FVSECT Back to Index page
 
Prolog 
Control Block Contents 
   FVSECT DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  FVSECT Prolog Top of page
 
 NAME       : FVS
 DESCRIPTION: Fixed Variable Storage Work Area
 DSECT      : FVSECT
 FUNCTION   : Workarea for file management
              routines; must also include the DMSAFT macro.
              FVSECT is used mainly by file management and
              I/O routines. FVS contains save areas, work
              areas, and commonly used constants. A typical
              use of FVS is when a reentrant I/O routine
              requires a work area or save area, because the
              routine cannot modify itself. FVSECT is called
              by the FVS macro.
 
 
  FVSECT Control Block Content Top of page
 

 FVSECT DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure FVSECT Fixed Variable Storage Work Area 0000 0 Signed 4 DISK$SEG (15) (1) FOR ACTLKP, TRKLKP, QQTRK 003C 60 Signed 4 REGSAV3 (15) (2) FOR STATE 0078 120 Signed 4 RWFSTRG (18) (3) REMAINING STORAGE FOR RDBUF, WRBUF 00C0 192 Signed 4 FVSBUFSZ SFS R/W cache size in 4K blocks ( Default is five 4K blocks or 20K) 00C4 196 Address 4 FVSDAFT Addr of the first DMSOPEN AFT or the anchor AFT. 00C8 200 Address 4 FVSFSER Address of FS to SFS error data area (DMSFSERR), this will be zero until first applicable error encountered 00CC 204 Signed 4 FVSFSSZ Maximum error elements in DMSFSERR block The default is 11. 00D0 208 Signed 4 * RESERVED FOR FUTURE IBM USE SAVE-AREA FOR LOWEST-LEVEL ROUTINES: E.G. READMFD, RELUFD, UPDISK, ADTLKW 00D4 212 Signed 4 REGSAV0 (15) -- (1) SAVED R0-R15 0110 272 Address 3 * -- (2) FIRST 3 BYTES OF RETURN-CODE 0113 275 Address 1 ERRCOD0 -- (3) ERROR-CODE GOES HERE 000000D4 TRKLSAVE REGSAV0 FOR TRKLKP/X ONLY WHEN CALLED BY QQTRK/X SAVE-AREA FOR NEXT-TO-LOWEST LEVEL ROUTINES: E.G. READFST, ERASE, ALTER, INTSVC-LOADMOD 0114 276 Signed 4 REGSAV1 (15) -- (1) save R0-R15 0150 336 Address 3 * -- (2) first 3 bytes of return code which are to remain unchanged 0153 339 Address 1 ERRCOD1 -- (3) error code goes here 0154 340 Signed 4 F65535 = X'0000FFFF' 0158 344 Signed 4 FW4 00000FW4 HW4 FW4+2 HW4 Flag byte indicating that a module has copied the plist into the DMSNUCPA area because the plist was above the line. This flag byte is currently being used by DMSSTT, DMSFNS, and DMSERS. 015C 348 Bitstring 1 NUCPAFLG DMSNUCPA flag byte 1... .... ERSCOPY X'80' ERSCOPY ERASE did a copy .1.. .... FNSCOPY X'40' FNSCOPY FINIS did a copy ..1. .... STTCOPY X'20' STTCOPY STATE did a copy 015D 349 Bitstring 3 * Reserved for future use 0160 352 Signed 4 F100 -- (2) 0164 356 Signed 4 * Reserved for future use 0168 360 Signed 4 * Reserved for future IBM use 016C 364 Signed 4 * Reserved for future IBM use 0170 368 Signed 4 * Reserved for future IBM use 0174 372 Signed 4 * Reserved for future IBM use 0178 376 Signed 4 * Reserved for future IBM use 017C 380 Signed 4 * Reserved for future IBM use 0180 384 Signed 4 DSKLST (0) ALL-PURPOSE RDTK/WRTK P-LIST... 0180 384 Address 4 DSKLOC CORE LOC. OF ITEM 0184 388 Address 4 RWCNT BYTE-COUNT (USUALLY 800) 0188 392 Address 4 DSKADR DISK ADDRESS OF ITEM 1... .... FWADDR X'80' FWADDR IN HIGH BIT OF DSKADDR INDICATES EXTENDED DIO PLIST (FULLWORD DISK ADR, PTR SIZE AND PLIST CHAIN POINTER) 018C 396 Address 4 ADTADD ADDRESS OF CORRECT ACTIVE-DISK-TABLE 0190 400 Signed 4 DSKPTRSZ DSK POINTER SIZE IF F/W ADDR 0194 404 Address 4 DSKCHAIN PLIST CHAIN POINTER 0198 408 Signed 4 DSKLST2 (0) ALL-PURPOSE RDTK/WRTK P-LIST 0198 408 Address 4 DSKLOC2 CORE LOC. OF ITEM 019C 412 Address 4 RWCNT2 BYTE-COUNT 01A0 416 Address 4 DSKADR2 DISK ADDRESS OF ITEM 01A4 420 Address 4 ADTADD2 ADDR OF ADT (NOT USED IN CHAINED PLISTS) 01A8 424 Signed 4 DSKPTRS2 DSK POINTER SIZE IF F/W ADDR 01AC 428 Address 4 DSKCHAI2 PLIST CHAIN POINTER 00000018 DSKLEN (DSKCHAI2+4)-DSKLST2 Length of RDTK PLIST 01B0 432 Character 8 FINISLST P-LIST TO CLOSE ALL FILES 01B8 440 Character 8 * 01C0 448 Character 8 * 01C8 456 Character 2 * 01CA 458 Signed 2 * (0) HALFWORD CONSTANTS ... 01CA 458 Bitstring 2 FFF MEANS NO SIGNIFICANT DATA PAST 215TH BYTE 01CC 460 Bitstring 2 FFE 1968-ERA MFD STILL SUPPORTED ON INPUT ONLY 01CE 462 Bitstring 2 FFD NEWEST SIGNAL FOR FULL 2314 HANDLING NOTE: 2314 DASD is not supported 'SIGNAL' = SCRATCH HALFWORD USED BY READMFD OR ERASE... 01D0 464 Signed 2 SIGNAL = 0000, X'FFFF', X'FFFE', OR X'FFFD' 00SIGNAL SWTCH SIGNAL+1 SWTCH 00, FF, FE, OR FD 01D2 466 Bitstring 1 UFDBUSY NONZERO MEANS 'UFD IS BUSY BEING UPDATED' 01D3 467 Bitstring 1 KXFLAG 'KX' FLAGS 1... .... KXWANT X'80' KXWANT KX WANTED ASAP .... ...1 KXWSVC X'01' KXWSVC HOLD KX UNTIL ANY SVC ACTIVITY 01D4 468 Bitstring 1 FVSFLG0 FLAG FOR GENERAL COMUNICATION Flag bits for FVSFLG0 .... ...1 FVSACCM0 X'01' When on, indicate that fm 0 files can be included for R/O accessed disk. 01D5 469 Bitstring 1 FLGSAVE FOR SCRATCH USE (E.G. BY RELUFD) FLAG BITS FOR 'UFDBUSY' FLAG 1... .... WRBIT X'80' WRBUF .1.. .... UPBIT X'40' UPDISK - READMFD ..1. .... FNBIT X'20' FINIS ...1 .... ERBIT X'10' ERASE - ALTER - READFST .... 1... DIOBIT X'08' RDTK/WRTK THE FOLLOWING BITS ARE FOR ROUTINES WHICH DO NOT UPDATE THE DISK, BUT WHICH CAN'T BE INTERRUPTED BY A KX ANYWAY. .... ..1. ABNBIT X'02' DMSABN -- ABEND RECOVERY ROUTINE .... ...1 ITSBIT X'01' DMSITS -- SVC HANDLING ROUTINE 01D6 470 Bitstring 1 FVSFLAG (FOR GENERAL USE - AS NEEDED) MISCELLANEOUS STORAGE USED BY ERASE (OR ALTER) .... 