Date: Sat, 29 Mar 1997 12:58:55 -0800 (PST) From: Jonathan Mini <mini@micron.efn.org> To: Gary Clark II <gclarkii@main.gbdata.com> Cc: The Hermit Hacker <scrappy@hub.org>, msmith@atrad.adelaide.edu.au, freebsd-emulation@FreeBSD.ORG Subject: Re: Latest doscmd report Message-ID: <Pine.BSF.3.91.970329125713.18307A-100000@micron.efn.org> In-Reply-To: <199703270149.TAA04809@main.gbdata.com>
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On Wed, 26 Mar 1997, Gary Clark II wrote: > Pcemu is a program that emulates an XT in software. It was written a couple > of years ago by a British grad student. It will run basic pc software on > any platform with X just about. About like a primitive version of SoftPC. > > DosCMD is a REAL vm86 mode XT emulator. I would like to say that DosCMD doesn't emulate an XT, it emulates real mode. Which means that it works jsut like an i386 or i486 in vm86 mode. The difference is a _big_ deal. You get 32-bit registers for math, and a whoel load of other extremely useful goodies. The only i386 instructinos you can't run in vm86 mode are the ones you can't run in a non-priveledged protected mode task -- because vm86 _is_ a protected mode task. > > > Gary > -- > Gary Clark II (N5VMF) | I speak only for myself and "maybe" my company > gclarkii@GBData.COM | Member of the FreeBSD Doc Team > Providing Internet and ISP startups - http://WWW.GBData.com for information > FreeBSD FAQ at ftp://ftp.FreeBSD.ORG/pub/FreeBSD/docs/FAQ.latin1 > > Jonathan Mini (j_mini@efn.org) ... bleakness ... desolation ... plastic forks ...
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