[cctalk] Re: Vmebus

[Kevin Lee via cctalk]

Please unsubscribe me from this list. 



On Wed, Jan 31, 2024, at 2:57 PM, Bill Degnan via cctalk wrote:
> Sorry, that is the old FAQ and may not be correct, here is a newer page
> https://classiccmp.org/mailman3/postorius/lists/cctalk.classiccmp.org/
> 
> On Wed, Jan 31, 2024 at 7:11 AM Kevin Lee via cctalk 
> wrote:
> 
> > Unsubscribe me from this list.
> >
> >
> >
> > On Wed, Jan 31, 2024, at 12:14 PM, Tom Ivar Helbekkmo via cctalk wrote:
> > > Bill Degnan via cctalk  writes:
> > >
> > > > Anyone have a VMEbus system they use at least occasionally? If so, what
> > > > make/model/config?
> > >
> > > I have a couple of old Stride Micro systems, a 440 and a 460, that get
> > > turned on very occasionally.  They run UniStride 2.1, which is based on
> > > SVR2, if memory serves.  Nice 68010-based machines, interesting software
> > > architecture, with an advanced BIOS that supports several operating
> > > systems, and can even run multiple OS-es simultaneously.
> > >
> > > -tih
> > > --
> > > Most people who graduate with CS degrees don't understand the
> > significance
> > > of Lisp.  Lisp is the most important idea in computer science.  --Alan
> > Kay
> > >
> >
> 

[cctalk] Re: Vmebus

[Kevin Lee via cctalk]

Unsubscribe me from this list. 



On Wed, Jan 31, 2024, at 12:14 PM, Tom Ivar Helbekkmo via cctalk wrote:
> Bill Degnan via cctalk  writes:
> 
> > Anyone have a VMEbus system they use at least occasionally? If so, what
> > make/model/config?
> 
> I have a couple of old Stride Micro systems, a 440 and a 460, that get
> turned on very occasionally.  They run UniStride 2.1, which is based on
> SVR2, if memory serves.  Nice 68010-based machines, interesting software
> architecture, with an advanced BIOS that supports several operating
> systems, and can even run multiple OS-es simultaneously.
> 
> -tih
> -- 
> Most people who graduate with CS degrees don't understand the significance
> of Lisp.  Lisp is the most important idea in computer science.  --Alan Kay
> 

[cctalk] A little help please

[Kevin Lee via cctalk]

Could someone kindly delete me from this list.. 
The mailing list software says it does not know me and yet I am getting emails 
:)

Thanks
K.

Ps: appreciate the help. 

[cctalk] Radio Shack TRS-80 Model 200 for Sale

[Kevin Lee via cctalk]

Offers Welcome before I toss it in the bin.. 

thanks
Kevin 

[cctalk] Trs80 model 200 for sale

[Kevin Lee via cctalk]

Radio Shack trs80 Model 200
With an option rom.  Works ok. 
Decent shape.  Offers welcome. 
Shipping from central EU. 

Cheers 

K. 

Re: testing

[Kevin Lee via cctalk]

Works ok now.  Was silent for a few days. 


> On 11 Mar 2022, at 13:59, jwest--- via cctalk  wrote:
> 
> Re: "ACK", Love this place 
> 
> Not sure what coughed on the mailing list server, reboot fixed it oddly. 
> Thanks DaveM for poking me about it!
> 
> J
> 
> -Original Message-
> From: William Sudbrink  
> Sent: Thursday, March 10, 2022 4:29 PM
> To: jw...@classiccmp.org; 'General Discussion: On-Topic and Off-Topic Posts' 
> 
> Subject: RE: testing
> 
> ACK
> 
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of jwest--- via 
> cctalk
> Sent: Thursday, March 10, 2022 5:29 PM
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> 
> Subject: testing
> 
> Test test
> 
> 
> --
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus

Atari 800 to C64

[Kevin Lee via cctalk]

https://redd.it/p24fo8

Turns ur 800 in a c64. 
Cool

Re: OT: Newsreader for Windows

[Kevin Lee via cctalk]

Speaking of GRC… Steve posted that he just got married a few days ago.. 

congrats.. to Steve :) 



