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From: lenz@bl.physik.tu-muenchen.de (Udo Lenz)
Newsgroups: comp.windows.ms.programmer
Subject: Port I/O under Windows 3 in Prot mode
Keywords: Port I/O, Windows
Message-ID: <lenz.671205213@charly>
Date: 9 Apr 91 13:53:33 GMT
Sender: news@Informatik.TU-Muenchen.DE
Organization: Technische Universitaet Muenchen, Germany
Lines: 27



	Hi Netlanders,

I want to write an application in enhanced mode using USE32 data
segments to get a fast access to the 24 Mb RAM I got installed with my
386.

  i) What software do I need? I have MSC 5.0 and  MASM 5.0. Are these
versions recent enough? I am aware, that I also need the SDK for
Windows. I don't have it yet and I only want to buy it if the answer
to question ii) is yes.

  ii) In the planned application I want to do Port I/O (megabytes) in an
assembly routine. Is it possible to set the I/O privileges high enough in the
application or before starting it?  I/O via calls to the SDK library
(if they exist) will probably not be fast enough.

Any help or references are very much appreciated.


-------
Udo Lenz
Sektion Physik der Universitaet Muenchen
Am Coulombwall 1
D-8046 Garching            Internet: lenz@charly.bl.physik.tu-muenchen.de
Germany                    Bitnet:   lenz@dgablg5p