DAVID-DOS
     COPYRIGHT 1982 DAVID WESTON

          INSTRUCTION MENU

       1-SCROLLING

       2-INSTALLING DAVID-DOS

       3-USING DAVID-DOS

       4-MACHINE NOTES

       5-COPY PROTECTION

       6-DISCLAIMER & NOTICE

         (PRESS NUMBER)


  PRESS ESC TO RETURN TO MAIN MENU

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             SCROLLING


SCROLLING IS STOPPED WITH ANY KEY.  THE
SECOND PRESS, (ANY KEY), RESTARTS THE
SCROLL AND DETERMINES YOUR SPEED UNTIL
THE NEXT PAIR OF KEY PRESSES. TYPICAL
SPEEDS FOR THE SECOND KEY PRESS ARE:

   B.......FASTEST
   <-
   ->
   SPC BAR
   /
   ;.......SLOWEST

SCROLLING IS TERMINATED BY USING THE
RETURN KEY ON THE SECOND KEY PRESS.

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        INSTALLING DAVID-DOS


DAVID-DOS REPLACES THE DOS NOW ON YOUR
DISK IN TRACKS ZERO, ONE AND TWO.

IF YOU HAVE A DISK WITH A SPECIAL DOS
ON IT, THEN MAKE A BACK-UP OF IT FIRST
WITH COPYA ON THE APPLE SYSTEM MASTER
AND INSTALL DAVID-DOS ON THE BACK-UP
COPY.  THE SPECIAL DOS ON YOUR DISK MAY
BE NECESSARY TO RUN ITS PROGRAMS, IN
WHICH CASE DAVID-DOS MAY NOT WORK.

ALL INSTALLING IS DONE WITH ONE DISK
DRIVE.  YOU MAY PROCEED WITH ALL THE
INSTALLATION FEATURES ON THE MENU WITH-
OUT REINSERTING THE INSTALLATION DISK.

YOUR ORIGINAL HELLO PROGRAM NAME AND
TYPE ARE AUTOMATICALLY PRESERVED DURING
THE INSTALLATION.

THERE ARE THREE VERSIONS OF DAVID-DOS.
NORMALLY YOU WILL USE NUMBER ONE.

IF A PROGRAM WILL NOT RUN WITH DAVID-
DOS (NO1) THE PROGRAM PROBABLY REQUIRES
A STANDARD CATALOG HEADING. USE DAVID-
DOS WITHOUT FREE SPACE (NO2), WHICH
HAS A STANDARD CATALOG HEADING.

GREAT CARE WAS TAKEN TO KEEP DAVID-DOS
STANDARD WITH ALL ENTRY ADDRESSES PRE-
SERVED AND ONLY TWO ROUTINES MOVED.
IN THE RARE INSTANCE YOUR PROGRAM
STILL WILL NOT RUN THEN USE BARE-BONES 
DAVID-DOS (NO3) WHICH HAS THE SPEED
BUT NOT THE EXTRA COMMANDS OF NO1 & 2.
DAVID-DOS (NO3) DOES HAVE ONE EXTRA
COMMAND: TLOD. NOTE THE SHORT SPELLING.

INSTALLING (NO3) LEAVES YOUR ORIGINAL
DOS INTACT EXCEPT FOR THE INIT AREAS.

TO REMOVE DAVID-DOS FROM ANY DISK USE
MASTER CREATE ON THE DOS 3.3 SYSTEM
MASTER DISK.

USE THE INIT FEATURE ON THE MENU FOR
BLANK DISKS. THE INIT FEATURE FORMATS
YOUR DISK AND INSTALLS DAVID-DOS. NOW
YOU MUST SAVE YOUR HELLO PROGRAM. SAVE
THE PROGRAM USING THE HELLO NAME YOU
YOU CHOSE.  MAKE SURE THE PROGRAM TYPE
YOU SAVE MATCHES THE TYPE YOU INITED
WITH, (BASIC, BINARY, OR EXEC).

