Thanks, I had not seen that. More info about UNIX on UNIVAC than I'd seen before. Who did the C compiler for that? On Thu, Mar 7, 2024 at 5:49 PM segaloco via TUHS wrote: > Tom you mentioned non-Bell compilers, but also x86, so I can't resist > pointing out: https://www.bell-labs.com/usr/dmr/www/otherports/newp.pdf > > Among the handful of systems experimented with in these Bell Labs UNIX > porting experiences is the 8086 which was being used for some sort of > internal project at the time. I'm not aware of any artifacts (UNIX nor C) > from that port, nor if any 32-bit and beyond x86 compiler technology out > there derives from any of these efforts, but worth mentioning in the > history of C touching Intel platforms. I do seem to recall some discussion > here a while back that implied that the SGS suite may have had its genesis > in some of these efforts. The internal Bell Labs version of Release 5.0 > has SGS compilers for several BellMAC targets that I think descend from > some of this work. I'd have to go looking for proof though so consider > that anecdotal for now. > > - Matt G. > > > On Thursday, March 7th, 2024 at 4:54 PM, Heinz Lycklama heinz@osta.com > wrote: > > 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@technologists.com wrote: > > On 3/7/2024 5:52 PM, Warner Losh wrote: > > On Thu, Mar 7, 2024 at 4:24 PM Warner Losh mailto:imp@bsdimp.com > wrote: > > On Thu, Mar 7, 2024, 4:14 PM Tom Lyon 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 > > -- > voice: +1.512.784.7526 e-mail: sauer@technologists.com > fax: +1.512.346.5240 Web: > https://technologists.com/sauer/Facebook/Google/LinkedIn/Twitter: > CharlesHSauer > > -- > My new email address is mrochkind@gmail.com > >