31 Jan
2001
31 Jan
'01
10:28 p.m.
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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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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From Richard Donkin <rdonkin(a)bigfoot.com> Thu Feb
1 08:42:02 2001
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Date: Wed, 31 Jan 2001 22:42:02 +0000
From: Richard Donkin <rdonkin(a)bigfoot.com>
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To: PUPS List <pups(a)minnie.cs.adfa.edu.au>
Subject: [pups] File exchange with Supnik sim
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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:
# /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(a)lemis.com> Thu Feb 1
09:14:49 2001
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From: Greg Lehey <grog(a)lemis.com>
To: Richard Donkin <rdonkin(a)bigfoot.com>
Cc: PUPS List <pups(a)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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From "Steven M. Schultz"
<sms(a)moe.2bsd.com> Thu Feb 1 09:17:54 2001
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Date: Wed, 31 Jan 2001 15:17:54 -0800 (PST)
From: "Steven M. Schultz" <sms(a)moe.2bsd.com>
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To: pups(a)minnie.cs.adfa.edu.au
Subject: Re: [pups] 2.11BSD networking on simulator
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Hi -
From: Richard Donkin <rdonkin(a)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(a)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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From Ken Wellsch <kwellsch(a)tampabay.rr.com> Thu
Feb 1 11:37:29 2001
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From: Ken Wellsch <kwellsch(a)tampabay.rr.com>
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To: Carl Lowenstein <cdl(a)mpl.ucsd.edu>
CC: pups(a)minnie.cs.adfa.edu.au
Subject: Re: [pups] A bootable disk image for a PDP-11/34?
References: <200101302330.PAA29420(a)chiton.ucsd.edu>
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Carl Lowenstein wrote:
From wkt(a)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.
...