Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

On 2017-04-13 02:27, Paul Koning wrote:



On Apr 12, 2017, at 2:22 AM, Johnny Billquist  wrote:

The DS500 is a PDP-11, true. But it's also the model that don't have any local 
storage, and thus uses MOP in way more ways than any other DS, which might be a 
problem unless you have some machine with a proper MOP implementation.
The MOP server that exists for Unix systems will not do. It only supports 
booting.


What else do you need?  MOP doesn't do much more than that.  Config data 
download?


Actually, it does. MOP can do reading and writing of data to files as 
well. And it can support terminal traffic. I don't even have the 
information on how this part of MOP works, all I know is that it does 
work. In RSX, you have a program called CCR for the terminal traffic 
(Console Carrier Request I think). RSX-11S systems can also do 
crashdumps over MOP if they crash.


I know that you can use CCR on VMS as well, but I don't remember the 
syntax. Might be some switch to SET HOST.



In any case, MOP is a trivial protocol, fixing omissions in an existing MOP 
implementation is pretty easy.


Possibly. I don't have all the details.


Hm.  mop.py?  That would be nicely portable and easy to create...


Feel free. :-)

Johnny

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Re: [Simh] DECserver (terminal server) emulation?

[Sergey Oboguev]

>> The MOP server that exists for Unix systems ... only supports booting.


> What else do you need?  MOP doesn't do much more than that

Academically speaking, MOP also provides remote control, counters, memory dump, 
loopback testing.Whether any of this is "needed" is a matter of taste of course 
(just like virtually all retro-computing is).
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Re: [Simh] DECserver (terminal server) emulation?

[Paul Koning]

> On Apr 12, 2017, at 2:22 AM, Johnny Billquist  wrote:
> 
> The DS500 is a PDP-11, true. But it's also the model that don't have any 
> local storage, and thus uses MOP in way more ways than any other DS, which 
> might be a problem unless you have some machine with a proper MOP 
> implementation.
> The MOP server that exists for Unix systems will not do. It only supports 
> booting.

What else do you need?  MOP doesn't do much more than that.  Config data 
download?

In any case, MOP is a trivial protocol, fixing omissions in an existing MOP 
implementation is pretty easy.

Hm.  mop.py?  That would be nicely portable and easy to create...

paul


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Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

On 2017-04-12 19:21, Gary Lee Phillips wrote:

Surely a SimH PDP or VAX on another host (or even the same one) could
provide a well-featured MOP server?


Yes. It should...

Johnny



--Gary


The DS500 is a PDP-11, true. But it's also the model that don't have any
local storage, and thus uses MOP in way more ways than any other DS,
which might be a problem unless you have some machine with a proper MOP
implementation.
The MOP server that exists for Unix systems will not do. It only
supports booting.

   Johnny




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Re: [Simh] DECserver (terminal server) emulation?

[Mark Pizzolato]

A simh VMS host will work just fine for any DECserver MOP activity.

- Mark

On Apr 12, 2017 3:40 PM, Kevin Handy  wrote:
A simh VMS system should work like the real thing. Just cnfigure it as you 
would for a real decserver, and it should work just fine. I think I did this 
for a Decserver-200 once so I could test to see if the 200 worked.

On Wed, Apr 12, 2017 at 3:47 PM, Cory Smelosky 
> wrote:
Does anyone have DECserver firmware source listings I wonder?

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Re: [Simh] DECserver (terminal server) emulation?

[Kevin Handy]

A simh VMS system should work like the real thing. Just cnfigure it as you
would for a real decserver, and it should work just fine. I think I did
this for a Decserver-200 once so I could test to see if the 200 worked.

On Wed, Apr 12, 2017 at 3:47 PM, Cory Smelosky  wrote:

> Does anyone have DECserver firmware source listings I wonder?
>
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Re: [Simh] DECserver (terminal server) emulation?

