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From: SMERESKI.WBST@XEROX.ARPA
Newsgroups: net.micro.cpm
Subject: Using MSDOS Debug with Turbo Pascal
Message-ID: <7652@brl-tgr.ARPA>
Date: Wed, 23-Jan-85 10:13:48 EST
Article-I.D.: brl-tgr.7652
Posted: Wed Jan 23 10:13:48 1985
Date-Received: Sun, 27-Jan-85 07:11:00 EST
Sender: news@brl-tgr.ARPA
Organization: Ballistic Research Lab
Lines: 23

It is possible to use Debug break points on a turbo pascal.  You first have 
to NOP an instruction.  I got this information from Borland a month ago
and have used it successfully several times.  There is one side effect.
You lose the ^C abort function once the patch is installed.

The patch is as follows:

In the CSEG of your program at
 
   Loc        Current       New
  0BE2          E8           90
  0BE3          DC           90
  0BE4          FD           90


This patch is replacing a   'Call Int21' with 'NOPs'


I hope this helps.



/Dave