Re: Procedure with multiple fields computed

[Barbara Morris <bmorris@xxxxxxxxxx>]

Jeff Crosby wrote:
>
> I have converted a couple of programs to free-format C-specs ("FFT").
> One of the op codes not supported in FFT is the CALL opcode.  The
> suggestion in the manual and elsewhere is to convert these to
> procedures.
>

You don't have to convert your programs to procedures.  You just have to
use a prototype to call the program.  (The manual says "Use the CALLP
operation code".  CALLP stands for "call with prototype", not "call a
procedure").

This CALL/PARM code:

C         CALL   'MYPGM'
C         PARM               P1     10
C         PARM               P2      5 2

becomes this prototype/callp code:

D MYPGM        PR            EXTPGM('MYPGM')
D   p1                10a
D   p2                 5p 2
/free
      mypgm (p1 : p2);
or
      callp mypgm(p1 : p2);