Message-ID: <3282A05D.2C10@ananke.amu.edu.pl>
Date: Fri, 08 Nov 1996 03:52:13 +0100
From: Mark Habersack <grendel AT ananke DOT amu DOT edu DOT pl>
Reply-To: grendel AT ananke DOT amu DOT edu DOT pl
Organization: Home, sweet home
MIME-Version: 1.0
To: leathm AT gbrmpa DOT gov DOT au
CC: Mark Wodrich <mwodrich AT ct DOT lia DOT net>, djgpp AT delorie DOT com
Subject: Re: Porting real-time, multiprocess, distrib. OS Kernel to djgpp?
References: <1996Nov5 DOT 133017 AT uctvms DOT uct DOT ac DOT za> <327FF2E8 DOT 68B4 AT gbrmpa DOT gov DOT au> <01bbcc19$46d910a0$22901ac4 AT mark-s-pc> <32813B7E DOT 79E2 AT gbrmpa DOT gov DOT au>
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Leath Muller wrote:

> > The kernel sits on top of DOS, and is pretty small (< 64Kb), so you have
> > around 500Kb left in real-mode DOS.
> 
> If the kernel is _that_ small, then it should end up pretty close to the
> same size using csdpmi for the memory allocation, virtual memory
> control,
> etc...
There's even smaller real-time kernel available. It's the RTX RM RT
kernel (sorry, don't remember URLs - check Yahoo! in
Computers|OperatingSystems|Real-Time) which takes circa 30 KB of memory.
But the absolute record here is the QNX OS kernel - 10 KB in PROTECTED
MODE!!! How about that?


-- 
*********************************************************************************
You tell me I'm drunk then you sit back and smug a while convinced that
you're
right, that you're still in command of your senses. I laugh at your
superior
attitude, your insincere platitudes will make me throw up. The sooner
you realise
I'm perfectly happy if I'm left to decide the company I choose.
************************* http://ananke.amu.edu.pl/~grendel
*********************