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Modula Definition | 1987-04-02 | 1.8 KB | 69 lines |
- DEFINITION MODULE CalcFunctions;
-
- (*
-
- This module creates the functions for the calculator.
- This is the lowest level module.
-
- Four functions need the gadget information and are in the
- Module CalcGadgets. These functions are:
- STO
- RCL
- DEG (toggles between degrees and radians)
- GOLD (selects alternate gadgets in display)
-
-
- Created: Duncan Prindle, September 10, 1986
-
- Modified: Perhaps
-
- *)
-
-
- TYPE ErrorType = (NoError, DivideByZero, NegSqrt, NegLog, NegLn,
- XTooBigForSIN, AsinTooBig, XTooBigForCOS, AcosTooBig,
- XTooBigForTAN, OverFlow, piOver2, OtherError);
-
- VAR
- X : REAL;
- SAME : BOOLEAN;
- DECI : BOOLEAN;
- NDeci : INTEGER;
- INDEG : BOOLEAN;
- stored : ARRAY[0..9] OF REAL;
-
- PROCEDURE BLANK (): ErrorType;
- PROCEDURE CLRStack;
- PROCEDURE StackUp;
- PROCEDURE StackDown;
- PROCEDURE Add (): ErrorType;
- PROCEDURE Subtract (): ErrorType;
- PROCEDURE Multiply (): ErrorType;
- PROCEDURE Divide (): ErrorType;
- PROCEDURE POINT (): ErrorType;
- PROCEDURE PI (): ErrorType;
- PROCEDURE CLX (): ErrorType;
- PROCEDURE RDN (): ErrorType;
- PROCEDURE ENTER (): ErrorType;
- PROCEDURE LASTX (): ErrorType;
- PROCEDURE SIN (): ErrorType;
- PROCEDURE ASIN (): ErrorType;
- PROCEDURE COS (): ErrorType;
- PROCEDURE ACOS (): ErrorType;
- PROCEDURE TAN (): ErrorType;
- PROCEDURE ATAN (): ErrorType;
- PROCEDURE LN (): ErrorType;
- PROCEDURE EXP (): ErrorType;
- PROCEDURE TENtotheX (): ErrorType;
- PROCEDURE LOG (): ErrorType;
- PROCEDURE YtotheX (): ErrorType;
- PROCEDURE OneOverX (): ErrorType;
- PROCEDURE XSquared (): ErrorType;
- PROCEDURE SQRT (): ErrorType;
- PROCEDURE XtoY (): ErrorType;
- PROCEDURE CHS (): ErrorType;
- PROCEDURE CLRST (): ErrorType;
- PROCEDURE EXTENDX( Digit: CARDINAL );
-
- END CalcFunctions.
-