555555555524. The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits: (a) increase ripple delay (b) add a 1 to complemented inputs (c) reduce propagation delay (d) determine sign and magnitude
5555555555128. Fast-look-ahead carry circuits found in most 4-bit full-adder circuits: (a) determine sign and magnitude (b) reduce propagation delay (c) add a 1 to complemented inputs (d) increase ripple delay