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* [pups] 2.11BSD networking on simulator
       [not found] <3A7BD55D.B64B221B@bigfoot.com>
@ 2001-02-03 21:10 ` Per Andersson
  0 siblings, 0 replies; 2+ messages in thread
From: Per Andersson @ 2001-02-03 21:10 UTC (permalink / raw)




On Sat, 3 Feb 2001, Richard Donkin wrote:

> "Steven M. Schultz" wrote:
> ...
> >         I use BSD/OS myself, but FreeBSD works very nicely also.  I've not
> >         tried it with linux.
>
> Could you let me know the FreeBSD and Begemot P11 versions you were
> using? (Anyone
> else who has a working combination, feel free to jump in!)

This might not be state-of-the-art (but thats not the point anyway), I'm
running p11 version 2.5 on an FreeBSD 3.4 machine and it works ok, the main
problem I have found is that after a while the clock starts to run slow,
at the momement it thinks it's christmas eve (after beeing up about 130 days).


	/Per Andersson



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Date: Sat, 3 Feb 2001 17:23:08 -0500 (EST)
From: Bill Gunshannon <bill@cs.scranton.edu>
To: pups at minnie.cs.adfa.edu.au
Subject: Re: [pups] 2.11BSD networking on simulator
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On Sat, 3 Feb 2001, Per Andersson wrote:

> 
> This might not be state-of-the-art (but thats not the point anyway), I'm
> running p11 version 2.5 on an FreeBSD 3.4 machine and it works ok, the main

Where can I find this Begemot P11 Emulator??  I visited the Begemot site
but the link to products doesn't appear to work.  I have tried E11 (demo
version) and the Supnil Emulator, but have never heard of this one til now.

bill

-- 
Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
bill at cs.scranton.edu     |  and a sheep voting on what's for dinner.
University of Scranton   |
Scranton, Pennsylvania   |         #include <std.disclaimer.h>   


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To: Per Andersson <pa at cdg.chalmers.se>
Cc: Richard Donkin <rdonkin at bigfoot.com>, pups at minnie.cs.adfa.edu.au
From: Robin Birch <robin@ruffnready.co.uk>
Subject: Re: [pups] 2.11BSD networking on simulator
References: <3A7BD55D.B64B221B at bigfoot.com>
 <Pine.GSO.4.32.0102032157010.4898-100000 at wilfer4.cdg.chalmers.se>
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In message <Pine.GSO.4.32.0102032157010.4898-100000 at wilfer4.cdg.chalmers
.se>, Per Andersson <pa at cdg.chalmers.se> writes
>
>
>On Sat, 3 Feb 2001, Richard Donkin wrote:
>
>> "Steven M. Schultz" wrote:
>> ...
>> >         I use BSD/OS myself, but FreeBSD works very nicely also.  I've not
>> >         tried it with linux.
>>
>> Could you let me know the FreeBSD and Begemot P11 versions you were
>> using? (Anyone
>> else who has a working combination, feel free to jump in!)
>
>This might not be state-of-the-art (but thats not the point anyway), I'm
>running p11 version 2.5 on an FreeBSD 3.4 machine and it works ok, the main
>problem I have found is that after a while the clock starts to run slow,
>at the momement it thinks it's christmas eve (after beeing up about 130 days).
>
>
>       /Per Andersson
>
>
Hi,
Harti Brandt, the guy who wrote this package is shortly (I hope :-))
going to release a new version that includes a clock patch that Steve
Schultz dreamt up.  

Regards

Robin

Currently running P11 on linux
____________________________________________________________________
Robin Birch     robin at ruffnready.co.uk