> On 12 Apr 2021, at 14:40, Stefan Skoglund via cctalk  
> wrote:
> 
> tor 2021-04-01 klockan 12:15 -0600 skrev Grant Taylor via cctalk:
>> On 4/1/21 11:36 AM, Rob Jarratt via cctalk wrote:
>>> what Newsreader programs do people use on Windows?
>> 
>> I run Linux, so I don't have first hand experience with news readers
>> on 
>> Windows.  But I do know that people use the following:
>> 
>>   - Gravity (S.G. is updating it at GRC; 
>> https://www.grc.com/discussions.htm)
>>   - Thunderbird (I use this on Linux)
>>   - Xnews (I think?)
>> 
>> I know that there are a lot more GUI options on Windows than there
>> are 
>> on Linux.
>> 
>> There is probably also the option of using the TUI news readers in /
>> via 
>> Windows Services for Linux (?is that the proper name for /today/?).
>> 
> 
> Do gnus work in GNU Emacs running native on windows ?
> 

IBM cpu tear down

[Kevin Lee via cctalk]

https://www.righto.com/2021/03/logic-chip-teardown-from-vintage-ibm.html

Enjoy. 

Re: Does anyone have an H11 and need a H27 card?

[Kevin Lee via cctalk]

Remember.

Wherever you go..

There you are ...



On Tue, Dec 29, 2020, at 12:20 AM, Jim Manley via cctalk wrote:
> On Sun, Dec 27, 2020 at 3:12 PM Chris Zach via cctalk 
> wrote:
> 
> > It is the way
> 
> 
> The Force is strong in this one ...
> 
> >
> >
> 

Re: HP DDS3 DAT and DEC Tapes

[Kevin Lee via cctalk]

Clean the optical sensor/push button?


> On 26 Dec 2020, at 13:03, Patrik Schindler via cctalk  
> wrote:
> 
> Hello Folks,
> 
> I’m having fun time to erase used DDS tapes for reuse. I’ve been collecting 
> those over years. Recently, I discovered that with DEC brand tapes, the drive 
> reports the cartridges to be write protected, eventhough the slider is closed 
> which means, they’re supposed to be writable. I suspect there is a software 
> write protect flag on them.
> 
> Any thoughs, hints, advices how to unlock these tapes for overwrite?
> 
> :wq! PoC
> 

Re: Microvax 3100 VMS 7.3 password reset.

[Kevin Lee via cctalk]

Where are you living you can find such nice kit please ?

On Nov 11, 2020 4:06 PM, Antonio Carlini via cctalk  
wrote:
On 11/11/2020 14:17, Dave Wade G4UGM via cctalk wrote:
> And as HP are no longer issuing hobbyist licences you might want to export 
> the licence data base
>

Indeed. Backing that up is definitely a good idea.


Also worth noting that this is a uVAX 3100-96, which is a nice catch.
Over 30 VUPs (compared to 2.4 VUPs for the original uVAX 3100).

No issues (afaik) with OpenVMS booting off disks greater than 1GB and it
will take up to 128MB of memory.

Nice and clean too (as is the VT520).


Antonio


--
Antonio Carlini
anto...@acarlini.com

Re: AOL CD and other old PC software...

[Kevin Lee via cctalk]

Link for the prodigy work please? Seems interesting.. 
thanks
k.


> On 15 Oct 2020, at 22:24, Grant Taylor via cctalk  
> wrote:
> 
> On 10/15/20 12:06 PM, Fred Cisin via cctalk wrote:
>> But, what, other than rarity, can you use an AOHell CD for?
> 
> I know someone that's working on standing up a private version of Prodigy.
> 
> I would not be surprised if someone else is trying to do similar with AOL.
> 
> I'd suggest uploading things to Internet Archive, if they are of a version 
> that's not yet represented.
> 
> 
> 
> -- 
> Grant. . . .
> unix || die

Re: FYI sunhelp.org down

[Kevin Lee via cctalk]

There is no content on any other those sites, and some goto malware it seems..
So .. 


Having known bill for 15+ years.. yeah hard break for him.. rip..respect. 



