How are data passed from JCL parm to assembler program. And
how is data passed from a calling program to an assembler
called program.

Answer Posted / mike m

- JCL PARM

//SAMPPROG EXEC PGM=XXXXXXXX,PARM='XXXXXXXX......'

CONTAINS A PARM FIELD WITH UP TO 100 BYTES OF DATA IN IT.
THE PROGRAM BY DESIGN PICKUPS UP A POINTER TO THE DATA AND
THE DATA LEN. REG 1 HAS WHAT YOU NEED TO EXTRAPOLATE ALL OF
THIS.

- PASS DATA TO CALLED PROGRAM

IN THIS CASE, CALLER IS AN ALC PROGRAM PASSING 2 FIELDS TO
SUBROUTINE NAMED SUBROUT1. THE PASSED FIELDS WILL HAVE BEEN
PRIMED PRIOR TO THE "CALL"

CALL SUBROUT1(FIELDA,FIELDB)
.
.
.
FIELDA DS CL8
FIELDB DS CL8

Is This Answer Correct ?    8 Yes 5 No



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