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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure TVISECT DMSTVI PLIST - Tape Volume Processing I-face
0000 0 Character 8 TVIMOD MODULE NAME FOR SVC 202
0008 8 Character 8 TVIFUNCT CALL FUNCTION KEYWORD
SYSPARM - CALL FOR SYSPARM
PROCESSING
OPEN - CALL FROM OPEN MACRO
VOLIDBAD - TAPE / USER SPECIFIED
VOLIDS DO NOT MATCH
EOV - CALL FOR END OF VOLUME
CLOSE - CALL FROM CLOSE MACRO
THE FOLLOWING FIELDS WILL BE FILLED IN FROM INFORMATION THAT
IS STORED IN THE LABSECT. REFER TO THE LABELDEF COMMAND FOR
MORE INFORMATION ABOUT THESE FIELDS.
0010 16 Character 8 TVIFILE DDNAME
0018 24 Character 17 TVIFID FILE ID (RIGHTMOST 17 CHARACTERS)
0029 41 Character 1 TVISEC SECURITY TYPE
002A 42 Character 6 TVIVOLID VOLUME ID TO BE MOUNTED
0030 48 Character 4 TVIVSEQ VOLUME SEQUENCE NUMBER
0034 52 Character 4 TVIFSEQ FILE SEQUENCE NUMBER
0038 56 Character 4 TVIGENN GENERATION NUMBER
003C 60 Character 2 TVIGENV GENERATION VERSION
003E 62 Character 6 TVICRD CREATION DATE
0044 68 Character 6 TVIEXD EXPIRATION DATE
004A 74 Signed 2 TVISYSPL LENGTH OF SYSPARM STRING
004C 76 Address 4 TVISYSPA ADDRESS OF SYSPARM STRING
0050 80 Character 44 TVIFILID FILE IDENTIFIER
007C 124 Character 8 TVISCRAT SCRATCH | NOSCRATC SCRATCH WAS
(OR WAS NOT) SPECIFIED AS THE
LABELDEF VOLID
THE FOLLOWING FIELDS WILL BE FILLED IN FROM INFORMATION
THAT IS STORED IN THE FCBSECT (SUPPLIED BY THE FILEDEF
COMMAND).
0084 132 Character 4 TVICUU VIRTUAL DEVICE ADDRESS (TAP0
THROUGH TAPF) X'180' - X'187',
X'288' - X'28F'
0088 136 Character 8 TVILABEL Filled with tape label type code
0090 144 Bitstring 1 TVIRFMT RECORDING FORMAT
1..1 .... TVIMODE 00001 TVIRFMT,1,C'X' Old label
for TVIRFMT
0091 145 Character 4 TVIALT ALTERNATE TAPE DRIVE TAPE ID
0095 149 Character 6 TVIRING RING | NORING - WRITE ENABLE RING
009B 155 Bitstring 1 TVIFLAGS FLAG FOR TVI EXPANSION FIELDS
BIT INDICATORS (MAY BE USED IN COMBINATIONS)
X'00' NO EXPANSION DATA AVAILABLE
X'80' DATA BEING PASSED FROM TAPE SUB-SYS
X'40' - RESERVED -
X'20' - RESERVED -
X'10' - RESERVED -
X'08' - RESERVED -
X'04' - RESERVED -
X'02' - RESERVED -
X'01' EXPANSION DATA FIELDS AVAILABLE
009C 156 Signed 4 TVIBLKCT BLOCK COUNT
-- EXPANSION DATA FIELDS ******************************----
THE FOLLOWING FIELDS WILL BE FILLED IN FROM INFORMATION
THAT IS STORED IN THE APPLICATION PROGRAM DCB BLOCK AT
"CLOSE" TIME TO BE MADE AVAILABLE TO THE TAPE SUBSYSTEM.
IF THE TAPE SUBSYSTEM HAS THESE VALUES AVAILABLE WHEN THE
DMSTVI "OPEN" CALL IS DONE, CMS WILL ACCEPT THESE VALUES
AS RETURNED OUTPUTS FOR SUBSTITUTION INTO THE FCB (FILEDEF),
IF THE USER HAS NOT ALREADY SPECIFIED THEM. THE FCB
INFORMATION WILL THEN BE USED TO REPLACE ANY NON-SPECIFIED
DCB ATTRIBUTES DURING THE CMS OPEN PROCESSING, JUST AS IS
DONE FOR STANDARD LABEL TAPE PROCESSING.
00A0 160 Bitstring 1 TVIRECFM FILE RECORD FORMAT
Basic record format bit definitions:
X'80' = Fixed length records RECFM= F
X'40' = Variable length records RECFM= V
X'C0' = Undefined length records RECFM= U
X'20' = ASCII Variable length records RECFM= D
Modifiers which further define records:
X'10' = Blocking being done
X'08' = For Fixed records: Standard size blocks used
For Variable recs: Spanned records used
X'04' = ASA Control characters in use
X'02' = Machine Control characters in use
X'01' = Record Key length specified
00A4 164 Signed 4 TVILRECL FILE LOGICAL RECORD LENGTH
00A8 168 Signed 4 TVIBLKSI FILE BLOCK SIZE
00B0 176 Dbl-Word 8 TVIEND (0) END OF TVISECT
00000016 TVISIZE (*-TVISECT+7)/8 SIZE OF TVISECT
IN DOUBLEWORDS
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