🚀 go-pugleaf

Shmuel (Seymour J.) Metz (nospam@gsg.eds.com) wrote:
: You may be able to find the
: layout of the ISPF data in the ISPF manuals, but I doubt it.

In OS/390 V1R3.0 ISPF Dialog Developer's Guide and Reference, topic
"C.2.4", I see: 

[------------------------- Begin IBM Documentation ----------------------]
 C.2.4  ISPF Statistics Entry in a PDS Directory

   The following is the format of the information that ISPF writes to the PDS
   directory to maintain statistics for a member.  If you suspect the
   statistics data has been corrupted, you can compare the existing entry
   against these formats to help in problem determination.

   Byte     Description and Format

   1        Version number, in hexadecimal format.  Value is between X'01'
            and X'99'.

   2        Modification level, in hexadecimal format.  Value is between
            X'00' and X'99'.

   3        Flags:

            Bit 1    SLCM indicator.  SCLM uses this to determine whether the
                     member and any related SCLM information are still in
                     sync.
                     o   ON means the member was last edited by SCLM, the PDF
                         Software Configuration and Library Manager.

                     o   OFF means the member was somehow processed outside
                         SCLM.

            Bit 2-8  Reserved for future ISPF use.

   4        The seconds portion of the time last modified, in packed decimal
            format.

   5-8      Creation date:

            Byte 5    Reserved for future ISPF use.
            Byte 6-8  Julian date, in packed decimal format

   9-12     Date last modified:

            Byte 9     Reserved for future IBM use
            Byte 10-12 Julian date, in packed decimal format

   13-14    Time last modified, in packed format:

            Byte 13  Hours, in packed decimal format
            Byte 14  Minutes, in packed decimal format

   15-16    Current number of lines, in hexadecimal format

   17-18    Initial number of lines, in hexadecimal format

   19-20    Number of modified lines, in hexadecimal format

   21-27    Userid, in character format

   28-30    Reserved for future ISPF use
[-------------------------- End IBM Documentation -----------------------]

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