newb.. help..

To perform basic calculations on a set of data in a file called “CALC.TXT”. The calculations are all based on integer values and the final result should not exceed 9910. Only the following mathematical operations should be used ( + , - , x , / ).
For example, if the file CALC.TXT contains the following data/expression
23 –10 * 5 =
then, your program should output 65.

The calculation is performed in the order in which the data provided, so do not follow the normal mathematical rules. The only way to identify that a result needs to be displayed is when we arrive at the ‘equals’ (‘=’) sign.


need help..

how do u scan this?--> 23 –10 * 5 =
like 23 then where store it after that the minus sign

or pls cre8 a sample program ofhow it could be done.. now i only know how to open the calc.txt but i have no idea how to perform maths calc

Well, first start with getting a substring consisting of all numbers. That will be your operand.

Now you could create a set of functions that are dictated by the non-numeric, non-whitespace character that it receives next. This can be done in a series of CMP commands.

Once it enters the function (actually it would probably be called a subroutine but whatever) get the next operand using the same process and operate on the two accordingly.

Do this for the rest of the expression. You will probably need a StringToINT converting function for this.

I hope this helps.