Path: utzoo!mnetor!uunet!husc6!bbn!rochester!PT.CS.CMU.EDU!K.GP.CS.CMU.EDU!lindsay From: lindsay@K.GP.CS.CMU.EDU (Donald Lindsay) Newsgroups: comp.arch Subject: Re: RISC criteria (was Intel 432) Message-ID: <701@PT.CS.CMU.EDU> Date: 23 Jan 88 02:22:54 GMT References: <243@spar.SPAR.SLB.COM> <2707@omepd> <1071@cpocd2.UUCP> <7246@apple.UUCP> Sender: netnews@PT.CS.CMU.EDU Organization: Carnegie-Mellon University, CS/RI Lines: 12 In article <1071@cpocd2.UUCP> howard@cpocd2.UUCP (Howard A. Landman) writes: >If anyone sees a photo of the chip, here's an easy way to tell RISC from CISC: >Identify the datapath and RAM (including register file and cache). If they >add up to less than half the chip area, it's a CISC. That's because the rest >is probably all control, and any chip that's more than half control does not >have a simple architecture. Some recent chips seem to put more real estate into bonding pads and pin drivers, than into anything else. I assume that the power consumption is there, too. -- Don lindsay@k.gp.cs.cmu.edu CMU Computer Science