Article View: comp.sys.ibm.pc.misc
Article #3464Re: Difference between a 386 and a 386sx
From: Michael D. Kersenbrock
Date: Wed, 26 Sep 1990 23:12
Date: Wed, 26 Sep 1990 23:12
17 lines
1378 bytes
1378 bytes
Yes, the DX has a 16-byte prefetch queue, although my SX book doesn't label the depth. In any case, another way is by looking at the DX register upon reset. (how you get it reset is left as an exercise for the reader). The byte nibble is 03H in a DX and 023H in a SX. The lower byte is an unsigned 8-bit number giving the rev. level (although its not guaranteed to increment with each rev, or that there will be a uniform sequence). Still don't really know what knowing this buys me... :-) -- Mike Kersenbrock Tektronix Logic Analyzers Division michaelk@copper.WR.TEK.COM Aloha, Oregon
Technical Details
Message-ID:
<3617@wrgate.WR.TEK.COM>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!mintaka!ogicse!zephyr.ens.tek.com!wrgate!copper!michaelkReferences:
<1412@svin02.info.win.tue.nl> <4388@bwdls58.UUCP> <1990Sep20.185214.780@sj.ate.slb.com> <1990Sep21.002015.1201@thyme.jpl.nasa.gov> <JSP.90Sep26143232@milton.biostr.washington.edu>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!mintaka!ogicse!zephyr.ens.tek.com!wrgate!copper!michaelk From: michaelk@copper.WR.TEK.COM (Michael D. Kersenbrock) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: Difference between a 386 and a 386sx Keywords: In article <JSP.90Sep26143232@milton.biostr.washington.edu> jsp@milton.biostr.washington.edu (Jeff Prothero) writes: Message-ID: <3617@wrgate.WR.TEK.COM> Date: 26 Sep 90 23:12:44 GMT References: <1412@svin02.info.win.tue.nl> <4388@bwdls58.UUCP> <1990Sep20.185214.780@sj.ate.slb.com> <1990Sep21.002015.1201@thyme.jpl.nasa.gov> <JSP.90Sep26143232@milton.biostr.washington.edu> Sender: news@wrgate.WR.TEK.COM Reply-To: michaelk@copper.WR.TEK.COM.UUCP (Michael D. Kersenbrock Lines: 17