Arithmetic research of logarithm and anti-logarithm converters and VLSI implementation
Dian Zhou · Computer Engineering and Applications Journal · 2007
This paper presents an improved binary-to-binary logarithm and anti-logarithm line approximation including its VLSI implementation.This arithmetic can increase precision well,compared with the newest references,the logarithm converter's percent error reduces 46.1% and the anti-logarithm converter's percent error reduces 32.2%.A leading-one detector circuit is designed to obtain the leading-one position of an input binary word and error-correcting circuit is designed to reduce error.The implementation is simply,uses combinational logic only and calculates the approximation in a single clock cycle.