[Simh] Quest from 1979 on RSTS/E V06C-03 in Simh (Brett Bump)

[Brett Bump]

(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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>