I think you're probably right, but I have had some experience
that maybe indicates otherwise. Possibly.
When I was working on my extended mode FTP server, I used a string instruction (MOVLJ) to move some data between sections. Since I was moving a rather large 256KW buffer, it made sense to do this instead of sitting in an ILDB/IDPB loop (assuming I couldn't win big with an XBLT). The eventual goal was to do some automatic nice things by using a translate table to compute parity via an MOVST with different size bytes.
It worked fine under KLH10 yet when I ran it on a Toad, it blew
up. What I mean is that parts of the address space got
destroyed. For days I couldn't figure it out. Finally, I signed
on to a real KL and executed the same code, which worked. This
indicated a bug in the XKL firmware, which R. Gorin acknowledge.
Had it not worked on the KL, the problem would have been in either
the KLH10 micro-engine or my code.
Perhaps this is the exception that proves the rule?
I agree that it would be nice to confirm that this works in real hardware, but I also find it unlikely that it wouldn't.
While DEC was not perfect, I would expect that they actually had tested this before releasing the software.
Johnny
On 2022-01-31 01:51, R. Voorhorst wrote:
@Dave:
It would only be worth the time and energy to prove if current Decnet11MP in
combination with KG11 would work in a Dup to Dup or Dmc connection, which in
hardware take a serious effort.
In virtual reality it is far more easy to arrange such things.
Unless I cannot find a bug quickly enough, then it could be helpful to
request you to check on it.
Thanks though for the time being.
Reindert
-----Original Message-----
From: Dave McGuire [mailto:mcguire@neurotica.com]
Sent: Sunday, 30 January, 2022 18:25
To: The Hobbyist DECnet mailing list <hecnet@lists.dfupdate.se>
Subject: [HECnet] Re: KG11 emulation probably defective -->diagnostic ZKGAB0
for KG11 runs without complaints.
On 1/30/22 12:21 PM, Mark Pizzolato - Info Comm wrote:
On Sunday, January 30, 2022 at 5:34 AM, Reindert wrote:good.
The diagnostics in XXDP for KG11 completes without problems, so far, so
KG11.It limits the scope to interface problems between Decnet11MP and Simh
it is doing precisely and then go back and see if the diagnostic is doing
We really don't know how robust the diagnostic is and if it exercises
the same details that are used by the DDCMP implementation.
You could run the DDCMP case with KG11 debugging enabled and identify what
the same stuff...
I have a KG11-A board; if it would be helpful, I can install it in a
PDP-11 at LSSM perhaps this week.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
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