15 Jan
2014
15 Jan
'14
10:37 p.m.
On Jan 15, 2014 7:11 PM, "David Gesswein" <djg at pdp8online.com> wrote:
Also does anyone know the data format for the stuff the RQDX3 puts on the
first
few tracks? I think its the sparing information and
other disk
organization
information. If it wasn't too hard I was going to
see if I can convert my
extracted data to an image usable under SIMH.
The low level format is strange. The first 3 sectors on track 0 are
in one format then 3 track worth of sectors with a different CRC code
which
is where I suspect the controller is storing its
stuff. Also some funny
stuff at the end of the disk.
Does this apply to the RQDX3 disk format?
Disk format for secondary storage system
US 4434487 A
https://www.google.com/patents/US4434487