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 V4R2.0. Last updated on 17 Oct 2001 at 14:24:58 EDT.
Copyright IBM Corporation, 1990, 2001