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From: rkrueger@opal.cs.tu-berlin.de (Robert 'red sea' Krueger)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: 1024-byte floppy sectors?
Message-ID: <3792@malung.cs.tu-berlin.de>
Date: 17 Jun 91 14:43:51 GMT
References: <3251@krafla.rhi.hi.is>
Organization: Technical University of Berlin, Germany
Lines: 31

In article <3251@krafla.rhi.hi.is> adamd@rhi.hi.is (Adam David) writes:
> [ ... ]
>TOS uses a BPB to handle various media specifications. The floppy driver /
>filing system must use 1024-byte cluster buffers for the standard format.
>Why should it not be possible with standard TOS to use 1024-byte clusters
>of one sector each? What modifications do I need to make to TOS in order to
>use the larger sectors with it?
>
>Any thoughts / suggestions welcome.
>
The problem is as follows: 
A sector-size of 512 bytes is *hardcoded* in (older) TOS versions !
TOS can recognize other sector-sizes than 512, and reports them right
in the BPB, but internally, the floppy routines, which access the DMA
controller, expect 512 byte per sector.
So, the only solution is another TOS-Patch ...



Hope that helps !

Greetings,

   Robert


-- 
Robert Krueger  TU-Berlin  FB20 (Informatik)   
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