IBM: IJJHFMT1

Programming Interface Information: This information is NOT intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only.

IJJHFMT1

Prolog

Control Block Contents

IJJHFMT1 DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

IJJHFMT1 Prolog
 Name       : IJJHFMT1
 Description: Format 1 Label
 DSECT      : IJJHFMT1
 Function   : IJJHFMT1 describes the fields within the Format
              1 VTOC label and is used in the CMS/DOS
              environment. IJJHFMT1 is called by the IJJHFMT1
              macro.

IJJHFMT1 Control Block Content


IJJHFMT1 DSECT
Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IJJHFMT1       Format 1 Label
0000    0 Character   44 F1DSN          FILE ID
002C   44 Character    1 F1ID           FORMAT1 ID - X'F1'
002D   45 Character    6 F1SER          FILE SERIAL NUMBER
0033   51 Character    2 F1VSEQ         VOLUME SEQUENCE NUMBER
0035   53 Character    3 F1CRDTE        FILE CREATION DATE (YDD)
0038   56 Character    3 F1EXPDT        FILE EXPIRATION DATE (YDD)
003B   59 Bitstring    1 F1EXCNT        NUM EXTENTS FOR FILE ON VOLUME
003C   60 Character    1 F1D7           UNUSED BY DOS/VS (X'40')
003D   61 Character    1 F1D8           RESERVED (X'40')
003E   62 Character   13 F1SYSCOD       DOS/370 VER 4
004B   75 Character    3 F1D10          RESERVED (X'40')
004E   78 Character    4 F1CISIZE       CONTROL INTERVAL SIZE (FBA)
                                        NUMBER OF BLOCKS
0052   82 Character    2 F1FTYPE        TYPE OF FILE ORGANIZATION
0054   84 Character    1 F1D12          UNUSED BY DOS/VS (X'00')
0055   85 Character    1 F1OPT          ISAM OPTION CODES
0056   86 Character    2 F1BLK          ISAM BLOCK LENGTH
0058   88 Character    2 F1RECL         ISAM LRECL
005A   90 Character    1 F1KEYL         ISAM KEY LENGTH
005B   91 Character    2 F1RKP          ISAM KEY POSITION
005D   93 Bitstring    1 F1DSI          DATA SET INDICATORS
          1... ....      F1LVOL         X'80' LAST VOL IND
          ..1. ....      F1BL8          X'20' BLOCK MUL 8 (OS/VS)
          ...1 ....      F1SEC          X'10' PASSWORD PROTECTION
          .... .1..      F1WPW          X'04' WRITE PASSWORD ONLY
005E   94 Character    4 F1SECAL (0)    UNUSED BY DOS/VS (X'40')
005E   94 Bitstring    1 F1SECOPT       SECONDARY ALLOCATION OPTION
005F   95 Address      3 F1SECALL       SECONDARY ALLOCATION VALUE
0062   98 Character    5 F1LRP          UNUSED BY DOS/VS (X'00')
0067  103 Character    2 F1D21          RESERVED (X'40')
          00000069       F1EXTS         * EXTENTS
0069  105 Character    1 F1EXTYP        EXTENT TYPE
006A  106 Character    1 F1EXSEQ        EXTENT SEQUENCE NUMBER
006B  107 Character    4 F1START        LOWER CCHH
006F  111 Character    4 F1END          UPPER CCHH
0073  115 Character   20 *              ADDITIONAL EXTENTS
0087  135 Character    5 F1POINT (0)    FORMAT 3 OR 2 POINTER
0087  135 Bitstring    1 F1HIORD        ZERO FOR FBA
0088  136 Signed       4 F1PNT          RELATIVE RECORD NUMBER FOR FBA
0090  144 Dbl-Word     8 * (0)
          00000090       F1LEN          *-IJJHFMT1 LENGTH
          00000012       F1DWDS         (*-IJJHFMT1)/8 DOUBLEWORDS

IJJHFMT1 Storage Layout

*** IJJHFMT1 - Format 1 Label
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                        F1DSN                          =
*     |                           +------+--------------------+
*  28 |                           |F1ID  |      F1SER-        |
*     +--------------------+------+------+--------------------+
*  30 |      -(02D)        |   F1VSEQ    |      F1CRDTE       |
*     +--------------------+------+------+------+-------------+
*  38 |      F1EXPDT       |:XCNT |F1D7  |F1D8  |             |
*     +--------------------+------+------+------+             |
*     |                       F1SYSCOD                        |
*     |                    +--------------------+-------------+
*  48 |                    |       F1D10        | F1CISIZE-   |
*     +-------------+------+------+------+------+-------------+
*  50 |   -(04E)    |  F1FTYPE    |F1D12 |F1OPT |   F1BLK     |
*     +-------------+------+------+------+------+------+------+
*  58 |   F1RECL    |F1KEYL|   F1RKP     |F1DSI |:ECOPT|(05F)-|
*     +-------------+------+-------------+------+------+------+
*  60 | -F1SECALL   |              F1LRP               |F1D21-|
*     +------+------+------+---------------------------+------+
*  68 |-(067)|:XTYP |:XSEQ |         F1START           |(06F)-|
*     +------+------+------+---------------------------+------+
*  70 |      -F1END        |//////////////////////////////////|
*     +--------------------+//////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     |////////////////////////////////////////////////+------+
*  80 |////////////////////////////////////////////////|:IORD |
*     +---------------------------+--------------------+------+
*  88 |          F1PNT            |///////////////////////////|
*     +---------------------------+---------------------------+
*  90
*
*** IJJHFMT1 - Format 1 Label