> On 14 Oct 2020, at 22:08, John Klos via cctalk  wrote:
> 
>> I posted to  and saw my message got stuck in the mail
>> queue.  Upon a further inspection I saw that the domain has expired along
>> with `mrbill.net' where the nameservers used to reside and both have been
>> taken by someone else, taking the name service down for `sunhelp.org'.  I
>> can still reach Bill Bradford's personal page when I connect to the server
>> by its IPv4 address at: .
> 
> I noticed this, too. Since sunhelp.org uses mrbill.net DNS servers, and 
> because the server at 184.94.207.190 is still up, we can still see the 
> content if we make our own DNS, so I configured my server at 192.80.49.4 
> (athena.zia.io) to answer for mrbill.net, for sunhelp.org, for 
> fiftieshouse.com, and for lispmachine.net, so if you want to see any of 
> these, temporarily set your DNS server to 192.80.49.4.
> 
> I did this in part to mirror sunhelp.org, but I suspect there are already 
> mirrors out there.
> 
> Sorry to hear about Bill :(
> 
> John Klos

Re: OpenVMS Community License

[Kevin Lee via cctalk]

The current rights holders of VMS seem to be going in the right direction with 
Hobby freebies and reasonable friendly access to the OS..I guess they had 
Better curate the local VMS gurus as there are not a lot of them left on the 
planet.

:) 

openVMS forever.. can’t wait for a dell cluster of VMS machines :) 

Weird world. 



> On 29 Jul 2020, at 16:37, geneb via cctalk  wrote:
> 
> On Wed, 29 Jul 2020, Michael Kerpan via cctalk wrote:
> 
>> or some simulation thereof. If they DID decide that they cared, they'd be
>> within their right to go nuclear, but the odds of that happening are
>> exceedingly low.
>> 
> 
> The bad PR they'd attract by running down a bunch of poor hobbyists wouldn't 
> be worth the blowback I think.
> 
> g.
> 
> -- 
> Proud owner of F-15C 80-0007
> http://www.f15sim.com - The only one of its kind.
> http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
> Some people collect things for a hobby.  Geeks collect hobbies.
> 
> ScarletDME - The red hot Data Management Environment
> A Multi-Value database for the masses, not the classes.
> http://scarlet.deltasoft.com - Get it _today_!

Re: Adventures online

[Kevin Lee via cctalk]

Ask the tweet included in the initial posting.. 
I have nothing to do with it .. cheers


> On 22 Jul 2020, at 23:15, Kevin Monceaux via cctalk  
> wrote:
> 
> On Wed, Jul 22, 2020 at 09:52:14PM +0200, 821--- via cctalk wrote:
> 
>> Almost all InfoCom adventure games now online running on a mainframe!
>> Telnet to 35.209.67.107 (guest/guest1) and play text mode adventure games
>> on a mainframe
>> 
>> https://twitter.com/bmoshix/status/1285905078373814273/photo/1
> 
> What make/model mainframe are they running on, and what OS is it running?
> 
> 
> -- 
> 
> Kevin
> http://www.RawFedDogs.net
> http://www.Lassie.xyz
> http://www.WacoAgilityGroup.org
> Bruceville, TX
> 
> What's the definition of a legacy system? One that works!
> Errare humanum est, ignoscere caninum.

Re: Adventures online

[Kevin Lee via cctalk]

Well still glad its getting used :) 
cheers 


> On 22 Jul 2020, at 22:37, Ali via cctalk  wrote:
> 
>> Almost all InfoCom adventure games now online running on a mainframe!
>> Telnet to 35.209.67.107 (guest/guest1) and play text mode adventure
>> games on a mainframe
>> 
>> https://twitter.com/bmoshix/status/1285905078373814273/photo/1
> 
> 
> Too popular for its own good. Currently failing due to a lack of memory.
> 
> -Ali
> 

Re: UUCP on macOS / *BSD

[Kevin Lee via cctalk]

Mac OS 10.15 and above had very tight controls on what can run in user space. 
Areas are designated off limits and blocked for security reasons.  According to 
apple. OS X 11 is worse. 

K. 

