Library /sys$common/syshlp/HELPLIB.HLB
RMS, RMS Control Block Macros, $XABSUM
 *Conan The Librarian 

    The $XABSUM macro allocates and initializes a XABSUM. No value is
    returned for this assembly-time operation.

    Format

      $XABSUM  NXT=next-xab-address
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