28 Dec
2016
28 Dec
'16
1:14 p.m.
On 2016-Dec-25 17:21:31 -0500, Steve Nickolas <usotsuki(a)buric.co> wrote:
On Mon, 26 Dec 2016, Nick Downing wrote:
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
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;