Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
SHOBK
Control Block Contents
SHOBK DSECT
Cross Reference (Contains links to field and bit definitions)
SHOBK Prolog
Name : HCPSHOBK Description: Set System Characteristics Data Area DSECT : SHOBK Function : Map resident data area for Set System Characteristics Data in HCPIOD Located by : Created by : none Deleted by : none
SHOBK Control Block Content
SHOBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SHOBK Set System Characteristics Data Area 0000 0 Bitstring 1 SHOPSFOR Order ...1 11.1 SHO1DCCW X'1D' Set System Characteristics Order 0001 1 Bitstring 1 SHOFLAGS Flags 0002 2 Bitstring 4 SHOCUSUP Control Unit Types Supported 0006 6 Bitstring 1 SHOCWSUP CCW Supported 1... .... SHOPREFX X'80' Prefix Command Supported .1.. .... SHORDTDT X'40' Read Track Data Supported ..1. .... SHOWTSET X'20' Write Track Set Supported ...1 .... SHOUWTSE X'10' Update Write Trackset Supported .... 1... SHOPAVOL X'08' Parallel Access Volume Supported .... .1.. SHONULLW X'04' Nullification Window not required 0007 7 Bitstring 55 * Reserved 003E 62 Bitstring 1 SHOP1 Part 1 003F 63 Bitstring 1 SHOP2 Part 2 0040 64 Bitstring 2 SHOP3 Part 3 00000042 SHOBKBYL *-SHOBK Byte length of SHOBK 00000009 SHOBKDSZ ((SHOBKBYL+7)/8) Doubleword length of SHOBK
SHOBK Storage Layout
*** SHOBK - Set System Characteristics Data Area * * +------+------+---------------------------+------+------+ * 0 |:PSFOR|:FLAGS| SHOCUSUP |:CWSUP|//////| * +------+------+---------------------------+------+//////| * 8 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |/////////////////////////////////////////+------+------+ * 38 |/////////////////////////////////////////|SHOP1 |SHOP2 | * +-------------+---------------------------+------+------+ * 40 | SHOP3 | 42 * +-------------+ * *** SHOBK - Set System Characteristics Data Area
SHOBK Cross Reference
Symbol Dspl Value -------------- ---- ----- SHOBKBYL 0040 00000042 SHOBKDSZ 0040 00000009 SHOCUSUP 0002 SHOCWSUP 0006 SHOFLAGS 0001 SHONULLW 0006 04 SHOPAVOL 0006 08 SHOPREFX 0006 80 SHOPSFOR 0000 SHOP1 003E SHOP2 003F SHOP3 0040 SHORDTDT 0006 40 SHOUWTSE 0006 10 SHOWTSET 0006 20 SHO1DCCW 0000 1D
Last updated on 5 Jun 2001 at 16:34:43 EDT.
Copyright IBM Corporation, 1990, 2001