THE DATE COMMAND (NO4) INSTALLS ON TOP
OF THE FIRST TWO VERSIONS OF DAVID-DOS.
IT KNOWS IF YOU'RE USING THE WRONG DISK
AND STOPS WITH A MESSAGE.  TO REMOVE
THE DATE COMMAND SIMPLY RE-INSTALL
DAVID-DOS.

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          USING DAVID-DOS


WHEN LOADING OR RUNNING AN APPLESOFT OR
INTEGER PROGRAM DAVID-DOS SEARCHES ALL
THE SLOTS FOR THAT LANGUAGE. IF THE
LANGUAGE IS FOUND THE RAM OR ROM CARD
IS AUTOMATICALLY TURNED ON.  THIS ALSO
APPLIES WITH HIDOS.


DAVID-DOS HAS THESE ADDED COMMANDS:

   /......CATALOG
   TLOAD..SPEED LOAD ALL TEXT FILES
   TLIST..LIST ALL TEXT FILES
   DUMP...BINARY/ASCII
   DISA...DISASSEMBLE BINARY
   AL.....ADDRESS/LENGTH OF LAST LOAD
   HIDOS..MOVE DOS IN MEMORY TO CARD#0
   FIND...FIND HEX CHARACTER SEQUENCES
   DATE...PRINT MOUNTAIN HARDWARE DATE
   (SPARE)FUTURE USE

HERE ARE THE COMMAND PARAMATERS:

TLOAD..A(DDR..L(EN..S(LOT..D(RIVE..V(OL
/...................S......D.......V
TLIST
DUMP...A......L
DISA...A......L
AL
HIDOS
FIND...HEX BYTES
DATE

THE A  AND  L  MAY ALSO BE $A AND $L.
ALL THESE COMMANDS MAY BE USED IN BASIC
PROGRAMS USING D$ IN THE NORMAL WAY.


BASIC AND BINARY PROGRAMS ARE SPEED
LOADED BYTE BY BYTE ON THE FIRST AND
LAST PAGES AND PAGE BY PAGE ON THE
MIDDLE SECTORS.  THIS GIVES TOTALLY
ACCURATE HIGH SPEED LOADS.


TLOAD SPEED LOADS A RANDOM OR SEQUEN-
TIAL TEXT FILE STARTING AT $1000 OR
ANY ADDRESS YOU CHOOSE WITH THE  'A'
PARAMETER.  IF YOU WANT LESS THEN THE
WHOLE FILE USE THE 'L' PARAMETER,
OTHERWISE, TLOAD ALWAYS LOADS THE WHOLE
TRACK & SECTOR LIST ALLOTTED TO THE
FILE.  THIS IS NECESSARY BECAUSE DOS
NEVER RECORDS THE LAST BYTE OF A TEXT
FILE.  WE CAN'T LOOK FOR THE FIRST '0'
AS THE END MARK BECAUSE WE ALSO LOAD
RANDOM FILES AND THEY DON'T USE AN '0'.
THEREFORE, TLOAD WITHOUT 'L' LOADS THE
ENTIRE LAST SECTOR EVEN IF THE FILE
ENDS IN THE MIDDLE OF THE SECTOR. YOU
CAN, IF DESIRED, MAKE TLOADS TO EXACT
LENGTH WITH 'L'.


THE TLIST COMMAND LISTS THE LAST TLOAD
YOU HAVE MADE AND LISTS IT TO WHATEVER
LENGTH YOU LOADED IT.

YOU WILL GET A "FILE NOT FOUND" MESSAGE
IF THERE HAS BEEN A LOAD OR A BLOAD
BETWEEN TLOAD AND TLIST. RESULTS COULD
BE UNPREDICTABLE IF THIS SAFE-GUARD
WERE ABSENT.

STRETCHES OF ZEROS ARE EXCLUDED DURING
TLISTING.  IF YOUR TFILE IS LESS THAN
ONE SECTOR LONG THERE MAY BE GARBAGE
SHOWN PAST THE END OF IT.  THIS IS
NORMAL AND DUE TO THE WAY DOS HANDLES
ONE SECTOR.  THE GARBAGE IS NOT PART OF
YOUR FILE.

