LDOS 5.3.1 update - tim
Contents
1. TED will display a welcome message on the bottom line of the video screen This display line will also be used for the display of status prompting and error messages TED displays three different types of messages during its operation Error messages are indicated by a terminating exclamation point Queries which need a response are Copyright 1991 MISOSYS Inc All rights reserved indicated by a terminating question mark Informative messages use no special character for their termination Thus Marker is an error String is a query and Block is information Text entry modes TED will accept only displayable ASCII characters in the range 20H through 7FH for text entry Any other character value will be interpreted as a command entry If it matches a value in the command table that command will be invoked otherwise the entry will be ignored TED operates in two text entry modes overstrike and insert The initial mode established when TED is first invoked is the overstrike mode While TED is in overstrike mode it will use an underscore as the cursor character When you toggle to insert mode the cursor is changed to a full graphics block You toggle from one mode to the other via the CTRL A command When TED is in overstrike mode any acceptable text entry typed character is written over the character which appears under the blinking cursor You can overstrike a newline character i e ENTER which is d2. n D 54 21 14 54 C9 5 3 1 SOLE CMD 5 3 1 FDUBL CMD tion for FDUBL IVER FDUBL1 Percom using Percom type doubler PATCH SOLE UT L IX Patch to Model SOLE to force cylinder 1 TY SOLE1 5 3 1 SOLE CM D PATCH SOLE UT L 54 1E 02 CC 09 1E 02 CD TY SOLE2 fully allocated 09 1E 00 CD 45 4B 36 FF CC 18 53 C9 61 73 65 2 Patch to Model PATCH SYS0 SYS SYSTEM SYSO11 0 32 20 69 73 20 6E 6F 77 5235 1 SYSO SYS
3. This utility has been modified to generate a DATA disk after formatting DATA disks reserve only two file slots out of the total number of directory slots available SYSTEM disks configured by the BACKUP utility reserve 14 additional directory slots for SYS files This facility provides 14 additional file slots for DATA drives over that previously available under earlier releases of LDOS Copyright 1991 MISOSYS Inc All rights reserved For Model I systems the SYSTEM parameter has been added for 5 25 floppy drives to designate cylinder 0 as single density when the diskette is specified for double density formatting This creates a dual density configuration suitable for subsequent use as a booting system disk once the operating system has been moved and the SOLE utility applied LCOMM This communications program has been enhanced via the addition of parameter control over the codes used for XON and XOFF Also LCOMM now makes use of the new CMNDR command and return vector of LDOS This feature provides you the ability to access LDOS library commands while running LCOMM The command mode is available via the keystroke sequence lt CLEAR gt lt SHIFT gt lt 0 gt Here is the syntax for invoking LCOMM LCOMM devspec parms Devspec is the RS232 device installed via SET usually CL XlateS xX fftt Translates character ff to tt before sending XlateR X fftt Translates received character ff to tt NULL OFF Prevents nulls 0
4. Record Length 1 256 256 Rec r Allocates r records of LRL length Size s Allocates s K bytes of space in K 1024 bytes SIZE may not be specified if LRL or REC are SHRINK If specified the file is marked for future de allocation of space Fill f The created file will be populated with this byte If omitted the file is not initialized with any byte Copyright 1991 MISOSYS Inc All rights reserved DATE The acceptable range of dates is from January 1 1980 through December 31 2011 years 1980 through 1999 are entered as 80 99 while years 2000 2011 are entered as 00 11 DEBUG The DEBUG command has been improved to allow for the removal of the extended debugger from resident memory using the command DEBUG OFF Ext provided the memory resident module was the most recent module installed into memory DEVICE The DEVICE command has had both its display and its operation improved A new parameter N has been added and the display has been paged To refresh your mind here 1s the command s syntax DEVICE parms B 0FF Suppresses the byte I O portion of the display D OFF Suppresses the drive portion of the display N ON Set non stop display mode Assumed if P is selected S OFF Suppresses the options status portion of the display P ON Duplicates device status to the printer DIR The directory command has been considerably enhanced The display now includes the time stamp and byte EOF position for each file A
5. delete to bottom CTRL D then SHIFT After typing CTRL D the character now under the cursor is the character which was to the right of the deleted character Since in the case of delete to bol and delete to top you are deleting text which is in front of the cursor you really don t want to delete the character which is under the cursor after the CTRL D Well you don t have to worry about that because those two subcommands properly backup one position before continuing the deletion Block operations The BLOCK command CTRL B has six subcommands Begin End Copy Delete Move and Print These subcommands are specified by entering the first letter of the subcommand word B E C D M or P The entry may be in either upper or lower case Note that these subcommands are NOT control key combinations but normal alphabetic single key entries When you invoke the BLOCK command the word Block will be displayed in the status line Anytime you need to deal with a block say to copy it move it or delete it you have to first mark it The beginning and ending positions of a block are marked by first positioning the cursor over the first character of the block and then entering the two command sequence CTRL B followed by B This is followed up be positioning the cursor over the character immediately following the last character of the block and then entering the two command sequence CTRL B followed by E The beginning p
6. onto a system disk which has been formatted in dual density The Model I FORMAT utility will format a double density disk with a single density cylinder 0 when both the DDEN and SYSTEM parameters are specified This assumes that the double density disk driver FDUBL has been installed After the operating system has been moved to the dual density diskette the booting driver is applied by invoking SOLE d where d references the drive containing the dual density disk if not specified it will default to 0 Afterwards move the disk to drive 0 and save the configuration with SYSTEM SYSGEN TED TED is a new text editor which has been added to LDOS It is a full screen ASCII text editor with many editing features It provides the facility of editing ASCII text files it is very useful for those LDOS users not already owning a text editor or word processor Documentation for TED is a separate section of this update documentation KI DVR The keyboard driver has been improved to allow the key combination lt CLEAR gt lt SHIFT gt lt 0 gt to generate a code of 160d the same as lt CLEAR gt lt SPACE gt Note that it will not toggle CAPS LOCK only lt SHIFT gt lt 0 gt will toggle CAPS LOCK Another enhancement to LDOS will restrict KI DVR from being inadvertently loaded by issuing it as a command it requires installation via the SET library command If Model IN LDOS is running on a Model 4 computer installing the KI DVR will aut
