Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!snorkelwacker!spdcc!esegue!johnl From: johnl@esegue.segue.boston.ma.us (John R. Levine) Newsgroups: comp.arch Subject: Re: Why The Move To RISC Architectures? ('386 vs. RISC) Message-ID: <1990Mar22.190941.1184@esegue.segue.boston.ma.us> Date: 22 Mar 90 19:09:41 GMT References: <28012@cup.portal.com> <289@emdeng.Dayton.NCR.COM> Reply-To: johnl@esegue.segue.boston.ma.us (John R. Levine) Organization: Segue Software, Cambridge MA Lines: 14 In article <289@emdeng.Dayton.NCR.COM> hrich@emdeng.UUCP (George.H.Harry.Rich) writes: >It might even be true that a complex instruction set designed ideally for >compiler code generation might beat RISC. ... I doubt it. The IBM 801 project included some of the best compiler people around and they came up with the original RISC machine which was quite stripped down, and an extremely fancy compiler named PL.8 which generates fantastic code for it. There are some slightly exotic instructions, e.g. shift register N and put the result in register N+1, but nothing very complicated. -- John R. Levine, Segue Software, POB 349, Cambridge MA 02238, +1 617 864 9650 johnl@esegue.segue.boston.ma.us, {ima|lotus|spdcc}!esegue!johnl "Now, we are all jelly doughnuts."