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Marc is correct. All of ISC C compilers were based<br>
on Bell Labs C compilers, starting with a C compiler<br>
for the DEC VAX machine in 1978.<br>
<br>
Heinz<br>
<br>
<div class="moz-cite-prefix">On 3/7/2024 4:30 PM, Marc Rochkind
wrote:<br>
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cite="mid:CAOkr1zWuTvEEj4i8FZQEE2cH9vcQJPLvEdt8kP7a=199fb29AQ@mail.gmail.com">
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<div dir="ltr">Larry & Dave, thanks for jogging my memory. I'm
pretty sure it was BDS C on that z80 Zenith computer. (See my
longer post above.)
<div><br>
</div>
<div>I should add that around 1984 I got a copy of PC/IX for the
IBM XT, directly from Interactive Systems in Santa Monica,
where I knew a few people. That was true UNIX, System III, I
think, and I used it for all of the examples for my book
"Advanced UNIX Programming," which came out in 1985. It, of
course, had a real Bell Labs C compiler.<br>
<div><br>
</div>
<div>Marc</div>
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</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Mar 7, 2024 at 5:15 PM
Charles H Sauer (he/him) <<a
href="mailto:sauer@technologists.com" moz-do-not-send="true"
class="moz-txt-link-freetext">sauer@technologists.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On
3/7/2024 5:52 PM, Warner Losh wrote:<br>
> <br>
> <br>
> On Thu, Mar 7, 2024 at 4:24 PM Warner Losh <<a
href="mailto:imp@bsdimp.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">imp@bsdimp.com</a>
<br>
> <mailto:<a href="mailto:imp@bsdimp.com"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">imp@bsdimp.com</a>>>
wrote:<br>
> <br>
> <br>
> <br>
> On Thu, Mar 7, 2024, 4:14 PM Tom Lyon <<a
href="mailto:pugs78@gmail.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">pugs78@gmail.com</a><br>
> <mailto:<a href="mailto:pugs78@gmail.com"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">pugs78@gmail.com</a>>>
wrote:<br>
> <br>
> For no good reason, I've been wondering about the
early history<br>
> of C compilers that were not derived from
Ritchie, Johnson, and<br>
> Snyder at Bell. Especially for x86. Anyone have
tales?<br>
> Were any of those compilers ever used to port
UNIX?<br>
> <br>
> <br>
> MIT had several that were used for ka9q and at least
the Venix x86<br>
> port. They supported the popular micros of the time.
Various<br>
> versions of them survive to the present day.<br>
> <br>
> <br>
> It's at bitsavers:<br>
> <br>
> <a
href="https://bitsavers.org/bits/MIT/pc-ip/8086_C_19850820.tar"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://bitsavers.org/bits/MIT/pc-ip/8086_C_19850820.tar</a>
<br>
> <<a
href="https://bitsavers.org/bits/MIT/pc-ip/8086_C_19850820.tar"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://bitsavers.org/bits/MIT/pc-ip/8086_C_19850820.tar</a>><br>
> and<br>
> <a
href="https://bitsavers.org/bits/MIT/trix/MIT_Compiler_Tape/"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://bitsavers.org/bits/MIT/trix/MIT_Compiler_Tape/</a>
<br>
> <<a
href="https://bitsavers.org/bits/MIT/trix/MIT_Compiler_Tape/"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://bitsavers.org/bits/MIT/trix/MIT_Compiler_Tape/</a>><br>
> <br>
> are pointers to compilers from the early 80s. Obviously
not ANSI-C <br>
> compilers :)<br>
> <br>
> Warner<br>
<br>
See, also, <br>
<a
href="https://www.program-transformation.org/Transform/CCompilerHistory.html"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.program-transformation.org/Transform/CCompilerHistory.html</a>
& <br>
<a href="http://www.desmet-c.com/" rel="noreferrer"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">http://www.desmet-c.com/</a>.<br>
<br>
When I only had PC/IX on an XT at my office and a PCjr at
home, I mostly <br>
worked with C at home with DeSmet. I still have a couple of
5.25" 360K <br>
diskettes labeled C-Ware, which I think are DeSmet 2.4.<br>
<br>
Charlie<br>
<br>
-- <br>
voice: +1.512.784.7526 e-mail: <a
href="mailto:sauer@technologists.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">sauer@technologists.com</a><br>
fax: +1.512.346.5240 Web: <a
href="https://technologists.com/sauer/Facebook/Google/LinkedIn/Twitter"
rel="noreferrer" target="_blank" moz-do-not-send="true">https://technologists.com/sauer/<br>
Facebook/Google/LinkedIn/Twitter</a>: CharlesHSauer<br>
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<div><br>
</div>
<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">
<div><i>My new email address is <a
href="mailto:mrochkind@gmail.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">mrochkind@gmail.com</a></i></div>
</div>
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