M1ASU/2E0ARJ/M5ABD     Old computers and radios always welcome

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Date: Sat, 3 Feb 2001 23:47:06 +0000
To: Bill Gunshannon <bill at cs.scranton.edu>
Cc: pups at minnie.cs.adfa.edu.au
From: Robin Birch <robin@ruffnready.co.uk>
Subject: Re: [pups] 2.11BSD networking on simulator
References: <Pine.GSO.4.32.0102032157010.4898-100000 at wilfer4.cdg.chalmers.se>
 <Pine.LNX.4.10.10102031721020.6311-100000 at triangle.cs.uofs.edu>
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In message <Pine.LNX.4.10.10102031721020.6311-100000 at triangle.cs.uofs.ed
u>, Bill Gunshannon <bill at cs.scranton.edu> writes
>On Sat, 3 Feb 2001, Per Andersson wrote:
>
>> 
>> This might not be state-of-the-art (but thats not the point anyway), I'm
>> running p11 version 2.5 on an FreeBSD 3.4 machine and it works ok, the main
>
>Where can I find this Begemot P11 Emulator??  I visited the Begemot site
>but the link to products doesn't appear to work.  I have tried E11 (demo
>version) and the Supnil Emulator, but have never heard of this one til now.
>
>bill
>
There is an oldish version on the pups archive.  I believe that harti is
going to release a newer version soon.

regards

Robin
____________________________________________________________________
Robin Birch     robin at ruffnready.co.uk

M1ASU/2E0ARJ/M5ABD     Old computers and radios always welcome

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Date: Sat, 3 Feb 2001 16:03:00 -0800 (PST)
From: "Steven M. Schultz" <sms@moe.2bsd.com>
Message-Id: <200102040003.f14030W16555 at moe.2bsd.com>
To: pups at minnie.cs.adfa.edu.au
Subject: Re: [pups] 2.11BSD networking on simulator
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Hi -

> From: Per Andersson <pa at cdg.chalmers.se>
> 
> This might not be state-of-the-art (but thats not the point anyway), I'm
> running p11 version 2.5 on an FreeBSD 3.4 machine and it works ok, the main
> problem I have found is that after a while the clock starts to run slow,
> at the momement it thinks it's christmas eve (after beeing up about 130 days).

	The bug is an arithmetic overflow in the clock computations.  After
	about 24 days (with 60Hz power in the US) the number of ticks the
	virtual machine has been up overflows 32 bits and time behaves very
	strange.

	Apply the patch below to 'device.c' and the problem goes away - it did
	for me.

	Steven Schultz
	sms at moe.2bsd.com

--- device.c.dist	Sat Mar  4 00:03:28 2000
+++ device.c	Fri Sep 29 23:59:10 2000
@@ -203,6 +203,7 @@
 	int secs;
 	int newrate, diff;
 	int newdir;
+	double dnow, dstart;
 
 	for(t = timeouts; t < &timeouts[ntimeouts]; t++)
 		if(t->time && --t->curr == 0) {
@@ -223,9 +224,9 @@
 	 * to the number we have elapsed
 	 */
 	gettimeofday(&tv, NULL);
-	secs = ((1000 * tv.tv_sec + tv.tv_usec/1000)
-	     - (1000 * timer.start.tv_sec + timer.start.tv_usec/1000))
-	     / 1000;
+	dstart = 1000.0 * timer.start.tv_sec + timer.start.tv_usec/1000.0;
+	dnow = 1000.0 * tv.tv_sec + tv.tv_usec/1000.0;
+	secs = (dnow - dstart) / 1000.0;
 
 	newrate = 1000000 / clock_rate;
 

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Date: Sat, 03 Feb 2001 18:50:25 -0600
To: pups at minnie.cs.adfa.edu.au
From: Jay Jaeger <cube1@home.com>
Subject: [pups] V6 and PDP-11/34
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I *have* *run* the standard Unix V6 distribution on my PDP 11/34.  Works 
just fine.

I also compared my V6 distribution image with the one on PUPS (years ago) 
and they matched just fine.

Load the pack from the RK05 image after the 100 (IIRC) block tape to disk 
loader program [how you get it there is another issue, of course...  8-)], 
boot up, type rkunix at the "@" and away you go.

I did not use the tape to disk program on the tape image, however -- I 
didn't have a tape drive at the time IIRC.  I have a standalone program 
that used a parallel port on my PC and a DR11 on my PDP-11 to write it, 
IIRC, but I might have used XMODEM and a serial port -- its been a lonnnng 
time since I did it.

Jay Jaeger


Date: Wed, 31 Jan 2001 09:13:30 +1100 (EST)
From: Warren Toomey <pups@minnie.cs.adfa.edu.au>
Subject: Re: [pups] A bootable disk image for a PDP-11/34?

