8 Mar
2024
8 Mar
'24
6:54 a.m.
Marc is correct. All of ISC C compilers were based
on Bell Labs C compilers, starting with a C compiler
for the DEC VAX machine in 1978.
Heinz
On 3/7/2024 4:30 PM, Marc Rochkind wrote:
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.)
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.
Marc
On Thu, Mar 7, 2024 at 5:15 PM Charles H Sauer (he/him)
<sauer(a)technologists.com> wrote:
On 3/7/2024 5:52 PM, Warner Losh wrote:
On Thu, Mar 7, 2024 at 4:24 PM Warner Losh <imp(a)bsdimp.com
<mailto:imp@bsdimp.com>> wrote:
On Thu, Mar 7, 2024, 4:14 PM Tom Lyon <pugs78(a)gmail.com
<mailto:pugs78@gmail.com>> wrote:
For no good reason, I've been wondering about the early
history
of C compilers that were not derived from
Ritchie,
Johnson, and
Snyder at Bell. Especially for x86.
Anyone have tales?
Were any of those compilers ever used to port UNIX?
MIT had several that were used for ka9q and at least the
Venix x86
port. They supported the popular micros of
the time. Various
versions of them survive to the present day.
It's at bitsavers:
https://bitsavers.org/bits/MIT/pc-ip/8086_C_19850820.tar
<https://bitsavers.org/bits/MIT/pc-ip/8086_C_19850820.tar>
and
https://bitsavers.org/bits/MIT/trix/MIT_Compiler_Tape/
<https://bitsavers.org/bits/MIT/trix/MIT_Compiler_Tape/>
are pointers to compilers from the early 80s. Obviously not ANSI-C
compilers :)
Warner
See, also,
https://www.program-transformation.org/Transform/CCompilerHistory.html
&
http://www.desmet-c.com/.
When I only had PC/IX on an XT at my office and a PCjr at home, I
mostly
worked with C at home with DeSmet. I still have a couple of 5.25"
360K
diskettes labeled C-Ware, which I think are DeSmet 2.4.
Charlie
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