Article View: comp.sys.ibm.pc.misc
Article #3409Re: Difference between a 386 and a 386sx
From: Mark Lord
Date: Mon, 24 Sep 1990 14:16
Date: Mon, 24 Sep 1990 14:16
18 lines
1586 bytes
1586 bytes
In article <47642@bigtex.cactus.org> james@bigtex.cactus.org (James Van Artsdalen) writes: > >OK, then let's use 32 bit instructions that *do* access memory. On an >SX they'll take long because it takes two cycles. So one could do a >"rep stosw" then a "rep stosd" and measure the ratio of time between >the two... This is a clever idea, that might work most of the time. However, caches could easily have an effect on this, and at best, this method will measure the memory/bus width, rather than the cpu type. A 386dx CAN be talking to 16-bit wide memory, it's just that most of us wouldn't bother with such a setup. But 16-bit memory cards provide cheap (and slow) memory for those who need it. -- ___Mark S. Lord__________________________________________ | ..uunet!bnrgate!mlord%bmerh724 | Climb Free Or Die (NH) | | MLORD@BNR.CA Ottawa, Ontario | Personal views only. | |________________________________|________________________|
Technical Details
Message-ID:
<4407@bwdls58.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!usc!ucla-cs!rutgers!news-server.csri.toronto.edu!utgpu!cunews!bnrgate!bwdls58!mlordReferences:
<1990Sep16.194605.11968@ecn.purdue.edu> <4383@bwdls58.UUCP> <14110@mentor.cc.purdue.edu> <4387@bwdls58.UUCP> <47642@bigtex.cactus.org>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!usc!ucla-cs!rutgers!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: <4407@bwdls58.UUCP> Date: 24 Sep 90 14:16:36 GMT References: <1990Sep16.194605.11968@ecn.purdue.edu> <4383@bwdls58.UUCP> <14110@mentor.cc.purdue.edu> <4387@bwdls58.UUCP> <47642@bigtex.cactus.org> Sender: mlord@bwdls58.UUCP Reply-To: mlord@bwdls58.bnr.ca (Mark Lord) Organization: Bell-Northern Research, Ottawa, Canada Lines: 18