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 (Contains links to field and bit definitions)

#### 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 V5R2.0. Last updated on 12 Apr 2006 at 16:55:29 EDT.
Copyright IBM Corporation, 1990, 2005