compaq portable plus problems

[Marvin Johnston]

When I am using debug to format a HD on an unknown controller, I'll do an
unassemble at C800:5 and C800:6. The correct address will have a jmp
instruction.

Besides the HD formatting program on the utilities disk, going *way* back, I
think Western Digital put out a formatting program WDFMT (?) that would allow
the formatting of MFM HDs. I think there also might have been some PD/shareware
programs to do the same thing. Assuming the Simtel archives are still around, I
would expect to be able to find these programs there.


> From: Roger Pugh <rogpugh at mac.com>
> 
> does anyone know the correct incantation to low level format an MFM 
> drive, a rodime 351, driven by a Compaq controller board.
> 
> I,ve tried with debug G=C800:5 to no avail.  there is no format program 
> there!.