLOCKDATA equ size CLOCKDATA sizeERROR equ size ERROR sizeEXTERRORCODE equ size EXTERRORCODE sizeVolumeID equ size _dpbVolumeId sizeDISKACCESS equ size DISKACCESS sizeDIRACCESS equ size DIRACCESS sizeFINDENTRY equ size FINDENTRY sizeDPB equ size DPB sizeCDS equ size CDS sizeMEMBLOCK equ size MEMBLOCK sizePSP equ size PSP sizePSPHandleTable equ 20 sizeSector equ 512 sizePage equ 512 sizeParagraph equ 16 sizeParasPerPage equ (sizePage/ sizeParagraph ) sizeCOUNTRYINFO equ size COUNTRYINFO sizeDISKPARAM equ size DISKPARAM sizeVolumeLabel equ 11 sizePARTITION equ size PARTITION sizePARTITIONTABLE equ (4 * sizePARTITION) sizeEXPANDNAME equ 128 sizeCmdLine equ 128 sizeCmdLineStruct equ (sizeCmdLine + 3) sizeLINEEDITOR equ size LINEEDITOR sizeStdRedirec equ size STDREDIREC sizeLINEEDITOR_BUFFERPOOL equ size LINEEDITOR_BUFFERPOOL sizeEXECSTATE equ size EXECSTATE sizeEXEHEADER equ size EXEHEADER sizeEXEC equ size EXEC sizeLOADPROG equ size LOADPROG sizeLOADOVERLAY equ size LOADOVERLAY sizeSYSINIT equ size SYSINIT ; Device Headers sizeINITReqHeader equ size INITReqHeader sizeDEVReqHeader equ size DEVReqHeader sizeDEVReqHeader equ size DEVReqHeader sizeREADReqHeader equ size READReqHeader sizeMEDIAReqHeader equ size MEDIAReqHeader sizeBUILDBPBReqHeader equ size BUILDBPBReqHeader sizeDEVICEHEADER equ size DEVICEHEADER sizeMaxReqHeader equ sizeREADReqHeader