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CHALK AN ELECTRONIC SPREAD SHEET BY PAUL M WILSON TABLE OF CONTENTS 1. OVERVIEW............................................... 2 2. GET STARTED............................................ 2 3. BOARD COMPONENTS....................................... 4 4. HELP................................................... 5 5. COMMANDS............................................... 6 6. STANDARDS.............................................. 8 7. BOARD DESIGN HINTS..................................... 8 8. DEFINE SYSTEM.......................................... 8 9. GLOSSARY............................................... 9 10. MESSAGES...............................................10 11. FILE STRUCTURE.........................................11 12. MAKE MONEY WITH CHALK..................................12 13. EXAMPLES...............................................13 1 CHALK AN ELECTRONIC SPREADSHEET 1. OVERVIEW: CHALK IS AN ELECTRONIC SPREADSHEET. IT ALLOWS YOU TO BUILD AND MAINTAIN A BOARD OF TABULAR DATA. SOME POSSIBLE USES ARE CASH FLOW PROJECTION, STUDENT GRADE BOOK, PHONE BOOK, INVENTORY MAINTENANCE, CHECK BOOK MAINTENANCE, AND SALES HISTORY. A BOARD IS A TABLE HAVING ROWS AND COLUMNS. THE BOARD HAS A TITLE. EACH ROW AND EACH COLUMN MAY HAVE A TITLE. THE INTERSECTION OF A ROW AND A COLUMN IS CALLED A CELL. CELLS ARE THE BASIC BUILDING BLOCK OF THE BOARD. EACH CELL CONTAINS AN AMOUNT AND A FORMULA. NORMALLY AMOUNTS ARE DISPLAYED BUT YOU CAN ALTERNATLY SEE FORMULAS. YOU CONTROL ALL TITLES AND THE CONTENTS OF ALL CELLS. YOU CAN SAVE AND RETRIEVE THE CONTENTS OF ANY BOARD AS A FILE. SELECTED AMOUNTS OF EXISTING BOARDS CAN BE MERGED WITH THE CURRENT BOARD. ROWS AND COLUMNS CAN BE ADDED OR DELETED. SELECTED PORTIONS OF THE BOARD CAN BE SORTED BY ROW TITLE OR ROW AMOUNT IN ASCENDING OR DESCENDING SEQUENCE. THE BOARD CAN BE PRINTED. 2. GET STARTED: THIS SECTION EXPLAINS THE STEPS NECESSARY TO START USING A BOARD. IT ASSUMES THAT THE SYSTEM HAS BEEN DEFINED. STEP PROMPT============= ENTER=============== EXPLAINATION================ NEXT 1 SYSTEM PROMPT CHALK LOGON TO CHALK 2 2 AUTHOR'S STATEMENT PRESS RETURN 3 3 AUTHOR'S STATEMENT PRESS RETURN 4 4 ENTER BOARD NAME OR EXISTING BOARD FILE LOAD BOARD INTO MEMORY 6 NEW NAME WARNING BOARD NOT FOUND 4 NEW INITIALIZE NEW BOARD IN MEMORY 5 Q EXIT CHALK 5 ENTER EXPECTED ROWS, EXPECTED COLS ##,## BUILD EMPTY BOARD IN MEMORY 6 IF BOARD WON'T FIT SHOW ##### BYTES MORE MEMORY REQUIRED. TRY SMALLER ARRAY 5 6 BOARD FORMAT THE BOARD IS NOW DISPLAYED. == ===================== ==================== ================================= 2 CHALK AN ELECTRONIC SPREADSHEET 2.1 EXAMPLE OF LOGON FOR A NEW BOARD: NOTE EXAMPLE SCREEN SIZE IS 64 COLUMNS. 