On 2017-03-18 12:49, Tim Stark wrote:
I got and installed DOSBox 0.74. I tried to access my RT11 disk
images but PUTR hung up after entered ‘mount rx0: image.dsk’.
Years ago I reconstructed an RT-11/Fuzzball disk using
dosemu + dosemu-freedos + PUTR. It didn't work interactively
and resorted
On 2017-03-06 11:58, Warren Toomey wrote:
I've tried all of the SET CPU IDLE values and I can't find a value that
lowers
the CPU usage below 100%. Is there a compile flag that I need to set?
The
host system is Ubuntu 15.10 and Linux 4.2.0-42-generic.
I guess idle pattern detection missing or
On 2016-12-12 16:34, Johnny Billquist wrote:
I would start at CPU idle detection.
It seems to be working, but definitely a good place to look
at to get more bang(vaxen) for my bucks(cheap x86's/rpi clones).
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On 2016-12-12 16:09, Jeremy C. Reed wrote:
For VAX-11/780 see the benchmark results and source code from Kashtan's
research. AUUGN-V02.4.pdf starting on PDF page 24. And see Joy's
followup in AUUGN-V02.3.pdf (PDF Page 60). See
http://minnie.tuhs.org/Archive/Documentation/AUUGN
While your OS
On 2016-12-12 16:29, khandy21yo wrote:
Is your speed problem limited to disk access, or is it also CPU
related? Running in a browser might mean that the disk access is going
through the network, which can slow it down excessively, There are
several bottlenecks on a system, like slow disks, that
On 2016-12-12 14:34, Paul Koning wrote:
On Dec 12, 2016, at 2:13 PM, Jacob Goense <d...@xs4all.nl> wrote:
I'm running simh in rather tight corners. Mostly VAX/780 and PDP-11/70
with V6 or BSD. Simh runs in a browser, or, I have (too) many of them
on underpowered Asus Eee PC's. Any tips on
I'm running simh in rather tight corners. Mostly VAX/780 and PDP-11/70
with V6 or BSD. Simh runs in a browser, or, I have (too) many of them
on underpowered Asus Eee PC's. Any tips on how I can check if I have
taken things too far? Like minimum values to look for in SHOW CLOCK,
or any tools I can
Oh, and of course there is Fuzzball, the early IP/TCP and NTP
testbed for the PDP-11 using RT-11 for build and boot. Later
on it ran production timeservers and the first NSFNet backbone.
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On 2016-10-22 17:46, Jacob Goense wrote:
I vaguely recall lore about 4.x BSD stuff being ported to the PDP-11
ending
with the machine being thrown out of the window. Citations are welcome,
or
maybe this should be crossed over to TUHS.
Found it. https://www.youtube.com/watch?v=bVSXXeiFLgk (31
On 2016-10-22 12:55, Al Kossow wrote:
On 10/22/16 7:44 AM, Ray Jewhurst wrote:
I have an idea for project to teach my self rudimentary OS design and
I would like to use RT-11 as an example
Did anyone ever port MINIX to the PDP-11?
No way.
I vaguely recall lore about 4.x BSD stuff being
On 2016-03-17 14:27, Gregg Levine wrote:
If I remember correctly it would be up to the maintainer of the
package as shown on the appropriate page on the Debian site. You'd
need to check there to see who that is, and then follow their
procedures for requesting the update.
Might be a nice
On 2016-02-29 23:26, Robert Armstrong wrote:
But, be aware that all the IMP software we have is from the early
70s and predates TCP. I don’t know if there was ever any OS for the
KS10 that supported NCP networking, but if there was then it’s
possible you could get something running.
Flag
On 2016-02-29 22:20, SPC wrote:
Hum... not sure about this, but someone talked here some years ago
about a modification of the SIMH Honeywell simulator to convert it in
one IMP. I assume that he had some kind of BBN IMP code.
I'm not sure if this project would be limited to tray to simulate
On 2016-01-09 17:58, Will Senn wrote:
A little more on topic and I've asked this question differently in the
past, but now I think I have a better formulation of the question -
are there SimH compatible video terminal simulators available and
listed somewhere?
For a vt220 I just fire up putty
On 2015-12-31 21:44, Random832 wrote:
Speaking of escape sequences, for systems that don't use terminals
(i.e. Windows) it might be nice for simh to have built-in emulation for
something simple like a VT-52 or an ADM-3A. Or maybe have a telnet
console.
Terminal emulators do a good job here.
On 2015-10-07 17:22, Johnny Billquist wrote:
I believe there was also DECnet for SunOS, and I know there was DECnet
for Symbolics Lisp machines. And people have implemented DECnet for
Linux, and I'm sure there are other examples out there as well...
According to its HELP.TXT even Mills'
On 2015-03-04 23:57, Dave Osborne wrote:
Don't forget that DEC did not adopt Unix because of Ken Olsen snake
oil. The IT world could have been a totally different place
When was Unix put up to adoption?
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on a related note, it seems that its.os.org is no longer
on the internet, but is still listed as the URL to find ITS
images, ie on trailing-edge's page for the klh10 emulator:
http://klh10.trailing-edge.com/
is anyone aware of a mirror of the its.os.org files or
other sources for ITS
Nope, still getting size function failed.
[ken@raptor Disks]$ dd if=/dev/zero bs=1024 count=5120 of=rt11dat.dsk
5120+0 records in
5120+0 records out
5242880 bytes (5.2 MB) copied, 0.0115284 s, 455 MB/s
[ken@raptor Disks]$ pdp11 rt11.cmd
PDP-11 simulator V3.6-1
Create bad block table on
Anyone know how to initialize a disk under RT-11 with simh?
I can format and initialize RK05 images, but INITIALIZE fails on RL01 with
?DUP-F-Size function failed.
Assuming
ftp://minnie.tuhs.org/UnixArchive/PDP-11/Distributions/research/Dennis_v6/v6doc.gz
is a RK05 image:
Anyone know how to initialize a disk under RT-11 with simh?
I can format and initialize RK05 images, but INITIALIZE fails on RL01
with
?DUP-F-Size function failed.
Assuming
[snip previous reply after misreading]
Here is for the RL01.
root@mercury:/museum/fuzzball/a# dd if=/dev/zero
Anyone know how to initialize a disk under RT-11 with simh?
I can format and initialize RK05 images, but INITIALIZE fails on RL01
with
?DUP-F-Size function failed.
Assuming
[snip previous reply after misreading]
Here is for the RL01.
[snip previous reply after still misreading]
Ok, that
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