Yes, MRC did that by getting Tops-20 version 5 running on a KS10, which he said was possible with some amount of effort.
You'd have to hide symbols (that code exists in 4.2) and then modify all the .PSECT's to be in section zero. That would be a tedious amount of tinkering because DEC never finished relocatable .PSECT's and you've got to move everything around by hand. Then you have to remove any section specific instructions (XMOVEI, XHHLI, Etc.) and other such hackery.
It's been on my list of things to look at, but I want to put
ANF-10 (TSK:) into Tops-20 first as well as put MIT Chaos back in.
I admit that my Tops-10 knowledge is limited. But I very clearly remember MRC unofficially getting Phase IV running under TOPS-20 on a KS. This was work that was somehow supported/requested by DEC if I remember things. But it never became an official release.
MRC's comments were basically that he barely managed to get it running, with some limitations, and not much resources left for much else.
With Tops-10, like I said, I only ever used them with ANF-10 networks.
And yeah, I know that KS never officially supported ethernet. In theory the Unibus ethernet controllers should be possible to use, but I know that Jonny Eriksson (bygg) was working on that, and had things half working. I think I might even have seen the code, but it never was finished.
Johnny
On 2022-09-06 21:41, Robert Armstrong wrote:
> Johnny Billquist <bqt@softjar.se <mailto:bqt@softjar.se>> wrote:
>The -2020 will be tricky to get up on HECnet, though. As far as I
>remember/know, it only officially had Phase III. And you need to run
>TOPS-20 V4.
>
>Not sure if Tops-10 ever had DECnet on them, but if it did, I would
>suspect it's the same story there. The -2020s I ever used just ran
>Tops-10 with ANF-10.
Oh, come on - be serious... TOPS-10 had DECnet Phase-IV, both on the KL and the KS (2020) machines. There are even some such machines on HECnet today!!
$ set host venti
SIMH KS10 VENTI 7.04 NET 12:36:12 TTY10 system 4999
Connected to Node LEGATO Line # 0
AUTHORIZED USERS ONLY!
Please LOGIN
.net
[ANF10 network: connected to VENTI(20), located at VENTI(20), 3 nodes]
Node VENTI (20) SIMH KS10 VENTI 7.04 NET 18-Nov-21
Node TWONKY (37) TWONKY KS10 TOPS10 7.04 28-Nov-21
Node TWONK2 (40) TWONK2 KS10 TOPS10 7.04 28-Nov-21
[DECnet network: local node VENTI, 17 reachable nodes in area 2]
(2.99) (2.152) (2.153) (2.170) (2.199) A2RTR BOINGO GLDRTR HUSKY LEGATO
MASTIF REACH THEARK TOMMYT VENTI VENTI2 ZITI
.KJOB
.ini
SIMH KS10 VENTI 7.04 NET 12:36:21 TTY10 system 4999
Connected to Node LEGATO Line # 0
AUTHORIZED USERS ONLY!
Please LOGIN
.log 13,730
Job 14 SIMH KS10 VENTI 7.04 NET TTY0
Password:
[LGNLAS Last access to [13,730] succeeded on 6-Sep-122:07:27:46]
12:38 6-Sep-122 Tuesday
.set host mim
[Connected to RSX-11M+ system MIM::, using CTERM protocol]
[Type ^\,<RET> to return]
?NRTRMT Required message types not all supported
.
It even understands how to talk to other areas, although MIM doesn’t seem very friendly.
The 2020 machines never had Ethernet, at least not in any official capacity. Perhaps that’s what you are confused about? A 2020 only supported synchronous links and could only be an end node.
Bob
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