KCC - C compiler

[larsbrinkhoff]

C;
KCC;
KCC.SY;
SYSENG; C INSERT
.INFO.; CC RECENT
EMACS1; C 1

C programs are linked with STINKR, see #418.

[larsbrinkhoff]

https://www.youtube.com/watch?v=zF-vy8b4r-Y&t=25s

[larsbrinkhoff]

@eswenson1 Does KCC work in your ES-ITS? I get this:

*:c;cc -c hello c
hello:
ILOPR; 42>>-25,,757253   757253/   104,,154

HELLO C is just int main() { return 0; }

[eswenson1]

`ES>:c;cc -c hello c
hello:

3: INVALID CHARACTER
3: INVALID CHARACTER
3: INVALID CHARACTER
3: INVALID CHARACTER
Can't Find 'c'.

:KILL EMACS◊J
ES>:c;cc -c hello

1: TITLE IS NOT A TYPE
2: HELLO: INVALID INITIALIZER TYPE
2: SYNTAX ERROR. PARSE SO FAR: <decl_specifiers>
<init_declarator_list> _ 10. . INSRT C ;
5: I GIVE UP

:KILL EMACS◊J
ES>`

[larsbrinkhoff]

I have now tested to copy several different sest of files to C, KCC, and KCC.SY. In all cases, C; TS CC fails to run. The failures are ILOPR or MPV, so I don't have much information to debug this.

I suspect there's a file missing in some other directory.

[larsbrinkhoff]

Trying to make progress...

If I set a breakpoint at ZMAIN+212, I see a call to ZEXECP. If I try to $^N that call, I get an error message:

Unrecognized Phase Option: ^@
Unable to execute phase ^?^A^A^A^B
ILOPR

[larsbrinkhoff]

An xfile like this can relieve some pain:

:job kcc
:load c; ts cc
:cwd lars
:jcl -c test
zmain+212$b
$g

[larsbrinkhoff]

Got it to work by combining AI: C; and MC: C; just like "Loki" said. I had to remove the DIR.LIST file though, because it overwrote some files with GFR links.

Tank you, @mattwyrm!

[larsbrinkhoff]

Four versions of the C; [CLIB] library are needed. STINKER is linked against version 9. The binaries for the -C and -M compiler phases are linked against 11. The -LP phase is linked against 14. And the latest version is 16.

[larsbrinkhoff]

Testing can be done like this. First create a file called TEST C with e.g.

#include <c/stdio.h>
int main ()
{
  puts ("hello\n");
  return 0;
}

Compile it with :c;cc -c test. Assemble the output with :midas test midas.

To link it, create another file called C STINKR with

X C/LIB
L TEST
O TS.TEST

and run :stinkr c to get a ts test.

[larsbrinkhoff]

Oh, and it doesn't work in SIMH!

[eswenson1]

So we don't have source for kcc?

[larsbrinkhoff]

There are a few files that I think are part of the C library. I don't know if it's a complete set.

• C; C10JOB C
• C; C10STD C
• KCC; HUBMIO 1
• KCC; HUMBLE 37
• KCC; READ 1041
• KCC; URT 1018

But I haven't seen anything at all for the compiler itself. But there are complete sources for a few TOPS-20 versions.

[larsbrinkhoff]

It seems we are missing source for C; C10SAV and both source and binary for C10BYT, C10CHS, C10EVL, C10FNM, C10IO, C10MIO, C10SRY. The only trace are links to backup tapes.

[larsbrinkhoff]

To clarify: The files in the C directory aren't KCC, but Alan Snyder's C compiler. See #539.