Re: problems using int 25h

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Article #7950

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#7950

From: Auke Reitsma
Date: Sun, 31 Mar 1996 09:40

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doc@uiuc.edu (Jim Marco) wrote:

> I'm trying to write a program (in Turbo C 2.0) that scans the hard disk looking
> for certain file signatures.  I want this program to scan sector by sector, so
> I tried using int 25h via the Turbo C absread() command.  The problem is, the
> program works as intended on drive C: which is a 20 meg PC-DOS 5.0 partition,
> but not on drive D: which is a 300 meg partition (same OS).  The call keeps
> returning a "sector not found" error even for low sector values.  Can anyone
> shed any light on this?  Thanks in advance.

TC2 does not have support for disks larger than 30 MB.
I believe SNIPPETS has a replacement absread() ...
You should be able to find Snippets at ftp.brokersys.com /pub/snippets


Greetings from Delft, The Netherlands.

Auke Reitsma

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From: Auke.Reitsma@net.HCC.nl (Auke Reitsma)
Newsgroups: comp.os.msdos.programmer,comp.lang.c
Subject: Re: problems using int 25h
Date: Sun, 31 Mar 1996 09:40:44 GMT
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