On Sun, Dec 31, 2017 at 6:41 AM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> > Stranger still is the "fancy" lights in RSTS ... "Fancy" because it
> > produces a rotating pattern not just in the data lights which is
> easy,
> > but also in the address lights. It runs
> On Dec 31, 2017, at 10:21 AM, Paul Koning via cctalk
> wrote:
>
> ...
>>
>> Ah; it must busy loop at loops spread across the address space? Clever!
>> (Perhaps using the mapping hardware so that it doesn't use too much _actual_
>> memory.) Is the source available?
>
> Correct, it uses the
> On Dec 31, 2017, at 9:41 AM, Noel Chiappa via cctalk
> wrote:
>
>> From: Paul Koning
>
>> RSTS-11 V4, which had a major reliability problem ... As part of trying
>> to keep the customer placated, DEC supplied full OS sources, 5
>> dectapes. ... We printed them ... I still have copies of tho
> From: Paul Koning
> RSTS-11 V4, which had a major reliability problem ... As part of trying
> to keep the customer placated, DEC supplied full OS sources, 5
> dectapes. ... We printed them ... I still have copies of those files.
Is that version available online? If not, maybe an
> On Dec 29, 2017, at 9:16 AM, Noel Chiappa via cctalk
> wrote:
>
>> From: Paul Koning
>
>> Here's what it looked like
>
> Not having RT11, I embedded this in a small stand-alone program (which took a
> little work, Unix assembler being rather different :-), so I could see it (it
> wasn't o
Yes, RT11 (when it introduced Sysgen, which was later than V2) did so by
supplying sources that had been stripped of their comments. So they were
useful for sysgen but not (easily) useable for custom OS changes.
DEC did offer source licenses for many of its operating systems, at extremely
hi
(Not RT-11, PDP-11, or even DEC...)
The Multics process scheduler quantum is 1/4 second; running processes are
interrupted and rescheduled every 1/4 second.
The idle process updates the light pattern and sleeps until the 1/4 timer
runs out or an interrupt occurs.
"
" Idle with a flashing pattern
> From: Paul Koning
> Here's what it looked like
Not having RT11, I embedded this in a small stand-alone program (which took a
little work, Unix assembler being rather different :-), so I could see it (it
wasn't obvious from the code what it did).
Pretty clever, to get that complex a pa
The sources to each release were usually included with the distribution
so that custom system settings could be sysgened. The sources are
uncommented, however.
You could implement this by finding the commented out source in the
sources and regenerating the system, with the code in the appropr
> On Dec 27, 2017, at 8:23 AM, Paul Koning wrote:
>
> ; "A SOURCE OF INNOCENT MERRIMENT!"
> ; - W.S. GILBERT, "MIKADO"
> ; "DID NOTHING IN PARTICULAR, AND DID IT VERY WELL"
> ; - W.S. GILBERT, "IOLANTHE"
> ; "TO BE IDLE IS THE ULTIMATE PURPOSE OF THE BUSY"
> ; - SAMUEL JOHNSON, "THE
It's been a standard feature of RT-11 FB since it first came out (in V2). You
need to set the select switch to display the "Display" register (unlike most
other OS idle patterns which rely on the data path display showing R0 when at a
WAIT instruction.
Here's what it looked like in V2.0 rmonfb
Do you have an octal or asm listing for the part of the code with the
migrating bar effect? This would be a good practice / test for me to try
on my RT 11 system. Merry Christmas
Bill
On Tue, Dec 26, 2017 at 7:05 PM, Fritz Mueller via cctalk <
cctalk@classiccmp.org> wrote:
> I have been able t
I have been able to sysgen an RT-11 XM monitor with the idle loop light pattern
enabled, and install and boot it on my PDP-11/45. Here’s a video of the idle
lights:
https://www.youtube.com/watch?v=ycADKwgnLpE
I built the latest simh and tu58em from source on my MacBook, then was able to
do th
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