7. onto blank diskettes in drive 1 by issuing the commands FORMAT 1 SYSTEM BACKUP 0 1 Note You cannot use QFB to backup a dual density diskette Updating Radio Shack HARD disks For most hard disk installations the following instructions can be used They assume a 2 head 5 Megabyte hard drive partitioned as 2 drives 0 and 1 and 2 floppy drives 2 and 3 Other installations should be able to adapt these instructions to their specific hardware configuration 1 Copy your hard disk driver file from your old LDOS disk to a backup copy of your new LDOS 5 3 For a Radio Shack hard drive this file is named TRSHD1 DCT TRSHD3 DCT or TRSHD5 DCT 2 Manually invoke the driver with the command SYSTEM DRIVE 2 DISABLE DRIVER TRSHDx Respond to any driver queries as you have done in the past This may include drive select address answered as 1 number of beads for this partition answered as 1 starting head answered as 1 3 Next bring up the second head with the command SYSTEM DRIVE 3 DISABLE DRIVER TRSHDx As before this is drive select address 1 1 head for the partition but starting head is answered as 2 4 Now BACKUP all of the files from the floppy SYSTEM disk to the old hard drive s SYSTEM partition assumed to be head 1 currently assigned to drive 2 with the command Copyright 1991 MISOSYS Inc All rights reserved BACKUP 0 2 S I 5 Update the date convention of the hard drive partitions via
8. reread or overwritten Copyright 1991 MISOSYS Inc All rights reserved SETCOM This command has been added to the library It allows you to change and or display the parameters of the RS232 R or T device driver after the driver has been installed into memory Its command syntax is as follows SETCOM parms DEFAULT Set to system defaults shown below in brackets Baud n sets the BAUD rate 300 Word n sets word length 5 8 bits 7 Stop n sets stop bits l or 2 1 Parity sets PARITY ON OFF EVEN ODD EVEN BREAK n sets logical break character to n OFF DTR Data Terminal Ready ON RTS Request To Send OFF DSR Data Set Ready IGNORE CD Carrier Detect IGNORE CTS Clear To Send IGNORE RI Ring Indicator IGNORE SPOOL Three parameters have been added to this command Pause allows you to temporarily suspend despooling Resume allows you to continue despooling after a pause and Clear empties the spooling buffers without printing The command syntax for these added parameters is SPOOL Pause Resume Clear The spooler has also been improved to free up the memory it uses when turned off provided the spooler was the most recent module installed If the memory it used was trapped by a subsequent module s installation the spooler will re use its previous memory allocation and inhibit alteration of its previous memory and disk parameters SYSTEM The SYSTEM command used to select DOS features ha
9. the commands DATECONV 2 DATECONV 3 6 Now switch the hard drive SYSTEM partition to drive O and the data partition to drive 1 via the commands SYSTEM SYSTEM 2 SYSTEM DRIVE 1 SWAP 3 7 Now install the new configuration onto the BOOTing floppy via the command SYSTEM SYSGEN DRIVE 2 Note that you may also install any other sysgenable filters and drivers prior to issuing this SYSTEM command i e KI DVR MINIDOS FLT etc IMPORTANT NOTE If you ever have to re FORMAT a hard drive using the TRSFORMx CMD utility you will need to use the DATECONV CMD utility after the formatting is complete This ensures that the hard drive partition is marked as using the extended dating facility File passwords Passwords have been applied to most files on your LDOS disk This protection is for your benefit and will avoid inadvertent deletion or overwrite of a needed file For your information the following owner passwords have been applied to all password protected files SYSTEM All files with an extension of SYS BASIC All files with a filename of BASIC FILTER All files with an extension of FLT DRIVER All files with an extension of DVR HELP All files associated with the HELP facility UTILITY All other files with an extension of CMD RSOLTOFF A master password for all files LDOS customer support Support for this LDOS product is available through writing from MISOSYS Inc PO Box 239 Sterling VA 22170 0239 Cop
10. the first position of the text buffer by a SHIFT request Finally the SHIFT Z position to the end of text The page up CTRL U command will refresh the video screen so that the new first displayed line is thirteen lines previous to the current first displayed line The page next CTRL N request will refresh the video screen so that the new first line displayed is the last line of the current displayed text If the video display has fewer than 14 lines of text displayed the page next request will be ignored Text deletion TED provides five forms of text deletion in addition to the block deletion discussed later To delete the single character which appears under the cursor invoke the delete command via CTRL D This action will get rid of the character and all text which succeeded that character will be pulled back one position The CTRL D command also puts you into DELETE mode which is made apparent by the display of the word Delete in the status line The DELETE mode is active for only the next keyboard entry There are only four subcommands associated with the DELETE mode delete to beginning of line bol delete to end of line eol delete to top and delete to bottom TED will always prompt before performing one of these deletes Copyright 1991 MISOSYS Inc All rights reserved Deletion desired Command sequence delete to bol CTRL D then SHIFT delete to eol CTRL D then SHIFT delete to top CTRL D then SHIFT
11. 0 s from being received XON xxx Sets the XON character to xxx CTRL Q XOFF xxx Sets the XOFF character to xxx CTRL S lt CLEAR 8 gt provides a menu of LCOMM commands while on line lt CLEAR gt lt SHIFT gt lt 0 gt provides the execution of a DOS library command PATCH This utility has been enhanced to support the required finding of bytes matching a particular F format patch line prior to installing a D format patch A new parameter OPTION allows you to force or inhibit the required matching the default is to not require F format patch lines Coincidentally a new parameter REMOVE has been added to un install a D format patch that was installed with the appropriate required matching of F format patch lines The syntax of the PATCH utility is now PATCH filespecl CMD USING filespec2 FIX parms Yank Nullifies the effects of a previous X type patch Remove Nullifies the effects of a previous D F type patch Option ON Match F records before installing D patch OFFJ X hhhh Change file starting at address hhhh to data Drr pp Change file starting at record rr offset pp to data Copyright 1991 MISOSYS Inc All rights reserved Frr ppm Finds data at record rr byte offset pp Lnn Designates DOS library command ISAM number data hexadecimal values of the form xx xx Xx ASCII values of the form abcdefg SOLE SOLE is a Model I utility file which is used to install a double density booting driver
12. Copyright 1991 MISOSYS Inc All rights reserved LDOS 5 3 1 Upgrade Documentation Cat No M 10 X33 LDOS 5 3 1 Upgrade to LDOS 5 1 4 for Model I III A AS MISOSYS Inc September 9 1991 LDOS 5 3 1 Model I Users Dear Folks This letter provides four patches which are for the Model I version of the LDOS 5 3 1 system recently released The patches are listed on the reverse side of this letter Although the letter is being sent to all recipients of the Model I 5 3 1 some disks will already have the first two patches applied Please confirm this by noting the contents of the README TXT file found on the LDOSXTRA diskette The following notes the necessity for each patch FDUBLI This is applied to FDUBL CMD to permit it to operate properly with a Percom type doubler FDUBL works correctly when used with a Radio Shack doubler I recommend it be applied even if you are using a RS type doubler for uniformity SOLE1 This is applied to SOLE CMD to enable it to properly install the booting driver for a Percom type doubler SOLE works correctly when used with a Radio Shack doubler I recommend it be applied even if you are using a RS type doubler for uniformity SOLE2 This alters SOLE so that the entire cylinder O is shown as allocated after the double density booting driver is installed This must be applied if you are using SOLE After the patch is applied you must re SOLE your double density booting disks to guard against ov