2.1.1 FIRST LOGON SCREEN: ================================================================ |CHALK REVISION: 2.10 COPYRIGHT 1983 BY PAUL M WILSON | |PRESS RETURN | |NOT RESPONSIBLE FOR CONSEQUENTIAL DAMAGES | |AUTHOR'S STATEMENT | | | ================================================================ 2.1.2 SECOND LOGON SCREEN: ================================================================ |CHALK REVISION: 2.10 COPYRIGHT 1983 BY PAUL M WILSON | |PRESS RETURN | | | |AUTHOR'S STATEMENT CONTINUED | | | ================================================================ 2.1.3 WHAT BOARD DO YOU WANT: ================================================================ |CHALK REVISION: 2.10 COPYRIGHT 1983 BY PAUL M WILSON | |ENTER BOARD NAME OR NEW<NEW> | | | ================================================================ 2.1.4 SPECIFY BOARD SIZE: ================================================================ |CHALK REVISION: 2.10 COPYRIGHT 1983 BY PAUL M WILSON | |ENTER EXPECTED ROWS, EXPECTED COLS <3,4> | |CURRENT ROWS: 3 COLS: 4 | |MAX ROWS: 22 COLS:23 | | | ================================================================ AN EMPTY BOARD OF 3 ROWS BY 4 COLUMNS WILL BE CONSTRUCTED. NOTE THAT FOR THIS EXAMPLE THE BOARD COULD EVENTUALLY GROW TO 22 ROWS BY 23 COLUMNS. IT IS IMPORTANT THAT YOU ESTIMATE AS ACCURATLY AS POSSIBLE THE DIMENSIONS OF YOUR BOARD. EACH TIME YOU RUN CHALK AND SPECIFY A NEW OR EXISTING BOARD, THE MAXIMUM BOARD SIZE WILL BE COMPUTED. CHALK ATTEMPTS TO ALLOCATE AN EQUAL NUMBER OF ROWS AND COLUMNS BEYOND THE CURRENT BOARD SIZE. THAT IS A ROW WILL BE ALLOCATED AND THEN A COLUMN REPETITIVELY UNTIL ALL AVAILABLE MEMORY IS USED. THUS SHOULD YOU ADD ROWS BEYOND THE INITIAL 3 AND THEN SAVE THE BOARD, THE NEXT TIME YOU RUN CHALK WITH THIS BOARD, MAX ROWS WILL PROBABLY BE LARGER AND MAX COLUMNS WILL BE SMALLER. 3 CHALK AN ELECTRONIC SPREADSHEET 3. BOARD COMPONENTS: A BOARD IS A TABLE HAVING ROWS AND COLUMNS. THE BOARD HAS A TITLE. EACH ROW AND EACH COLUMN MAY HAVE A TITLE. THE INTERSECTION OF A ROW AND A COLUMN IS CALLED A CELL. CELLS ARE THE BASIC BUILDING BLOCK OF THE BOARD. EACH CELL CONTAINS AN AMOUNT AND A FORMULA. NORMALLY AMOUNTS ARE DISPLAYED BUT YOU CAN ALTERNATLY SEE FORMULAS. YOU CONTROL ALL TITLES AND THE CONTENTS OF ALL CELLS. YOU CAN SAVE AND RETRIEVE THE CONTENTS OF ANY BOARD AS A FILE. SELECTED AMOUNTS OF EXISTING BOARDS CAN BE MERGED WITH THE CURRENT BOARD. ROWS AND COLUMNS CAN BE ADDED OR DELETED. SELECTED PORTIONS OF THE BOARD CAN BE SORTED BY ROW TITLE OR ROW AMOUNT IN ASCENDING OR DESCENDING SEQUENCE. 