From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.5-pre1 Date: 17 Aug 93 09:33:56 GMT From: 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 ) Subject: Re: Meridian and 32-bit ext mode Message-ID: <4101.2c706dc4@vger.nsu.edu> List-Id: 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; | > +-------------------------------+-------------------------------------------- + > .. Sorry for the poor spelling above, but it's 5:30 A.M. ... and the fall semester starts TODAY!!! :-) George