13. Copyright 1991 MISOSYS Inc All rights reserved SYSTEM TRACE 0N OFF Displays or removes the Z80 Program Counter in the upper right corner of the video display TIME The TIME command has been enhanced to provide for turning on or off the video screen clock display The syntax of this command is TIME hh mm ss CLOCK 0N OFF hh mm ss Sets Time to hh hours 00 23 mm minutes 00 59 and ss seconds 00 59 ss defaults to 00 if omitted CLOCK Turns on or off the video clock display TOF This command has been added to the library It will emit a form feed character 12d to the PR device If the printer is currently unavailable the command does nothing Utility Command Changes BACKUP This utility has been changed to allow it to construct a SYSTEM disk from a formatted DATA disk The VIS parameter has been dropped The INV parameter has been altered to designate that files invisible to the directory are to be included as well as visible files The SYS parameter has been altered to designate that system files are to be included in addition to visible files SYS also reconfigures a DATA disk into a SYSTEM disk by allocating directory entry codes for SYS files in the hash Index Table Both Model I and Model III versions of BACKUP can perform a mirror image duplication of a Model I dual density system diskette provided the destination diskette has been previously formatted with a dual density configuration FORMAT
14. OS 5 3 1 release is an upgrade or the LDOS 5 3 0 and 5 1 4 operating systems Several important changes have been made to extend and enhance the operating system and its utilities The date ranging has been expanded to accept dates from January 1 1980 through December 31 2011 The directory information for a file will now include a modification time stamp hours and minutes in addition to the date stamp The DATECONV CMD program is provided to update versions 5 1 4 or earlier LDOS disks to the 5 3 style of dating Note that this directory convention is that used in LS DOS release 6 3 The access password has been eliminated from the system in order to allow ample directory space for the date and time extensions The update password has been retained In order to convey a naming convention similar to LS DOS 6 x this password is now termed the owner password thus any reference to the update password is assumed to reference the owner password and vice versa Additions changes to Included files The following is a brief description of files added since 5 1 4 BASIC CMD The disk BASIC interpreter previously named LBASIC CMD BASIC HLP A file of HELP information for BASIC BASIC OV4 A BASIC overlay to dump a list of active variables DATECONV CMD A utility to update LDOS disks earlier than 5 3 DOS HLP A file of HELP information for DOS HELP CMD A utility used to access the HLP files SOLE CMD A Model I utility to install a DDEN boot driv
15. UTO A e 7 CLOCK on ans 8 O A A eer ORT ee re OP 8 COPY dt Ae A Ae 8 CREATE cuado asiaan nidad dada da tad 8 A aug aid ase We a a a 11 DEBUG eh beds sis a 11 DEVICE A OP Re Ore 11 Dl 11 A OO 12 FORMS rona AA ee 12 FREE ia 13 A A eee reo eRe OE re 13 AAA A 13 LIS Tiana ricicadaacaradanica oad Gets cidcid aca 13 MEMOR o a ad i 14 FREES BED RN 14 POUT G2 lee A a eee ae ee ee 15 BE CONE tesis Teee ais ol laced dl e To lodo 15 SPOOL esio rnn nsa canada idad id 16 SYSTEM ompa anten a SC a a N A E A 16 A RN 18 BACKUP it AS 18 FORMA Toeni e A AAA AA A A nea 19 LOCO MM 19 O A A eee 20 SOLE careers Gece SB ee Lene net ets 20 A eave vane ananassae AGRI add eed a 21 KEDAR A Maaco Ais ae iia 21 RS2323 DV Rasta airis il 21 NUNTDO SE aid 21 A A 21 DATECON V as sicvscai adan ada dados 22 BASIC Enhancement cai ais 23 Single key edit commands vomito peas absindiss 23 INPUT Onorina O Ea aa e ataa ea aera Ea ae Ei 23 CMDS V eere ae sis hg a e SP aa ae Wee ea a a e OAE eae 24 TED ASCH Text EA a a o a aa duct edie 25 Summary of editing commands 5 lt csccs scsyssssddbectevasivsescatesedavesbeavasaabvesdccideesnvaens 25 JEA aite E a D Satie ae sate E E E E EE A E E E 26 Textentry Modes Serene aiei AA A 26 Loading LEXU TUNE iiuciiicanosado rudacida acta Dia dad 27 ERC 1 E AE E IA E E ads 27 Cursor positioning manipulations esssssesssssseresserestserresssrrersssrresrssreesrsereessse 28 Text deletion A A hea 28 Block Opera ide 29 Fili
16. can find no properly marked block it will display the error message Marker and terminate the block mode Another error which could occur is when the position you wish the block copied into happens to be in the interior of the block itself You will be informed of this prohibition by a display of the error message Cursor The successful block copy operation only copies the marked text the markers are not copied as well In fact the marked text remains in its original position relative to the text which surrounds it The cursor position relative to the text will be unchanged after the block is copied however the screen may be refreshed and the physical location of the cursor on the screen may be different A block of text may be MOVED from one position to another by a command sequence similar to the block copy In this case simply mark the beginning and end of the block as discussed above move the cursor to the position in the text where you want the marked block moved to then invoke the block MOVE command via the sequence CTRL B followed by M Again note that the block which will be moved is the first marked block found in the text buffer This operation is essentially one of copying and automatic deleting without the double check prompt As in the case of the BLOCK COPY the same errors are possible with similar diagnostic messages when things are not as they should be With the BLOCK MOVE command the new cursor position will be the ne
17. d several improvements You can now install display or invoke an AUTO command on any drive not just the SYSTEM drive The syntax is now AUTO d dos command executes the AUTO command on d displays the AUTO command currently on d d the designated drive otherwise drive 0 is used Disables the lt ENTER gt and lt BREAK gt keys during BOOT dos command any DOS command up to 31 characters in length Copyright 1991 MISOSYS Inc All rights reserved CLOCK The clock command has been moved to the TIME library command The new syntax to enable or disable the screen display of the real time clock is TIME CLOCK 0N OFF CLS This command has been added to the library It clears the video screen It s syntax is CLS COPY When copying from a 5 1 x or earlier version disk to a 5 3 disk the old access password if any will be removed and the 5 3 style date time information will be established the time being set to 00 00 00 Note COPY should NOT be used to move System S YS files from one disk to another Use BACKUP for this purpose CREATE New parameters FILL and SHRINK have been added The fill parameter allows you to specify a particular character to propagate throughout the created file Shrink is used to flag the file for de allocation of unused space once data is written to the file To refresh your mind here is the syntax of this command CREATE filespec parms Lrl 1 Sets the Logical
