In the design stage all the data and the findings must be documented in the form of detailed data flow diagrams(DFDs)data dictionary, logical data structure and miniature specification. in this view start the main points to be considered???

*write a program that defines symbolic names for several string literals (chars between quotes). * use each symbolic name in a variable definition. * use of symbolic to compose the assembly code instruction set can perform vara = (vara - varb) + (varc - vard); ensure that variable is in unsigned integer data type. * you should also further enhance your symbolic logic block to to perform expression by introducing addition substitution rule. vara = (vara+varb) - (varc+vard).