Title :
FPGA Designs with Optimized Logarithmic Arithmetic
Author :
Fu, Haohuan ; Mencer, Oskar ; Luk, Wayne
Author_Institution :
Dept. of Geophys., Stanford Univ., Stanford, CA, USA
fDate :
7/1/2010 12:00:00 AM
Abstract :
Using a general polynomial approximation approach, we present an arithmetic library generator for the logarithmic number system (LNS). The generator produces optimized LNS arithmetic libraries that improve significantly over previous LNS designs on area and latency. We also provide area cost estimation and bit-accurate simulation tools that facilitate comparison between LNS and floating-point designs.
Keywords :
field programmable gate arrays; floating point arithmetic; logic design; polynomial approximation; FPGA designs; arithmetic library generator; floating point designs; general polynomial approximation approach; logarithmic number system; optimized logarithmic arithmetic; Arithmetic; Costs; Delay; Design optimization; Educational institutions; Field programmable gate arrays; Geophysics computing; Hardware; Libraries; Polynomials; Table lookup; Throughput; Reconfigurable hardware; computer arithmetic; computer systems organization; general; mathematics of computing.; numerical analysis; special-purpose and application-based systems;
Journal_Title :
Computers, IEEE Transactions on
