Low power floating-point multiplication and squaring units with shared circuitry

Abstract

Abstract-An architecture for a combinational floating point multiplier and squarer is described for the purpose of producing a low power floating point square with small area requirements. The floating-point multiplier and squarer architecture are compared to demonstrate the power advantage of the squarer. The multiplier and squarer are combined into one circuit in order to take advantage of the squarer power improvements with a minimal increase in area. Shared circuitry among the units provides justification for inclusion of a dedicated squarer since a small amount of additional circuitry is required and the power savings for squaring computations is significant as compared to the use of a general-purpose multiplier to generate a squared value.