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Re: Rom 1 or Woz IIgs
David Empson wrote:
>
> Mitchell Spector <spec@vax2.concordia.ca> wrote:
>
> > In article Stephen Banchich <banchich@earthlink.net> writes...
> >
> > >Does anyone know if the Electronic Arts game One on One(Byrd vs. Irving)
> > >will boot up on a Rom 1 or Woz edition Apple IIgs. I know it won't boot
> > >up on a Rom 3. Thanks, Steve.
> >
> > Nope, Electronic Arts' "One on One" happens to be one of the
> > few 8-bit titles that are incompatible with the IIgs. I made up
> > a list of incompatible IIgs software titles about a decade ago
> > (not complete, only things I happened to come across) and having
> > just dug it up, here is what I jotted down:
> >
> > - Logo
>
> Specifically the original Apple Logo. It can be patched to disable the
> copy protection, fixing the problem. (It fails to run because it uses
> an "illegal" 6502 instruction, which has undocumented but well-defined
> behaviour; this instrution does something completely different on later
> processors.)
>
> I think Apple Logo II works on the IIgs, but I barely used it.
>
> > - Karateka
>
> Only the cracked version fails on the IIgs. It is dependent on the
> exact code in the Disk ][ controller (I was able to get it working by
> incorporating a copy of the Disk ][ firmware into it). The original one
> apparently works fine.
>
> I can't comment on any of the others.
>
> --
> David Empson
> dempson@actrix.gen.nz
> Snail mail: P.O. Box 27-103, Wellington, New Zealand
Add a minor problem with Skyfox to your list. You can't fly through the
cloud on the Apple IIGS to switch from high to low altitude or vice
versa.
Also, Apple Pascal version 1.1 will not work on the IIGS unless you set
slot three to "your card". This disables 80 column display, and makes
the enviorment hard to handle, but it is the only way I could get it to
run on a IIGS.