[Simh] Project update:

[Johnny Billquist]

(Being the other Johnny here, but anyway...)

What Bygg appear to be doing is implementing ANF-10 (or at least the 
simulated physical links over which ANF-10 can communicate).

Now, ANF-10 was a network protocol used on some machines way back. I 
mostly used it on TOPS-10, but I don't know if some other systems also 
supported it. I'm also not entirely sure what physical links were used 
in real life, but it appears Bygg have started to get connectivity up 
between simulated machines all running ANF-10.

Ethernet barely existed when I used ANF-10, so I don't know if that is 
existing code, or if Bygg is also implementing ANF-10 over new physical 
links here.

Anyway, getting an ANF-10 network up and running is pretty fun.

	Johnny

On 2016-01-05 02:39, Eric Smith wrote:
> Johnny,
>
> If it's not too much trouble, would you mind going into a little more
> detail for the "noobs" following along out here?
>
> I'm not _100%_ ignorant .. I was a UNIX admin for 15 years, I have a
> real VAX (3900) in the garage and fooled around with VMS on it.  I've
> had VMS running in cluster mode across SIMH instances.
>
> I've used DOS at great lengths and can write software in many
> languages including C, Pascal, and just about any assembler.  In fact,
> on machine language - once you "get it", I think you can write code
> for any CPU out there; all you need is the instruction set.  I've done
> it on quite a few different CPUs, including setting the bits via front
> panel switches and hitting "STORE" (or its equivalent) for the various
> instructions (eg HP1000).  I've used assembly to write device drivers.
>
> I've even designed my own ISA and tried (not given up yet) to
> implement it in TTL (74F series).
>
> My point here is you don't have to start from scratch describing what
> a computer is.  I know this is for a PDP-10.  But the closest I ever
> came to a PDP-10 was at the other end of a 300 baud acoustically
> coupled modem.  Gee .. those were the days ..
>
> Anyway, while probably 90% of the folks on here know what you are on
> about (or maybe 100% minus me) .. I have no idea.  Looks interesting
> though.
>
> Could you please explain what this is all about??
>
>
>
>> On Jan 4, 2016, at 10:59 AM, Johnny Eriksson <bygg at cafax.se> wrote:
>>
>> Status update for my little hobby project:
>>
>> I just gave the following command:
>>
>>     .net/a/t
>>     [ANF10 network: connected to VENUS(10), located at VENUS(10), 3 nodes]
>>     Node    ODEN    (1)     10, 4
>>     Node    LOKE    (4)     1
>>     Node    VENUS   (10)    1
>>
>> This might look innocent, but:
>>
>> Nodes 1 and 4 are KL10 systems, running on klh-10, with ANF-10 over
>> ethernet.  Node 10 is a KS10, running on a simh instance, using the
>> KMC/DUP combo.  Yet they speak to each other... for some value of
>> the word "speak".
>>
>> The translator (anftunnel) is not yet stable, but this looks like
>> it might even work.  Lots of code missing etc.  I will keep you
>> updated.
>>
>> --Johnny
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-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol