Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!rochester!udel!princeton!siemens!demon!jrv
From: jrv@demon.siemens.com (James R Vallino)
Newsgroups: comp.realtime
Subject: Real-time kernels for IBM PC environment
Message-ID: <10922@siemens.siemens.com>
Date: 23 Jun 89 14:11:13 GMT
Sender: news@siemens.siemens.com
Reply-To: jrv@demon.UUCP (James R Vallino)
Organization: Siemens Research and Technology Laboratories
Lines: 28

I am looking into using a real-time kernel on an embedded 286 system.  So far
I have discovered the following packages:

    ZIP
    C-Executive
    AMX
    VRTX
    QNX <- this provides more than I need

I would be interested in hearing from anyone who has had experience with
anyone of these packages.

A second somewhat related question.  I know that MS-DOS and the PC's ROM BIOS
are not re-entrant.  The packages I have looked at provide drivers to
replace the BIOS and make troublesome calls to DOS serial resources.  But
on the subject of the compiler run-time library I get somewhat conflicting
information.  Some companies restrict the compilers they support,
C-Executive requires Lattice or Whitesmith, because they say the others,
specifically Microsoft, can not be used.  Others, solve the problem by
having each task link in a private copy of the run-time library.  Rather
wasteful on memory and it may pose problems when I go to ROM or if a task is
multi-threaded.  What is other people's experience?

I'll summarize the information which I receive.
Jim Vallino	Siemens Corporate Research, Princeton, NJ
jrv@demon.siemens.com
princeton!siemens!demon!jrv
(609) 734-3331