3.1 BOARD COMMUNICATION: THE FIRST THREE LINES OF THE CRT ARE USED TO COMMUNICATE WITH THE BOARD. 3.1.1 LINE 1. HEADER INFORMATION: LINE ONE DISPLAYS THE LOCATION OF THE CURRENT CELL (WHICH IS HIGHLIGHTED ON THE DISPLAY), THE BOARD FILE NAME, COPYRIGHT, AUTOMATIC CURSOR DIRECTION, AND THE FORMULA OF THE CURRENT CELL. IF CALCULATIONS MUST BE PERFORMED TO UPDATE THE BOARD, A WARNING IS DISPLAYED ON THE LINE. 3.1.2 LINE 2. DATA ENTRY PROMPT: LINE TWO DISPLAYS THE CURRENT ROW AND COLUMN TITLES. COMMANDS, AMOUNTS AND FORMULAS ARE INPUT, THE CURSOR ADVANCES AND THE BOARD IS REFRESHED. COMMAND PROMPTS ARE ALSO DISPLAYED ON THIS LINE. 3.1.3 LINE 3. WARNINGS AND MESSAGES PERTINENT TO THE LAST DATA ENTRY. 3.2 BOARD DATA: 3.2.1 LINE 4. BOARD TITLE AND DATE. 3.2.2 LINE 5. COLUMN IDENTIFIERS. 3.2.3 LINE 6. COLUMN TITLES. 3.2.4 LINE 7 THRU N. ROW IDENTIFIER, ROW TITLE, AMOUNTS OR FORMULAS. NEW BOARD: =============================================================== 1|ROW: 1 COL:AA CHALK BY:PAUL M WILSON:CURSOR DOWN:A | 2| | |#######.## | 3| | 4|BOARD:NEW NEW | 5| AA AB AC AD | 6| | 7| 1 0.00 0.00 0.00 0.00 | 8| 2 0.00 0.00 0.00 0.00 | 9| 3 0.00 0.00 0.00 0.00 | =============================================================== 4 CHALK AN ELECTRONIC SPREADSHEET 4. HELP: AFTER A BOARD HAS BEEN CHOSEN, THE HELP SCREENS CAN BE VIEWED AT ANY TIME BY ENTERING '?'. THE FIRST HELP SCREEN DISPLAYS THE COMMANDS AND EXPLAINS CURSOR MOTION. ================================================================ |C CALCULATE BOARD |T TITLE BOARD |AR ADD ROW | |S SAVE BOARD ON DISK|TR TITLE ROW |DR DELETE ROW | |DATE DATE BOARD |TC TITLE COL |AC ADD COL | |HS HARDCOPY SCREEN |H HARDCOPY |DC DELETE COL | |V VIEW ON/OFF |B VIEW BOARD |F VIEW FORMULA | |Q QUIT |R RIGHT |D DOWN | | |AB ADD BOARD |SORT SORT | | | |M MOVE CURSOR FOLLOWED BY ANY COMBINATION OF: | | A COL 1 |W ROW 1 |R RIGHT A SCREEN | | S LEFT A COL |E UP A ROW |V DOWN A SCREEN | | D RIGHT A COL|X DOWN A ROW| | | F LAST COL |Z LAST ROW | | Q COL 1 ROW 1|RRCC WHERE RR IS ROW AND CC IS COL | | | |? HELP | | | ================================================================ THE SECOND HELP SCREEN DESCRIBES FORMULA RULES. ===================================================================== |FORMULA DESCRIPTION |FORMULA DESCRIPTION | |FA ACTUAL |FB BLANK | |Frr+ss ROW rr + ROW ss |Fcc+dd COL cc + COL dd | |Frr-ss ROW rr - ROW ss |Fcc-dd COL cc - COL dd | |Frr*ss ROW rr * ROW ss |Fcc*dd COL cc * COL dd | |Frr/ss ROW rr / ROW ss |Fcc/dd COL cc / COL dd | |F###%rr PERCENT OF ROW rr |F###%cc PERCENT OF