[TUHS] pcc in 8th edition
clemc at ccc.com
Mon Apr 26 03:11:25 AEST 2021
yes i'll mail under separate cover a scan
On Sun, Apr 25, 2021 at 11:47 AM Paul Ruizendaal <pnr at planet.nl> wrote:
> By now found some more clues, in particular this link:
> Apparently I am talking about PCC and PCC2 in the below question.
> The first post mentions 4 papers. They can be found online, apart from the
> USENIX one:
> "Four Generations of Portable C Compiler" by D.M. Kristol (1986 Summer
> USENIX Conference Proceedings)
> Anybody have that?
> The second post mentions official documentation:
> "In porting QCC, a useful text is the "Portable C Compiler -
> Version 2 (PCC2) Internals". It includes documentation of
> stin file formats, PCC2 tree forms, debugging flags, and
> compiler #defines. The manual is expensive so it's worth it
> most if you buy it before you figure it all out doing a
> port. Since the manual is based on PCC2 (and hasn't been
> updated), it's a good starting point, but doesn't have the
> latest information.”
> Anybody have that? (It is not on bitsavers)
> > On 25 Apr 2021, at 14:49, arnold at skeeve.com wrote:
> > Not an answer to your questions, but you may want to take a look
> > at the PCC Revived project. It lives in CVS, but I have a git mirror at
> > git://github.com/arnoldrobbins/pcc-revived
> > HTH,
> > Arnold
> > Paul Ruizendaal <pnr at planet.nl> wrote:
> >> For clarity and ease of reference:
> >> - The “Tour of paper” is for instance here:
> http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.48.3512 <
> >> - A machine description for the VAX that matches with that paper is for
> instance in the SysIII source:
> >> - The new style description in 8th edition is here:
> https://www.tuhs.org/cgi-bin/utree.pl?file=V8/usr/src/cmd/ccom/vax/stin <
> >> - The program that translates the “stin” file to a “table.c” file is
> >> ====
> >> Sometimes one thing leads to another.
> >> Following the recent mention of some retro-brew 68K single board
> systems, I decided to build a CB030 board (in progress). I figure it is a
> rough proxy for a 1980 VAX and would allow for some experimentation with
> the 32V / SysIII / 8th edition code.
> >> My first thought was to use the M68K compiler that is included with the
> Blit sources (see THUS Archive for this), as I had used that before to
> explore some of the Blit source. That compiler is LP32, not ILP32 - which
> may be a source of trouble. Just changing the SZINT parameter yielded some
> issues, so I started looking at the PCC source.
> >> This source does not have a “table.c” in the well known format as
> described in the “A tour of the portable C compiler” paper. Instead it uses
> a file “stin” which appears to be in a more compact format and is
> translated into a “table.c” file by a new pre-processor ("sty.y”). Then
> looking at the VAX compilers for 8th and 10th edition, these too use this
> “stin” file.
> >> All the other m68K compilers (based on pcc) that I found appear to
> derive from the V7/32V/SysIII lineage, not from the 8th edition lineage.
> >> A quick google did not yield much background or documentation on the
> STY format.
> >> Anybody on this list that can shed some light on the history of the STY
> table and on how to use it? Any surviving reports or memos that would be
> >> Many thanks in advance
> >> Paul
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