From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,8681afec5ec123e6,start
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 1995-01-29 16:32:01 PST
Path: 
 nntp.gmd.de!newsserver.jvnc.net!yale.edu!noc.near.net!paperboy.wellfleet.com!news-feed-1.peachnet.edu!insosf1.infonet.net!solaris.cc.vt.edu!news.mathworks.com!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!zip.eecs.umich.edu!caen!msunews!harbinger.cc.monash.edu.au!aggedor.rmit.EDU.AU!goanna.cs.rmit.edu.au!macdale.cs.rmit.edu.au!dale
From: Dale Stanbrough <dale@rmit.edu.au>
Newsgroups: comp.lang.ada
Subject: Low level features in GNAT on DOS?
Date: 30 Jan 1995 00:32:01 GMT
Organization: RMIT, Melbourne, Australia
Distribution: world
Message-ID: <3ghc21$l71@goanna.cs.rmit.edu.au>
NNTP-Posting-Host: macdale.cs.rmit.edu.au
X-UserAgent: Version 1.1.3
X-XXMessage-ID: <AB527FCB4E01CB21@macdale.cs.rmit.edu.au>
X-XXDate: Mon, 30 Jan 95 11:36:43 GMT
Date: 1995-01-30T00:32:01+00:00
List-Id: <comp.lang.ada>

Hi,

Does GNAT on DOS support low level features such as

	- for object'address use <some value> ?

	- the ability to call the DOS interupt functions, e.g. Interupt 16#16#,
function 0,
	  which reads the raw scan code from the keyboard.

	- the 80x86 IN and OUT instructions?

...and how would I go about using them?

Specifically I would like to convert some old code that writes directly
to video
memory (80x25 mode), and be able to read characters raw.


Dale