COL cc | |Frr&ss ROW rr THRU ROW ss SUM |Fcc&dd COL cc THRU COL dd SUM | |Ftt>uu MOVE ROW tt COL cc | | | |NOTE: | |rr AND ss MUST BE LESS THAN THE CURRENT ROW. | |cc AND dd MUST BE LESS THAN THE CURRENT COL. | |tt MAY BE ANY ROW. uu MAY BE ANY COL LESS THAN THE CURRENT COL. | |uu MAY EQUAL CUR COL IF CELL ttuu HAS BEEN CALCULATED. | | | |CALCULATIONS FOR EACH CELL ARE MADE IN COL FASHION FROM ROW 1 COL 1| |TO THE LAST ROW OF COL 1 AND THEN ADVANCING TO THE NEXT COL. | |'C' IN THE TOP LINE AFTER FREE INDICATES CALCULATIONS ARE NEEDED. | |CALCULATIONS ARE MADE BY ENTERING 'C'. | | | ===================================================================== 5 CHALK AN ELECTRONIC SPREADSHEET 5. COMMANDS: COMMANDS CAN BE VIEWED BY ENTERING '?'. COMMAND DESCRIPTION EXPLAINATION _______ __________________ _______________________________________________ AB ADD BOARD ADDS AMOUNTS FROM A SPECIFIED ROW AND COL RANGE OF A SPECIFIED BOARD TO THE CURRENT BOARD USING THE CURRENT CELL AS THE UPPER LEFT HAND CORNER. AC ADD COL INSERTS A NEW COL TO THE IMMEDIATE RIGHT OF THE CURRENT COL. THE NEW COL WILL HAVE ZERO FOR ALL VALUES AND WILL HAVE THE SAME FORMULA CHARAC- TERISTICS AS THE CURRENT COL. FORMULAS ARE AUTOMATICALLY ADJUSTED, CALCULATIONS ARE PERFORMED AND THE SCREEN IS REFRESHED. THE CURSOR IS PLACED IN THE NEW COL. AR ADD ROW INSERTS A NEW ROW IMMEDIATLY BELOW THE CURRENT ROW. THE NEW ROW WILL HAVE ZEROS FOR ALL VALUES BUT IT WILL HAVE THE SAME FORMULA CHARACTER- ISTICS AS THE CURRENT ROW. ALL FORMULAS ARE AUTOMATICALLY ADJUSTED, CALCULATIONS ARE PERFORMED AND THE SCREEN IS REFRESHED. THE CURSOR IS PLACED IN THE NEW ROW. B VIEW BOARD REFRESHES THE SCREEN WITH THE AMOUNTS CENTERED AROUND THE CURRENT CELL. SETS THE VIEW FORMULA TOGGLE OFF. C CALCULATE BOARD COMPUTES CURRENT AMOUNTS FOR THE BOARD. REFRESHES THE SCREEN WITH AMOUNTS. SETS VIEW FORMULA TOGGLE OFF. SETS VIEW BOARD TOGGLE ON. D DOWN TOGGLE CONTROLS THE DIRECTION OF THE AUTOMATIC CURSOR AFTER ENTRY OF DATA. IF IN FORMULA MODE THE NEXT CELL WILL BE IMMEDIATLY DOWN. IF IN AMOUNT MODE THE NEXT CELL WILL BE THE NEXT CELL DOWN WHICH CAN ACCEPT AN AMOUNT. DATE DATE BOARD UPDATES THE DATE ASSOCIATED WITH THE BOARD. DC DELETE COL DELETES THE CURRENT COL. ADJUSTS ALL FORMULAS. COMPUTES CURRENT AMOUNTS FOR THE BOARD. COLUMNS REFERENCED IN A FORMULA CAN'T BE DELETED. THE CURSOR IS PLACED IN THE PRIOR COLUMN. DR DELETE ROW DELETES THE CURRENT ROW. ADJUSTS ALL FORMULAS. COMPUTES CURRENT AMOUNTS FOR THE BOARD. ROWS REFERENCED IN A FORMULA CAN'T BE DELETED. THE CURSOR IS PLACED IN THE PRIOR ROW. 6 CHALK AN ELECTRONIC SPREADSHEET COMMAND DESCRIPTION