From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter@rulingia.com (Peter Jeremy) Date: Wed, 28 Dec 2016 18:14:22 +1100 Subject: [TUHS] merry christmas In-Reply-To: References: <20161225031637.GF12180@mcvoy.com> Message-ID: <20161228071422.GA30016@server.rulingia.com> On 2016-Dec-25 17:21:31 -0500, Steve Nickolas wrote: >On Mon, 26 Dec 2016, Nick Downing wrote: >> I became frustrated with the limitations of both UZI and NOS and decided to >> port 2.11BSD to the cash register as the next step, my goal was (a) make it >> cross compile from Linux to PDP-11, (b) check it can build an identical >> release tape through cross compilation, (c) port it to Z80 using my >> existing cross compiler. > >A Z180 is powerful enough to run 2.11BSD? o.o; I suspect shoe-horning 2.11BSD onto a Z180 would be difficult - 2.11BSD on a PDP-11 requires split I+D and has kernel and userland in separate address spaces. Even with that, keeping the non-overlay part of the kernel in 64KB is difficult. Equivalent Z180 code is going to be much larger than PDP-11 code. I'd be happy to be proved wrong. -- Peter Jeremy -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 949 bytes Desc: not available URL: