Building alu based 4-bit addition using two 74sl74 (4 d ff's) and a 4-bit adder. provide an implementation to perform the following alu addition operation add a. b- this operation adds a and b and stores the result in a create a 4-bit register using 4 d ffs and it acts as an accumulator. this accumulator is connected with an adder and is performing the following task the initial value of the accumulator is 0 and every time a clock pulse is given, it adds the current value of the accumulator (let's call it a) and a given 4-bit input b. the b input is provided using 4 input switches. thus, the accumulator stores the addition of multiple 4-bit values provided to the alu -draw the circuit/logic diagram.