In article by Carl Lowenstein:
 > Just from the historical point of view, note that the first major
 > file on a genuine 6th Edition distribution tape _is_ a bootable
 > RK05 image.  Something like 4000 blocks.
 >
 >     carl

Yes, but it doesn't boot on an 11/34 :(
That's the problem.

Cheers,
	Warren
---	
Jay R. Jaeger					The Computer Collection
cube1 at home.com			visit http://members.home.net/thecomputercollection


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Date: Sat, 3 Feb 2001 22:39:28 -0800 (PST)
From: "Steven M. Schultz" <sms@moe.2bsd.com>
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To: pups at minnie.cs.adfa.edu.au
Subject: Re: [pups] 2.11BSD networking on simulator
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Hi -

> From: Richard Donkin <rdonkin at bigfoot.com>
> Could you let me know the FreeBSD and Begemot P11 versions you were
> using? (Anyone else who has a working combination, feel free to jump in!)
	
	Gosh, it was quite a while ago that I tried P11 on a FreeBSD system.
	It was pre-4.0 as I remember - perhaps 3.5 or 3.6

> Thanks very much for the config file, that should make life a lot
> easier... And

	Quite welcome!   Getting rid of the M4 macros and distilling the
	config file down to the basics makes it much easier to see what
	is going on.   Coming up with that first config file was a day
	or so of fun ;)

> thanks for all your efforts in updating 2.11BSD - very impressive to get
> a full fledged BSD system on a PDP-11!

	You're welcome - it's been a lot of fun over the years.  The past
	couple years development has slowed down, combination of too many
	other projects and not a lot of room left to stuff new features in ;)

	Steven Schultz
	sms at moe.2bsd.com



^ permalink raw reply	[flat|nested] 2+ messages in thread

* [pups] 2.11BSD networking on simulator
@ 2001-01-31 22:28 Richard Donkin
  0 siblings, 0 replies; 2+ messages in thread
From: Richard Donkin @ 2001-01-31 22:28 UTC (permalink / raw)


I'm running 2.11BSD on the Supnik simulator, and wondering how to get it
networked.  
This sim seems to only support serial lines, so maybe I have to move
over to the 
Begemot simulator - in which case, is it best to use FreeBSD or Linux as
the host
for the sim?  I'm more familiar with Linux but I have FreeBSD running
now - the question
is what's easier to set up for networking.

Does anyone have a working Begemot sim setup with networking, used with
2.11BSD?  If so,
could you post your config files?  The Begemot sim seems a lot more
complex to set up
than Supnik.

Cheers,

Richard

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Date: Wed, 31 Jan 2001 22:42:02 +0000
From: Richard Donkin <rdonkin@bigfoot.com>
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I've tried the suggestions for getting files in and out of the Supnik
sim,
in particular using rl0 mapped to x.tar, and 'tar cvf /dev/rrl0a
/etc/hosts'.
However, tar complains: 'tar: tape write error: Read-only file system'.

The disklabel for rl0 looks like:\x1a\x1a

# /dev/rrl0a:
type: old DEC
disk: 
label: 
flags:
bytes/sector: 512
sectors/track: 20
tracks/cylinder: 2
sectors/cylinder: 40
cylinders: 0
rpm: 0
interleave: 0
trackskew: 0
cylinderskew: 0
headswitch: 0           # milliseconds
track-to-track seek: 0  # milliseconds
drivedata: 0 

1 partitions:
#        size   offset    fstype   [fsize bsize]
  a:    10240        0   2.11BSD     1024  1024         # (Cyl.    0 -
255)
cylinders/unit 0
Warning, revolutions/minute 0
boot block size 0
super block size 0
partition a: extends past end of unit 0 10240 0

Presumably I need to create a valid disklabel, but it would be good to
have some advice on what a valid one
would look like.

I've also tried the same sort of thing with 'tar cvbBf 20 /dev/rmt0
/etc/hosts', and 
something like a tar file is produced - however, GNU tar on Linux and
FreeBSD 4.2 tar can't
read this, saying 'this doesn't look like a tar file'.  Is there some
trick to getting this
to work, and am I better off using rl0 or rmt0? 

