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. -Howard
