The NGLOBAL statement names variables that all the subprocedures in a CLIST can use. The following subprocedure (ABC) defines variables A, B, and C and uses the NGLOBAL statement to make them available to other subprocedures in the CLIST:

ABC: PROC 0                 /* In subprocedure ABC,
NGLOBAL A,B,C               /* define NGLOBAL variables
SET A = apples
SET B = bananas
SET C = cantaloup
SYSCALL XYZ                 /* call subprocedure XYZ
END

XYZ: PROC 0                 /* In subprocedure XYZ,
WRITE Mix &A, &B, and &C    /* use the NGLOBAL variables
END