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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure SCBLOCK Subcommand Control Block
0000 0 Signed 4 SCBFWPTR CHAIN POINTER TO NEXT SCBLOCK
0004 4 Address 4 SCBWKWRD AVAILABLE FOR USER INFORMATION
0008 8 Character 8 SCBNAME NAME OF SUBCOMMAND ENVIRONMENT
0010 16 Dbl-Word 8 SCBPSW (0) STARTING PSW FOR SUBCOMMAND
0010 16 Bitstring 1 SCBINT PSW INTERRUPT BITS
The following table shows the combination of bits
in SCBPSW that determine what the various INTTYPEs are.
INTTYPE |BIT 0|BIT 1| |BIT 7|HEX value
--------------------------------------------------------
NONE 0 0 0 00
EXTERNAL 0 0 1 01
NONCONSOLE 0 1 0 40
NONCONSOLE & EXTERNAL 0 1 1 41
CONSOLE 1 0 0 80
CONSOLE & EXTERNAL 1 0 1 81
IO 1 1 0 C0
ALL 1 1 1 C1
NUCX FIELDS. THESE ARE PRESENT, BUT NOT USED,
IN SCBLOCKS ON THE NUCSCBLK CHAIN.
0011 17 Bitstring 1 SCBKEY PSW KEY
0012 18 Bitstring 1 SCBSFLAG SYSTEM FLAG BYTE.
1... .... SCBSFSYS X'80' SCBSFSYS DENOTES "SYSTEM"
ROUTINE -- WILL NOT BE
AUTOMATICALLY DELETED DURING
ABEND PROCESSING.
.1.. .... SCBSFSER X'40' SCBSFSER DENOTES "SERVICE"
ROUTINE -- WILL BE CALLED WITH
"PURGE" ARGUMENT DURING ABEND
PROCESSING.
..1. .... SCBSFABN X'20' SCBSFABN USED DURING ABEND
PROCESSING.
...1 .... SCBSFEND X'10' SCBSFEND DENOTES 'END OF
COMMAND' ROUTINE
..1. .... SCBSFINT SCBSFABN SCBSFINT USED DURING END
OF COMMAND PROCESSING.
.... 1... SCBSPERM X'08' SCBSPERM DENOTES THAT THIS
NUCLEUS EXTENSION WON'T BE
DELETED DURING NUCXDROP ALL
PROCESS
.... .1.. SCBSFIMM X'04' SCBSFIMM DENOTES THAT THIS
NUCLEUS EXTENSION CAN ALSO BE
CALLED AS AN IMMEDIATE COMMAND
.... ..1. SCBSFX X'02' SCBSFX DENOTES A LOOK-ASIDE
ENTRY POINTING TO A REAL CMS
NUCLEUS ROUTINE.
.... ...1 SCBSHIDE X'01' SCBSHIDE USED TO HIDE A
NUCLEUS EXTENSION TEMPORARILY.
0013 19 Bitstring 1 SCBUFLAG USER FLAG BYTE.
0014 20 Address 4 SCBENTR ENTRY POINT ADDRESS IN PSW
0018 24 Address 4 SCBXORG ADDRESS WHERE NUCLEUS EXTENSION
WAS LOADED IN FREE STORAGE.
001C 28 Signed 4 SCBXLEN LENGTH IN BYTES OF NUCLEUS
EXTENSION. MAY BE ZERO FOR
SECONDARY ENTRY POINTS.
0020 32 Bitstring 1 SCBSFLG2 F*2 SECOND FLAG BYTE
1... .... SCBSFA31 X'80' SCBSFA31 EXTENSION IS AMODE
31
.1.. .... SCBSFA24 X'40' SCBSFA24 EXTENSION IS AMODE
24
..1. .... SCBSFSEG X'20' SCBSFSEG SEGMENT RESIDENT
WHEN BOTH ON, EXTENSION IS AMODE
ANY, WHEN BOTH OFF, EXTENSION IS
AMODE SAME.
...1 .... SCBSFUNC X'10' SCBSFUNC Indicate function
can not be S5U29592 invoked from
the command line
.... 1... SCBSMT X'08' SCBSMT mt subcom
.... .1.. SCBSTPRV X'04' SCBSTPRV thread private
subcom
0021 33 Bitstring 1 * (3) RESERVED FOR FURTURE USE
0024 36 Character 8 SCBSEGID LOGICAL SEGMENT IDENTIFIER
002C 44 Signed 4 SCBTESTK thread execomm stack
0030 48 Dbl-Word 8 * (0) KEEP DOUBLEWORD ALIGNED
00000030 SCBLOCKB *-SCBLOCK LENGTH IN BYTES
00000006 SCBLOCKD (SCBLOCKB+7)/8 LENGTH IN DWORD
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