Re: Meridian and 32-bit ext mode

[agate!howland.reston.ans.net!math.ohio-state.edu!caen!uvaarpa!vger.nsu.ed u!g_harrison@ucbvax.Berkeley.EDU (George C. Harrison, Norfolk State University]

In article <4100.2c706c25@vger.nsu.edu>, g_harrison@vger.nsu.edu (George C. Har
rison, Norfolk State University) writes:
>      We've just finished one of those ARPA Software Engineering and Ada grant
s. 
> Included was a student project - just completed.  We ran into some strange
> problems.  If anyone has an answer, I'd like to here it.
> 
> The program in the project was written in Meridian (1,4,1) 386E Ada. 
> Originally we used 16-bit extended mode.  The platforms were 486 50 mz and 48
6
> 25 mz SX.  
> 
> Structurally, the program uses 6 TEXT video pages (written to pages 1 thru 6)
> and page 0 for ordinary displays, etc.  Each TEXT video page is 12000 bytes.
> 
> There are six packages for a total of about 2600 LOC.  There are no large dat
a
> structures.  As we added minor functionality, we noticed some strange 
> behavior: 
>   Output from a small linked list was totally corrupted.  
>   The printer _automatically_ started printing junk.  
>   Text from other pages were being printed to other pages when the pages 
>     were functionally isolated.  
>   Garbage was being printed to the dos prompt.  etc.  
> 

.. lots of text...
> 
> George
> 
> +----------------------------------------------------------------------------
+
> | George C. Harrison            | PHONE : (804) 683-8654  | "Ada Spoken Here"
|
> | Professor of Computer Science | FAX   : (804) 683-9229  +------------------
+
> | Norfolk State University      | g_harrison@vger.nsu.edu |                  
|
> | 2401 Corprew Avenue           +-------------------------+                  
|
> | Norfolk VA 23504              | loop exit when RE_TIRED; end loop;         
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> 
.. Sorry for the poor spelling above, but it's 5:30 A.M.  ... and the fall
semester starts TODAY!!!  :-)

George