Richard

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From: Greg Lehey <grog@lemis.com>
To: Richard Donkin <rdonkin at bigfoot.com>
Cc: PUPS List <pups at minnie.cs.adfa.edu.au>
Subject: [pups] Re: 2.11BSD networking on simulator
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On Wednesday, 31 January 2001 at 22:28:44 +0000, Richard Donkin wrote:
> I'm running 2.11BSD on the Supnik simulator, and wondering how to
> get it networked.  This sim seems to only support serial lines, so
> maybe I have to move over to the Begemot simulator - in which case,
> is it best to use FreeBSD or Linux as the host for the sim?  I'm
> more familiar with Linux but I have FreeBSD running now - the
> question is what's easier to set up for networking.

The Begemot emulator was written on BSD, so you'll probably find it
easier to use under FreeBSD.

> Does anyone have a working Begemot sim setup with networking, used
> with 2.11BSD?  If so, could you post your config files?  The Begemot
> sim seems a lot more complex to set up than Supnik.

*sigh* I used to, and it worked well.  A number of changes in FreeBSD
have rendered the emulator non-functional, and I haven't had time to
find out what's wrong.  I'll take a look and see if I can see anything
obvious, but it might take me a while.

Greg
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Date: Wed, 31 Jan 2001 15:17:54 -0800 (PST)
From: "Steven M. Schultz" <sms@moe.2bsd.com>
Message-Id: <200101312317.f0VNHsd17441 at moe.2bsd.com>
To: pups at minnie.cs.adfa.edu.au
Subject: Re: [pups] 2.11BSD networking on simulator
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Hi -

> From: Richard Donkin <rdonkin at bigfoot.com>
> I'm running 2.11BSD on the Supnik simulator, and wondering how to get it
> networked.  

	It can not be done except perhaps with a SL/IP link.  The Supnik 
	simulator does not have an emulated ethernet device.

> Begemot simulator - in which case, is it best to use FreeBSD or Linux as
> the host

	I use BSD/OS myself, but FreeBSD works very nicely also.  I've not
	tried it with linux.

> Does anyone have a working Begemot sim setup with networking, used with
> 2.11BSD?  If so,

	Quite a few folks have it running.   

> could you post your config files?  The Begemot sim seems a lot more
> complex to set up than Supnik.
	
	Yes, it is quite a bit more complex (cryptic) to set up.

	Here's what I use to run P11 with.  If you strip out all of the
	macro preprocessing stuff the config file is much more readable and
	not nearly as cryptic as before.

	Steven Schultz
	sms at moe.2bsd.com

------------------
set clock_rate 60

ctrl rk 017777400 0220 5 4000
end

ctrl rl 017774400 0160 4 4000
end

ctrl rp 017776700 0254 5 4000
dev 0 ./2.11BSD  1999
dev 1 ./junk  1999
end

ctrl kl
dev 017777560  060  064 4 tty_net  -7 -t 10000
dev 017776500 0300 0304 4 tty_net  -7 -t 10001
end

ctrl mr 017777520 ./rp.boot
end

ctrl lp 017777514 0200 4
end

ctrl tm 017772520 0224 5
# dev 0 /tmp/foo
end

ctrl qna 017774440 5 0x08:0x00:0x2b:0x07:0x82:0x6c 0xf8:0x7a qna.rom
dev epp_tun tun0 0x08:0x00:0x2b:0x07:0x82:0x6c 0x08:0x00:0x2b:0x07:0x82:0x00
end

# The toy clock.
#
ctrl toy 017777526
end

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Date: Wed, 31 Jan 2001 20:37:29 -0500
From: Ken Wellsch <kwellsch@tampabay.rr.com>
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To: Carl Lowenstein <cdl at mpl.ucsd.edu>
CC: pups at minnie.cs.adfa.edu.au
Subject: Re: [pups] A bootable disk image for a PDP-11/34?
References: <200101302330.PAA29420 at chiton.ucsd.edu>
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Carl Lowenstein wrote:
> 
> > From wkt at henry.cs.adfa.edu.au Tue Jan 30 14:16 PST 2001
> >
> > Yes, but it doesn't boot on an 11/34 :(
> > That's the problem.
> 
> Why, said he wonderingly.  Is the 11/34 one of those machines that does
> not have a directly addressable PSW at 177776 so it must be done with
> MPTS and MFPS instructions?  Thats all I can think of immediately.
>
>	...

