|Re: Transfering HP-85 programs to HP-9915 EPROMs|
Message #4 Posted by Olivier De Smet on 8 Feb 2006, 1:00 p.m.,
in response to message #3 by John
I hope to finish an alpha version of an HP85 emulator very soon
(based on my HP87 emulator).
The tape and printer are not working actually and when booting
the emulator say 'ERROR 23' :)
But an HP-IB interface and floppy-disc are working :)
(electronic disk don't work so it's not an HP85B emulator)
Just for completness, with the service rom, CPU and DISPLAY are ok,
only RAM 1 and 6 are OK (don't know why RAM 0,2,3,4,5,7,8 are bad..)
and of course, tape, printer, and timers don't pass the tests.
BTW did someone have an image of the Service rom for HP86/87 ?
I have some manuals about servicing the HP85 and 86, but the
diagnosis about the differents errors of the service rom are not
enough to implement the missing functionalities.
Is there somewhere a commented listing of thoses roms ?