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-
-
- KDCG
- KDCalc Graphic Version 1.1 - April 1989
- A Product of KD Ranch Enterprises (c)
-
-
- GENERAL:
-
- KDCG is an EGA/VGA graphic implementation of a hand-held calculator.
- It will add, subtract, multiply and divide. It uses an on-screen tape,
- capability to list the tape on a printer and features a nine memory
- register sub-function for storage and recall. It was written using
- Turbo Pascal 5.0. KDCG will not run on a CGA system.
-
-
- HISTORY:
-
- Version 1.0 - Initital Release (January 1989).
- Version 1.1 - Implemented "Tape Scrolling" sub-function (April 1989).
-
-
- COMMAND SYNTAX: KDCG [d][e]
-
- By default KDCG will start in "Float Mode". If you prefer
- "Dollar Mode" use the d parameter -- see FUNCTIONS for
- explanation of these modes. This mode can be changed from
- inside the calculator.
-
- Also, by default, KDCG will detect your display capability
- (either EGA or VGA) and initialize in that mode. If you have
- VGA, but prefer to use KDCG in EGA mode, then use an e
- parameter. Sorry, you can't get VGA on an EGA system.
- This mode CANNOT be changed once inside the calculator.
-
- If you use two parameters they must be separated by a space
- (e.g. KDCG d e).
-
-
- USAGE:
-
- As I said, the calculator emulates a hand-held version.
- Calculations are entered and performed just like you would
- say them:
-
- You would say,
- "6 plus 5 minus 13 times 4 divided by 2 equals".
- You would enter,
- 6 + 5 - 13 * 4 / 2 = (NOTE: "=" is the ENTER key)
-
- Actually, if you don't know how a cheap hand-held calculator
- works, you probably don't need this program.
-
- The KeyPad shown on the graphic is from an Enhanced keyboard.
- Other keyboards will work the same, only the location of some
- keys may be different.
-
- KDCG will automatically turn your NumLock and CapsLock on and
- return them to their original state when you exit the program.
- LEAVE THESE KEYS ON WHILE OPERATING THE CALCULATOR. If for some
- strange reason they are not automatically activated, please turn
- them on.
-
-
- FUNCTIONS:
-
- The screen displays all keys that are active with a short
- description of what they do. Hopefully, most are self
- explanatory and if not, a try or two should suffice. I
- don't plan to explain the white keys from the keypad or
- the specific application of the * / + keys, however
- the following is offered:
-
- Operator Keys:
- Operator keys cause the calculator to PERFORM AN OPERATION
- affecting the results shown in the display window and/or
- the screen listing.
-
- The keys are: +,*,/,=(ENTER),S and sometimes - and R.
- Also, while they are not strictly "operators", O and C
- will have some similar effects. You might note that the
- current mathematical operator (+,*,/,-) is always hilighted
- on the keypad display. + is the default operator.
-
- Minus Key (-):
- The minus key has two functions depending on when it is
- hit. If used directly after any operator, it simply
- becomes part of the next number entered, making it a
- negative number. Otherwise, it is an operator representing
- the subtraction function.
-
- Equal Key (= or ENTER):
- Your display will always show the current running total
- after hitting an operator key. The Equal key will clear
- the display and the running total, setting the current
- total to 0. Remember, the Equal key is also an operator.
-
- Dollar/Float Toggle (D):
- Toggles between Dollar Mode and Float Mode. Dollar mode
- always assumes 2 decimals -- particularly useful to do
- checkbooks and stuff. In Dollar Mode the decimal key is
- disabled. If you hit 123 the display will read 1.23. Be
- careful of multiply and divide in Dollar Mode (keystrokes
- "123 * 2" will result in 1.23 * .02 -- that result is NOT
- 246 -- it will be 0.02). I recommend using Float mode to
- multiply or divide. Float mode allows you to place the
- decimal and results will be rounded to the maximum capacity
- of the calculator -- which is pretty darn big.
-
- Printer Toggle (P):
- Toggles printer on and off. Obviously this assumes you have
- a printer and would like a tape of your activity. Most line
- feed type printers should work (don't use a laser). There is
- an error message built in if your printer is not ready to
- print, but I have found that checking the availability of a
- printer is not always reliable (funny switch settings, certain
- ram and external buffers, etc.). You'll just have to try it.
-
- Subtotal (S):
- Subtotal does pretty much what you expect. It lists the current
- running total without clearing it.
-
- Tape Scroller (T): [***** New to release 1.1 *****]
- Executes a sub-function allowing you to scroll through the tape
- listing that has "scrolled off the screen". It is limited to 500
- previous entries. The tape scroll buffer is cleared at startup
- and whenever "Over" (see below) is executed.
