Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
DTCBK
PrologControl Block Contents
DTCBK DSECT
Storage Layout
Cross Reference
DTCBK Prolog
Name : HCPDTCBK Description: Detach Command Control Block DSECT : DTCBK Function : Contains parameters used by the Detach command Created by : HCPDTCMD Deleted by : HCPDTCMD, HCPDTRDV, HCPDTLDV, HCPDTVDV
DTCBK Control Block Content
DTCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure DTCBK Detach Command Control Block 0000 0 Address 4 DTCNEXT Address of the next DTCBK 0004 4 Bitstring 4 DTCDEVS (0) Device range 0004 4 Signed 2 DTCDEV1 Beginning device number 0006 6 Signed 2 DTCDEV2 Ending device number 0008 8 Bitstring 1 DTCRFLAG Flags for detach processing 1... .... DTCRLOGD X'80' Logical device request .1.. .... DTCLEAVE X'40' LEAVE option was specified ..1. .... DTCUNLOD X'20' UNLOAD option was specified ...1 .... DTCCANCL X'10' Cancel any more detach requests 00000002 DTCSIZE (*-DTCBK+7)/8 Size in doublewords
DTCBK Storage Layout
*** DTCBK - Detach Command Control Block * * +---------------------------+-------------+-------------+ * 0 | DTCNEXT | DTCDEV1 | DTCDEV2 | * +------+--------------------+-------------+-------------+ * 8 |:RFLAG| 9 * +------+ * *** DTCBK - Detach Command Control Block
DTCBK Cross Reference
Symbol Dspl Value -------------- ---- ----- DTCCANCL 0008 10 DTCDEVS 0004 DTCDEV1 0004 DTCDEV2 0006 DTCLEAVE 0008 40 DTCNEXT 0000 DTCRFLAG 0008 DTCRLOGD 0008 80 DTCSIZE 0008 00000002 DTCUNLOD 0008 20
Last updated on 30 Mar 2001 at 07:52:45 EDT.
Copyright IBM Corporation, 1990, 2001