The following table describes a very simple arithmetic unit. Given two 8 bit inputs (X, Y), the two control bits (c1, co) select an arithmetic function to be carried out on X and Y and places the output in z. Write a Verilog module that carries out the described function. Control Bits Output CO Z c1 0 0 X + Y 0 1 x- Y 1 0 X < < Y 1 1 X >> Y