Re: 16 bit programs for Apple IIc?

[Nick <nmarx@ix.netcom.com>]

One of the big differences between 16bit software and 8 bit software on the
apples are the graphics modes they use.  I don't believe there is anything you
could do to a IIc+ which would allow it to display GS level graphics, which
most 16 bit programs use.

Rubywand wrote:

> Obsbedia2 writes ...
> >
> > I've been told that one of the many pluses of my //c+ is that it can run
> > 16bit programs, just like it's IIgs sibling. My question is "which
> > ones?"
> >
> > I know that it won't work with programs that require toolbox calls, but
> > I'd like to try a few and see how it handles 16 bit magic.
>  ....
>
>      Some Apple II users have experimented with swapping in a 65C802 for
> the 65C02 found on newer 8-bit Apple II's. (The swap does not seem work
> as well for Apples using the older 6502.)  The 65C802 is very similar to
> the 65C816 but it is limited to 16 address lines.
>
>      If your IIc+'s microprossor is socketed, you could try swapping in
> a 65C802 rated for at least 4MHz and experimenting with 16-bit
> instructions and writing your own programs.
>
>      There was software developed around 1985 for the one or two 65C816
> Slot boards which came out before the IIgs; some of this software might
> run on a IIc+ using a 65C802. Some early 16-bit assemblers might run
> okay, too.  Otherwise, nearly all 16-bit software is going to assume
> that it is running on a IIgs and not run correctly on other Apple II's.
>
> Rubywand