EXPLAINATION ------- ------------------ ----------------------------------------------- F VIEW FORMULA REFRESHES THE SCREEN WITH THE FORMULAS CENTERED AROUND THE CURRENT CELL. SETS THE VIEW AMOUNTS TOGGLE OFF. H HARDCOPY PRINT A HARDCOPY OF THE BOARD. DATA PRINTED DEPEND ON WHETHER THE 'B' OR 'F' TOGGLE IS SET. HS HARDCOPY SCREEN PRINT A HARDCOPY OF THE CURRENT SCREEN ONLY. Q QUIT QUIT. IF DATA HAS BEEN CHANGED, TRIES TO SAVE THE BOARD. R RIGHT TOGGLE CONTROLS THE DIRECTION OF THE AUTOMATIC CURSOR AFTER ENTRY OF DATA. IN FORMULA MODE THE NEXT CELL WILL BE IMMEDIATLY TO THE RIGHT. IN AMOUNT MODE THE NEXT CELL WILL BE THE NEXT CELL TO THE RIGHT WHICH CAN ACCEPT AN AMOUNT. S SAVE BOARD ON DISK CALCULATES AMOUNTS FOR THE BOARD. SETS VIEW ON. REFRESHES THE SCREEN. ASKS FOR THE NAME TO SAVE THE BOARD AS. IF THE BOARD NAME ALREADY EXISTS GIVES YOU A CHANCE TO CHANGE YOUR MIND. SORT SORT ANY VALID RANGE OF ROWS MAY BE SORTED IN ASCENDING OR DESCENDING SEQUENCE BY EITHER ROW TITLE OR AMOUNTS OF THE CURRENT COL. FORMULA PATTERNS FOR ALL ROWS MUST MATCH. T TITLE BOARD TITLE BOARD. TC TITLE COL TITLE THE CURRENT COL. THE CURSOR AUTOMATICALLY ADVANCES TO THE NEXT COL FOR ENTRY OF A TITLE IN THAT COL TOO. PRESS RETURN WHEN YOU ARE DONE ENTERING COL TITLES. TR TITLE ROW TITLE THE CURRENT ROW. THE CURSOR AUTOMATICALLY ADVANCES TO THE NEXT ROW FOR ENTRY OF A TITLE IN THAT ROW TOO. PRESS RETURN WHEN YOU ARE DONE ENTERING ROW TITLES. V VIEW ON/OFF TOGGLE TO SUPPRESS VIEWING OF THE ENTIRE BOARD. USED TO SPEED ENTRY OF DATA AND FORMULAS. 7 CHALK AN ELECTRONIC SPREADSHEET 6. STANDARDS: DATA ENTRY. THE REPLY TO ANY PROMPT MUST TERMINATE WITH A RETURN. Q WILL GENERALLY EXIT A STEP. RETURN WILL LEAVE DATA UNCHANGED. AMOUNTS MUST HAVE ZERO OR TWO PLACES TO THE RIGHT OF THE DECIMAL. MINUS SIGNS ARE LEADING. 7. DEFINE THE SYSTEM: SYSTEM REQUIREMENTS: ANY CP/M SYSTEM WITH AT LEAST 48K. CRT ABLE TO: HOME THE CURSOR. CLEAR SCREEN FROM CURSOR TO END OF SCREEN. TOGGLE HIGHLIGHTING ON AND OFF (HIGHLY DESIRABLE). RING BELL. PRINTER (HIGHLY DESIRABLE). 7.1 MAKE A COPY OF THE CHALK DISKETTE AND SAVE IT! AS YOU WILL PROBABLE WANT TO GIVE CHALK TO FRIENDS (HUNDREDS I HOPE!). PLEASE DO IT NOW. 7.2 CHALK ASSUMES THE CURRENT ACTIVE DRIVE CONTAINS THE FOLLOWING FILES: 1. CHALK.COM 2. CHALK1.OVL 3. CHALK2.OVL 4. CHALK3.OVL 5. CHALK.CTL 6. CHALKNEW.COM THESE ARE THE ONLY FILES THAT ARE ABSOLUTELY REQUIRED TO EXECUTE CHALK. CHALKNEW.COM IS ONLY NEEDED WHEN RECONFIGURING THE SYSTEM. 7.3 TAILOR CHALK TO YOUR SYSTEM CONFIGURATION: EXECUTE CHALKNEW TO MODIFY THE FOLLOWING FIELDS IN CRT.CTL: 1. SCREEN DEPTH. 2. SCREEN WIDTH. 