The Raise a Floating-Point Base to an Unsigned Longword Integer
    Exponent routines raise a floating-point base to an unsigned
    longword integer exponent.

    Format

      OTS$POWRLU  floating-point-base ,unsigned-lword-int-exponent

      OTS$POWDLU  floating-point-base ,unsigned-lword-int-exponent

      OTS$POWGLU  floating-point-base ,unsigned-lword-int-exponent

      OTS$POWSLU  floating-point-base ,unsigned-lword-int-exponent

      OTS$POWTLU  floating-point-base ,unsigned-lword-int-exponent

      OTS$POWHLU_R3  floating-point-base ,unsigned-lword-int-exponent

                     (VAX only)