Path: utzoo!attcan!uunet!munnari!vuwcomp!rata.vuw.ac.nz!newbery From: newbery@rata.vuw.ac.nz (Michael Newbery) Newsgroups: comp.arch Subject: Re: Leading zero and pop count Message-ID: <14352@comp.vuw.ac.nz> Date: 7 Nov 88 22:59:08 GMT References: <10882@hall.cray.com> <28200233@urbsdc> Sender: news@comp.vuw.ac.nz Reply-To: newbery@rata.vuw.ac.nz (Michael Newbery) Organization: Computing Serv. Ctr, Victoria Uni., Wellington, New Zealand Lines: 8 The Burrogues B6700 Leading One Test instruction had the mnemonic LOG2 since that is what the op approximates to. It also had a CBON (count binary ones) instruction. One thing that is difficult to do in software (counter examples are welcomed please!) and easy to do in hardware is to reverse a bit stream. Michael Newbery