3. PRINTER PAGE LINES. 4. PRINTER PAGE WIDTH. 5. HOME. THIS IS THE COMMAND TO HOME THE CURSOR ONLY. DON'T USE THE COMMAND TO HOME AND CLEAR. 6. CLEAR FROM CURSOR TO END OF SCREEN. 7. BRIGHT. 8. DIM. 9. BELL. 10. PRINTER FORM FEED. NOTE THAT ITEMS 5 THRU 10 EXPECT THE DECIMAL VALUES OF THE ASCII CHARACTER CODES NEEDED TO FORM THAT COMMAND. IF MORE THAN ONE ASCII CHARACTER IS NEEDED, THEY MUST BE SEPARATED BY COMMAS. FOR EXAMPLE THE HAZLETINE 1500 COMMAND TO HOME THE CURSOR IS '126,18'. SEE THE CONTROL FILE IF YOU NEED TO KNOW MORE. 8 CHALK AN ELECTRONIC SPREADSHEET 8. BOARD DESIGN HINTS: LOOK FOR AN EXISTING BOARD SIMILAR TO THE BOARD YOU WANT AND COPY IT. IF YOU CAN'T FIND AN EXISTING BOARD TO COPY THEN DO THE FOLLOWING. 8.1 ESTIMATE THE NUMBER OF ROWS AND COLUMNS YOU WILL NEED. THIS IS IMPORTANT AS IT IS TIME CONSUMING TO ADD OR DELETE ROWS AND COLUMNS. 8.2 TITLE THE BOARD. 8.3 TITLE ROWS. 8.4 TITLE COLUMNS. 8.5 DEFINE FORMULAS. IF YOU ARE SUMMING A SERIES OF CELLS IT IS HELPFUL TO MAKE THE FIRST CELL OF THE SERIES BLANK. SINCE BLANK CELLS ALWAYS CONTAIN A VALUE OF ZERO, THIS DOESN'T AFFECT THE CALCULATIONS YET MAKES IT MUCH EASIER TO ADD OR DELETE THE FIRST CELL CONTAINING DATA. REMEMBER THAT CALCULATIONS ARE ALWAYS PERFORMED FROM TOP TO BOTTOM LEFT TO RIGHT. 8.6 ENTER INITIAL AMOUNTS. 8.7 BE SURE TO SAVE THE BOARD. 9 CHALK AN ELECTRONIC SPREADSHEET 9. GLOSSARY: AMOUNT: ANY QUANTITY IN THE RANGE +/- 99999999.99. BOARD: THE FILE YOU ARE CURRENTLY WORKING WITH. MAY HAVE A NAME OF UP TO 8 CHARACTERS. THE BOARD MAY ALSO BE GIVEN A TITLE. THE CURRENT BOARD MAY BE SAVED AS MANY TIMES AS DESIRED FOR ANY CHALK SESSION. CELL: THE BASIC BUILDING BLOCKS OF THE BOARD. THE CURRENT CELL IS HIGHLIGHTED. EACH CELL CONTAINS AN AMOUNT AND A FORMULA. UNLESS YOU ARE IN FORMULA MODE YOU WILL SEE AN ENTERED AMOUNT OR A CALCULATED AMOUNT IN EACH CELL. CELLS ARE ADDRESSED BY ROW AND COLUMN. COLUMN: EACH CELL OCCUPIES A COLUMN ADDRESS. COLUMNS ADDRESSES ARE 2 ALPHABETIC CHARACTERS. FORMULA: THE ALGORITHM USED TO DISPLAY THE COMPUTED AMOUNT FOR ANY CELL. SEE THE HELP SCREENS FOR MORE ABOUT FORMULAE. HARD COPY: THE PRINTED OUTPUT AVAILABLE FOR ANY BOARD OR SCREEN. ROW: EACH CELL OCCUPIES A ROW ADDRESS. TITLE: YOU CAN TITLE A BOARD. YOU CAN ALSO TITLE EACH ROW AND EACH COLUMN. 