**Implementation of Adder-Subtracter Design with VerilogHDL**

**Sunday, July 07 15 / pdf**

If the n 1-bit (full) adders stages are replaced in the n-bit ripple-carry ... (a) (b) Fig. 5 Low-Cost Addition and Subtraction of Twos-Complement Numbers (a) 4-Bit Adder Module ...