4-bit adder subtractor circuit. A 4-bit Full Adder is designed to generate a 4-bit Sum and is designed by combining four 2-bit Full Adders and as a result shows the Four bits output along with the ...

This paper proposes a novel architecture for high speed combined binary/decimal addition/subtraction. We start by designing a correction-free Binary Coded Decimal (BCD) digit adder which exhibits high ...

Reversible logic has gained the interest of many researchers due to its applicability in emerging low power technologies such as Quantum computing, QCA, optical computing etc., Adders/Subtractors are ...