Article View: comp.sys.ibm.pc.misc
Article #3280Re: Difference between a 386 and a 386sx
From: Mark Lord
Date: Wed, 19 Sep 1990 15:04
Date: Wed, 19 Sep 1990 15:04
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1551 bytes
In article <14110@mentor.cc.purdue.edu> edgincd2@mentor.cc.purdue.edu (Chris Edgington *Computer Science Major*) writes: > >If you wanted to determine whether or not the chip you are using is a 386 >or a 386sx, couldn't you just execute some 32 bit intructions and time the >number of machine cycles it takes to execute them. Good in theory.. but cannot be done. In order to "time" them, you need to know the exact CPU clock rate, which is another unknown. Also, caches and stuff can affect this. Ahha you say, so why not use 32-bit instructions that do not access memory? Simple reason: that would not tell you anything, since the 386sx IS a 32-bit processor inside the chip. -- ___Mark S. Lord__________________________________________ | ..uunet!bnrgate!mlord%bmerh724 | Climb Free Or Die (NH) | | MLORD@BNR.CA Ottawa, Ontario | Personal views only. | |________________________________|________________________|
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!jarthur!usc!julius.cs.uiuc.edu!wuarchive!rex!samsung!cs.utexas.edu!news-server.csri.toronto.edu!utgpu!cunews!bnrgate!bwdls58!mlord From: mlord@bwdls58.bnr.ca (Mark Lord) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: Difference between a 386 and a 386sx Keywords: 386 386sx Message-ID: <4387@bwdls58.UUCP> Date: 19 Sep 90 15:04:59 GMT References: <1990Sep16.194605.11968@ecn.purdue.edu> <4383@bwdls58.UUCP> <14110@mentor.cc.purdue.edu> Sender: mlord@bwdls58.UUCP Reply-To: mlord@bwdls58.bnr.ca (Mark Lord) Organization: Bell-Northern Research, Ottawa, Canada Lines: 17