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

CTF

Prolog
Control Block Contents
CTF DSECT
Storage Layout
Cross Reference

CTF Prolog

 NAME       : HCPFCWDS
 DESCRIPTION: DASD Count, Key and Data field layout
 DSECT      : CTF
 

CTF Control Block Content

CTF DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      CTF            DASD Count, Key and Data field
                                        layout
0000    0 Signed       2 CTFCC          Cylinder number
0002    2 Signed       2 CTFHH          Head number
0004    4 Signed       1 CTFR           Record number
0005    5 Signed       1 CTFKL          Key length
0006    6 Signed       2 CTFDL          Data length
          00000008       CTFLEN         *-CTF
 

CTF Storage Layout

          
*** CTF - DASD Count, Key and Data field layout
*
*     +-------------+-------------+------+------+-------------+
*   0 |   CTFCC     |   CTFHH     |CTFR  |CTFKL |   CTFDL     |
*     +-------------+-------------+------+------+-------------+
*   8
*
*** CTF - DASD Count, Key and Data field layout
 

CTF Cross Reference

Symbol         Dspl Value
-------------- ---- -----
CTFCC          0000
CTFDL          0006
CTFHH          0002
CTFKL          0005
CTFLEN         0006 00000008
CTFR           0004
This information is based on z/VM V3R1.0.
Last updated on 29 Mar 2001 at 15:44:13 EDT.
Copyright IBM Corporation, 1990, 2001