[Cory Smelosky]

Does anyone have DECserver firmware source listings I wonder?
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Re: [Simh] DECserver (terminal server) emulation?

[Gary Lee Phillips]

Surely a SimH PDP or VAX on another host (or even the same one) could
provide a well-featured MOP server?

--Gary

>The DS500 is a PDP-11, true. But it's also the model that don't have any
>local storage, and thus uses MOP in way more ways than any other DS,
>which might be a problem unless you have some machine with a proper MOP
>implementation.
>The MOP server that exists for Unix systems will not do. It only
>supports booting.
>
>Johnny
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Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

The DS500 is a PDP-11, true. But it's also the model that don't have any 
local storage, and thus uses MOP in way more ways than any other DS, 
which might be a problem unless you have some machine with a proper MOP 
implementation.
The MOP server that exists for Unix systems will not do. It only 
supports booting.


Johnny

On 2017-04-12 02:35, Jim Carpenter wrote:

On Tue, Apr 11, 2017 at 1:05 PM, Mark Pizzolato  wrote:

On Tuesday, April 11, 2017 at 9:00 AM, Paul Koning wrote:

Emulating a real server is probably harder.


Well, maybe  From my vague recollection, the DECServer 500 is a PDP11
system with Qbus serial and networking cards.  It might be a mere
configuration exercise to get there (or almost there).


It all depends on what the goal is.
If you emulate the server, you can run the server code on it, which means you
get exactly what that code does -- bugs and all.


Simh's PDP11 might be a path to doing that.


I think you're right. Like I said above, I think Simh can already do
the 11/53 CPU, the DEQNA, and the CXY08. I don't think Simh could do
any other type of line card when I last checked but who cares. So with
a little Simh configuration, a MOP server and software, and the DS500
ROM it might just almost work. But I believe Tim's original message
said he couldn't get the ROM loaded.

Jim
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Re: [Simh] DECserver (terminal server) emulation?

[Mark Pizzolato]

On Tuesday, April 11, 2017 at 5:35 PM, Jim Carpenter wrote:
> On Tue, Apr 11, 2017 at 1:05 PM, Mark Pizzolato 
> wrote:
> > On Tuesday, April 11, 2017 at 9:00 AM, Paul Koning wrote:
> >> Emulating a real server is probably harder.
> >
> > Well, maybe  From my vague recollection, the DECServer 500 is a PDP11
> > system with Qbus serial and networking cards.  It might be a mere
> > configuration exercise to get there (or almost there).
> >
> >> It all depends on what the goal is.
> >> If you emulate the server, you can run the server code on it, which means
> you
> >> get exactly what that code does -- bugs and all.
> >
> > Simh's PDP11 might be a path to doing that.
> 
> I think you're right. Like I said above, I think Simh can already do
> the 11/53 CPU, the DEQNA, and the CXY08. I don't think Simh could do
> any other type of line card when I last checked but who cares. So with
> a little Simh configuration, a MOP server and software, and the DS500
> ROM it might just almost work. But I believe Tim's original message
> said he couldn't get the ROM loaded.

Yes it doesn't have the actual DS500 ROM, BUT is that necessary?
The PDP11 simulator can do a DEQNA/DELQA MOP boot.  It would seem
that this combined with a MOP server with the correct DS500 image 
should be good enough since hopefully, the only purpose of the real 
ROM is to support the setup of the device MOP boot.  It would seem
reasonable that everything else would actually be provided in the 
downloaded DS500 image

- Mark
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Re: [Simh] DECserver (terminal server) emulation?

[Jim Carpenter]

On Tue, Apr 11, 2017 at 1:05 PM, Mark Pizzolato  wrote:
> On Tuesday, April 11, 2017 at 9:00 AM, Paul Koning wrote:
>> Emulating a real server is probably harder.
>
> Well, maybe  From my vague recollection, the DECServer 500 is a PDP11
> system with Qbus serial and networking cards.  It might be a mere
> configuration exercise to get there (or almost there).
>
>> It all depends on what the goal is.
>> If you emulate the server, you can run the server code on it, which means you
>> get exactly what that code does -- bugs and all.
>
> Simh's PDP11 might be a path to doing that.