> On 1 Jul 2020, at 20:13, Grant Taylor via cctalk  
> wrote:
> 
> On 6/28/20 6:48 PM, Grant Taylor wrote:
>> Does anyone have any experience with UUCP on macOS or *BSD systems that 
>> would be willing to help me figure something out?
> 
> I ended up getting this to work.
> 
> I don't know if it was a macOSism or a *BSDism, but the root of the problem 
> was crossing between users via setuid / setgid in relation to OpenSSH.
> 
> Two different versions of macOS behaved differently.
> 
> macOS Yosemite 10.10.5 runs the underlying ssh pipe command as the user 
> account that initiates the uucp / uuto / uux.
> 
> macOS Catalina 10.15.15 runs the underlying ssh pipe command as the _uucp 
> user, NOT the account that initiates the uucp / uuto / uux.
> 
> As such, on macOS Yosemite 10.10.5, I have to have the normal user's ssh 
> public key in the authorized_keys file on the remote system.
> 
> Conversely, on macOS Catalina 10.15.15, I have to have the _uucp user's ssh 
> public key in the authorized_keys file on the remote system.
> 
> I don't know why macOS Yosemite 10.10.5 and macOS Catalina 10.15.15 are 
> behaving differently, but they are.
> 
> These inconsistencies made identifying which client ssh config file -- 
> nominally ~/.ssh/config -- was used cumbersome.
> 
> For some unknown reason, I couldn't rely on "~/" or defaults to specify the 
> _uucp user's key (Identity) file or the known_hosts file on macOS Catalina 
> 10.15.15, despite the fact that it was running as the _uucp user.  I ended up 
> having to hard code the paths, as they were defaulting to the original user 
> account that initiated the uucp / uuto / uux.
> 
> I can only surmise that something is fundamentally different between Linux 
> and macOS in how it does things when changing user accounts via setuid & 
> setgid as I did not have any of these problems on multiple Linux machines.  I 
> can further surmise that something is different between macOS Yosemite 
> 10.10.5 and macOS Catalina 10.15.15.  I don't know if this is related to 
> System Integrity Protection or something else.
> 
> 
> 
> -- 
> Grant. . . .
> unix || die
> 
> 
> 
> 
> 
> -- 
> Grant. . . .
> unix || die

Mame vt100 emulation. Cool

[Kevin Lee via cctalk]

https://zork.net/~st/jottings/Real-VT102-emulation-with-MAME.html

FYI. 

Re: Future of cctalk/cctech

[Kevin Lee via cctalk]

Just keep the list here…
It is simple and works..

cheers



On 17 June 2020 at 07:24:16, Lars Brinkhoff via cctalk (cctalk@classiccmp.org) 
wrote:

Jon Elson wrote:  
> Yes, several other groups I read and contribute to have moved to  
> groups.io, and they are working quite well and reliably. Some options  
> require $10 a month to be free from ads.  

That's a red flag.  

Re: Looking for old Suns

[Kevin Lee via cctalk]

I used to work for sun at one time and would glad give some hardware you have a 
good home.
What is your inventory list please and your asking prices.   I would be an 
honor to rehouse something like those old troopers.

Cheers Kevin


From: cctalk  on behalf of Johan Helsingius via 
cctalk 
Sent: Tuesday, May 5, 2020 3:39:05 PM
To: cctalk@classiccmp.org 
Subject: Re: Looking for old Suns

I have a bunch of the pizza box SPARC ones that need to find a proper
home, but they are somewhat special as they were the ones from one of
the first pan-European Internet service providers (EUnet).

Julf

On 03-05-2020 17:22, silvercreekvalley via cctalk wrote:
> Hi,
>
> Every now and again I have a bit of time to mess with old computers - and 
> usually for whatever reason - its Sun machines for me.
>
> I’ve had loads over the years, played with them and passed them on.
>
> Does anyone have anything old Sun wise available in the UK? I’d love to find 
> an old VME bus machine but anything old or interesting. I can travel
> to pick stuff up etc, social distancing observed of course :D
>
> Anyway - PM me if you have anything that’s restorable :)
>
> Cheers
>
> Ian
>

Re: Looking for old Suns

[Kevin Lee via cctalk]

Thanks very much.. 
cheers
Kevin


> On 4 May 2020, at 20:41, Salik Rafiq via cctalk  wrote:
> 
> Have a chat with Peter Stokes pe...@ashlyn.co.uk he has a number of older 
> machines and some older SPARC station
> 
> Salik

Re: Looking for old Suns

[Kevin Lee via cctalk]

Please include me in that. Happy to add a spare space or 3 to my retro 
collection.  Mainland Europe based fire shipping.

