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<div class="moz-cite-prefix">On 5/2/25 11:15 AM, Clem Cole wrote:<br>
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cite="mid:CAC20D2MQqSLvWe=vWXTfWj74Po6eAhnULQ1GLSf5p59qjUfs8w@mail.gmail.com">
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style="font-family:arial,helvetica,sans-serif">Thank you, Tom,
for the definitive answers to much of this. I remembered that
the Z8000 was mixed up in that mess, but it was missing from
Al's Trix tape. Do you know if a Z8000 back end or set of
support tools was ever built, and if so, does anyone know if
they survived? It does look like Al has 8086 [Terman
compiler]. 68K (of a few flavors) and an NS16032 (author's
unknown). One of the tools you mentioned from MIT seems to
have survived, although Dennis and I saved the official UNIX
Circuit Design System release in the mid-1990s. Warren has had
that TUHS archives ever since, but I'm not I ever saw you
tools other than things like you 68K assembler, and I guess is
was our fiiend Wayne that wrote the linker (which until this
thread I did not now). </div>
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style="font-family:arial,helvetica,sans-serif">BTW: Again, it
proves how interwoven the people and tech (i.e., open source
culture) were in the 1970s; i.e., it's not a new thing. The
PDPs were running the Stanford Circuit Design System (SUDS)
and the 11's often at USCD. The people came and went. For
instance,the former Wayne was a year ahead of me at CMU before
he headed to MIT for a Master's and PhD,</div>
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<p>I'm pretty sure a Z8000 back end was produced because I remember
that we built at least one Z8000 board. One of the LCS progress
reports mentions that Zenith had committed to build some Z8000
systems, back when "office automation" was a thing. However, I
have no idea what happened to the tools.</p>
<p>I don't remember anyone but Chris producing back ends, but it's
possible someone else did the NS16032. But I don't remember
anything else about the NS16000 systems.</p>
<p>The tools Chris and others produced in support of the Mead/Conway
LSI course were also widely distributed, but I'm not sure what the
mechanism. Since those were completely unencumbered by Unix, there
was probably less formality, but I expect the MIT license was
included.<br>
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