I think you're right. Like I said above, I think Simh can already do
the 11/53 CPU, the DEQNA, and the CXY08. I don't think Simh could do
any other type of line card when I last checked but who cares. So with
a little Simh configuration, a MOP server and software, and the DS500
ROM it might just almost work. But I believe Tim's original message
said he couldn't get the ROM loaded.

Jim
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Re: [Simh] DECserver (terminal server) emulation?

[Mark Pizzolato]

On Tuesday, April 11, 2017 at 9:00 AM, Paul Koning wrote:
> Emulating a real server is probably harder.  

Well, maybe  From my vague recollection, the DECServer 500 is a PDP11 
system with Qbus serial and networking cards.  It might be a mere 
configuration exercise to get there (or almost there).

> It all depends on what the goal is.
> If you emulate the server, you can run the server code on it, which means you
> get exactly what that code does -- bugs and all.  

Simh's PDP11 might be a path to doing that.

- Mark 
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Re: [Simh] DECserver (terminal server) emulation?

[Richard]

In article <58ec2b2e.2070...@9track.net>,
Matt Burke  writes:

> I can't find where I downloaded this from but here is the DECserver 300
> Technical Description:
> 
> http://www.9track.net/decserver/ek-a0367-tm-001.pdf

Nice!


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Re: [Simh] DECserver (terminal server) emulation?

[Paul Koning]

Emulating a real server is probably harder.  It all depends on what the goal 
is.  If you emulate the server, you can run the server code on it, which means 
you get exactly what that code does -- bugs and all.  If you implement LAT at 
the protocol level, it's an independent implementation with a distinct set of 
bugs.

It also depends on what you enjoy.  You may pick the harder job because it's 
fun to do.  For example, if you have a PDP-11 Fortran program, you could simply 
compile it with Linux Fortran and run it on your PC -- or you could compile it 
on your RT11 or RSTS or whatever PDP11 system and run "the real thing".  Which 
one is right?  They both are.  Pick the one that floats your boat.

paul

> On Apr 11, 2017, at 11:11 AM, khandy21yo  wrote:
> 
> Would it be easier to emulate a Dec server, or fix the Linux Decnet code?
> 
> If you had LAT working well under Linux, then writing a Dec server would be a 
> simple she'll script. Well, maybe not real simple to get all the details 
> right, but not too hard.
> 

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Re: [Simh] DECserver (terminal server) emulation?

[khandy21yo]

Would it be easier to emulate a Dec server, or fix the Linux Decnet code?
If you had LAT working well under Linux, then writing a Dec server would be a 
simple she'll script. Well, maybe not real simple to get all the details right, 
but not too hard.


Sent from my Galaxy Tab® A
 Original message From: Pontus Pihlgren <pon...@update.uu.se> 
Date: 4/11/17  4:54 AM  (GMT-07:00) To: Jim Carpenter <j...@deitygraveyard.com> 
Cc: simh@trailing-edge.com Subject: Re: [Simh] DECserver (terminal server) 
emulation? 
On Tue, Apr 11, 2017 at 05:40:55AM -0400, Jim Carpenter wrote:
> 
> Meh. I like the DECserver interface and I only need LAT. And as you said,
> the Linux LAT isn't perfect.
> 

Precisely, people complain about LAT in linux or the poor emulation of 
glass terminals. Getting a DECserver and VT2x0 emulated should raise the 
bar a bit.

/P
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Re: [Simh] DECserver (terminal server) emulation?

