4. Using the hardware given to the right, show the addition of two numbers in steps as it would take place. A = 8.625, B = -7.125 Show the steps in detail. Also show the contents of different registers (R1, .. R8) and control bits (CI, .. C9). It is noted that Control bits (C1,.. C9) could be either 1 or 0 and you can assign the logic levels for particular operations. You must present your answer in a Table, given below. (Increase no of columns and rows as required) Operation R1 R2 R3 CI C2 Comments, if any Time Step 1 2 3 R1 Exponent Praction Sign Exponent Praction R2 Small ALU Compare exponents Exponent diference R3 C2 C3 C1 C4 Coro SMR4 Smaller beige Add BALU C5 C7 C6 Incremento decement R5 SA 08 R6 C9 Rounding hardware R7 Round Sign Exponent Fraction R8