18. designed to be a full featured word processor TED was designed for you to be able to rapidly enter a full screen text editing environment while accomplishing many of your text file editing tasks Summary of editing commands The following are the command keys and their functions as supplied by TED Once you become familiar with the operation of TED this section may be all you need to refer to from time to time to jog your memory Action Key Entry Move the cursor one position left or CTRL H Move the cursor one Position right or CTRL I Move the cursor one position down or CTRL J Move the cursor one position up or CTRL K Move the cursor to the beginning of the line SHIFT LEFT Move the cursor to the end of the line SHIFT RIGHT Move the cursor to the end of the text SHIFT DOWN Move the cursor to the beginning of the text SHIFT UP Toggle overstrike insert modes CTRL A Specify a BLOCK CTRL B Specify DELETE CTRL D FILE the text buffer to disk CTRL F GO find the next search string match CTRL G LOAD a text file into the buffer CTRL L Command confirmation or advance to next line ENTER or CTRL M Go to the NEXT video page CTRL N PRINT the entire text buffer CTRL P QUERY a directory CTRL Q REPLACB searched string with new string CTRL R SEARCH for a string CTRL S Go UP to the previous video page CTRL U EXIT the text editor CLEAR SHIFT Invoking TED TED is invoked via the command TED filename TXT
19. e loaded If any disk read error is encountered while Copyright 1991 MISOSYS Inc All rights reserved reading the text file into the text buffer the message IO error will be displayed The text which was loaded up to the point of encountering the error will be retained in the text buffer Entering Text Entering text is easy you just type away If you already have text in the buffer and wish to enter new text at the end just move the cursor to the bottom via the SHIFT Z key then type in your text If you wish to enter new text at some other point just position the cursor toggle to the insert mode then type away TED will stay in insert mode until explicitly toggled back to overstrike mode As you are entering text any word which is too long to fit at the end of a video line will be split at the 64th column and continued onto the next line These long words are not automatically bounced onto the subsequent line as is the ease with the typical word processor Cursor positioning manipulations The ARROW keys are the primary tools to move the cursor They will move the cursor in the direction indicated by the arrow The shifted arrow keys will be interpreted as cursor movement requests unless TED is in the DELETE or BLOCK modes The SHIFT request will move the cursor to the first position of the current line The SHIFT request will move the cursor to the last position of the current line You can position the cursor to
20. en added to allow you to display or alter the operating parameters of the PR FLT forms filter once the filter has been installed The syntax of the FORMS command is FORMS parms Default Sets all parms to defaults Addlf Adds a linefeed after a carriage return Chars n The number of characters per printed line Ffhard Use 12d for form feed rather than linefeeds Indent n Indents n spaces on lines longer than chars 0 Lines n The number of lines printed per page 66 Margin n Sets the left margin 0 Page n Sets physical page length 66 Tab Expands tab characters to tab stops OFF XLATE X aabb Translates aa to bb 00 00 Copyright 1991 MISOSYS Inc All rights reserved FREE The display format of the FREE command has been improved It will now display the identical disk configuration information as displayed by the header of the DIR command KILL This command has been improved to allow you to specify more than one device specification on the command line Its new syntax is KILL filespec devspec filespec devspec LIB The LIB command has been improved to always produce a correct display regardless of the compressed spaces vs special characters state of the video driver LIST This command has been considerably revised The hexadecimal display mode now produces a combined hexadecimal ASCI display of a complete 256 byte record The older format is still available by turning off the compressed display mode via
21. er TED CMD A full Screen ASCII text editor FDUBL CMD A Model I double density disk driver which replaces RDUBL CMD and PDUBL CMD Note The 5 1 4 files designated LBASIC OV1 LBASIC OV2 and LBASIC OV3 are designated as BASIC OV1 BASIC OV2 and BASIC OV3 under 5 3 1 Backing up your master LDOS disk It is recommended that you make several backup copies of the 5 3 1 master disk s The simplest way in a two drive Model III system is to boot up the 5 3 1 disk insert a blank or otherwise re usable disk in drive 1 and type the command OFB 0 1 This procedure assumes that both drives O and 1 are 40 cylinder drives When the copy finishes you can insert another destination disk and duplicate another copy Model I users will find QFB on disk 2 thus you may boot up the 5 3 1 system disk place QFB in drive 1 issue the command noted above then replace the LDOS disk in drive 1 with Copyright 1991 MISOSYS Inc All rights reserved the blank diskette Repeat the sequence using the LDOS disk 2 as the drive 0 source disk after the prompt from QFB It is important that you do NOT switch between versions 5 3 1 and any earlier version system disk in drive 0 without rebooting your computer Also once you have updated a disk with the DATECONV CMD program do not write to that disk using an earlier release of LDOS As noted above LDOS 5 3 x data disks are completely compatible with LS DOS 6 3 x data disks Either may be read from or wri
22. erwriting the boot driver at some future time when your system disk gets full SYS011 This is a mandatory patch to SYSO SYS I cannot understand how the error caused by an addressing problem during program generation escaped detection It appears to have been masked by a quirk in the Z80 CPU which caused execution of an invalid Z80 instruction in a manner consistent with a valid Z80 instruction but under only certain circumstances In any event apply the patch then re boot for it to take effect Sincerely signed Roy Soltoff Post Office Box 239 Sterling Virginia 22170 0239 703 450 4181 Table of Contents EDOS 3 31 Updates ds 1 A A O te sae aunts aos 2 LDOS 5 3 1 Installation INStrUCTIONS cooooocccnnnonccnnnnannnnnnnnnonancnnnnonnnnnnnnonnnnnnnnnnnnnnnnnns 2 Additions changes to included files ooooocccnnnoncccnnnaoocnnonnnonannnonanoncnnn ono nncncnnnnnnnoos 2 Backing up your Master LDOS disk cuina sia 2 Updating your existing disks visita canes 3 Updatins DATA disks varie se n A A RES 3 Updating SYSTEM disks Model lll oooonnnnccnnnnccnnnoccnonoccnonaccnnnancconnnccnnnnno 3 Updating SYSTEM disks Model To oooooonoccccncccccnnnnooncccnococononanannnccnncnconnnnnnns 4 Updating Radio Shack HARD disks oooonoonnnncccnnncccnnnnoconancnnncccnnnnnnannnnononcccnnannnns 5 Pile passwords srt ii tai 6 LDOS customer SUPppoOrt eiii air pi ii cee kisis nita 6 Li Brary command COI A A en hee a 7 ALTRE ii 7 A
