The format of the CATALOG and CAMLST macros is:

>>-+-------+--CATALOG--list_addrx------------------------------><
   '-label-'                        

>>-listname--CAMLST--+-CAT-------+--,name_relexp---------------->
                     '-+-------+-'                 
                       '-CATBX-'                   

>--,vol_list_relexp--+--------------------------+--------------><
                     '-,DSCBTTR=dscb_ttr_relexp-'   

list_addrx

Points to the parameter list (labeled listname) set up by the CAMLST macro instruction.

CAT or CATBX

Code this operand as shown. Either CAT or CATBX can be coded.

name_relexp

Specifies the virtual storage location of the fully-qualified name of a data set. The name cannot exceed 44 characters. If the name is less than 44 characters, it must be followed by at least one blank. In a DFSMShsm environment, if the data set name is less than 44 characters, it must be padded with blanks until the 44-character length is reached.

vol list_relexp

Specifies the virtual storage location of an area that contains a volume list. The list must begin on a halfword boundary and consist of an entry for each volume on which the data set is stored. The first two bytes of the list indicate the number of entries in the volume list; the number cannot be zero. Each 12-byte volume list entry consists of a 4-byte device code, a 6-byte volume serial number, and a 2-byte data set sequence number. The sequence number is always zero for direct access volumes.

DSCBTTR=dscb ttr_relexp

Specifies the virtual storage location of the 3-byte relative track address (TTR) of the data set control block (DSCB). This DSCB is on the first or only volume of the data set. The address is relative to the beginning of the volume.