24-Jan-85 9:29:45,1081;000000000001 Return-Path: Received: from SIMTEL20.ARPA by DEC-MARLBORO.ARPA with TCP; Thu 24 Jan 85 09:29:37-EST Date: Wednesday, 23 January 1985 07:56-MST Message-ID: Sender: SMERESKI.WBST@XEROX From: SMERESKI.WBST@XEROX To: Info-CPM@AMSAA, Info-Micro@BRL-VGR, Pascal/Turbo^.X@XEROX Subjuct: Using MSDOS Debug with Turbo Pascal ReSent-From: KPETERSEN@SIMTEL20 ReSent-To: EIBEN at Dec-Marlboro ReSent-Date: Thu 24 Jan 1985 07:31-MST 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