Upstate Medical Center in Syracuse had a number of PDP-15s, including
XVMs. Some are still be in the hands of a private collector. However,
that person is unwilling to share materials, particularly software kits,
from his collection.
If the RP disks follow normal SimH practice, then they are simulated as
data files, without metadata. A PDP-10 RP would have blocks of 128 x
36bit words, each word right justified in a 64b container; a PDP-15 RP
would have blocks of 256 x 18bit words, each right justified in a 32b
container. For interchange, the two simulators would have to adapt a
common container size. Alternately, the disk could be buffered in
memory, and the format adjusted at attach (as is done with DECtapes).
/Bob
On 5/5/2016 6:01 AM, [email protected] wrote:
Message: 5 Date: Tue, 15 Mar 2016 20:10:59 -0400 From: Richard
Cornwell <[email protected]> To: [email protected] Subject:
Re: [Simh] The lost disk of the PDP-15 Message-ID:
<20160315201059.25711d9a@hobbit> Content-Type: text/plain;
charset=US-ASCII I suspect this might also be to the limited number of
XVM15 systems that were actually sold. I used one at Syracuse
University in the early 80's. We had the PDP11 and it talked to the
RK05 disk drive. I was told that there was only about 20 XVM systems
sold. We did not have any RP drives on the system. My KA10 simulator
supports RP01/RP02/RP03 disks, do you think there might be a need to
exchange disks between a PDP10 and a PDP15? If so we should probably
use a common format. When I add RP06 support for the KI10 version I
will make sure it is compatible with the KS10 sim so that packs can be
interchanged. We probably could add support for the RP03 to RSX, DOS
and Adss, since we have source. Rich
>
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