I forgot to mention that I had a friend help me out, and he got SYSIII
running on SIMH.......!
I don't know if there would be any interest in this... I don't have a good
layout of 'steps' as it was so... chained from 32v, and from within itself
as it can't boot from the tape..
But I can supply a working disk image to anyone that wants it... or should I
send it to Warren 1st, and he can send it to all the ancient/sysv licenses?
sorry if i'm not all that coherent.
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Several people have noticed that the web archive for the TUHS mailing list
had stopped at June 2009, which was when I migrated over to another box.
Looks like I had a perms problem, which should be now fixed, but this e-mail
is just to test that it is indeed fixed. Please ignore, and/or browse the
old mail at http://minnie.tuhs.org/pipermail/tuhs/ :-)
Cheers,
Warren
Is anything likely to happen to the status of various historical
Unices? Is Novell likely to keep the Ancient Unix license intact or
are they likely to lock things back up? Is there any chance that
SysIII and early SysV might finally get opened up? Does anybody have
any ideas here?
Mike
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I was idly going through the 1999 Swartz memo
(http://www.groklaw.net/pdf/Swartz.pdf) wherein the source code of
RedHat 5.2 and UnixWare are compared for similarities. Most of those
are either bogus (just some #includes) or BSD-derived code. There is
one file which is concerning: drand48.c. The RedHat 5.2 file is very
similar to the UnixWare file, including headers and #ifdef's e.g.
/* @(#)drand48.c 2.2 */
/*LINTLIBRARY*/
/*
* drand48, etc. pseudo-random number generator
* This implementation assumes unsigned short integers of at least
* 16 bits, long integers of at least 32 bits, and ignores
* overflows on adding or multiplying two unsigned integers.
* Two's-complement representation is assumed in a few places.
* Some extra masking is done if unsigneds are exactly 16 bits
* or longs are exactly 32 bits, but so what?
* An assembly-language implementation would run significantly faster.
*/
#include <stdlib.h>
#ifndef HAVEFP
#define HAVEFP 1
#endif
As far as I can determine, drand48() arrived in SysVR1 and is defined
in the first SVID. It doesn't appear in SysIII, nor in the early BSDs.
Can anybody shed some light on drand48()? Could it have been written
elsewhere and made available e.g on a Usenix tape or comp.sources.*,
and included into SysV, or is SysV the origin of the code?
I'm sure the algorithm comes from elsewhere, e.g. Knuth, but the
strong code similarity is a worry.
Thanks,
Warren
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