Unix for 8080/Z80? [Re: WooHoo!! PC/XT Unix anyone?]

From: Richard Erlacher <edick_at_idcomm.com>
Date: Sun Jan 24 10:48:57 1999

Well . . . CP/M "looked a lot like" the old OS/8, yet it wasn't. I guess
it depends on what your goal is. With the CP/M, it was having a console
protocol which was already understood by any unemployed DEC programmer so
they could be put to work on the 8-bit micros. Because it was already a
defined quantity, it didn't have to be too thoroughly documented, either.

I don't know about OS-9. I never saw it on a 6809 though I did see it
running on a 68008, which is quite a bit more processor. It didn't look
too much like *NIX either.l

Dick

----------
> From: Allison J Parent <allisonp_at_world.std.com>
> To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
> Subject: Re: Unix for 8080/Z80? [Re: WooHoo!! PC/XT Unix anyone?]
> Date: Saturday, January 23, 1999 9:43 PM
>
>
> <This notion of cooking up or breathing new life into an old 8-bit model
to
> <run *NIX is probably a mite more than has been considered for one
reason.
> <*NIX tends to want to use virtual memory, without which many systems
would
> <quickly choke. The old CPM-capables don't support VM. A good reason
for
> <this is probably the lack of performance.
>
> Unix didn't always have the idea of virtual memory. See Minix for an
> example of that also V4 and maybe V5 unix didn't either.
>
> Also It's been done! UZI uses the total swaping model, IE: processes are

> swaped out of core to make room for others.
>
> Allison
Received on Sun Jan 24 1999 - 10:48:57 GMT