Thanks


From: cctalk  on behalf of silvercreekvalley via 
cctalk 
Sent: Sunday, May 3, 2020 5:22:02 PM
To: cctalk@classiccmp.org 
Subject: Looking for old Suns

Hi,

Every now and again I have a bit of time to mess with old computers - and 
usually for whatever reason - its Sun machines for me.

I’ve had loads over the years, played with them and passed them on.

Does anyone have anything old Sun wise available in the UK? I’d love to find an 
old VME bus machine but anything old or interesting. I can travel
to pick stuff up etc, social distancing observed of course :D

Anyway - PM me if you have anything that’s restorable :)

Cheers

Ian

Pdp cpus

[Kevin Lee via cctalk]

Interesting stuff

https://github.com/1801BM1/cpu11

Re: stuff for sale - recent move

[Kevin Lee via cctalk]

Hi. 

I forgot to mention it’s an eye phone 
11 PRO 256gb. 

Thanks 


> On 1 Mar 2020, at 17:58, Joseph Zatarski via cctalk  
> wrote:
> 
> Hello Everyone,
> 
> I recently moved and just got my storage unit of stuff transported to the new 
> house. I'm starting to go through it all because I know there's a good 
> mixture of stuff I want and stuff I don't want but may be useful to someone 
> else.
> 
> I've started inventorying a lot of the stuff I'd like to pass on here: 
> https://docs.google.com/spreadsheets/d/19vhF-o6vx9g7l-D8cvLJ5OPJzpdmU9PTTknbxY-mY58/edit?usp=sharing
> 
> I'm not looking to get much out of any of this, pretty much just recover 
> whatever I paid for it plus effort for shipping (generally should be 50% or 
> less ebay value, plus cost of shipping). Alternatively, I'm in the west 
> suburbs of chicago if anyone local wants to pick something up.
> 
> Quick run down of what I've got posted so far:
> -a couple DEC Alpha items (RAM and SCSI caddy stuff, possibly a couple drives 
> later)
> -HP jetdirects for laserjet 4/5 (standalone to come later)
> -a KVM or two (more to come)
> -Mac network cards (nubus and one for IIsi or SE/30) as well as a couple 
> other accessories (Dayna Mini Etherprint, AAUI transceiver, more accessories 
> to come)
> -misc cables/adapters, if you have something specific in mind, let me know
> -PSU - mostly just some random ATX PSUs
> -a few telephone accessories (more to come)
> -ISA, PCI, PCI-X, PCIe cards (network, video, SCSI, FC)
>-possibly notable, Compaq ELSA GLoria Synergy graphics cards for Alpha PWS?
> 
> If anyone has further questions, wants pics, more description, testing of 
> item before sale, etc. feel free to contact me on or off list (if on list, 
> please CC me, I'll see it quicker) or on Freenode IRC (nick is joe_z).
> 
> As I recently moved, I don't have 24/7 internet available as of right now, 
> but once I do I'll have a bouncer on IRC 24/7.
> 
> Best Regards,
> Joe Z

Re: bitsavers is showing down here

[Kevin Lee via cctalk]

Yup it’s dead

> On 20 Jan 2020, at 03:15, jim stephens via cctalk  
> wrote:
> 
> 
> Not responding from the bitsavers.org domain.
> 
> I'm guessing if it's down, the list might be ailing, too.
> 
> thanks
> Jim

Re: anyone heard from Cindy Croxton?

[Kevin Lee via cctalk]

Dear Cindy

Hope you and your family get better and stronger in the coming months.. 
Best Wishes

On 15/1/2020, 10:28 PM, "cctalk on behalf of sales--- via cctalk" 
 wrote:

On 2020-01-14 11:24, Al Kossow via cctalk wrote:
> I tried sending an email about a week ago after noticing
> https://elecshopper.com/
> was "down for maintenance"

This has been a bad 3 months (health-wise) for my family. I should be 
back in the office next week.

Cindy

Re: swtpc.com expired???

[Kevin Lee via cctalk]

Current reg says will expire in 2020 
So has been renewed.  

