Design of a Composite Arithmetic Unit for Rational Numbers

As we advance into the new century, computers of the future will require techniques for arithmetic operations that take advantage of the modern technology and yield accurate results. Floating-point arithmetic has been in use for nearly forty years but is plagued with inaccuracies and limitations which necessitates introduction of a new concept in computer arithmetic called composite arithmetic. This paper describes composite arithmetic and design of an arithmetic unit based on this concept.