On portable macrocell FPU generators for division and square rootoperators complying to the full IEEE-754 standard

摘要

In this paper, we investigate the design of macrocell generatorsnof division and square root floating-point operators. The numbernrepresentation used in our operators is the IEEE-754-1985 standard fornbinary floating-point numbers. The design and implementation of thengenerators rely on a powerful multi-view macroblock generator toolncalled GenOptim. This computer-aided design (CAD) tool is able to outputna set of different descriptions for several VLSI technologies as well asnfield programmable gate arrays (FPGAs). The division and square rootnoperators described in this paper use the signed-binary-digitnrepresentation. We start first by describing the operators for thensignificand, then we investigate the IEEE floating-point operators.nThroughout this paper, and wherever appropriate, we present thenimplementation results using the GenOptim environment