25 Apr
2021
25 Apr
'21
11:11 p.m.
yes i'll mail under separate cover a scan
ᐧ
On Sun, Apr 25, 2021 at 11:47 AM Paul Ruizendaal <pnr(a)planet.nl> wrote:
By now found some more clues, in particular this
link:
http://computer-programming-forum.com/47-c-language/fab825b2dce1aa59.htm
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)
Paul
On 25 Apr 2021, at 14:49, arnold(a)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(a)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 <
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:
https://www.tuhs.org/cgi-bin/utree.pl?file=SysIII/usr/src/cmd/cc/vax/pcc/ta…
<
https://www.tuhs.org/cgi-bin/utree.pl?file=SysIII/usr/src/cmd/cc/vax/pcc/ta…
>
> - 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 <
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
here:
https://www.tuhs.org/cgi-bin/utree.pl?file=V8/usr/src/cmd/ccom/common/sty.y
<
https://www.tuhs.org/cgi-bin/utree.pl?file=V8/usr/src/cmd/ccom/common/sty.y
>
>
> ====
>
> 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
useful?
>
> Many thanks in advance
>
> Paul
>