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Mail Archives: djgpp-workers/1996/09/26/23:00:46

Date: Thu, 26 Sep 1996 22:59:36 -0400
From: dj (DJ Delorie)
Message-Id: <199609270259.WAA08507@delorie.com>
To: grendel AT ananke DOT amu DOT edu DOT pl
CC: djgpp-workers AT delorie DOT com
In-reply-to: <Pine.NEB.3.95.960926144902.22355C-100000@ananke.amu.edu.pl> (message from Mark Habersack on Thu, 26 Sep 1996 14:58:30 +0200 (MET DST))
Subject: Re: biosdisk()

> This patch allows biosdisk() to read more that 18 sectors at once. I see no
> reason to put such a restriction. There might be only two things that may
> cause this modified version to go into trouble:
>   (1) old BIOSes do not support cross-tracks reads. However, AFAIK, this is
>       true for machines with BIOS (AMI) from 1991 and older.
>   (2) DMA transfer buffer cannot exceed 64 KB. Most modern disk drives do not
>       use DMA at all so it is not a problem. I have successfully read 200
>       sectors at once on following machines:

I think this one will wait until after 2.01.  I know *my* pc can't
handle more than 18 floppy sectors at a time.

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