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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
NSDBK
Control Block Contents
NSDBK DSECT
Cross Reference (Contains links to field and bit definitions)
NSDBK Prolog
NAME : HCPNSDBK
DESCRIPTION: DEFSEG/DEFSYS parameter control block
DSECT : NSDBK
FUNCTION : The HCPNSDBK is a parameter area used for
DEFSEG/DEFSYS.
LOCATED BY : None
CREATED BY : HCPNSD
DELETED BY : HCPNSD
NSDBK Control Block Content
NSDBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure NSDBK DEFSEG/DEFSYS parameter control
block
0000 0 Bitstring 1 NSDOPTFG Operand/option flag
...1 .... NSDMINSZ X'10' NSDMINSZ If on, indicates
MINSIZE operand was specified.
..1. .... NSDPREGS X'20' NSDPREGS If on, indicates
PARMREGS operand was already
specified
.1.. .... NSDSAMER X'40' NSDSAMER If on, indicates
that SAMErange operand was
already specified
1... .... NSDSSP X'80' NSDSSP If on, indicates
that the SPACE operand was
already specified
0001 1 Bitstring 1 NSDERRFG Error flag
1... .... NSDMSSCL X'80' NSDMSSCL Indicate that the
MSS (R8) SDFBK is to be closed
.1.. .... NSDMSSPU X'40' NSDMSSPU Indicate that the
MSS (R9) SDFBK is to be purged
..1. .... NSDSSPCL X'20' NSDSSPCL Indicate that the
SSP (R8) SDFBK is to be closed
...1 .... NSDSSPPU X'10' NSDSSPPU Indicate that the
SSP (R8) SDFBK is to be purged
.... 1... NSDNOMSG X'08' NSDNOMSG Indicates to exit
without sending a message
0002 2 Bitstring 1 NSDSTAFG Status flag
1... .... NSDMSSOR X'80' NSDMSSOR Indicates that the
member was found opened for reads
.1.. .... NSDNEWSP X'40' NSDNEWSP Indicates a new
SSP created. No need to return
frame from the call to HCPNSCFA.
..1. .... NSDSSPOR X'20' NSDSSPOR Indicates that the
segment space was found opened
for read
0003 3 Bitstring 1 NSDLCKFG *NSS SDF queue lock status
1... .... NSDSDFEX X'80' NSDSDFEX Indicates that the
*NSS SDF queue lock is held
exclusively
..1. .... NSDSDFNO X'20' NSDSDFNO Indicates that the
*NSS SDF queue lock is not held
00000001 NSDBKDSZ (*-NSDBK+7)/8 NSDBK block size in
DW's
00000004 NSDBKBSZ (*-NSDBK) NSDBK block size in
bytes
NSDBK Storage Layout
*** NSDBK - DEFSEG/DEFSYS parameter control block
*
* +------+------+------+------+
* 0 |:OPTFG|:ERRFG|:STAFG|:LCKFG| 4
* +------+------+------+------+
*
*** NSDBK - DEFSEG/DEFSYS parameter control block
NSDBK Cross Reference
Symbol Dspl Value -------------- ---- ----- NSDBKBSZ 0003 00000004 NSDBKDSZ 0003 00000001 NSDERRFG 0001 NSDLCKFG 0003 NSDMINSZ 0000 10 NSDMSSCL 0001 80 NSDMSSOR 0002 80 NSDMSSPU 0001 40 NSDNEWSP 0002 40 NSDNOMSG 0001 08 NSDOPTFG 0000 NSDPREGS 0000 20 NSDSAMER 0000 40 NSDSDFEX 0003 80 NSDSDFNO 0003 20 NSDSSP 0000 80 NSDSSPCL 0001 20 NSDSSPOR 0002 20 NSDSSPPU 0001 10 NSDSTAFG 0002
Copyright IBM Corporation, 1990, 2007