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Re: What are the chances of a Replica II project?



On Thu, 20 Jul 2006, Simon D. Williams wrote:

On Thu, 20 Jul 2006, Lyrical Nanoha wrote:

That's what I'd like to do, honestly.  I never uploaded my SDDapple
sources anywhere except my old computer so I don't know if they ever got
mirrored, I still have them, but not on my Web site anymore :/ but some
versions do have a partial implementation of the ROM in mostly C code.  (A
preliminary version also had a partial implementation of ProDOS that I
never finished.)  This should be clean-room enough to start from as
documentation - there's no Apple code, just my reimplementation of it and
some comments.

-uso.

What about using the ROM from one of the legal clones? I'm sure most of
those companies are long gone, or would no longer have any legal
interest... or would even notice.

Just a thought.

It would be much more difficult. There's only really 2 options that I know of, the Laser (whose ROM is owned by Symantec) and SimSystem IIe.

Now the latter poses an interesting question. It's a shareware emulator with a Laser-like ROM. The ROM is part of the package and would appear to thusly be freely redistributable. The question is reverse-engineering it, so that we know how it banks, and how it expects to communicate with the hardware. It's similar but not identical to the //c ROM; it can't be banked the same way, though.

So, might this be the way to go?

(By the way, the BASIC I distributed with SDDapple was this one.)

-uso.