Sent from my iPhone

> On 7 Nov 2019, at 06:15, William Sudbrink via cctalk  
> wrote:
> 
> Domain has been down for 7 days now.  No reply to emails.  Does anyone know
> anything?
> 
> -Original Message-
> From: William Sudbrink [mailto:wh.sudbr...@verizon.net] 
> Sent: Monday, November 04, 2019 12:29 PM
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> Subject: swtpc.com expired???
> 
> Anybody know if Mike Holley is OK?
> 
> Bill S.
> 
> 
> 
> -- 
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
> 

RE: SCSI2SD on VMS 5.4

[Kevin Lee via cctalk]

[https://tr.cloudmagic.com/h/v6/emailtag/tag/2.0/1552733316/85fc1846b5a972615d38b2f05dda8e74/9/f2d01fea9c6166636e0551859eb61c40/1fa4b1eaccd350d763ee60af85a71370/9efab2399c7c560b34de477b9aa0a465/newton.gif]

Why not try dd if working real disk of to SD card ?

On Sat, Mar 16, 2019 at 6:41pm, Dave Wade via cctalk 
mailto:cctalk@classiccmp.org>> wrote:


Rob,

Might be an issue with the card. The KZQSA was officially only supported
for CD-ROM and Tape.

http://www.microvax2.org/files/KZQSA%20Jumper%20Settings.htm

(towards the bottom)...
... have you tried with a real SCSI drive?

Dave

> -Original Message-
> From: cctalk  On Behalf Of Rob Jarratt via
> cctalk
> Sent: 16 March 2019 10:29
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: SCSI2SD on VMS 5.4
>
> I have been experimenting with a SCSI21SD V6 card trying to get it to work
on
> a VAX 4000-200 running VMS 5.4 using a KZQSA. It seems to recognise that
> there is a SCSI device there, but any attempt to access the device from
VMS
> 5.4 results in a Fatal Drive Error. I tried booting a VMS 7.3 image from
the
> SCSI2SD card and that worked.
>
>
>
> Obviously I have played with some of the settings, like SCSI2 mode etc,
but I
> have not found anything that works. Has anyone succeeded in getting this
> board to work on VMS 5.4?
>
>
>
> Thanks
>
>
>
> Rob

Re: Bogus "account hacked" message

[Kevin Lee via cctalk]

Delete it don’t respond and ignore it.. been getting them too.. change your 
password
If your that concerned.. it’s a fishing trip.. 

Cheers


On 08.01.19, 21:19, "cctalk on behalf of Guy Sotomayor Jr via cctalk" 
 wrote:

I’ve been getting those messages for a few months now and nothing bad has 
happened yet.  ;-)

TTFN - Guy

> On Jan 8, 2019, at 12:03 PM, Peter Coghlan via cctalk 
 wrote:
> 
> 
> About two hours ago, I received an email to the address I only use for
> cctech/cctalk.
> 
> It claimed my email account had been hacked and threatened all sorts of
> dire consequences if I didn't deposit $1000 in bitcoins in some place 
within
> 48 hours.
> 
> I am 100% certain that the claims in the message are completely bogus and
> none of the threats will be carried out.
> 
> It is likely that email addresses belonging to other list members are also
> to be found wherever my email address was scraped from so I just wanted to
> warn other list members about this scam in case they receive similar 
emails.
> 
> (I received the scam email directly, not via the cctech listserver).
> 
> Regards,
> Peter Coghlan.

Pdp1 for mister fpga

[Kevin Lee via cctalk]

https://github.com/MiSTer-devel/FPG1_MiSTer

Emulates pdp1 crt paper tape.

Real fun.

RE: Scanned paperback book "RSX A User's Guide"

[Kevin Lee via cctalk]

Thanks for this great contribution.. it really gives me a heads up 
To rsx that I might need in the coming months.

Cheers


-Original Message-
From: cctech  On Behalf Of Al Kossow via cctech
Sent: Wednesday, 18 April 2018 19:05
To: cct...@classiccmp.org
Subject: Re: Scanned paperback book "RSX A User's Guide"



On 4/16/18 7:54 PM, Mark Matlock via cctech wrote:

>I’d like to make it available online

it is online now

http://bitsavers.org/pdf/dec/pdp11/rsx11/Pieper_RSX_A_Guide_For_Users_1987.pdf