[TUHS] Zilog Z80 Unix

Jason Stevens jsteve at superglobalmegacorp.com
Thu Apr 20 12:54:12 AEST 2017

Maybe it was UZI?


I know it's been around..

On April 20, 2017 9:42:42 AM GMT+08:00, "Erik E. Fair" <fair-tuhs at netbsd.org> wrote:
>I have a memory of having seen a Zilog Z-80 (not Z8002 like the Onyx)
>based Unix, possibly v6, at a vendor show or conference - perhaps the
>West Coast Computer Faire (WCCF) in the late 1970s or early 1980s.
>I recall asking the people in the booth how they managed without an
>MMU, and don't recall their answer. I do remember thinking that since
>Unix had "grown up" with MMUs to stomp on obvious pointer mistakes, the
>software ought to be relatively well-behaved ... you know: not trying
>to play "core war" with itself?
>I searched the TUHS archives cursorily with Google to see if this has
>been previously mentioned, but pretty much all Z80 CPU references have
>for its use in "smart" I/O devices back in the day.
>Does anyone else remember this Z80 Unix and who did it? Or maybe that
>it was a clone of some kind ... ?
>	looking for a little history,
>	Erik Fair

Sent from my Android device with K-9 Mail. Please excuse my brevity.
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