Gene Heskett wrote:
On Monday 05 February 2007 18:30, Jesper Juhl wrote:
And this is almost OT for this, but I'd like to interject here that in
recent history, it has been very very difficult to properly access LSN0
of a floppy. Some formats, such as those laid down by a WD-1773 floppy
controller, do indeed use a sector marking of '0' (zero) on all tracks.
I thought the sector numbers of floppy discs were software programmable
(at formatting time.) I believe different OSes used different offsets,
with 1, 2, 3... being the way IBM did it in the PC, but all kinds of
variants were used, including things like 0xa0, 0xa1, ... for no
apparent reason.
-hpa
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