On OpenVMS VAX systems, the Extended Multiply and Integerize
    routine (H-Floating-Point Values) allows higher-level language
    users to perform accurate range reduction of H-floating
    arguments.

    This routine is not available to native OpenVMS Alpha programs
    but is available to translated VAX images.

    Format

      LIB$EMODH  floating-point-multiplier ,multiplier-extension

                 ,floating-point-multiplicand ,integer-portion

                 ,fractional-portion