[sebhc] fstools and other things

Dave Dunfield dave04a at dunfield.com
Thu Jun 3 05:34:48 CDT 2004

>So the volume number is somewhat overloaded to indicate "disk change."
>It seems to confirm, too, that there is only one volume number
>for a floppy.  Does that also explain why track 0 has volume
>number of zero?

Track 0 has volume ID 0 so that it can always be read - the driver
will not complain about a volid mismatch if the ID on the disk is zero.
Otherwise, you would need to either have a special driver for reading
the header, or "try every id from 0-255" when you do encounter a new

>Do you know if CP/M drivers for the Heathkit hard-sectored controller
>do the same thing?

I have no idea - I hope so, as otherwise the emulator would not work
at all (it's "builds in" the sector headers).

dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools: www.dunfield.com
com             Vintage computing equipment collector.

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