[Coco] Infocom text adventures

[Luis Antoniosi (CoCoDemus)]

We have all this:

http://www.colorcomputerarchive.com/coco/Disks/Games/Infocom%20Adventures/

But all copies of hitchhiker I tested fails in INTERNAL ERROR at some point.



On Tue, Apr 29, 2014 at 10:44 AM, L. Curtis Boyle
<curtisboyle at sasktel.net>wrote:

> We had Zork's 1-3, Hitchhikers Guide, Planetfall, and Sea Stalker for
> sure. I have had/still have all of these at one time or another. I think we
> had Witness too, didn't we?
>
> L. Curtis Boyle
> curtisboyle at sasktel.net
>
>
>
> On Apr 29, 2014, at 8:28 AM, Allen Huffman <alsplace at pobox.com> wrote:
>
> >> On Apr 28, 2014, at 1:24 PM, Nick Marentes <nickma2 at optusnet.com.au>
> wrote:
> >>
> >> Cool! Has anyone else got this patch?
> >
> > I hope to dig out all my CoCo stuff at some point this year, since I
> have to go through everything and sell off extra stuff and repack so I can
> move to a cheaper place.
> >
> > I wrote Terry and he described how he did it, more or less. See my note
> after this quote:
> >
> >> Terry wrote:
> >> I just started at the executable address and started disassembling.
>  What I found was a program that ran a proprietary tokenized language.
>  Each infocom game runs on the same interpreter.  Then I started
> disassembling each command and all the common subroutines until I found the
> one that output to the screen and just redirected it.
> >
> >
> > Note that, at this time, no one outside of Infocom seemed to know how
> Infocom games worked. As soon as Terry found out it was running some kind
> of language (today we know it was called the Z-machine), he searched BBSes
> all over the place trying to find documentation on it but nothing came up.
> It's likely others figured this out, but it wasn't easy to find information
> back then. During the early 90s, I think he found someone who had managed
> to cross port some other Infocom games to a Texas Instruments computer.
> Actually, I seem to recall that someone did the same thing for the CoCo and
> brought over many other adventures that we never had officially.
> >
> > I seem to recall we had Zork, Hitchhiker's Guide, and Sea Stalker, at
> least. Maybe Planetfall too?
> >
> > Today, there are open source Infocom interpreters (like Frotz) and I
> wonder if they would be portable to the CoCo.
> >
> > I have the Infocom collection on my iPad, and a former CoCo guy worked
> on it (Jeff Vavasour, of the famous original CoCo emulator).
> >
> >               -- A
> >
> >
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> >
>
>
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