Title :
On portable macrocell FPU generators for division and square root operators complying to the full IEEE-754 standard
Author :
Aberbour, Mourad ; Houelle, Alain ; Mehrez, Habib ; Vaucher, Nicolas ; Guyot, Alain
Author_Institution :
Univ. Pierre et Marie Curie, Paris, France
fDate :
3/1/1998 12:00:00 AM
Abstract :
In this paper, we investigate the design of macrocell generators of division and square root floating-point operators. The number representation used in our operators is the IEEE-754-1985 standard for binary floating-point numbers. The design and implementation of the generators rely on a powerful multi-view macroblock generator tool called GenOptim. This computer-aided design (CAD) tool is able to output a set of different descriptions for several VLSI technologies as well as field programmable gate arrays (FPGAs). The division and square root operators described in this paper use the signed-binary-digit representation. We start first by describing the operators for the significand, then we investigate the IEEE floating-point operators. Throughout this paper, and wherever appropriate, we present the implementation results using the GenOptim environment.
Keywords :
IEEE standards; VLSI; circuit CAD; field programmable gate arrays; floating point arithmetic; integrated logic circuits; logic CAD; software portability; CAD tool; FPGA; GenOptim environment; IEEE-754 standard compliance; VLSI technologies; computer-aided design tool; division operators; field programmable gate arrays; floating-point operators; multi-view macroblock generator tool; number representation; portable macrocell FPU generators; signed-binary-digit representation; square root operators; Design automation; Digital arithmetic; Field programmable gate arrays; Floating-point arithmetic; Laboratories; Libraries; Macrocell networks; Packaging; Power generation; Very large scale integration;
Journal_Title :
Very Large Scale Integration (VLSI) Systems, IEEE Transactions on
