Path: utzoo!attcan!uunet!bonnie.concordia.ca!ccu.umanitoba.ca!eeserv.ee.umanitoba.ca!yackob
From: yackob@eeserv.ee.umanitoba.ca (Zaifu Kerry Yackoboski)
Newsgroups: comp.lang.pascal
Subject: Re: Turbo Pascal typecasting and the Mem array.
Summary: Ignore the first article, please.
Keywords: Turbo Pascal typecasting integer word
Message-ID: <1991Feb27.160413.29411@ccu.umanitoba.ca>
Date: 27 Feb 91 16:04:13 GMT
References: <1991Feb27.033001.2520@ccu.umanitoba.ca>
Sender: news@ccu.umanitoba.ca
Organization: Dept. Electrical Engineering, U of Manitoba
Lines: 34


	After solving my problem I tried to cancel the article
explaining it, but "rn" told me I couldn't cancel someone else's
article.  Sorry about that, but since I have cleared up my problem,
here is the solution.


In article <1991Feb27.033001.2520@ccu.umanitoba.ca> I wrote :
>	I'm having trouble casting an integer type variable to
>a word type.  Basically, I just don't understand what's going on
>in the TP Reference Guide (Version 5.0, pages 42, 64, and 208).
>Hopefully some net.god can clear a few things up for me.
>
>	I'm reading in integers (i.e., signed 16 bit) from a file
>and trying to store them in memory using the Mem[segment:offset]
>array.  My dilemma is that Mem expects a byte (unsigned 8 bit),
>so I tried to use the MemW[..] array, except this expects a word
>(i.e., unsigned 16 bit).
>Kerry Yackoboski 	<yackob@eeserv.ee.umanitoba.ca>

	The solution is to do a type cast when I USE the value in the
MemW array.  e.g., if temp_value is an integer,

	temp_value := integer (MemW[seg:offset]);

works.  I also have to increment the offset twice to advance to the next
data value, as I suspected.

	sorry if I've wasted bandwidth on a well-known concept, Kerry

--
Kerry Yackoboski 	<yackob@eeserv.ee.umanitoba.ca>
The Scanning Tunneling Microscopy Laboratory in the Cellar
U of Manitoba, Winnipeg, Canada