> Look carefully, and I think you'll figure out that the functions > on the page referenced ARE implementations of Galois LFSRs. > Particularly clever implementations thereof that don't look > like they contain nearly enough instructions do so ... The page also contains a few others that look a bit dodgy. I was mainly aiming at the one at the top, that claims to rotate with carry and to output that as random (AFAICT). -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist