A subtraction-shift-type divider using a dividend or partial remainder represented by signed digits taking any of the values -1, 0, 1 and a divisor by twos complement representation. A selector, responding to values of a quotient digit at respective time points during the execution of division, converts...http://www.google.fr/patents/US5467299?utm_source=gb-gplus-shareBrevet US5467299 - Divider and microcomputer including the same