A Digital Decoding Technique

In the course of the design of a small-scale digital computer for use as a communications buffer and processor it was found possible to greatly increase the capability of the computer in the encoding and decoding of a number of error control codes without significantly increasing the complexity of the hardware by the addition of three commands to the instruction repertoire of the computer. These commands are Galois Field Multiply, Galois Field Divide, and Compute Word Parity.