[Jim Carpenter]

On Apr 10, 2017 14:59, "Johnny Billquist"  wrote:

On 2017-04-10 12:05, Jim Carpenter wrote:

>
>
> On Apr 8, 2017 16:37, "Tim Stark"  > wrote:
>
> I have a great idea about DECserver emulator.  Does anyone plan to
> emulate one of DECserver series?
>
>
> I have always wanted an emulator for a DECserver 500! My ISP only hands
> out 1 IP address so using NAT port forwarding to hang a DECserver off
> port 23 would be really nice. I may have other uses for it too. (No, I
> don't want a real one. I have enough stuff here.)
>

Seems like you are trying to find complex solutions for simple problems.


For me it's a simple solution to a simple problem; Tim is the one doing all
the hard work. :)

Besides, if complexity scared me I would have picked a different hobby.



Wouldn't it be easier to just write some small piece of software that
accepts incoming connections on the telnet port, and can let you connect to
other things without having to emulate a whole DECserver?


Meh. I like the DECserver interface and I only need LAT. And as you said,
the Linux LAT isn't perfect.


I used DECservers in the past and want to use them again. It would just
make things feel right when I'm playing.

Jim
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Re: [Simh] DECserver (terminal server) emulation?

[Matt Burke]

On 08/04/2017 21:37, Tim Stark wrote:
> I am still looking for DS 300 tech docs.
>
>  
>

I can't find where I downloaded this from but here is the DECserver 300
Technical Description:

http://www.9track.net/decserver/ek-a0367-tm-001.pdf

Matt

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Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

On 2017-04-11 00:30, Richard wrote:

In article <01d2b0a7$e742afe0$b5c80fa0$@verizon.net>,
"Tim Stark"  writes:


I have a great idea about DECserver emulator.  Does anyone plan to emulate
one of DECserver series?

I discovered DS 200, 300 and 500 ROM images that I already downloaded some
time ago.  DS 200 uses 68000 processor and DS 500 uses KDJ11-SD processor.


Oh, now I see, so ignore my previous email asking what you meant by
DS200/300/500.  I didn't realize you were writing DS to mean DECserver.

I know with X terminals you need more than what's in the ROMs to get a
functioning unit because they boot over the network.  Hopefully the
terminal servers aren't that complicated.  Maybe they just load a
config off the network, if anything at all.


All the ROM contains is enough code to boot using MOP on the ethernet. 
All the actual implementation of the DECserver itself is in the 
downloaded image. The DS200 image, for example is close to 200 Kbytes.


Johnny

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Re: [Simh] DECserver (terminal server) emulation?

[Richard]

In article <000b01d2b0c1$77a78650$66f692f0$@verizon.net>,
"Tim Stark"  writes:

> Yes, I know that.  I have DS software for all DS servers (OpenVMS 
> consolidation library).

Is this in a place I can mirror it?  I'm trying to archive all the
relevant terminal related stuff via terminals-wiki, etc.
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Re: [Simh] DECserver (terminal server) emulation?

[Richard]

In article <01d2b0a7$e742afe0$b5c80fa0$@verizon.net>,
"Tim Stark"  writes:

> I have a great idea about DECserver emulator.  Does anyone plan to emulate
> one of DECserver series?
> 
> I discovered DS 200, 300 and 500 ROM images that I already downloaded some
> time ago.  DS 200 uses 68000 processor and DS 500 uses KDJ11-SD processor.

Oh, now I see, so ignore my previous email asking what you meant by
DS200/300/500.  I didn't realize you were writing DS to mean DECserver.

I know with X terminals you need more than what's in the ROMs to get a
functioning unit because they boot over the network.  Hopefully the
terminal servers aren't that complicated.  Maybe they just load a
config off the network, if anything at all.
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Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

On 2017-04-10 12:05, Jim Carpenter wrote:



On Apr 8, 2017 16:37, "Tim Stark" > wrote:

I have a great idea about DECserver emulator.  Does anyone plan to
emulate one of DECserver series?


