CHNDX | Back to Index page

| Prolog Control Block Contents CHNDX DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

CHNDX Prolog | Top of page

     NAME       : HCPCHNDX
     DESCRIPTION: CHANNEL INDEXING BLOCK
     DSECT      : CHNDX
     RELOCATION CONSIDERATIONS : None

CHNDX Control Block Content | Top of page

     CHNDX DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      CHNDX          CHANNEL INDEXING BLOCK
    0000    0 Signed       4 CHNDX0         INDEX ELEMENT FOR CHANNEL 0
    0004    4 Signed       4 CHNDX1         INDEX ELEMENT FOR CHANNEL 1
    0008    8 Signed       4 CHNDX2         INDEX ELEMENT FOR CHANNEL 2
    000C   12 Signed       4 CHNDX3         INDEX ELEMENT FOR CHANNEL 3
    0010   16 Signed       4 CHNDX4         INDEX ELEMENT FOR CHANNEL 4
    0014   20 Signed       4 CHNDX5         INDEX ELEMENT FOR CHANNEL 5
    0018   24 Signed       4 CHNDX6         INDEX ELEMENT FOR CHANNEL 6
    001C   28 Signed       4 CHNDX7         INDEX ELEMENT FOR CHANNEL 7
    0020   32 Signed       4 CHNDX8         INDEX ELEMENT FOR CHANNEL 8
    0024   36 Signed       4 CHNDX9         INDEX ELEMENT FOR CHANNEL 9
    0028   40 Signed       4 CHNDXA         INDEX ELEMENT FOR CHANNEL A
    002C   44 Signed       4 CHNDXB         INDEX ELEMENT FOR CHANNEL B
    0030   48 Signed       4 CHNDXC         INDEX ELEMENT FOR CHANNEL C
    0034   52 Signed       4 CHNDXD         INDEX ELEMENT FOR CHANNEL D
    0038   56 Signed       4 CHNDXE         INDEX ELEMENT FOR CHANNEL E
    003C   60 Signed       4 CHNDXF         INDEX ELEMENT FOR CHANNEL F
    0040   64 Dbl-Word     8 * (0)          ALIGNMENT
              00000008       CHNSIZE        (*-CHNDX+7)/8 SIZE OF CHANNEL
                                            REQUEST ELEMENTS

CHNDX Storage Layout | Top of page

    *** CHNDX - CHANNEL INDEXING BLOCK
    *
    *     +---------------------------+---------------------------+
    *   0 |          CHNDX0           |          CHNDX1           |
    *     +---------------------------+---------------------------+
    *   8 |          CHNDX2           |          CHNDX3           |
    *     +---------------------------+---------------------------+
    *  10 |          CHNDX4           |          CHNDX5           |
    *     +---------------------------+---------------------------+
    *  18 |          CHNDX6           |          CHNDX7           |
    *     +---------------------------+---------------------------+
    *  20 |          CHNDX8           |          CHNDX9           |
    *     +---------------------------+---------------------------+
    *  28 |          CHNDXA           |          CHNDXB           |
    *     +---------------------------+---------------------------+
    *  30 |          CHNDXC           |          CHNDXD           |
    *     +---------------------------+---------------------------+
    *  38 |          CHNDXE           |          CHNDXF           |
    *     +---------------------------+---------------------------+
    *  40
    *
    *** CHNDX - CHANNEL INDEXING BLOCK

CHNDX Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    CHNDXA         0028
    CHNDXB         002C
    CHNDXC         0030
    CHNDXD         0034
    CHNDXE         0038
    CHNDXF         003C
    CHNDX0         0000
    CHNDX1         0004
    CHNDX2         0008
    CHNDX3         000C
    CHNDX4         0010
    CHNDX5         0014
    CHNDX6         0018
    CHNDX7         001C
    CHNDX8         0020
    CHNDX9         0024
    CHNSIZE        0040 00000008

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:27:17 EDT.
Copyright IBM Corporation, 1990, 2020