-
- Clear (C) and Backspace (<-):
- Clear DOES NOT clear the running total. Its only
- function is to remove all numbers that you have entered
- in prior to hitting an operator key. Backspace removes
- one number at a time. Hitting the Backspace key an
- appropriate number of times will produce the same results
- as Clear.
-
- Over (O):
- Over is just a quick way to remove the screen listing and reset
- the calculator. It will also set the printer toggle off and clear.
- the tape scroller buffer. Dollar/Float toggle and the Memory
- registers will not be affected.
-
- Quit (Q):
- You guessed it - EXIT. There is NO WARNING like "are you sure?".
- This isn't like a spreadsheet that you may have worked on for hours.
- I figure that if your done, your done!
-
- Memory Storage (M):
- Memory will "grab" the current running total and execute a sub-
- function allowing you to do a lot of things with the 9 memory
- registers. It will only function after an operator has executed.
-
- [You should remember that if you have hit the Equal
- key (ENTER) the current running total is 0. There
- is not a lot you can do with 0. So use M after +,/,
- *,S and sometimes -, C or R.]
-
- Upon execution, a new window will pop up displaying the "grabbed"
- total and asking you which memory register you want to work with.
- Select 1 - 9 (or 0 to just return to the calculator).
-
- Assuming you choose 1 - 9, the current value of that register will
- be shown and a series of options listed. Select the option you
- want. The result will be transferred to the selected register and
- a summary of what has happened will be displayed for you. At that
- point, just hit any key to return to the calculator. The stored
- value can simply be used to verify another calculation, called again
- and used in this sub-function, or Recalled into the calculator as
- explained below.
-
- Recall Memory (R):
- Recall will "grab" a stored memory value and transfer it to the
- calculator based on the operation set by the current operator.
- It will only work after an operator has been issued and will have
- no affect if the selected memory register value is 0.
-
- Upon execution, a new window will pop up asking you which memory
- register value to transfer. The window will also show you the
- current "inherent total" (running total of the calculator) and an
- indication of what you are about to do to that "inherent total"
- based on the current mathematical operator. This indication is
- significant because once you choose a register, the rest is
- automatic.
-
- This may sound complicated, and I guess it is (a little), but after
- you try it a few times it should be clear. The main thing to
- remember is that not only will a value be transferred, but the current
- operator will also be issued. This is intentional for the sake of
- speed. It saves a lot of keystrokes. You can get the same results
- by issuing an operator, keying the number you want by looking at
- the memory register and then issuing another operator.
-
-
- REQUISITE DISCLAIMER and OTHER STUFF:
-
- Every reasonable attempt has been made to offer a fun product that
- may be of some use and be "bug" free. I (the author) can, however,
- offer no guarantees as to the suitability or use of this program.
- Therefore (here we go)...
-
- THIS PRODUCT IS PROVIDED "AS IS" AND
- WITHOUT WARRANTIES EXPRESS OR IMPLIED.
- THE USER ASSUMES ALL RISK ASSOCIATED
- WITH THE USE OF THIS PROGRAM.
-
- You may copy and distribute this program freely. Please don't
- charge for it and please provide this DOC file with it.
-
- Anyone who is interested, can send the author (me) $5.00 or so.
- (Mainly, I'm curious to see if anyone is interested!)
-
- David A. Befort
- KD Ranch Enterprises (c)
- Rt.3, Box 8080
- Bartlesville, Ok. 74003
-
-
-
- P.S. While I'm not a programmer by profession, I have written a few
- other things -- usually because I can't find or buy precisely
- what I'm looking for. You may see some of these floating around.
-
- [All of my programs begin with KD -- logo bottom left of KDCG].
-
- KDQwik - a small, easy word processor. Extremely straight
- forward for a beginner or an executive, yet with
- a few twists (like real-time sort) for the more
- aggressive.
-
- KDGraph - a pull-down menu driven graphics package for EGA/VGA.
- It's fast and does some 3D stuff along with your basic
- bars,lines and pies.
-
- KDCalc - a non-graphics version of KDCG. Has a few more
- functions and can be made memory resident for
- pop-up capability.
-
- KDLogic - a set of 5 brain teaser logic puzzles (HiQ,Minefield,
- Mastermind,Fifteen Squares and Towers). Program can
- made memory resident for quick pop up and down.
-
- KDPoker - There are a lot of good blackjack games, but I couldn't
- find a good, true rendition of the Draw Poker machines
- that are now extremely popular in Las Vegas, Reno, etc.
- Two commercial versions I bought were awful. This plays
- pretty much like the real thing.
-
-