ProDOS does not like me !!!

[etxmsl@ericsson.se (Martin Landhage)]

Is there any one that can solve this promlem ?

Anybody that has been digging into the Apple II+ has noticed that
there are strapping on the Language Card that allowes the user
to use a 2716 eprom instead of an Apple rom.

First i burnt a 2716 with the contents of the addresses $F800-$FFFF in the
II+, chaged the strappings on the Language Card and replaced the rom
with my eprom.

RESULT: Works fine in every situation !

Then I tried to customize the coputer by changing the text "APPLE ][" to
"Landhage". This time I first read the contents of the F8 rom in to a
file and did the a actual change on my Apple IIGS since the change is
easier to do in the IIGS monitor before burining the the new eprom.
Eager to test it.

RESULT: The computer displays "Landhage" instead on "APPLE ][" at 
startup. Wonderful !

BUT, there is a problem. The computer "freezes" after displaying
the ProDOS version information.

ProDOS obviously knows that I have changed the string at address
$FB09 in the F8 rom and if not "APPLE ][" then fuck you !!

How to patch ProDOS 8 version 1.9 (the last one that works on the II+)
so it accepts my rom change ?

By the way, I'm used to work with BlockWarden.

Best regards

Martin Landhage