Adder-Subtractor-Circuits Parametrized Verilog implementation of different architectures of adder / subtractor circuits.

This Verilog module implements a 4-bit Adder-Subtractor circuit, allowing both addition and subtraction operations based on a control signal. The design uses simple combinational logic to compute the ...

Another novel feature is that the developed half adder and half subtractor are operated by the same DNA platform in an enzyme-free system and share a constant threshold setpoint.