Flex Disc options for the HP 9825

tony duell ard at p850ug1.demon.co.uk
Tue Jul 19 12:25:07 CDT 2016

> There was only ever support for 8" diskette drives, and to support 9895
> you need the second version of the Diskette ROM which appears to be very
> rare.  I t sure would be nice if someone who has one of these ROMs would
> dump the contents or loan it to someone who could dump it, so that we
> might be able to clone the ROM module.

It's not totally trivial. The later version module is so large that part of the 
ROM is bank-switched. So you would have to make sure you copied the 
entire ROM and the copied the bank-switching circuitry in the cloned


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