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From: SMERESKI.WBST@XEROX
Newsgroups: net.micro
Subject: Using MSDOS Debug with Turbo Pascal
Message-ID: <7693@brl-tgr.ARPA>
Date: Sat, 26-Jan-85 00:11:43 EST
Article-I.D.: brl-tgr.7693
Posted: Sat Jan 26 00:11:43 1985
Date-Received: Tue, 29-Jan-85 06:00:38 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