ISTGLBAL—Declare and set macro global variables

Purpose

Use the ISTGLBAL macroinstruction when assembling an application program to allow the program to discover the characteristics of the VTAM® product associated with the macroinstruction definition library that contains ISTGLBAL.

Usage

Invoke ISTGLBAL by the IFGRPL and IFGACB macroinstructions as an inner macroinstruction.

The ISTGLBAL macroinstruction declares and sets two types of global variables:

GBLC variable, which indicates the release level of VTAM
GBLB variables, which provide a list of functions available for this release of VTAM.

To use the ISTGLBAL macroinstruction, you must be familiar with the GBLB, GBLC, SETB, and SETC assembler language instructions.

Instructions for coding the ISTGLBAL macroinstruction, with examples, are contained in ISTGLBAL macroinstruction.

Syntax


>>-+------+--ISTGLBAL------------------------------------------><
   '-name-'