23. ffer area into a disk file When you depress CTRL F you will be prompted for the name of the file If the file specification you wish to use has an extension of TXT you do not have to enter the extension If the extension is omitted from your entry TXT will be automatically provided The FILE command will save the entire text buffer excluding the terminating NULL but including any block markers into the disk file identified by your input If any disk write error is encountered while saving the text buffer into the disk file the message I O error will be displayed In any case the text buffer is left undisturbed Text search TED provides the SEARCH command to scan the text buffer for a specified string of characters You specify the search by invoking the command with CTRL S TED then prompts you for the search string with the query message String You can enter up to 23 characters to be used for the search string Terminate your search string with an ENTER which is not included as one of the 23 characters TED will then look for the string starting with the first character following the cursor The matching is case sensitive which means that characters entered in upper case must be found in upper case and characters entered in lower case must be found in lower case If the search string cannot be found the message Can t will be displayed At this point the cursor location remains unchanged If a matching string of tex
24. isplay current line period lt gt Edit current line comma lt A gt nl inc AUTO line nl with increment lt C gt nl n2 Copy line nl to line n2 lt D gt n1 n2 Delete line s n1 through n2 lt E gt nl Edit line nl lt L gt n1 n2 List line s n1 through n2 lt M gt nl n2 Move line nl to be line n2 INPUT This provides a much requested facility of controlling keyboard input to a string variable with prompting and screen field highlighting Two forms of INPUT are supported One provides the minimal improvement of allowing the input prompt to appear starting at a designated video position similar to a PRINTE statement The second form is more powerful It allows you to specify an input field width an input field fill character whether the input should be alphanumeric or just numeric and whether the input should automatically terminate when the field width number of characters have been entered rather than requiring a hard lt ENTER gt The two forms of INPUT are Copyright 1991 MISOSYS Inc All rights reserved INPUT pos message var var INPUT pos message fw var pos The screen position for the message or field var Variables used to store the data retrieved fw The maximum input field width lt 1 240 gt Specifies acceptance of characters lt 32d 127d gt Specifies acceptance of characters lt 0 9 period minus plus gt Specifies immediate lt ENTER gt on maximum input f De
25. isplayed as small graphics block You can also overstrike either a begin block marker or an end block marker You can be in overstrike mode when you come to the end of the text or starting from an empty text buffer for that matter and still be able to enter text in this mode When you switch to insert mode anytime you enter an acceptable text entry character the entire text will be pushed down one position starting from the character under the cursor to make room for the inserted character The video screen will be constantly updated as text is inserted The text entry mode is only changed via the CTRL A command Going into delete mode does not change the mode of text entry Loading a text file The CTRL L command is used to load a text file into the text buffer area When you depress CTRL L you will be prompted for the name of the file If the extension is omitted from your entry TXT will be automatically provided The LOAD command will not automatically clear any text remaining in the text buffer prior to the LOAD The new text is not inserted at the cursor position but rather is appended to the end of the current text If you wish to load the new file over the old text simply invoke the command sequence SHIFT followed by CTRL D then SHIFT Z This will delete the entire text buffer If the file is too large to fit into the available text buffer the error message No room will be displayed and no text will b
26. llows for printing the memory map RESET Parameters LRL and DATE have been added RESET filespec LRL n alters the logical record length of the file to the value n appropriate values of n are in the range 0 255 with O implying a record length of 256 The DATE parameter is used to allow the file s directory date to be altered Specifying RESET filespec DATE OFF restores the file s directory entry to the old style dating of pre x 3 release The old user password field will be set to blanks This may be useful for files which must be transferred to an older DOS release such as by the TRSDOS 1 3 CONVERT utility Specifying RESET filespec DATE ON will establish the file s directory date as that of current system date and time Note that when this option is specified the MOD flag will be set to indicate a file change The syntax is RESET filespec Lrl n DATE ON OFF ROUTE This command has been improved in two ways First a new parameter REWIND has been added which allows you to start the routed file at its beginning Second the command has been improved by allowing it to reuse the previously installed hut currently unused high memory support module of a previous ROUTE of the same device To refresh your mind the ROUTE command s syntax is as follows ROUTE devspecl TO filespec devspec2 parms NIL Specifies that devspecl is routed to a bit bucket Rewind Resets the file pointer of filespec so existing data can be
27. lso certain characteristics of the disk itself are displayed A replica of this display is Drive diskname diskdate cyldh Free fffff f sssss s Fl mmm nnn Filespec Attrib LRL Recs EOF DE File Size MOD Date Time Filename ext SIP pp Irl rrrrrr eof de s sssss s dd mon yy hh mm drive number diskname name of the disk diskdate date of the disk cyl number of cylinders on the disk Copyright 1991 MISOSYS Inc All rights reserved d disk density S single D double H hard h Number of heads on the disk fffEf f Amount of free space in K SSSSS S Total formatted space in K mmm Number of free file slots nnn Total number of file slots filename The name field of a file ext The extension field of a file SIP Attributes indicating Sys Inv Prot PaDS Mod pp The protection level NO EX RE WR NA KI FU Irl The file s logical record length rrrrr The number of records in the file eof The position of the last byte in the last sector de The number of directory extents occupied by the file SSSSS S The total space used by the file s records dd mon yy The date of last modification hh mm The time of last modification 00 00 23 59 DO The DO command has been improved First parameter strings of any ASCII character are acceptable by enclosing them within double quotes Second JCL compilation will search for the first available drive which is not write protected for writing the SYSTEM JCL file FORMS This command has be
28. nder normal use for a period of 30 days after the date of original purchase If during this 30 day period a defect in the diskette media should occur you may return the diskette to MISOS YS for replacement without charge Except as provided for above MISOSYS makes no warranties either expressed or implied with respect to this software or its fitness for any purpose MISOSYS software is provided as is Should the software prove defective the buyer assumes the entire cost of all necessary servicing repair or correction and any incidental or consequential damages MISOSYS assumes no liability for direct indirect incidental or consequential damages resulting from any use of or any defects in the software MISOSYS Inc P O Box 239 Sterling VA 22170 0239 XLIZOO Hoyo IO LO 0 OD O Te GD Copyright 1991 MISOSYS Inc All rights reserved F Apply via C Eop DUBL FIX Patch Patch corrects ins to Model tall a PATCH FDUBL D 74 55 X 5574 3E 2C 32 0 DR SOLE1L FIX Patch to LDOS Corrects installation Apply via DOO 8D 55 FOO 8D 52 D00 8F 08 FOO 8F 04 56 52 Eop SOLE2 F Fix alters Apply via 1 15 CD 2C 1 15 FD 56 1 41 45 1 41 2C 2 6B FD 56 2 6B 50 68 2 8F 20 2 8F 0A Eop SYSO11 FIX Apply via D05 EF CB 4B F05 EF FF 46 DOA 39 FD E9 FOA 89 0 O 00 Eop whe