I have always wanted an emulator for a DECserver 500! My ISP only hands
out 1 IP address so using NAT port forwarding to hang a DECserver off
port 23 would be really nice. I may have other uses for it too. (No, I
don't want a real one. I have enough stuff here.)


Seems like you are trying to find complex solutions for simple problems.

Wouldn't it be easier to just write some small piece of software that 
accepts incoming connections on the telnet port, and can let you connect 
to other things without having to emulate a whole DECserver?


Johnny

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Re: [Simh] DECserver (terminal server) emulation - MAME

[Pontus Pihlgren]

Hi

I'd be interrested in this to.

It is quite a coincidence that this is brought up just now. I hade the 
idea this friday that I should try to emulate the vt220, seems I don't 
have to now.

Thank you,
Pontus.

On Sat, Apr 08, 2017 at 11:52:17PM +, Sancho Villa, Roberto wrote:
> Hi Folks
> 
> I have MAME 0.177 running VT240 emulation fine.
> I connected it to SimH as "retroterminal". Works very good, and looks very 
> pretty as I set up the config to simulate a CRT.
> 
> Don't know if versions after this still working.
> 
> I can send the config files to anyone interested.
> 
> Best regards
> Roberto
> 
> 
> Date: Sat, 08 Apr 2017 16:48:44 -0400
> From: "Tim Stark" 
> To: 
> Subject: [Simh] DEC VT emulators on MAME
> Message-ID: <000c01d2b0a9$835edec0$8a1c9c40$@verizon.net>
> Content-Type: text/plain; charset="utf-8"
> 
> Folks,
> 
> 
> 
> I have a copy of MAME emulator and learned that someone is working on new DEC 
> VT emulators for MAME.
> 
> 
> 
> He is implementing some VT series like VT100 through VT520 but they are 
> marked as not working.
> 
> 
> 
> Does anyone know about VT emulators on MAME?
> 
> 
> 
> In that past (at college), I used some VT terminals - VT100, VT102, VT125, 
> VT220, VT240, VK100, and Tek 4207.
> 
> 
> 
> I wrote some programs to draw graphics on VT125, VT240, VK100 and Tek 4207 
> for homework assignments at my computer graphics class.
> 
> 
> 
> Some VT 100/200 series uses 8080 processor.  VT 240 uses T11 processor.
> 
> I found some tech docs but I am still looking for VT330/VT340 tech docs.
> 
> 
> 
> Tim
> 
> 
> 
> 
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Re: [Simh] DECserver (terminal server) emulation - MAME

[Ray Jewhurst]

I am interested as well.
Thanks
Ray

On Apr 8, 2017 8:43 PM, "Tim Stark" <fswo...@verizon.net> wrote:

Thanks for let me know.  Yes, I am interested for your configs for my MAME
v0.184 (latest) emulator.  I will try it soon.

I have plans to implement VT240 and VT340 into my MSE emulator soon.

Tim

-Original Message-
From: Sancho Villa, Roberto [mailto:rsan...@indra.es]
Sent: Saturday, April 8, 2017 7:52 PM
To: Tim Stark <fswo...@verizon.net>
Cc: simh@trailing-edge.com
Subject: RE: [Simh] DECserver (terminal server) emulation - MAME

Hi Folks

I have MAME 0.177 running VT240 emulation fine.
I connected it to SimH as "retroterminal". Works very good, and looks very
pretty as I set up the config to simulate a CRT.

Don't know if versions after this still working.

I can send the config files to anyone interested.

Best regards
Roberto

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Re: [Simh] DECserver (terminal server) emulation?

[Tim Stark]

I checked Amazon for any multi-serial port USB adaptors and found 4-port or 
8-port serial USB adaptors.

 

Someday, I will try that.  I will start with telnet server.

 

Tim

 

From: Zane Healy [mailto:heal...@aracnet.com] 
Sent: Saturday, April 8, 2017 5:01 PM
To: Tim Stark <fswo...@verizon.net>
Cc: simh@trailing-edge.com
Subject: Re: [Simh] DECserver (terminal server) emulation?

