[fpc-devel] Re: On a port of Free Pascal to the IBM 370

Paul Robinson paul at paul-robinson.us
Sat Jan 21 20:12:26 CET 2012


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Sven Barth wrote (quoting me):


>> That (PASCALMAIN) will have to change, the object file format for 370 machines limits a CSECT to 8 characters, with the 
>> optional characters @ # and $.  So I might call it MAIN or possibly #MAIN.  (On the PDP/11, most operating systems (RT-11, 
>> RSTS/E, RSX) defined the main program in any language as ".MAIN." )
>
> If I understand you correctly, then you might confuse label names with section names.

No, I know exactly what I mean.  Label and section names are under the same rules in an assembler program on the 370, and a CSECT in 370 Assembly language

THENAME    CSECT

 is equivalent to

Procedure THENAME;
(* in Pascal *)

       SUBROUTINE THENAME
C       in Fortran

000010 PROCEDURE DIVISION.
000020 PROGRAM-ID.  THENAME.
000030*  In Cobol


int thename(void) {
/* In C */
}Excepting, of course, for the brain-dead moronic behavior of assigning case-sensitivity to identifiers in C.

Paul

The Lessons of history teach us - if they teach us anything - that no one learns the lessons that history teaches us.

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