Hamurabi Focal source
ethan.dicks at gmail.com
Tue Mar 30 16:39:31 CDT 2010
On 3/30/10, Vincent Slyngstad <vrs at msn.com> wrote:
> From: "Ethan Dicks" Monday, March 29, 2010 1:26 PM
>> I have it on an original DECUS papertape, IIRC
>> (http://archive.netbsd.se/?ml=cctalk&a=2004-01&m=144185 - yep... there
>> I am talking about it ;-)
> Then we just have to twist your arm to upload it somewhere :-).
I might just have to do that. I have several ways to read papertapes
directly into pre-Omnibus PDP-8s, but I'd have to think a bit on the
best way to attach something to a "modern machine" to read tapes for
I have an RS-232<->20mA adapter lying around, but no docs and I
haven't yet reverse-engineered the schematic to ensure it's using the
alternate EIA pins for current loop. That's one option. I'm sure I
have an IBM 5150 or 5160 with an original serial card (that could
support current loop), but it'd be at the bottom of a stack in
storage. Building a current loop adapter from scratch might be the
fastest path. I have an ASR33 and a DEC PRS/04 reader (both current
loop, one 110 bps, one faster, IIRC).
>> You might be after DECUS tape FOCAL8-5 - "The Sumer Game"
> You seem to imply that this *isn't* what you have the tape for?
I'm implying that I don't know for certain that the tape I have is
that exact tape. I have *a* tape. I haven't looked at it this year,
so I'm allowing for fuzzy memory. I might have a tape containing a
later version of the program, if there happened to ever be one.
> Has anyone written Doug and asked him? (He's not hard to find online.)
I have not. I just did a few minutes digging (beyond a one-line
drive-by googling) to help the original questor.
Doug would be an authoritative source, but in case he doesn't have a
40+-year-old program lying around in easy-to-access machine readable
form, one could pursue the DECUS route as well.
> Now that would be something. I've never found any trace of most of
> the DECUS stuff for the PDP-8, except the text blurbs like the one
> quoted above.
I don't have all that much of the older stuff myself - perhaps a
handful of papertapes (less than 10) and perhaps a floppy or two. My
only exposure to the vast majority of those programs is those same
blurbs that are already well circulated.
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