 

If you did such emulation, would you include serial support, so a serial 
terminal could be attached to the computer running the emulator?  If so, that 
would be seriously cool!

 

Zane

 

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Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

On 2017-04-09 01:40, Tim Stark wrote:

Yes, I know that.  I have DS software for all DS servers (OpenVMS  
consolidation library).


Good. Because this is what you mostly need, not the roms, if you are to 
emulate a DS.



Yes, That is a bug in DECnet for Linux.  I tried to install it. When I 
attempted to access DECnet, Linux system instantly crashed.


Uh? DECnet have nothing to do with the DECservers...
They talk LAT, not DECnet. You bringing up DECnet or not will have no 
bearing on your DECservers. Emulated or real.



That's why I like to emulate DS server for telnet server and multi-serial port 
USB adaptor.


You seem slightly confused about protocols here. ;-)

Johnny

--
Johnny Billquist  || "I'm on a bus
  ||  on a psychedelic trip
email: b...@softjar.se ||  Reading murder books
pdp is alive! ||  tryin' to stay hip" - B. Idol
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Re: [Simh] DECserver (terminal server) emulation?

[Tim Stark]

Yes, I know that.  I have DS software for all DS servers (OpenVMS  
consolidation library).

Yes, That is a bug in DECnet for Linux.  I tried to install it. When I 
attempted to access DECnet, Linux system instantly crashed.

That's why I like to emulate DS server for telnet server and multi-serial port 
USB adaptor.

Tim

-Original Message-
From: Simh [mailto:simh-boun...@trailing-edge.com] On Behalf Of Johnny Billquist
Sent: Saturday, April 8, 2017 5:55 PM
To: simh@trailing-edge.com
Subject: Re: [Simh] DECserver (terminal server) emulation?

The roms for the DS100, DS200 and DS300 are only for booting. The actual system 
is always downloaded over MOP, and the images are available.
Not sure what you intend to do with this, though. Isn't easier to just write a 
LAT client, if you want that?
There even already exists one, although a bit buggy, if you are interested.

Johnny


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Re: [Simh] DECserver (terminal server) emulation?

[Johnny Billquist]

On 2017-04-08 22:37, Tim Stark wrote:

Folks,



I have a great idea about DECserver emulator.  Does anyone plan to
emulate one of DECserver series?



I discovered DS 200, 300 and 500 ROM images that I already downloaded
some time ago.  DS 200 uses 68000 processor and DS 500 uses KDJ11-SD
processor.



SIMH’s existing 11/53 emulator can virtually be as DECserver 500 with
that DS500 ROM image.



SIMH’s 11/53 emulator do not have ROM mapping for that ROM image. My
copy of KDJ11-SD CPU technical manual said that it requires 32K or 64K
ROM image for booting.

ROM image start at 1740 through 1777 (wrapping 128K ROM space
with I/O page at top).



I have plans to implement that on my MSE emulator. I am still working on
it. VAX emulation is almost finished.



Also, I found DS 200 tech docs through eBay.  I finally found CI780 tech
docs!!!

I am still looking for DS 300 tech docs.



Any ideas?


The roms for the DS100, DS200 and DS300 are only for booting. The actual 
system is always downloaded over MOP, and the images are available.
Not sure what you intend to do with this, though. Isn't easier to just 
write a LAT client, if you want that?

There even already exists one, although a bit buggy, if you are interested.

Johnny

--
Johnny Billquist  || "I'm on a bus
  ||  on a psychedelic trip
email: b...@softjar.se ||  Reading murder books
pdp is alive! ||  tryin' to stay hip" - B. Idol
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Re: [Simh] DECserver (terminal server) emulation?

[Zane Healy]

If you did such emulation, would you include serial support, so a serial 
terminal could be attached to the computer running the emulator?  If so, that 
would be seriously cool!

