PARALLEL CARRY GENERATION NETWORK, PARALLEL ADDER NETWORK, CARRY GENERATION MODULE, MULTI-BIT ADDER NETWORK AND CARRY PROPAGATION UNIT

摘要

PURPOSE: To provide an N-bit binary adder with highly parallel structure improving a speed. ;CONSTITUTION: The adder 500 consists of a plurality of parallel module two adders forming the sum of an arithmetic number and a carry bit. A carry input is generated by a conditional propagating generator 400 and an unconditional carry generator 300 generating a carry bit at a log₂ 2N arithmetic level.;COPYRIGHT: (C)1994,JPO