Date:	Fri, 27 Sep 1996 15:06:48 +0200 (MET DST)
From:	Mark Habersack <grendel AT ananke DOT amu DOT edu DOT pl>
Reply-To:	grendel AT ananke DOT amu DOT edu DOT pl
To:	Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
cc:	djgpp-workers AT delorie DOT com
Subject:	Re: biosdisk()
In-Reply-To:	<Pine.SUN.3.91.960926170224.17125G-100000@is>
Message-ID:	<Pine.NEB.3.95.960927150424.24686H-100000@ananke.amu.edu.pl>
MIME-Version:	1.0

On Thu, 26 Sep 1996, Eli Zaretskii wrote:

>
>On Thu, 26 Sep 1996, Mark Habersack wrote:
>
>> Most modern disk drives do not use DMA at all so it is not a problem.
>
>Are you sure?  AFAIK, reading a floppy still involves DMA.  Or am I 
>hopelessly outdated?
Positive about HD and, yes, floppies still use DMA but it is VERY unlikely to
transfer 100 sectors from floppy at a time. For this might be a clause in
documentation that floppy transfers are limited to a specific amount of
sectors, or some code might be added to restrict the number of sectors to
transfer when drive number is < 0x80 (a better way only slower).

---------------------------------------------------------------------------
You can't brush me under the carpet, you can't hide me under the stairs,
The custodian of your private fears, your leading actor of yesteryear,
Who as you crawled out of the alleys of obscurity, sentenced to rejection
 in the morass of anonymity. You who I directed with a lover's will, you
 who I let hypnotise the lens. You who I let bathe in the spotlights glare.
You who wiped me from your memory like a greasepaint mask, just like a
 greasepaint mask...
-------------------- http://ananke.amu.edu.pl/~grendel -------------------

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