10. MESSAGES: MESSAGES APPEAR ON THE THIRD LINE OF THE SCREEN. THEY DESCRIBE THE RESULTS OF THE LAST ENTERED DATA. IF AN ERROR HAS BEEN MADE THE BELL WILL RING. 10 CHALK AN ELECTRONIC SPREADSHEET 11. FILE STRUCTURE: ALL DATA FILES END WITH THE 3 CHARACTERS 'BRD'. ALL DOCUMENTATION FILES END WITH THE 3 CHARACTERS 'DOC'. ALL EXAMPLE BOARDS START WITH THE THREE CHARACTERS 'CHK'. FIVE FILES ARE REQUIRED ON THE SYSTEM AND THEY MUST BE ON THE CURRENT ACTIVE DRIVE. THEY ARE: 1. CHALK.COM 2. CHALK1.OVL 3. CHALK2.OVL 4. CHALK3.OVL 5. CHALK.CTL THE SYSTEM DOCUMENTATION FILE IS CHALK.DOC. THE EXAMPLE DOCUMENTATION FILE IS CHALKEX.DOC CHALKA2B.SUB IS A SUBMIT FILE TO PIP ALL CHALK FILES TO DRIVE B. CHALKNEW.COM IS USED TO DEFINE THE SYSTEM. 11.1 CONTROL FILE: THE CONTROL FILE IS NAMED CHALK.CTL. IT CONSISTS OF LINES OF NUMBERS SEPARATED BY COMMAS. EACH LINE IS TERMINATED BY 255. FOR EXAMPLE THE LINE FOR A BELL IS USUALLY: 7,255<CRLF> LINE DEFAULT ============================================= ================= REGISTRATION 0,255<CRLF> ROW TITLE LENGTH 16,255<CRLF> COLUMN TITLE LENGTH 10,255<CRLF> SCREEN DEPTH 24,255<CRLF> SCREEN WIDTH 80,255<CRLF> PRINTER PAGE LINES 66,255<CRLF> PRINTER PAGE WIDTH 132,255<CRLF> HOME 126,18,255<CRLF> CLEAR FROM CURSOR TO END OF SCREEN 126,24,255<CRLF> BRIGHT 126,31,255<CRLF> DIM 126,25,255<CRLF> BELL 7,255<CRLF> PRINTER FORM FEED 12,255<CRLF> LAST LINE OF FILE END<CRLF> CAUTION SHOULD BE USED IN MODIFYING THESE PARAMETERS. MODIFICATION OF TITLE LENGTH PARAMETERS MAY CAUSE PREVIOUS BOARDS TO BE PROCESSED INCORRECTLY. DEFAULT VALUES ARE FOR A HAZLETINE 1500 CRT. YOU MAY HAVE TO CHANGE HOME, CLEAR, BRIGHT AND DIM FOR YOUR CRT. IF YOU DON'T HAVE BRIGHT AND DIM OR THE EQUIVALENT ON YOUR CRT, THEN USE 0,255<CRLF> FOR THOSE PARAMETERS. 11 CHALK AN ELECTRONIC SPREADSHEET 11.2 DATA FILE: ALL BOARDS HAVE A TYPE OF BRD. SAVING AN EXISTING BOARD CAUSES THE OLD BOARD TYPE TO BECOME BAK. BOARD TITLE DATE AS MMDDYY MAX ROW,MAX COL ROW TITLE 1 ........... ROW TITLE N COLUMN TITLE 1 .............. COLUMN TITLE N CELL DATA ARRANGED ROW MAJOR AND COLUMN MINOR. EACH CELL IS ON A LINE. A CELL CONTAINS THE FOLLOWING FIELDS SEPARATED BY COMMAS: VALUE FORMULA TYPE FORMULA ARGUMENT 1 FORMULA ARGUMENT 2 11.3 SUBMIT FILE: CHALKA2B.SUB PIP B:=CHALK.COM[OV] B:=CHALK1.OVL[OV] B:=CHALK2.OVL[OV] B:=CHALK3.OVL[OV] B:=CHALK.CTL B:=CHALK.DOC B:=CHALKEX.DOC B:=CHALKA2B.SUB B:=CHKCASH.BRD B:=CHKCLASS.BRD B:=CHKMETER.BRD B:=CHKPHONE.BRD B:=CHKSALES.BRD B:=CHKSIMP.BRD B:=CHALKUSR.DOC 12. DISTRIBUTE CHALK TO YOUR FRIENDS: I REALLY WANT YOU TO DISTRIBUTE CHALK TO YOUR FRIENDS. YOU MIGHT MAKE A FEW BUCKS ON IT. SUBMIT CHALKA2B. CHALK FILES AND DOCUMENTATION WILL BE COPIED FROM DRIVE A TO DRIVE B. FEEL FREE TO ADD YOUR COMMENTS TO CHALKUSR.DOC, BUT PLEASE DON'T CHANGE ANYTHING ELSE. REMEMBER THE NEXT GUY MIGHT NEED WHAT YOU CHANGE. 13. EXAMPLES: SEE CHALKEX.DOC. 102083================== END CHALK.DOC ======================================= 12