From:	"Matthias Paul" <PAUL-MA AT reze-1 DOT rz DOT rwth-aachen DOT de>
Organization:	Rechenzentrum RWTH Aachen
To:	opendos AT delorie DOT com
Date:	Wed, 22 Nov 2000 18:34:58 +0100
Subject:	Re: Optimizing CONFIG.SYS...
X-mailer:	Pegasus Mail v3.22
Message-ID:	<81B15CE172D@reze-1.rz.rwth-aachen.de>
Reply-To:	opendos AT delorie DOT com

On Wed, 22 Nov 2000 Florian Xaver wrote:

> >  DOS=HIGH,UMB
> 
> Mh...I thought that I had read in your German MPDOSTIPs that there 
> are more than 2 arguments.

IBMBIO.COM looks for HIGH | LOW, UMB | NOUMB when scanning the 
DOS= directive. 
HIDOS=ON is similar to DOS=HIGH..., HIDOS=OFF is similar to DOS=LOW. 

DR-OpenDOS 7.02+ additionally scans for AUTO and NOAUTO arguments
but does not make much use of it for now, so there's no backdrack 
when omitted. Chicago's ENHANCED and SINGLE arguments are accepted, 
but ignored because they make no use under DR-DOS. 
(BTW. If you have look at the end of the IBMBIO.COM file in a binary 
viewer, you will see a list of valid directives and arguments. But
please mind, that these strings are overlapping each other, that is 
they are merged together to save space, so you will find "NOUMB", but 
not "UMB", you can find "HIDEVICE", but not "DEVICE", etc. You will
need some phantasy to figure out all the possible commands... ;-) )

 Matthias

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Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany
eMail: <Matthias DOT Paul AT post DOT rwth-aachen DOT de>
Web  : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html
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