Re: ProDOS question

[shack@onyx.southwind.net (Randy Shackelford)]

David E A Wilson (david@wraith.cs.uow.edu.au) wrote:
: jruschme@csc.com (John Ruschmeyer) writes:
: >Just out of curiousity, is the version 1.9 limit a function of the processor,
: >memory, or something in the architecture/ROMs. This, could I put a 65C02 in
: >a ][+ and run an even newer version?

: Version 2.x of ProDOS-8 assume that you have upper & lower case support (for
: the boot screen & error messages apart from the one you get if you do not have
: a 65c02) and a 65c02 and 64KB of main ram (and Applesoft & Autostart monitor).
: So you should have a LC chargen in the motherboard.

: Most 65c02 chips do not work in a ][+ according to Jim Sather in "Understanding
: the Apple //e". A Rockwell 65c02 worked for him. Alternatively a Zip chip would
: also do the trick (I seem to recall seeing the ][+ in my Zip chip manual).

Yep I put a 65C02 in my ][ as an experiment once, it made it quite unhappy.
I haven't tried pulling out the 65802 from my //e and trying it in the ][ but
I expect it would like it just fine and execute 65C02 code on top of that.
But no one makes 65802s any more do they?
-- 
Randy Shackelford                                 I was internet
shack@southwind.net                               when internet wasn't cool