VMS Help RTL Routines, LIB$, LIB$CRC_TABLE, Arguments  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 polynomial-coefficient

    OpenVMS usage:mask_longword
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    A bit mask indicating which polynomial coefficients are to be
    generated by LIB$CRC_TABLE. The polynomial-coefficient argument
    is the address of an unsigned longword integer containing this
    bit mask.

 crc-table

    OpenVMS usage:vector_longword_signed
    type:         longword integer (signed)
    access:       write only
    mechanism:    by reference, array reference
    The 16-longword table that LIB$CRC_TABLE produces. The crc-table
    argument is the address of a signed longword integer containing
    the table.