Carry-ripple adder has 4 sum inputs for receiving 4 input bits, 3 carry inputs for receiving 3 input carry bits, sum output for outputting output summation bit of value w, 3 carry outputs for outputting 3 output carry bits

摘要

The carry-ripple adder (1) has four sum inputs (2-5) for receiving four input bits to be summed of value w, three carry inputs (6-8) for receiving three input carry bits (C0IN, C1IN, C2IN) of value w, a sum output for outputting an output summation bit of value w and three carry outputs (10-12) for outputting three output carry bits of value 2w. An independent claim is also included for an adder for summing a number of. bit sets.