Combined adder and decoder digital circuit

摘要

An address used to access on-chip memory is calculated by summing two binary numbers to obtain an N-bit address. The N-bit address is decoded into a one-out-of-2N signal to select the addressed memory location. Instead of performing these operations sequentially, the addition and decoding are done at the same time, saving time and power and enabling changes to microprocessor organization and operation that enhance performance.