[Simh] Trek FORTRAN games (Was: Crowther's Adventure game)

[Dan Gahlinger]

yeah it's completely totally different.
the original code was from PDP, but written by Donald Ecclestone at UWO (Western) in London Ontario
I started helping him out with the code in 1978 just when he ported it over to the vax.

There's some time-restricting code in it to prevent students from running it during class hours,
But normally it's left disabled.

There's some internal debug stuff still left in as well.

Donald wrote a TREK5 which was pretty classic trek game, not multi-player or anything, but I don't know if he created it or based it on common code elements available at the time.

Dan.
________________________________
From: Simh <simh-bounces at trailing-edge.com> on behalf of Alan Perry <aperry at snowmoose.com>
Sent: February 3, 2018 6:03 PM
To: simh at trailing-edge.com
Subject: [Simh] Trek FORTRAN games (Was: Crowther's Adventure game)

In this different from the one credited to be by David Matusek and Paul Reynolds? I have FORTRAN source for what I think is the Trek game that we ran on TOPS-20 when I was in college in the mid-80s. I have been trying off and on (mostly off recently) to get it working under SIMH, but haven't touched it in so long that I can't remember where I was at on it.

It was on a 9-track tape of stuff that I collected when I graduated and LCM was kind enough to read for me a few years ago.

alan

On 2/3/18 2:00 PM, Larry Baker wrote:
Dan,

The link to your Source Forge page you posted does not work for me.  I found TREK7 it at https://sourceforge.net/projects/trek7/.

I tried to find the sources you started with.  I found a ZIP file called trk7fsrc.zip<https://sourceforge.net/projects/trek7/files/trek7/status/trk7fsrc.zip/download>.  When I compiled the first file, TREKA.FOR, I can see typos and lines extending past column 72.  This could not be the original source code that worked at one time.  Was this scanned?  Has this been altered from a known working version, other than the scanning errors?  Like, the lines that extend past column 72?  The code clearly expects column 72 to wrap to column 7 of a continuation line, which is how Fortran fixed-format source works.

Ancient Fortran should not be that hard to convert, especially if you know the original platform.  I saw LIB$ calls, which leads me to believe this was maybe VAX Fortran?  I see the use of FORMAT specifiers without lengths, like F, not F7.2.  It would be nice to know the precise meaning of that non-standard Fortran.  But, very new Fortran sill also accept FORMAT specifiers without lengths now.  And, there is non-advancing support for Fortran I/O now.  Fortran INTRINSICS should be straightforward.  The library calls will be harder.

Want help?  What platform do you want to run the code on?

Larry Baker
US Geological Survey
650-329-5608
baker at usgs.gov<mailto:baker at usgs.gov>




On Feb 3, 2018, at 11:13 AM, simh-request at trailing-edge.com<mailto:simh-request at trailing-edge.com> wrote:

Message: 2
Date: Sat, 3 Feb 2018 17:51:47 +0000
From: Dan Gahlinger <dgahling at hotmail.com<mailto:dgahling at hotmail.com>>
To: Quentin North <quentin at quentin.org.uk<mailto:quentin at quentin.org.uk>>, Bob Nelson
<rmkrider at gmail.com<mailto:rmkrider at gmail.com>>
Cc: "simh at trailing-edge.com<mailto:simh at trailing-edge.com>" <simh at trailing-edge.com<mailto:simh at trailing-edge.com>>
Subject: Re: [Simh] Crowther's Adventure game
Message-ID:
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I have an original printout of Adventure from the mid 70's, taken from a Vax though,
It's not a version I've found on the archives, the version ID on mine is different.
I've been meaning to scan it and post it.

Ancient fortran is very hard to convert, as I found out trying to convert trek7 (https://trek7.sourceforge.net<https://trek7.sourceforge.net/>)

And I spent 38 years or so converting "the new castle" from Vax to Linux/Dos/Mac.

Dan.




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