FTXBK

Prolog  

Control Block Contents  
   FTXBK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

FTXBK Prolog

 Name       : HCPFTXBK
 Description: Frame Table Extent Block
 DSECT      : FTXBK
 Function   : Contain Frame Table scan range addresses
 Created by : HCPIFTIX
 Deleted by : NA
 Located by : RSAFTXFL and RSAFTXFG in HCPRSMBK
 Serialized : RSAFTXLK
 Notes      : The RSMBK contains 2 FTXBks, one for <2G and one for >2G.
              In a system with nothing >2G, there will still be this
              FTXBK.  In order to indicate that an FTXBK is not
              actually describing anything, a bogus value will be
              used in FTXSTART and in FTXEND.  Any bogus value will
              do.  Zero is the chosen bogus value.

FTXBK Control Block Content

FTXBK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      FTXBK          Frame Table Extent Block
0000    0 Address      4 FTXNEXT        Next FTXBK address
0004    4 Address      4 FTXPREV        Previous FTXBK address
0008    8 Address      8 FTXSTART       Host logical address of FRMTE at
                                        which to start frame table scan
                                        for this extent
0010   16 Address      8 FTXEND         Host logical address of FRMTE at
                                        which to end frame table scan for
                                        this extent
0018   24 Address      8 *              Reserved for IBM use
          00000004       FTXSIZE        (*-FTXBK+7)/8 FTXBK size in
                                        doublewords

FTXBK Storage Layout

          
*** FTXBK - Frame Table Extent Block
*
*     +---------------------------+---------------------------+
*   0 |         FTXNEXT           |         FTXPREV           |
*     +---------------------------+---------------------------+
*   8 |                       FTXSTART                        |
*     +-------------------------------------------------------+
*  10 |                        FTXEND                         |
*     +-------------------------------------------------------+
*  18 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  20
*
*** FTXBK - Frame Table Extent Block

FTXBK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
FTXEND         0010
FTXNEXT        0000
FTXPREV        0004
FTXSIZE        0018 00000004
FTXSTART       0008