Adder And Subtractor. Applications of adders and subtractor adders subtractors are wildly used in in computer s alu arithmetic logic unit to compute addition as well as cpu. The figure below shows the 4 bit parallel binary adder subtractor which has two 4 bit inputs as a3a2a1a0 and b3b2b1b0.
Parallel adder subtractor. The figure below shows the 4 bit parallel binary adder subtractor which has two 4 bit inputs as a3a2a1a0 and b3b2b1b0. When m 0 then the circuit acts as an adder and when m 1 then the circuit acts as a subtractor.
Adder and subtractor are basically used for performing arithmetical functions like addition subtraction multiplication.
Parallel adder subtractor. It is also possible to construct a circuit that performs both addition and subtraction at the same time. Below is a circuit that does adding or subtracting depending on a control signal. Applications of adders and subtractor adders subtractors are wildly used in in computer s alu arithmetic logic unit to compute addition as well as cpu.
