A Novel Single/Double Precision Normalized IEEE 754 Floating-Point Adder/Subtracter

Abstract

This paper demonstrates the design of a fully IEEE 754-compliant floating-point adder and subtractor. This design focuses on creating a high-speed, low-power design while still adhering completely to the IEEE 754 standard. This design's novelty comes in the form of it's 64-bit prefix adder structure, and the parallelization of it's subcomponents. The adder/subtractor has full support for 32-bit and 64-bit operands, as well as the ability to convert integer operands to the IEEE 754 standard. Synthesis results presented use a cmos32soi 32nm CMOS technology and ARM standard-cells.