Recently, Somebody Somewhere wrote these words
> At 18:29 14.08.2005 -0800, Jaap van Ganswijk wrote:
>
> >Don't confuse the real floppy controller chip and the software. The
> >chips still can read FM disks and by the way, MFM and FM (or DD and
> >SD) use the same medium, but use it in a smarter manner.
> >
> >(And building FM into an MFM controller costs almost nothing, so they
> >do it in the spirit of that every new PC has to be completely
> >downwards compatible with every old PC.
>
> Unfortunately, this doesn't seem to be true for the VIA chipset of my
> computer. I do have software that tries to read FM, but it was not
> successful with these disks. Worked fine for many MFM formats where
> the bitrate was standard, but not with these disks.
>
Having done something like this, I think you are going about it the
wrong way.
First of all, forget CP/M. It's not CP/M which ran out of 64K of ram and
had the same format for track 0 as every other track. Compatability was
the name of the game with CP/M.
Each track and sector is numbered. Each file begins at a sector start
and goes in a predictable fashion to it's comclusion, unless you have a
fragmented disk. In each disk format I have come across, they are
titled at start and run until an EOF.
How far can you get lifting the the files out with a hex editor? Or do
you need to get track 0 as well?
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB CHIPDIR-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
