//EX4_4: Adder to add two 2-bit binary numbers and produce 3-bit sum

//clears the screen
clc

//clears already existing variables
clear

disp(' A | B | C | D | X | Y | Z |')
disp('----------------------------')
disp(' 0 | 0 | 0 | 0 | 0 | 0 | 0 |')
disp(' 0 | 0 | 0 | 1 | 0 | 0 | 1 |')
disp(' 0 | 0 | 1 | 0 | 0 | 1 | 0 |')
disp(' 0 | 0 | 1 | 1 | 0 | 1 | 1 |')
disp(' 0 | 1 | 0 | 0 | 0 | 0 | 1 |')
disp(' 0 | 1 | 0 | 1 | 0 | 1 | 0 |')
disp(' 0 | 1 | 1 | 0 | 0 | 1 | 1 |')
disp(' 0 | 1 | 1 | 1 | 1 | 0 | 0 |')
disp(' 1 | 0 | 0 | 0 | 0 | 1 | 0 |')
disp(' 1 | 0 | 0 | 1 | 0 | 1 | 1 |')
disp(' 1 | 0 | 1 | 0 | 1 | 0 | 0 |')
disp(' 1 | 0 | 1 | 1 | 1 | 0 | 1 |')
disp(' 1 | 1 | 0 | 0 | 0 | 1 | 1 |')
disp(' 1 | 1 | 0 | 1 | 1 | 0 | 0 |')
disp(' 1 | 1 | 1 | 0 | 1 | 0 | 1 |')
disp(' 1 | 1 | 1 | 1 | 1 | 1 | 0 |')
disp('X(A,B,C,D) = Σm(7, 10, 11, 13, 14, 15)')
disp('Y(A,B,C,D) = Σm(2, 3, 5, 6, 8, 9, 12, 15)')
disp('Z(A,B,C,D) = Σm(1, 3, 4, 6, 9, 11, 12, 14)')