3 Feb
2019
3 Feb
'19
11:11 p.m.
On 2019-02-03 22:42, Brian Hechinger wrote:
--
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
On Sun, Feb 3, 2019, 16:15 Johnny Billquist <bqt at
softjar.se
<mailto:bqt at softjar.se> wrote:
On 2019-02-03 22:02, Brian Hechinger wrote:
If the size of the device driver is anything to go on, then roughly
ranked from easiest:
RK11
TC11
RP11
RL11
Massbus in general I think can be done to work without too much
complexity. RK611 shouldn't be too bad, but do add a bit more stuff.
But I think pretty much anything except MSCP is roughly similar in
complexity for someone implementing it.
Johnny
What is the simplest PDP-11 CPU/peripheral design
that is capable of
running RSX-11, RSTS/E or BSD?
Define "simple" please. :-)
The easiest to implement with limited tools. Also, what is the minimum disk space needed to
install those
operating
systems? I have a plan. Probably not a good one
but I'll likely
learn a
lot in the the process so it won't be a waste
of time.
RSX-11M-PLUS can run from two RL02, if you just accept the pregen
system. But that's the smallest. If you want to build stuff, something
like an RK07 is required, and that is 28 Megs. But I think it's
recommended that you have two. But that probably is for more reasons
than just running the actual system (it is hard to do an update if you
are running on an RK07, and the update media is an RK07).
RSX-11M definitely gets away with less. RSTS/E would be similar, I
think, while BSD probably wants a little more.
Ok, that's what I needed to know (more ballpark than anything else is fine)
Thanks!!
-brian