Article View: comp.lang.asm.x86
Article #202Re: Big Real Mode above 4Gb
From: MGMidget
Date: Sun, 08 Sep 2002 17:55
Date: Sun, 08 Sep 2002 17:55
21 lines
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2860 bytes
"Herman Dullink" <dullink@hetnet.nl> wrote in message news:alf6es$lc8$1@reader10.wxs.nl... > > The only way to address more than 4GB (if your system _has_ more than 4GB) > is to use paging. > The problem is, that only 80386 and some 80486 CPUs can have paging > enabled in real mode, and have a physical address space of 4GB. > The CPU's which _do_ have a larger physical address space cannot have > paging enabled in real mode... I'm only going to be running on newer Pentiums with larger 36-bit physical address capabilities. I presume that nothing will happen until I set the PAE bit, but paging with 36-bits looks very complicated. And if the PAE bit is ignored in Big Real Mode I'm wasting my time anyway. This doesn't sound like a fruitful avenue to follow. Thanks, though, -- TW
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fdc9c,c9b261141e7752 X-Google-Attributes: gidfdc9c,public X-Google-Thread: 114917,c9b261141e7752 X-Google-Attributes: gid114917,public X-Google-ArrivalTime: 2002-09-08 11:57:10 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!paloalto-snf1.gtei.net!crtntx1-snh1.gtei.net!cambridge1-snf1.gtei.net!news.gtei.net!bos-service1.ext.raytheon.com!cyclone.swbell.net!newsfeed1.easynews.com!easynews.com!easynews!sn-xit-02!sn-xit-06!sn-post-01!supernews.com!corp.supernews.com!news.crayne.org!clax86!robomod!not-for-mail From: "MGMidget" <twestern@earthlink.net> Newsgroups: comp.lang.asm.x86,intel.microprocessors.pentium_iii Subject: Re: Big Real Mode above 4Gb Approved: CLAX86 Moderators <ccrayne@crayne.org> Date: Sun, 8 Sep 2002 17:55:55 +0000 (UTC) Organization: EarthLink Inc. -- http://www.EarthLink.net Message-ID: <OgLe9.15271$LI2.1131945@newsread2.prod.itd.earthlink.net> Sender: clax86@odin.asgard References: <DPwe9.14205$6i4.1145514@newsread1.prod.itd.earthlink.net> <alf6es$lc8$1@reader10.wxs.nl> Reply-To: "MGMidget" <twestern@earthlink.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-CLAX86-Policy: http://www.pacificsites.com/~ccrayne/clax86.html X-CLAX86-Faq: http://www2.dgsys.com/~raymoon/x86faqs.html X-CLAX86-Info-1: Send submissions to comp-lang-asm-x86@moderators.isc.org X-CLAX86-Info-2: Send technical complaints to ccrayne@crayne.org X-CLAX86-Info-3: Send complaints about policy to ccrayne@crayne.org X-Comment: moderators do not necessarily agree or disagree with this article. X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-MailScanner: Found to be clean X-SpamAssassin: not spam, (##) score=1.8, required 5, FROM_NAME_NO_SPACES, KNOWN_BAD_DIALUPS X-UIDL: i*2"!7'=!!m@l!!&5;!! X-Complaints-To: abuse@supernews.com Lines: 22