21 May
2017
21 May
'17
3:05 a.m.
On Sat, May 20, 2017 at 2:40 PM, Johnny Billquist <bqt(a)update.uu.se> wrote:
On 2017-05-20 20:18, Warner Losh wrote:
Only since '84 when I bought mine... They are both small memory boxes,
though, and something that can run in a 256kB machine should be able to run
on a 892kB machine... I have bits of mch.c/low.s from Venix that I can
leverage for the port to the Ultrix kernel to the 8088 that's inside the
Rainbow it would be running on.
Warner
On Sat, May 20, 2017 at 4:46 AM, Johnny Billquist <bqt(a)update.uu.se
<mailto:bqt@update.uu.se>> wrote:
On 2017-05-20 04:00, Warner Losh <imp(a)bsdimp.com
<mailto:imp@bsdimp.com>> wrote:
https://ia601901.us.archive.org/10/items/bitsavers_decpdp11u
lLTRIX112.0SPDSep84_870730/AE-X370C-TC_ULTRIX-11_2.0SPD_Sep84.pdf
<https://ia601901.us.archive.org/10/items/bitsavers_decpdp11
ulLTRIX112.0SPDSep84_870730/AE-X370C-TC_ULTRIX-11_2.0SPD_Sep84.pdf>
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.
Uh...? Where do you see that there is any TCP/IP support in
Ultrix-11? If any was done by someone else, there is no saying that
it would be usable on a machine without split I/D. To be honest,
I've never seen any mention of TCP/IP on any machine without split
I/D space. I guess it could be done, but it would be a rather big
headache...
I read the sources to see the TCP/IP support was there (that's the bit
about adding Berkeley Sockets). I see nowhere that it's excluded for the
non I/D machines, but haven't tried it first hand. I got interested not
because of the PDP-11, but because I have an old Rainbow that recently
started running Venix (v7-based version) and was trolling around for
some way to do TCP/IP to it (though w/o readily available ethernet
cards, I'm not sure it is a viable project).
You do know that the Rainbow is not a PDP-11, right?