COMBUFF - 32-bit CP - V4R4.0

Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### COMBUFF

Prolog

Control Block Contents
COMBUFF DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### COMBUFF Prolog

     Name       : CSEPVMBK
     Description: Buffer between VM/CSE Comm V.M. and CP
     DSECT      : COMBUFF

#### COMBUFF Control Block Content

#### COMBUFF DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      COMBUFF        Buffer between VM/CSE Comm V.M.
                                            and CP
    0000    0 Character    1 COMINDEX       C*1 Index of a VM/ISF system
    0001    1 Character    1 COMFIL1        C*2 Unused
    0002    2 Character    2 COMNUM         Number of items in the buffer
              00000004       COMFXSZ        (*-COMBUFF) Size of the fixed
                                            area
    0004    4 Signed       4 COMITLN        Length of item
    0008    8 Dbl-Word     8 COMDAT (0)     The data
              00000008       COMHDSZ        (*-COMBUFF) Header size

#### COMBUFF Storage Layout

    *** COMBUFF - Buffer between VM/CSE Comm V.M. and CP
    *
    *     +------+------+-------------+---------------------------+
    *   0 |:INDEX|:FIL1 |   COMNUM    |         COMITLN           |
    *     +------+------+-------------+---------------------------+
    *
    *** COMBUFF - Buffer between VM/CSE Comm V.M. and CP

#### COMBUFF Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    COMDAT         0008
    COMFIL1        0001
    COMFXSZ        0002 00000004
    COMHDSZ        0008 00000008
    COMINDEX       0000
    COMITLN        0004
    COMNUM         0002

This information is based on z/VM V4R4.0. Last updated on 29 Jul 2003 at 15:10:08 EDT.
Copyright IBM Corporation, 1990, 2003