20 May
2017
20 May
'17
6:21 a.m.
https://ia601901.us.archive.org/10/items/bitsavers_decpdp11ulLTRIX112.0SPDS…
Looks like it requires MMU, but not split I/D space as it lists the
following as compatible: M11, 11/23+, 11/24, 11/34, 11/40 and 11/60. It
does require 256kb of memory. See table 2, page 6 for details.
Warner
On Fri, May 19, 2017 at 6:15 PM, Warner Losh <imp(a)bsdimp.com> wrote:
There's a copy of ultrix-11, which is v7 based
with some 4.1BSD additions,
including sockets and a TCP/IP stack. Don't know if it runs on the smaller
PDP-11, but it looks like it might. The sources are in the TUHS archives.
Seems like the best low-end v7ish kernel with TCP/IP around, but I've not
used it extensively.
Warner
On Fri, May 19, 2017 at 1:04 PM, Ron Natalie <ron(a)ronnatalie.com> wrote:
To my knowledge no. We had already gone to code
overlays on the 11/34’s
just to get the pre-TCP unix working. When we needed yet another segment
to map mbufs (which we could do on the 11/70), there just weren’t any
left. It was then that I scarfed up all the 11/23, 24, 34’s that were
available and turned them into routers.