When I looked last night at the machine assist (mch.s) for Ultrix-11/3.1
source, all I could easily find was consistent with this, contained in
the V6 start document:

    The main difference between an 11/40 and an 11/45 (or 11/70)
    system is that in the former instruction restart after a
    segmentation violation caused by overflowing a user stack
    must be handled by software, while in the latter machines
    there is hardware help.

which in more detail means, if I understand right, there is no SSR2
register in the MMU so the kernel code needs to disassemble the
instruction to backup over it for restarting as per above.

The Ultrix mch.s file has code that does this (quite a lot) and I
noticed a few cases that checked it the cputype is 34.

Cheers,

-- Ken

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Date: Thu, 1 Feb 2001 08:59:30 +0000
Subject: Re: [pups] 2.11BSD networking on simulator
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I have the begemot simulator running very effectively on Linux, although I have
not used the emulated ethernet connection.  If anyone knows how to set this up
on linux then I would welcome some help.

I must say that although p11 takes quite a bit of setting up it is well worth
the trouble.

Regards

Robin



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From: Carl Lowenstein <cdl@mpl.ucsd.edu>
Message-Id: <200102011735.JAA05794 at chiton.ucsd.edu>
To: iking at microsoft.com
Subject: RE: [pups] A bootable disk image for a PDP-11/34?
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> From iking at microsoft.com Tue Jan 30 15:27 PST 2001
> From: Ian King <iking at microsoft.com>
> To: "'Ken Wellsch'" <kwellsch at tampabay.rr.com>,
>         Carl Lowenstein
> 	 <cdl at mpl.ucsd.edu>
> Cc: pups at minnie.cs.adfa.edu.au
> Subject: RE: [pups] A bootable disk image for a PDP-11/34?
> Date: Tue, 30 Jan 2001 14:38:15 -0800
> 
> Ken, I tried using that image and gunzip told me there was a crc error; it
> wouldn't unzip it.  (I downloaded it three times, just in case there was a
> transmission error -- twice by ftp, once by http.)  I've also tried the
> "Dennis" images, which are supposedly straight RK05 images; E11 won't boot
> 'em.  One issue on which I'm not clear: where is the boot address?  Stuff at
> loc 0 doesn't look like boot instructions.  
> 
> If I could get an image to run in an emulator (as I mentioned, I'm running
> E11 from DBit), I'd write some cheesy little loader to bring it down the
> serial line (I already have it sketched out); but until I can at least get
> one to boot in the emulator, I'm reluctant to spend the hours (at 9600 baud)
> to spray it onto a disk.  <sigh>  

Well, as some response to this challenge "get an image to run in an emulator",
I visited Bob Supnik's Computer History Simulation Project web page

	<www.tiac.net/users/mps/retro/>

and followed the links to the sources for SIMH v2.5a and to the Unix V6
disk images.

I read the documentation file "simh_doc.txt", and compiled the
simulator.  Then I read "simh_swre.txt", unpacked the V6 images, ran
the simulator and attached the three RK05 images to it, and booted
RK0.  All according to the instructions.

I got the bootstrap prompt "@" to which I typed "unix" and it came up
with a "login:" prompt, to which I could log in as root, and do things.

It's not quite the same V6 image that I remember from the olden days of
loading onto an 11/40 from magtape.  The login prompt seems not to be
";login:" as we still see on the Usenix magazine.  dmr's account seems
to have vanished but ken's is still there.  And that's how I spent a
few hours last night.

In case it matters, the underlying hardware/software platform is an AMD
K6-3 running Mandrake 7.1 Linux.

    carl

        carl lowenstein         marine physical lab     u.c. san diego
        {decvax|ucbvax} !ucsd!mpl!cdl                 cdl at mpl.ucsd.edu
                                                  clowenstein at ucsd.edu



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2001-02-03 21:10 ` [pups] 2.11BSD networking on simulator Per Andersson
2001-01-31 22:28 Richard Donkin

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