29. ng away your text to a disk file ooonnnnnonncononnnnnonononanaccnnnnnonnnnnnnnnnncnncnnnnns 31 O 31 TES Cl Ang ela 32 Printing ted aia 33 Ds A tees e o ea E E E E E EErEE eee 33 Extins dtom TED 33 IKSAN A E E EE E e EEEE 33 Software License Agreement 3 5ciscisicccneeasecisvaenseanccseyeeosdansartecasyesueuvebaanveasscdoseayaasy 34 Limited Wart anty soe ocala be ede ee E 34 Copyright 1991 MISOSYS Inc All rights reserved LDOS 5 3 1 Update The LDOS 5 3 release is a major enhancement from the 5 1 x release of LDOS Although there have been improvements to most library commands utilities and BASIC 1t is not prudent at this time to provide documentation as replacement pages to your user manual You are being provided documentation covering the changes since the 5 1 4 release A completely new user manual may be made available at a future time Documentation of a technical nature used by programmers has appeared in an issue of THE MISOSYS QUARTERLY available on a subscription basis There may be a file named README TXT on the LDOS disk Disk 2 for Model I If so this file will contain important information which may not appear in this printed documentation You should read this file by issuing the command LIST README You can continue to use your 5 1 x disks with version 5 3 as long as you update them as explained in the installation instructions The following is a brief guide to version compatibility Disks from earlier
30. old configuration then you will have to recreate your desired configuration once again and save it using SYSTEM SYSGEN Updating SYSTEM disks Model I It is recommended that you do not attempt to update your old Model I system disks Instead use working copies of the new LDOS 5 3 1 system disks If your Model I is equipped with a double density adapter you may wish to make a double density boot disk using the following procedure 1 Boot the LDOS 5 3 1 system disk and issue the command FDUBL Tandy Percom choosing one of the two parameters depending on the type of adapter present in your machine Note that FDUBL defaults to the Tandy parameter 2 Place a blank disk in drive 1 and issue the command FORMAT 1 SYSTEM and respond to the queries with the desired diskette configuration data 3 Move the files from the system disk to the newly formatted diskette with the command BACKUP 0 1 SYS INV 4 Save your configuration by issuing the command SYSTEM SYSGEN DRIVE 1 5 Install the double density boot file by issuing the command SOLE 1 Copyright 1991 MISOSYS Inc All rights reserved 6 At this point remove both diskettes then place the double density DOS disk into drive 0 Insert the LDOS diskette 2 into drive 1 and copy the files from it to drive 0 and re save the configuration with the commands BACKUP 1 0 INV SYSTEM SYSGEN 7 Make additional copies of this double density system diskette
31. omatically load a driver which supports the CTRL key the function keys and CAPS RS232x DVR The serial driver provided with your system has been enhanced to provide for the selection of a received logical BREAK character rather than arbitrarily using a code of 01d Note that BREAK normally defaults to OFF thus no received character will be Copyright 1991 MISOSYS Inc All rights reserved interpreted as a BREAK for the purposes of the system s keyboard scanner The driver parameters may also be altered after the driver is installed by using the SETCOM library command documented earlier MINIDOS FLT This keyboard filter has been improved to allow the repeat last DOS command to properly function regardless of the filter s position in the keyboard device chain PR FLT The PR FLT filter program has been enhanced to allow its operating parameters to be changed after the filter has been installed into memory See the FORMS library command previously documented The printer driver portion also supports a ten second timeout enabled or disabled with the SYSTEM PRTIME command HELP The HELP facility has been added to provide on line help information for both DOS commands and disk BASIC statements functions The HELP displays use the following notations Optional arguments or parameters note that some Model I Systems will display these characters as and Alternative selection ONIOFF means ON or OFF lt gt Key combination yo
32. osition will be indicated on the display by a begin marker which is inserted by TED into the text The marker is displayed as a graphic left bracket The ending position will be indicated on the display by an end marker which is also inserted by TED into the text The marker is displayed as a graphic right bracket These markers occupy ordinary text positions thus they may be deleted or overstriked Any remaining in the text buffer at the time a FILE command is performed will be written to the disk file just as if they were ordinary text characters Although you can mark as many blocks as your heart desires TED provides no way to differentiate between marked blocks in other than the BLOCK DELETE function For copying and moving blocks the first block marked in the text is the one chosen for copying or moving On the other hand a BLOCK DELETE request requires that the cursor be positioned within the interior of the marked block which is to be deleted To COPY the first marked block in the text to some other position simply mark the beginning and end of the block as discussed above move the cursor to the position in the Copyright 1991 MISOSYS Inc All rights reserved text where you want the marked block copied into then invoke the block copy command via the sequence CTRL B followed by C Note that the block which will be copied is the first marked block found in the text buffer A few things could go wrong with your request If TED
33. r Specifying SYSTEM PRTIME ON establishes an approximate 10 second time out on printer unavailable Specifying SYSTEM PRTIME OFF disables any time out if the printer is unavailable the DOS will hang The default is OFF SYSTEM SMOOTH ON OFF Alters the floppy disk driver so that the system interrupts are disabled earlier than what would otherwise occur This has the effect of providing faster I O with disk drives precisely aligned to 300 rpm where extra sector retries would be necessary Note that when SMOOTH is turned ON you will not he able to type ahead during disk I O nor will you be able to effectively use dump to disk ON with LCOMM even at 300 baud SYSTEM SWAP s DRIVE d Exchanges drive s with drive d The command is functional while JCL is in execution even if one of the referenced drives holds the executing JCL file If one of the designated drives is the SYSTEM drive and JCL is in execution the other designated drive must contain a SYSTEM SYSTEM SYSGEN 0N OFF DRIVE d This command creates or deletes a configuration file ON creates a configuration file on drive d OFF removes the configuration file from drive d DRIVE d specifies the drive for SYSGEN default is 0 SYSTEM SYSTEM n If the designated drive does not contain the DOS and JCL is in execution the command will abort otherwise you will be prompted to entera SYSTEM disk This command is equivalent to SYSTEM SWAP n DRIVE 0
