From mboxrd@z Thu Jan 1 00:00:00 1970 From: random832@fastmail.com (Random832) Date: Sun, 21 May 2017 01:13:43 -0400 Subject: [TUHS] Unix with TCP/IP for small PDP-11s In-Reply-To: <8f3662bc-f4f9-74c3-d648-15969230eacc@update.uu.se> References: <8f3662bc-f4f9-74c3-d648-15969230eacc@update.uu.se> Message-ID: <1495343623.794127.983422680.4D5F43AD@webmail.messagingengine.com> On Sat, May 20, 2017, at 17:34, Johnny Billquist wrote: > That said, I suspect it is not that easy to move over, as this probably > ties very closely in to how the hardware works, and more specifically > the MMU. Thus, an 8088 have to do things rather differently than a > PDP-11. Also, x86 is totally "split I/D" by any relevant definition, and has a 20-bit physical address space.