THE DUMP AND DISA COMMANDS START AT $0
OR YOUR 'A'.

  EXAMPLES: DUMP,A2048 OR DUMP,A$800

TO MAKE THEM 50 BYTES LONG USE 'L'.

  EXAMPLE: DISA,A2048,L50

THE DUMP COMMAND SKIPS THE SOFT SWITCH-
ES AT $C000. THE DISA COMMAND DOES NOT.


THE AL COMMAND SHOWS THE ADDRESS AND
LENGTH OF THE LAST LOAD, BLOAD, TLOAD,
DUMP, OR DISA WITH ONE EXCEPTION.  THE
AL COMMAND SHOWS L65059 FOR A TLOAD
THAT DIDN'T SPECIFY 'L'.

THE AL COMMAND MAY BE USED FOR HANDY
HEX/DECIMAL CONVERSION. START A DUMP AT
THE NUMBER OF INTEREST, STOP IT AND HIT
AL.


THE / COMMAND, (UNSHIFTED ?), IS A
CONVENIENT WAY TO QUERY YOUR DISK. TO
EXIT THE CATALOG ON ANY PAGE, PRESS
CTRL C INSTEAD OF RETURN.  THE CATALOG
HAS ALSO BEEN FIXED TO SHOW FILE
LENGTHS UP TO 65535 SECTORS.


THE HIDOS COMMAND FIRST CHECKS FOR A
LANGUAGE CARD IN SLOT #0, THEN CHECKS
FOR A DAVID-DOS DISK IN THE DRIVE. YOU
WILL GET AN ERROR MESSAGE IF A DAVID-
DOS DISK IS NOT IN THE DRIVE.  IF YOU
ARE USING ONERR GOTO, THE NUMBER FOR
THIS ERROR IS 32.

HIDOS THEN LOADS DOS RESIDING IN MEMORY
TO THE CARD AT $DD00.  HIMEM: IS SET AT
$BE00.  MAXFILES IS AUTOMATICALLY
LIMITED TO FIVE.  ALL BASIC PROGRAMS
WHICH DO NOT PEEK OR POKE DOS DIRECTLY
WILL RUN FINE.  HIDOS CLEARS MEMORY
FROM $9500 TO $BFFF DURING EXECUTION.

HIDOS MAY BE USED IN BASIC PROGRAMS.
YOU CAN MAKE AN APPLESOFT TURNKEY HELLO
PROGRAM WITH IT.    

  EXAMPLE: 10 D$ = CHR$(4): POKE 217,0
           20 PRINT D$"HIDOS"
           30 POKE 103,1: POKE 104,8
           40 D$ = CHR$(4)
           50 THE REST OF YOUR PROG.

LINE 10 CLEARS THE INTEGER LINE# PTR.
LINE 30 RESETS THE PROGRAM 1ST STATE-
MENT ADDRESS TO $801. STRING STATEMENTS
SUCH AS A$="FUN" OR DIM A$(X,Y) SHOULD
COME AFTER LINE 30.  WE REDID LINE 10
BECAUSE THE D$ STRING WAS LOST DURING
THE EXECUTION OF HIDOS.


FIND AND DATE ARE AVAILABLE IN THE
HIDOS MODE ONLY.

FIND SEARCHES FOR ANY HEX SEQUENCE UP
TO 31 BYTES LONG.  HIT RETURN BEFORE
ENTERING THE BYTES. PUT A SPACE BETWEEN
EACH BYTE.  EXAMPLE:

  KEYBOARD ENTRY    SCREEN

  FIND              FIND
  HIT RETURN        FIND HEX:
  20 58 FC          FIND HEX:20 58 FC
  HIT RETURN        (FOUND ADDRESSES)

FIND IS AN INPUT TYPE COMMAND.  WHEN
FIND IS USED IN A PROGRAM THERE MUST
BE AN INPUT BEFORE THE PROGRAM CON-
TINUES.


