1. (11 marks) Write a module for a 8 bit prefix adder. Instantiate the module on

Question

1. (11 marks) Write a module for a 8 bit prefix adder. Instantiate the module on DE2 board and design an appropriate test circuit. Then extend the design to produce a 2" bit prefix adder where n is an arbitrary integer- valued parameter. Test your design in a simulator, e.g. ModelSim, using an appropriate test-scheme. Marking Criteria: The mark is calculated according to the formula fa f t. The value of fa depends on the extent to which your circuit is able to meet the specifications of the 8 bit adder. If it satisfies all the requirements, then 3. If it meets a subset of the specifications then fa

Explanation / Answer

#include <iostream>

#include <cmath>

Using name space std;

Int main()    {

        Float a, b, c, x1, x2, discriminant, realpart, imaginarypart;

        Cout << “enter coefficients a, b and c: “;

        discriminant =b*b -4*a*c;

        If (discriminant > 0)   {

               X1 = (-b + sqrt(discriminant)) / (2*a);

              X2 = (-b – sqrt(discriminant)) / (2*a);

              cout << “Roots are real and different. “ << end1;

              cout<< “x1 = “ << x1 << end1;

               cout<< “x2 = “ << x2 << end1;

       }

       else if (discriminant == 0) {

             cout << “Roots are real and samet. “ << end1;

              X1 = (-b + sqrt(discriminant) / (2*a);

              cout << “x1 = x2 =” << x1 << end1;

      }

    else {

             realpart = -b/(2*a);

              imaginarypart = sqrt(discriminant) / (2*a);

              cout << “Roots are real and different. “ << end1;

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