Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
FTXBK
Control Block Contents
FTXBK DSECT
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
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