DATE PRINTS IN MOUNTAIN HARDWARE FORMAT.

   EXAMPLE:  12/31/82


FOR PRINTING THESE INSTRUCTIONS AND FOR
MORE EXAMPLES AND UTILITIES, SEE THE
CATALOG ON THIS DISK.

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           MACHINE NOTES


TWO EXTRA VARIABLES ARE USED IN ZERO
PAGE. THEY ARE $1E & $1F. THEY USUALLY
HAVE THE ENDING ADDR OF LOADS IN THEM.

DURING LOADS THE VALUES OF $20-$24 ARE
SAVED, THE VARIABLES USED, THEN THE
ORIGINAL VALUES RESTORED.
 
THE L PARAMETER HAS BEEN CHANGED FROM
7FFF TO FFFF ALLOWING ANY LENGTH SAVE.

HIDOS LOCATIONS OF INTEREST:

  HIDOS............$DD00
  INDIRECT JUMPS...$D000
  FIND.............$D054
  DATE.............$D0E4
  BANK SWITCHING...$BE1C
  SWITCH TO DOS....$BF68
  SWITCH TO BASIC..$BEA1
  LENGTH...........$BF60
  ADDRESS..........$BF72
  FMGRLIST.........$BFBB
  IOB..............$BFE8

DAVID-DOS INSTALLATION IMAGE:

    RAM $4000    DISK T6-S1
        $64FF         T8-S5

THE FIND COMMAND READS $D000.$FFFF ON
THE MOTHER BOARD AS DOES DISA AND DUMP.
PATCH $D0AB:EA B1 4E TO HAVE FIND READ
THE LANGUAGE CARD IN SLOT ZERO.

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          COPY PROTECTION


I HAVE LEFT DAVID-DOS UNPROTECTED TO 
MAKE IT MOST CONVENIENT AND USEFUL FOR
YOU.  I TRUST YOU WILL RESPECT MY
POLICY.  TO MAKE A BACK-UP USE COPYA ON
THE DOS 3.3 SYSTEM MASTER.

FOR THOSE FEW WHO LIKE TO GIVE OUT OR
SELL COPIES THERE IS A SERIAL NUMBER IN
THE CODE AND RECORDS ARE KEPT FOR
TRACING DOWN ILLEGAL COPIES.

IF YOU RECEIVED DAVID-DOS FREE AND YOU
FIND THAT IT IS WORTH $39.95 TO YOU,
SEND THE AMOUNT TO ME AND I WILL SEND
YOU DAVID-DOS WITH THE LATEST LIBRARY
OF UTILITIES AND SOFTWARE PATCHS.

I WILL BE HAPPY TO RECEIVE YOUR IDEAS
AND COMMENTS ABOUT DAVID-DOS AND YOUR
NEW APPLICATIONS OF IT.

THANK YOU FOR BUYING MY SOFTWARE.

           DAVID WESTON


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    DISCLAIMER OF ALL WARRANTIES

DAVID DATA MAKES NO WARRANTIES, EXPRESS
OR IMPLIED, ABOUT THE QUALITY, PERFORM-
ANCE, MERCHANTABILITY, OR FITNESS FOR
ANY PARTICULAR PURPOSE OF THIS SOFTWARE
AND INSTRUCTIONS.  THE ENTIRE RISK AND
COST IS WITH THE BUYER FOR ANY DIRECT,
INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES OR EXPENSES RESULTING FROM THE
USE OF THIS SOFTWARE AND INSTRUCTIONS,
EVEN IF DAVID DATA HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES. SOME
STATES DO NOT ALLOW ALL OF THE ABOVE.

NOTICE:  DAVID DATA RESERVES THE RIGHT
TO MAKE IMPROVEMENTS IN THIS PRODUCT AT
ANY TIME AND WITHOUT NOTICE.

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