From mboxrd@z Thu Jan 1 00:00:00 1970 From: imp@bsdimp.com (Warner Losh) Date: Fri, 19 May 2017 18:21:01 -0600 Subject: [TUHS] Unix with TCP/IP for small PDP-11s In-Reply-To: References: <20170519151518.8800D18C09D@mercury.lcs.mit.edu> <014301d2d0d2$b2b8f0e0$182ad2a0$@ronnatalie.com> Message-ID: https://ia601901.us.archive.org/10/items/bitsavers_decpdp11ulLTRIX112.0SPDSep84_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. Warner On Fri, May 19, 2017 at 6:15 PM, Warner Losh 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 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. >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: