Path: utzoo!utgpu!water!watmath!clyde!att!rutgers!mailrus!uflorida!gatech!linus!munck
From: munck@linus.UUCP (Robert Munck)
Newsgroups: comp.sys.intel
Subject: Re: 386 Protect mode references/source needed
Message-ID: <40592@linus.UUCP>
Date: 2 Oct 88 13:53:31 GMT
References: <0XEIrAp88k-0MEAUxy@andrew.cmu.edu>
Reply-To: munck@linus.UUCP (Robert Munck)
Organization: The MITRE Corporation, Bedford MA
Lines: 23

In article <0XEIrAp88k-0MEAUxy@andrew.cmu.edu> ks26+@andrew.cmu.edu (Kenneth Sykes) writes:
>I am trying to write a protected mode application under the 386, and am
>looking for pointers to books/articles and especially source code for
>entering and leaving protected mode.
>
>Paging and multiple tasks are not needed, but would be nice to have.

If you can afford a couple of hundred dollars, by far your easiest
path is to run under the Phar Lab Run-Time Extender.  It gets you
in and out of protected mode AND makes all DOS services available
to your protected mode program.

If you can wait a bit, I'm writing an OS for the 386 that supports
full multitasking, protection, dynamic paging, and just about every-
thing else the 386 can do.  It's in Pascal and will be available in
the public domain when it's debugged, before the end of the year.
I've written maybe two-dozen operating systems and real-time kernels
in 22 years, and the 386 is by far the most enjoyable to write an
OS for.  This one is "multi-level secure" -- supports users and data
at different classification levels and markings -- and is intended to
support the new standard Ada Programming Support Environment interface,
DOD-STD-1838A.
                            -- Bob Munck, munck@MITRE-Bedford.ARPA