Creates a process-private or shareable logical name table.
    On Alpha and Integrity server systems, this service accepts 64-
    bit addresses.
    Format
      SYS$CRELNT  [attr] ,[resnam] ,[reslen] ,[quota]
                  ,[promsk] ,[tabnam] ,partab ,[acmode]
    C Prototype
      int sys$crelnt  (unsigned int *attr, void *resnam, unsigned
                      short int *reslen, unsigned int *quota,
                      unsigned short int *promsk, void *tabnam, void
                      *partab, unsigned char *acmode);
Additional Information:
explode
extract