(Reply excluding photos)
On Sun, 30 Dec 2018, Brett Bump wrote:
Sorry Bob, that kit is a modified version which includes Paul's FORTH run
time system as well as my own Custom run time systems. If you follow the
README.TXT file you can see the changes from a default V6C install. It's
all there (but also a little extra). My run time systems were originally
designed on a V8 system so a few features are missing in V6, but most of
it is all the same (also the source tape is mounted so roll your own).
Log into the 1,5 account with: SYSUSR
Then (because there is no such animal as switching a default rts) type:
CCL SW CUSTOM
$` README (I think you will find there is a little more here to see)
Brett
PS. Most likely mailman will trim the photos I included but Bob sill see
them. Enjoy and Happy New Year.
On Sat, 29 Dec 2018, Robert G. Schaffrath wrote:
Or you could grab the pre-genned V6C kit from:
http://www.rsts.org/autoindex.php?dir=distros/RSTS_kits/&file=RSTS_V6C_Kit.zip
I tried booting that, and it does boot, but the startup does not run. No
system initialization is performed and I login as job 1 with no CCL's
defined. The version at https://skn.noip.me/pdp11/rk2.dsk does boot and has
all commands installed.
Looking at both environments there are two things I noticed as different
from the V06C-03 I was using in high school back in 1978. On our system we
had control-T available that was enabled and disabled along with control-R.
What was interesting was that it would show the job priority for
non-privileged users. Priority display was removed in 7.0 for
non-privileged users. We hackers discovered that on a slow running system,
one could repeatedly hit control-C during login and abort the change from
logged out priority +0 to priority -8 by LOGIN (control-T let us see that
we were still at +0). That gave our teacher and the county data center
where we rented access to the PDP-11/70 system fits. Eventually they wrote
a "guard" program that would drop the priority of any non-privileged job
found to be greater -8. The problem with that check was that some jobs
legitimately got bumped to -4 priority temporarily due to the
set-special-run-priority syscall. The "guard" did not recognize that and
pushed jobs back down to -8.
The other difference I noticed is that SYSTAT in privileged mode does not
show the runburst. In privileged mode, SYSTAT had a "Pri/RB" column whereas
this V06C-03 only has "Priority". That was documented in the RSTS/E manual
I had bought from DEC.
I have to wonder if we were running a version of V06C-03 with those
additional enhancements. It definitely was not 7.0. I graduated in June
1980 and I was told they upgraded to 7.0 that summer.
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