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Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ihlpe!psfales
From: psfales@ihlpe.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: program always uses drive A:
Message-ID: <2103@ihlpe.ATT.COM>
Date: Wed, 30-Sep-87 11:19:42 EDT
Article-I.D.: ihlpe.2103
Posted: Wed Sep 30 11:19:42 1987
Date-Received: Fri, 2-Oct-87 03:13:20 EDT
References: <10495@beta.UUCP> <2093@ihlpe.ATT.COM> <1188@bsu-cs.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 30


 In article <1188@bsu-cs.UUCP>, jtn3@bsu-cs.UUCP (Jim Nelson) writes:
 > In article <2093@ihlpe.ATT.COM>, psfales@ihlpe.ATT.COM (Pete Fales) writes:
 > > In article <10495@beta.UUCP>, dd@beta.UUCP (Dan Davison) writes:
 > > > A problem: program always reads from drive A:
 > > > 
 > > > I have an application program, available only as a .EXE file, which
 >                                                         ^^^this will cause
 > a major problem when using DEBUG since DEBUG uses the header block in .EXE
 > files to figure out where to put the file in memory.

When I wrote this, I was assuming that anyone willing to use DEBUG to tackle
a project like this would know how to use debug on an EXE file.  (i.e. Change
the name to something not ending in .EXE)

 > > I would go in with DEBUG and look for any occurrences of the string "A:"
 >                                         ^^^*all* of them?!?!?!?!  
 > It may even
 > be using B: on a single floppy system since B: and A: are the same physical
 > drive on a single floppy system.

Yes, all of them.  You might get lucky.  As I mentioned in my original
posting, this method comes with no guarantees.   I also said that
if searching for strings doesn't work, the alternative is the much bigger
job of tracing the program execution.
-- 
Peter Fales		UUCP:	...ihnp4!ihlpe!psfales
			work:	(312) 979-7784
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