[TUHS] IP in v8-v10
scj at yaccman.com
Fri Mar 31 05:29:27 AEST 2017
Can't help much, but I did write fish and ching.
ching took a string from the input, hashed it, converted into
hexagrams, and quoted a couple of lines of i Ching text . The text
was copied from a book, presumably copyrighted, although considering
how long ago this all was maybe the copyright has expired now...
I wrote fish for my young son -- it played the kids game. Without
graphics it wasn't very compelling. But there is an interesting
story about it. A couple of weeks after the first version, I
realized that if my opponent (e.g., the computer) asked me for, e.g. a
six, and later I drew a six, I should ask the opponent for sixes.
With this small change the game defeated all kids and most adults, and
the game was even less interesting as a result. I ended up putting
in an option to dumb the game back to its original level.
A couple of years later, at a Usenix meeting, I was publicly called
out for writing a game "that cheated". Unless somebody hacked my
code somewhere along the way, the game simply played excellent
----- Original Message -----
From: "Doug McIlroy" <doug at cs.dartmouth.edu>
To:<tuhs at minnie.tuhs.org>
Sent:Wed, 29 Mar 2017 22:36:02 -0400
Subject:[TUHS] IP in v8-v10
> > Can you characterize what the 3rd-party material might be?
> Me personally, no. But there are others on the list who can help do
> Hopefully they will chime in!
Here's a list, gathered from the manuals, of stuff that Bell Labs
may not have the right to redistribute, with some (uncertain)
attributions of origin. I did not check to see which of them appear
the TUHS archives; I doubt that /usr/src fully covered /bin and
This list is at best a first draft. Please weigh in with corrections.
Kernel internet code. BSD
lisp, liszt, lxref MIT
icont, iconc Arizona
more BSD (From the manpage: "More, a paginator that lives up to its
too many features to describe." Its prodigality has been eclipsed by
pascal, pc BSD
readnews, checknews, postnews Duke
vi, ex, edit BSD
Commands I'm not sure about, could be from Bell Labs
adventure, zork, aarvark, rogue
trek, ogre, sol, warp, sail
Games I'm not sure about
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