34. s been improved by the inclusion of additional parameters and enhancement of some existing ones The ALIVE BLINK and UPDATE modules can now be removed from memory The DRIVE parameter now pertains to the SYSGEN parameter so that the configuration may be targeted to a specific drive The Model III FASTISLOW parameters have been adapted to utilize the Model 4 hardware clock speedup while still maintaining an accurate time clock Model II users should not specify FAST without an appropriate hardware Copyright 1991 MISOSYS Inc All rights reserved speedup A SMOOTH parameter has been added for faster disk I O involving floppy drives aligned precisely to 300 rpm A SWAP parameter has been added that with DRIVE allows you to switch the logical drive assignments of any two drives even with a JCL command line The SYSRES parameter has been improved to have the system overlay use only the amount of high memory normally used by the overlay when it is resident in the system overlay region The TRACE command has been removed as a separate LIBrary command and is now a parameter of SYSTEM The TYPE parameter was altered to just inhibit the type ahead operation rather than removing the type ahead task Lastly an option to enable or disable printer time out has been added Here is the syntax of the changed parameters SYSTEM PRTIME ON OFF This option is only applicable when the PR FLT is installed as it uses the printer driver resident within the filte
35. signates a field fill character _ var The string variable to receive the input When using the second form the single input variable will always be a string variable and the input regardless of designated type will always be a string of characters Note that since the immediate lt ENTER gt on maximum input character is examined before the programmed fill character you cannot designate an asterisk as the fill character unless you specify the forced immediate lt ENTER gt Thus will be interpreted as accepting numeric only immediate lt ENTER gt on full field and use an asterisk as the fill field character On the other hand will default the field fill character to an underline CMD V This BASIC extension can be used to dump a list of active variables and their values and user defined functions while a program is running or after it was interrupted or ended The syntax of this command is CMD V DO PR S A x DO PR Designates the output to either device DO S Restricts output to scalars only A Restricts output to array variables only x Restricts output to variables starting with x Copyright 1991 MISOSYS Inc All rights reserved TED ASCII Text Editor The text editor TED is a full screen quick text editor with typical word processing type features four directional cursor movement bi directional scrolling text directional delete large text buffer etc however TED was not
36. t is found in the text buffer it will be replaced with the REPLACE string The display window will be redrawn starting with the line which contained the string which was replaced The cursor will be repositioned to the first character immediately following the replacement string If you wish to replace the next occurrence of text which matches up with the SEARCH string with that same REPLACEMENT string all you need do is CTRL R ENTER The GO command CTRL G still functions to find the next occurrence of the SEARCH string If that occurrence of the string is beyond the text currently displayed on the screen and you wish to confirm its replacement simply GO to the next occurrence then REPLACE as necessary Printing text TED provides the CTRL P command to print the entire text buffer If you want to print just a block of text use the BLOCK PRINT command Obtaining a Directory TED provides the CTRL Q command to obtain a directory of files After the Drive prompt enter the desired drive specification as either d or d You may also restrict the display to files matching a particular file extension by entering a 4 character string preceding the drive as in TXT 1 a dollar sign in any extension character position designates a match on any character Depressing ENTER after a directory query will restore the text screen image Exiting from TED To exit TED and return to DOS Ready use the CLEAR SHIFT command If the te
37. t is found in the text buffer it will be displayed The display window will be redrawn starting with the line which contains that string The cursor will be repositioned to the first character of the matching string If you press ENTER only in response to the String query then the search will proceed with the last entered search string providing one was available Using this procedure you can advance the cursor to each occurrence of the search string in question Another way to find each occurrence of a search string is with the GO command CTRL G Each depression of CTRL G is identical to the sequence CTRL S followed by ENTER Text search and replace TED also provides the capability of replacing a text string matching the search string with a different string the replacement string When the REPLACE command is invoked via CTRL R the query message String will be displayed The query same as for SEARCH is asking you for the replacement string You can enter up to 23 characters to be used for the replacement Terminate your string with an ENTER which is not included as one of the 23 characters TED will then look for the currently pending SEARCH string starting with the first character IMMEDIATELY under the cursor If the Copyright 1991 MISOSYS Inc All rights reserved SEARCH string cannot be found the message Can t will be displayed At this point the cursor location remains unchanged If a matching string of tex
38. the C OFF parameter Both the hexadecimal and ASCII display modes will produce paged displays stopping when the display screen fills Depress lt ENTER gt for the next page or lt C gt to continue The N abbreviation for the NUM parameter has been eliminated N now allows an override to the paged display to produce a non stop display This operation is similar to the N parm of the old and new DIR command Finally the TAB parameter has been enhanced to accept a tab column number between 1 and 32 with a default of every 8 columns To refresh your mind the LIST command s syntax is now LIST filespec TXT parms Ascii8 Will allow full 8 bit output NUM Sets line numbering mode for ASCII text N ON Sets non stop display mode assumed if P is selected Hex Sets hexadecimal output format C OFF Turn off compressed display mode for hexadecimal output Tab n Set tab stops and expansion for ASCH list n 1 32 8 P Directs output to the printer LINE n Starts listing at line n in ASCH list Rec n Starts listing at record n in HEX list Lrl Sets logical record length in HEX list Copyright 1991 MISOSYS Inc All rights reserved MEMORY This command has its display improved to report on the modules resident in protected memory This requires that all installed modules adhere to the LDOS design specifications of memory resident modules which has been a part of the LDOS system since January 1 1982 An added P parameter a
39. tten to with either LDOS 5 3 x or LS DOS 6 3 x Updating your existing disks To update your existing LDOS 5 1 x disks boot up with a fresh copy of your new version 5 3 1 LDOS disk The LDOS 5 3 1 disk should remain in drive 0 throughout the update procedure There are two separate methods for updating 5 1 floppy disks depending on whether they are system disks or data disks Note that you need do nothing to 5 3 0 data disks Updating DATA disks Place the LDOS 5 1 4 DATA disk in drive 1 and issue the command DATECONV 1 This completes the conversion of a DATA disk Updating SYSTEM disks Model HI Updating system disks will take two or more steps Place the 5 1 disk in drive 1 and issue the command BACKUP 0 1 INV SYS OLD It you want to use any of the new files included with the 5 3 release move them to drive 1 with a command of the form BACKUP filespec 1 where filespec designates the new file you wish to copy Once the BACKUPs are completed issue the command DATECONV 1 Copyright 1991 MISOSYS Inc All rights reserved This completes the updating of a SYSTEM disk Note that Model 4P users must ensure that the file MODELA III is on your working LDOS system disk The MODELA III file 1s distributed with your DOS 6 x disk IMPORTANT NOTE If you have a sysgened configuration file on your old now updated SYSTEM disks you will have to boot that disk while holding down the lt CLEAR gt key to inhibit the
