Bob Supnik wrote:
> I finally published the paper on the UC15 design; find it here -
> http://simh.trailing-edge.com/docs/TheDesignoftheSimulatedPDP1576.pdf
Thank you, I will examine this for hints.
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On 2018-07-18 10:46, Angelo Papenhoff wrote:
On 18/07/18, Johnny Billquist wrote:
Really? The KA10 itself predates the Unibus. I guess it's possible they
added the ability to hook up Unibuses later in the life of the machine,
but the KI would have been around at that point as well, so a bit
surp
> On Jul 18, 2018, at 7:37 AM, Lars Brinkhoff wrote:
>
> Mark Pizzolato wrote:
>> Given that what you've got is one way with only the PDP11's memory
>> being accessed and no interrupts it would seem that a KA10 with a set
>> of PDP10 Unibus(s), with each connected directly to a different PDP11
Mark Pizzolato wrote:
> Given that what you've got is one way with only the PDP11's memory
> being accessed and no interrupts it would seem that a KA10 with a set
> of PDP10 Unibus(s), with each connected directly to a different PDP11
> system, you could model this pretty easily.
I will probably h
The UC15 is an 11/05 with part of its address space mapped into PDP15
memory, and a small amount private. It allows bidirectional writes.
There is also a control link, basically two parallel interfaces tied
together.
The key difference with the Rubin 10-11 is that the PDP15 does not
access PD
On 18/07/18, Johnny Billquist wrote:
> Really? The KA10 itself predates the Unibus. I guess it's possible they
> added the ability to hook up Unibuses later in the life of the machine,
> but the KI would have been around at that point as well, so a bit
> surprising that they'd do anything with t
Johnny Billquist wrote:
> Really? The KA10 itself predates the Unibus. I guess it's possible
> they added the ability to hook up Unibuses later in the life [...]
It's quite obvious if you read the ITS source code. The "classic four"
(I just invented that) ITS machines were three KA10s and one KL1
> From: Johnny Billquist
> Date: Wed, 18 Jul 2018 01:23:37 +0200
> On 2018-07-17 14:01, Lars Brinkhoff wrote:
>> The ITS restoration team is getting ready to hook up eight (simulated)
>> Unibuses to a (SIMH) PDP-10. The MIT AI KA10 machine really did this,
>> and we want some of the application
On 2018-07-17 14:01, Lars Brinkhoff wrote:
Hello,
The ITS restoration team is getting ready to hook up eight (simulated)
Unibuses to a (SIMH) PDP-10. The MIT AI KA10 machine really did this,
and we want some of the applications that used these capabilities.
Really? The KA10 itself predates th
Timothe Litt wrote:
> The DEC version of this is the DL10 - at least for the KA/KI. Also
> supported on the KLs with external memory/IO buses.
I wasn't going to mention it, but I now have an excuse to say the MIT MC
KL10 had two PDP-11 attached, one through DL10 and the other through
DTE20.
But t
On 7/17/18 2:44 PM, Timothe Litt wrote:
> The DEC version of this is the DL10 - at least for the KA/KI. Also supported
> on the
> KLs with external memory/IO buses. This provides a Unibus to PDP-10 memory
> window. IIRC, up to 4 Unibuses/DL10. Either side could write -10 memory.
> The
> D
> Unibus number 7: Unknown PDP-11 model with 8K and a Chaosnet interface.
Correction: 11/10, and two Chaosnet interfaces.
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On 17-Jul-18 16:29, Lars Brinkhoff wrote:
>
> It's mostly used to allow direct access to PDP-11 main memory.
>
> Maybe a longer explanation is in order.
>
> The MIT AI PDP-10 had a special device attached called the Rubin 10-11
> interface. It allowed connecting up to eight PDP-11s. The interfac
Mark Pizzolato wrote:
>> It's mostly used to allow direct access to PDP-11 main memory.
> Mostly??? What else besides memory access?
First, we don't know everything yet. It's not exactly documented. I
expect details to reveal themselves as we progress.
I believe it could also be used to access
On Tuesday, July 17, 2018 at 1:30 PM, Lars Brinkhoff wrote:
> Mark Pizzolato wrote:
> > Lars Brinkhoff wrote:
> >> The ITS restoration team is getting ready to hook up eight
> >> (simulated) Unibuses to a (SIMH) PDP-10. The MIT AI KA10 machine
> >> really did this, and we want some of the applicat
Mark Pizzolato wrote:
> Lars Brinkhoff wrote:
>> The ITS restoration team is getting ready to hook up eight
>> (simulated) Unibuses to a (SIMH) PDP-10. The MIT AI KA10 machine
>> really did this, and we want some of the applications that used these
>> capabilities.
>
> TMXR is the simh library whi
On Tuesday, July 17, 2018 at 5:01 AM, Lars Brinkhoff wrote:
> The ITS restoration team is getting ready to hook up eight (simulated)
> Unibuses
> to a (SIMH) PDP-10. The MIT AI KA10 machine really did this, and we want
> some of the applications that used these capabilities.
>
> We'd like some g
Hello,
The ITS restoration team is getting ready to hook up eight (simulated)
Unibuses to a (SIMH) PDP-10. The MIT AI KA10 machine really did this,
and we want some of the applications that used these capabilities.
We'd like some guidance on the best way to do this in the SIMH
framework. Since
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