On 4/15/2022 2:48 PM, Lee Gleason wrote:
I've been tinkering with a PDT-11/150 lately. It's a little
inconvenient to work on, since it doesn't have a simple way to
transfer files back and forth (KRTMIN doesn't work when transferring
files to the box, just from the box, for some reason I haven't been
able to puzzle out, and pasting text into a KED screen or a PIP
command usually overflows my terminal emulator).
It occurred to me that the first application terminal line on the
150 is at 176500,300, the same as the default for a TU58's DL11. It's
a very DL11 like interface, register wise. I'm wondering, if I could
hook up a TU58 emulator and use it to move data back and forth to the
150.
Has anyone had occasion to try this? Any advice on how to get it to
go would be appreciated, since I know very little about RT11.
--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.glea...@comcast.net
OK, replying to my own post here, on the off chance that there are
any other PDT-11 hobbyists out there. I gave this a try and it works
pretty well. The DD driver on the PDT-11/150 will talk to a TU58
emulator on Terminal 1 just fine (presumably, it would talk to a real
TU58 as well). It only works at 2400 baud, but, it's still pretty useful
for moving software on and off the box. With the "big" TU58 patch to the
DD driver, it's also possible to store lots of RT11 software or data
(65000 or so blocks worth) on a virtual TU58 and load from there, rather
than switching floppies. See
https://rsx11.blogspot.com/2022/05/pdt-11150-and-tu58.html for the long
boring story about figuring this out.
==
Lee K. Gleason N5ZMR
Control-G Consultants
lee.glea...@comcast.net
