Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!howland.erols.net!europa.clark.net!newsfeed2!news.easystreet.com!not-for-mail From: tedm@portsoft.com Newsgroups: comp.unix.advocacy,comp.unix.bsd.freebsd.misc,comp.os.linux.advocacy,comp.os.linux.misc Subject: Re: ( FreeBSD > root < Linux ) > /dev/flame Date: 17 Apr 1997 05:23:23 GMT Organization: Easystreet Online Services Lines: 15 Message-ID: <5j4c4b$sjc$4@easystreet03> References: <33513993.167EB0E7@sarenet.es> <5iruhb$rde@idiom.com> <slrn5l673t.4k.c_chaos@chaosnet.wahnapitae.on.ca> <5j2n3u$54p@idiom.com> Reply-To: tedm@portsoft.com NNTP-Posting-Host: mail.portsoft.com X-Newsreader: IBM NewsReader/2 v1.2.5 Xref: euryale.cc.adfa.oz.au comp.unix.advocacy:39058 comp.unix.bsd.freebsd.misc:39187 comp.os.linux.advocacy:93270 comp.os.linux.misc:170230 In <5j2n3u$54p@idiom.com>, jsi@idiom.com (Michael Craft) writes: >> Well, okay, Minix isn't exactly "power", but it isn't meant to be, >> and I've seen nothing else make complete use of the i286 the way it does. > >It goes into 286 protected mode, I guess? The real mode is just no >good. > Not necessairly, the '286 had the secret loadall instruction, used by the DOS 3.3 version of ramdisk, the IBM version of vdisk, and the DOS version of himem.sys. Since the '286 could only return from protected mode by resetting the CPU, and real mode could only address the bottom 1 meg, didn't you ever wonder how you could access "XMS" memory on a 286 under DOS? ;-)