struct_addr

    OpenVMS usage address
    type          quadword (unsigned)
    access        read only
    mechanism     by value
    The address in the system dump of the data structure to be
    formatted.

 options

    OpenVMS usage mask_longword
    type          longword (unsigned)
    access        read only
    mechanism     by value
    The following provides more information on options:

    Option                  Meaning

    None                    Uses structure type from the xxx$B_
                            TYPE and/or xxx$B_SUBTYPE field of the
                            structure. This is the default.
    SDA_OPT$M_FORMAT_TYPE   Uses the structure type given in struct_
                            prefix.
    SDA_OPT$M_FORMAT_       Indicates that struct_addr is a physical
    PHYSICAL                address instead of a virtual address.

 struct_prefix

    OpenVMS usage char_string
    type          character string
    access        read only
    mechanism     by reference
    Address of structure name string (zero-terminated).