SXEWK | Back to Index page |
Prolog Control Block Contents SXEWK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
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SXEWK Prolog | Top of page |
NAME : HCPSXEWK DESCRIPTION: Storage Extension Work Area DSECT : SXEWK FUNCTION : Contain information about a central storage extension CREATED BY : HCPPCQ DELETED BY : HCPPCQ LOCATED BY : SVGSXEWK in HCPPCQ SERIALIZED : SYSDSRLK RELOCATION CONSIDERATIONS : None COMMENTS : If the extension request can be completed within the unused area triggered by the IPL parameter STOR= being less than the configured storage size, then no hardware SERVC attach and assign operations will be needed. SXEHDST will be zero in order to indicate this case. If the extension request cannot be completed within the unused area triggered by the IPL parameter STOR= being less than the configured storage size, then hardware SERVC attach and assign operations will be needed. In this case, SXEHDST and SXEHDND will indicate the host absolute addresses to be processed. If SXEHDST and SXEHDND are non-zero, then the ending storage location, for hardware operations and for CP, will be SXEEND. In this case, SXEEND and SXEHDND must be the same. In any case, the addresses that CP will use for its control blocks and other normal use will be indicated by SXESTART and SXEEND. |
SXEWK Control Block Content | Top of page |
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SXEWK Storage Layout | Top of page |
*** SXEWK - Storage Extension Work Area * * +-------------------------------------------------------+ * 0 | SXEHDST | * +-------------------------------------------------------+ * 8 | SXEHDND | * +-------------------------------------------------------+ * 10 | SXEHDSTF | * +-------------------------------------------------------+ * 18 | SXEHDNDF | * +-------------------------------------------------------+ * 20 | SXESTART | * +-------------------------------------------------------+ * 28 | SXEEND | * +-------------------------------------------------------+ * 30 | SXEFTFS | * +-------------------------------------------------------+ * 38 | SXEFTPTS | * +-------------------------------------------------------+ * 40 | SXESPMTS | * +-------------------------------------------------------+ * 48 | SXESXSTS | * +-------------------------------------------------------+ * 50 | SXESXSS | * +-------------------------------------------------------+ * 58 | SXESTSIZ | * +-------------------------------------------------------+ * 60 |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * 68 | SXE4Q | * +-------------------------------------------------------+ * 70 | SXE1Q | * +-------------------------------------------------------+ * 78 | SXEAVLZN | * +---------------------------+---------------------------+ * 80 | SXEFTXBK | SXERSMBK | * +---------------------------+---------------------------+ * 88 * *** SXEWK - Storage Extension Work Area |
SXEWK Cross Reference | Top of page |
Symbol Dspl Value -------------- ---- ----- SXEAvlZn 0078 SXEEND 0028 SXEFTFS 0030 SXEFTPTS 0038 SXEFTXBK 0080 SXEHDND 0008 SXEHDNDF 0018 SXEHDST 0000 SXEHDSTF 0010 SXERSMBK 0084 SXESPMTS 0040 SXESTART 0020 SXESTSIZ 0058 SXESXSS 0050 SXESXSTS 0048 SXESZD 0084 00000011 SXE1Q 0070 SXE4Q 0068 |
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