Tobermory <[EMAIL PROTECTED]> scribbled: > Thomas Harte wrote: >>> If you >>> store a table of square roots for the Pythagoras, it speeds up >>> nicely (big table, but hell, you'll already be storing >>> perspective correction tables and SINE tables, so you won't be >>> bothered about memory). >> >> There is an entire web page somewhere dedicated to getting fast >> sqrts. I've seen one which uses only a 256 or 512 byte table but >> can do a 16bit sqrt in less than 100 cycles. > > Have you got the URL for this??? I'm quite interested in how it's > done.
Prolly uses log tables and then iterates on the solution. Well, maybe :) Simon