40. u press Help screen format Brief description Command Syntax Parameter descriptions Help information is retrieved by entering commands of the form HELP file command P file is the name of an available help data file command is the name of one help file entry if omitted the list of entries is displayed P sends the help display information simultaneously to the printer Copyright 1991 MISOSYS Inc All rights reserved DATECONV This utility program has been added to convert DOS data disks earlier than this 5 3 release to the extended date and time stamp usage SYSTEM disks must first have the DOS files moved to them via BACKUP then processed by DATECONV BASIC Enhancements The disk BASIC interpreter has been improved by several additions and the name has been changed to BASIC CMD First two more edit functions have been added These are the ability to copy a BASIC program line to another line number and the ability to move a BASIC program line to another line number No automatic renumbering of imbedded line number targets is done so you will still have to adjust the targets of any GOTOs GOSUBs etc These two edit additions have been added to the BASIC OV3 overlay file so that overlay must be present on line for you to be able to use those two commands Single key edit commands lt gt Cursor up one line lt gt Cursor down one line lt gt Cursor to first line lt gt Cursor to last line lt gt D
41. versions of LDOS should be converted with the DATECONV utility program before being used with 5 3 Unconverted disks will work but the time and date information will not be correct Disks formatted and written to by a DOS other than LDOS should first be REPAIRed or use CONV then processed with DATECONV If a disk written to with 5 3 is used with an earlier version of LDOS or some other DOS it may appear to have an unknown password If the file was previously password protected access may not be possible without knowing the owner password To prevent this use the COPY library command with the CLONE NO parameter when moving files from version 6 3 to earlier versions or other DOS disks You should not use an LDOS 5 3 disk with earlier versions of LDOS nor any version 6 TRSDOS except LS DOS 6 3 or later LDOS 5 3 disks may be freely used with LS DOS 6 3 disks BOOT up changes Since version 5 3 now stores a modification time as well as a date you will be prompted for the time when booting the computer You can enter the time in the format hh mm ss or hh mm or hh according to the prompt If you wish to suppress this time prompt issue the command SYSTEM TIME OFF DRIVE d where d references the disk drive containing your BOOTing floppy The time prompt may be re activated by the command noted above if OFF is replaced with ON Copyright 1991 MISOSYS Inc All rights reserved LDOS 5 3 1 Installation Instructions The LD
42. w position of the moved block The screen may be refreshed and the physical cursor position altered to accommodate this request The block operation deletion is similar to the above functions you first must mark the block s beginning and ending positions You must then position the cursor to the interior of the marked block and invoke the command with the sequence CTRL B followed by D As a safety check TED will prompt you before deleting the block It is necessary to depress ENTER to affirm your intentions Any other character entry including a Y will cause TED to ignore the block delete request The same errors as for copy and move can occur however the messages may not be for the same reasons When a block delete is requested TED will first look for an ending block marker starting from the cursor position If none is found the error displayed will be Marker This doesn t mean necessarily that a properly marked block is missing On the other hand if an ending marker is found past the cursor position TED next scans forward for a beginning block marker A Marker error will also be posted if none is found If a marker is found but is also past the cursor position a Cursor error will be posted The PRINT block operation will cause the first marked block to be printed Copyright 1991 MISOSYS Inc All rights reserved Filing away your text to a disk file The CTRL F command is used to FILE the contents of the text bu
43. xt buffer is empty TED will immediately terminate If however if there is any text in the buffer you are provided an opportunity to retract your request TED will display the prompt message Press ENTER to exit Text recovery If you exit the TED application inadvertently without saving the edited text TED permits you to re enter with the asterisk parameter which provides a chance to recover your text Instead of automatically clearing the text buffer as TED does TED will display whatever is in the text buffer memory area Thus if you have not altered any of the information in that memory area you can always go back and recapture it Copyright 1991 MISOSYS Inc All rights reserved Since all of the text pointers normally established by TED will not be initialized when invoking TED via the parameter it will be necessary to scroll through the text until reaching its last character prior to doing any other operation This may also be performed using NEXT PAGE Software License Agreement The LDOS 5 3 1 software update and documentation is copyrighted with all rights reserved by MISOSYS Inc The buyer is granted a license to use this software on one computer system at a time and may make copies for personal use and archival purposes only Copying this software for sale or other distribution is expressly prohibited Limited Warranty MISOSYS warrants the diskette media on which the LDOS 5 3 1 is recorded to be free from defects u
44. yright 1991 MISOSYS Inc All rights reserved LIBrary command changes ATTRIB The UPDATE password field has been re designated as the OWNER password field this is a name change only The access password field has been removed from all files so the ACC parameter is no longer valid The DOS now assumes a blank access password for all files If a protection level has not been assigned to a file full access will automatically be granted regardless of any owner password The OWNER password will still be required for full access on password protected files that have a protection level other than FULL To have a file that allows no access whatsoever without the use of the OWNER password change the protection level to NO ATTRIB filespec OWNER a PROT b VIS INV ATTRIB d LOCK UNLOCK MPW aa NAME bb PW cc Parameters for filespec attributes OWNER the new owner password VIS makes file visible to a directory command INV makes file invisiblc to a directory command PROT the new protection level NOne EXec REad WRit NAme KII FUI Parameters for disk attributes Lock Locks the current disk master password onto all visible non system files not already protected Unlock Removes the password from all visible non system files with passwords matching the disk master password MPW Specifies the disk s current master password NAME Changes the disk name PW Changes the disk master password AUTO This command has ha
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