From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tommy McCabe Subject: Re: AW: [Fwd: Re: EDE - Personal Suggestions and Ideas] Date: Thu, 27 May 2004 14:07:42 -0700 (PDT) Sender: linux-8086-owner@vger.kernel.org Message-ID: <20040527210742.88001.qmail@web51310.mail.yahoo.com> References: <200405271032.19636.dg@cowlark.com> Mime-Version: 1.0 Return-path: In-Reply-To: <200405271032.19636.dg@cowlark.com> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-8086@vger.kernel.org --- David Given wrote: > On Thursday 27 May 2004 08:14, Andrey Romanenko > wrote: > > Dan Olson wrote: > > >Just a thought, maybe if using the 286's features > is something we want to > > >do, then why not look into Xenix and any other > Unix of the era that runs > > >on the 286 and see if any ideas can be gotten > from them. I'm sure we're > > >re-inventing the wheel to some extent. > > > > You are talking about copyrighted software with > closed sources. The > > total maximum we can found is a binary > disribution. > > You could look at Minix instead; it's open source > and handles 286 protected > mode. It uses the 286's MMU to put segments anywhere > in memory while keeping > binary compatibility with the 8086; basically, you > just run Minix on the 286 > and you can use up to 16MB of RAM where on the 8086 > you can use up to 640kB. > It's completely invisible and works very nicely. Last time I checked, Minix 2.0.x didn't use 286 protected mode- it had an edition for 386s+ and an edition for 8086s/286s. 286 protected mode isn't binarily comptible with real mode or 386 protected mode- at the very least, the memory handling work differently. However, there are various tricks to access over 640KB in real mode, like XMS and EMS. > -- > +- David Given --McQ-+ "For is it not written, > wheresoever two or three > | dg@cowlark.com | are gathered together, yea > they will perform the > | (dg@tao-group.com) | Parrot Sketch?" --- _Not The > 9 o'Clock News_ > +- www.cowlark.com --+ > - > To unsubscribe from this list: send the line > "unsubscribe linux-8086" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/