Zane



> On Apr 8, 2017, at 1:37 PM, Tim Stark  wrote:
> 
> Folks,
>  
> I have a great idea about DECserver emulator.  Does anyone plan to emulate 
> one of DECserver series?
>  
> I discovered DS 200, 300 and 500 ROM images that I already downloaded some 
> time ago.  DS 200 uses 68000 processor and DS 500 uses KDJ11-SD processor.
>  
> SIMH’s existing 11/53 emulator can virtually be as DECserver 500 with that 
> DS500 ROM image.
>  
> SIMH’s 11/53 emulator do not have ROM mapping for that ROM image. My copy of 
> KDJ11-SD CPU technical manual said that it requires 32K or 64K ROM image for 
> booting.
> ROM image start at 1740 through 1777 (wrapping 128K ROM space with 
> I/O page at top).
>  
> I have plans to implement that on my MSE emulator. I am still working on it. 
> VAX emulation is almost finished.
>  
> Also, I found DS 200 tech docs through eBay.  I finally found CI780 tech 
> docs!!! 
> I am still looking for DS 300 tech docs. 
>  
> Any ideas?
>  
> Tim 
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Re: [Simh] DECserver (terminal server) emulation?

[Ray Jewhurst]

Tim,
I have always wanted to see how many DEC machines could be emulated and
those would be great choices. I am not much of a coder but if you need help
with the other aspects of these, let me know where I can help.  I have been
trying forever to get my butt moving and do work helping out with the help
and documentation of Simh and this may just be the kick in the pants I
need.

Thanks
Ray

On Apr 8, 2017 4:37 PM, "Tim Stark"  wrote:

> Folks,
>
>
>
> I have a great idea about DECserver emulator.  Does anyone plan to emulate
> one of DECserver series?
>
>
>
> I discovered DS 200, 300 and 500 ROM images that I already downloaded some
> time ago.  DS 200 uses 68000 processor and DS 500 uses KDJ11-SD processor.
>
>
>
> SIMH’s existing 11/53 emulator can virtually be as DECserver 500 with that
> DS500 ROM image.
>
>
>
> SIMH’s 11/53 emulator do not have ROM mapping for that ROM image. My copy
> of KDJ11-SD CPU technical manual said that it requires 32K or 64K ROM image
> for booting.
>
> ROM image start at 1740 through 1777 (wrapping 128K ROM space with
> I/O page at top).
>
>
>
> I have plans to implement that on my MSE emulator. I am still working on
> it. VAX emulation is almost finished.
>
>
>
> Also, I found DS 200 tech docs through eBay.  I finally found CI780 tech
> docs!!!
>
> I am still looking for DS 300 tech docs.
>
>
>
> Any ideas?
>
>
>
> Tim
>
> ___
> Simh mailing list
> Simh@trailing-edge.com
> http://mailman.trailing-edge.com/mailman/listinfo/simh
>
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[Simh] DECserver (terminal server) emulation?

[Tim Stark]

Folks,

 

I have a great idea about DECserver emulator.  Does anyone plan to emulate
one of DECserver series?

 

I discovered DS 200, 300 and 500 ROM images that I already downloaded some
time ago.  DS 200 uses 68000 processor and DS 500 uses KDJ11-SD processor.

 

SIMH's existing 11/53 emulator can virtually be as DECserver 500 with that
DS500 ROM image.

 

SIMH's 11/53 emulator do not have ROM mapping for that ROM image. My copy of
KDJ11-SD CPU technical manual said that it requires 32K or 64K ROM image for
booting.

ROM image start at 1740 through 1777 (wrapping 128K ROM space with
I/O page at top).

 

I have plans to implement that on my MSE emulator. I am still working on it.
VAX emulation is almost finished.

 

Also, I found DS 200 tech docs through eBay.  I finally found CI780 tech
docs!!! 

I am still looking for DS 300 tech docs. 

 

Any ideas?

 

Tim 

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