01D7 471 Bitstring 1 ERSFLAG FLAG FOR USE BY ERASE OR ALTER 01D8 472 Signed 4 FVSERAS0 R0 at entry to ERASE 01DC 476 Signed 4 FVSERAS1 R1 at entry to ERASE 01E0 480 Signed 4 FVSERAS2 Address of ERASE work area 01E4 484 Signed 4 FVSERAS3 Address of copied extended plist 01E8 488 Signed 4 FVSERAS4 reserved for use by ERASE 01EC 492 Signed 4 FVSERAS5 reserved for use by ERASE 01F0 496 Signed 4 * Reserved for future IBM use 01F4 500 Signed 4 FVSERAS6 reserved for use by ERASE FILE STATUS TABLE (FST) COPY FROM "STATE" 01F8 504 Dbl-Word 8 STATEFST (0) FST OF 'STATED' FILE CDF FST COPY (40 BYTES) (returned on FSSTATE and FSOPEN without FORM=E) 01F8 504 Dbl-Word 8 FVSFSTN FILENAME -0 0200 512 Dbl-Word 8 FVSFSTT FILETYPE -8 0208 520 Signed 2 FVSFSTDT (2) DATE/TIME LAST WRITTEN -16,18 020C 524 Signed 2 FVSFSTWP WRITE POINTER (ITEM ID) -20 020E 526 Signed 2 FVSFSTRP READ POINTER (ITEM ID) -22 0210 528 Signed 2 FVSFSTM FILEMODE -24 0212 530 Signed 2 FVSFSTIC N'ITEMS IN FILE -26 0214 532 Signed 2 FVSFSTCL DA(FIRST CHAIN LINK) -28 0216 534 Character 1 FVSFSTFV FIXED(F) / VARIABLE(V) INDICATOR -30 0217 535 Bitstring 1 FVSFSTFB FLAG BYTE -31 0218 536 Signed 4 FVSFSTIL L'ITEMS -32 021C 540 Signed 2 FVSFSTDB N'DATA BLOCKS -36 021E 542 Character 1 FVSFSTYR (2) YEAR LAST WRITTEN -38 Note there is a flag bit in FVSFSTFB X'08' that corresponds to FVSFSTYR indicating the century (0=19, 1=20) 00000028 FVSL1 *-STATEFST LENGTH OF SHORT FST POINTERS ASSOCIATED WITH BOTH FST VERSIONS 0220 544 Address 4 FVSFSTAD A(ADT FOR THIS FILE) FVSFSTAD STATER0 FVSFSTAD STATER0 0224 548 Address 4 FVSFSTAC A(REAL FST ENTRY FOR THIS FILE) FVSFSTAC STATER1 FVSFSTAC STATER1 0228 552 Signed 4 * (2) Reserved for future IBM use EDF/SFS FST COPY (80 BYTES) 0230 560 Dbl-Word 8 STATFST2 (0) EDF FORMAT FST COPY FILE STATUS TABLE (FILE DIRECTORY) BLOCK 0230 560 Signed 4 * (0) 0230 560 Character 16 FVSNT (0) Filename and file type 0230 560 Character 8 FVSN FILE NAME 0238 568 Character 8 FVST FILE TYPE 0000FVST FVSDIRN 00010 FVSN,16 Subdirectory name 0240 576 Signed 4 FVSD DATE/TIME LAST WRITTEN 0244 580 Signed 2 FVSWP WRITE POINTER (ITEM #) 0246 582 Signed 2 FVSRP READ POINTER (ITEM #) 000FVSRP FVSBFOWN 00008 FVSD,8 Base file owner 0248 584 Signed 2 FVSM File mode and mode number. Mode number will be blank for DIRs. 00000248 FVSMCHAR FVSM,1 File mode character 00000249 FVSMNUM FVSM+1,1 File mode number 024A 586 Signed 2 FVSIC ITEM COUNT, zero for directories 000FVSIC FVSCDFMR 65533 FVSCDFMR maximum valid record number for CDF files 024C 588 Signed 2 FVSFCL FIRST CHAIN LINK 00FVSFCL FVSSCID 00004 FVSIC,4 Something Changed ID 024E 590 Character 1 FVSFV Type of FST flag field FSTFV flag -byte definitions 000000C6 FVSFVFIX C'F' FIXED file FST 000000E5 FVSFVVAR C'V' VARIABLE file FST 000000C4 FVSFVDIR C'D' DIRECTORY FST 00000060 FVSFVERS C'-' Erased or revoked alias FST 024F 591 Bitstring 1 FVSFB Flag byte (if used) "FSTFB" FLAG-BYTE DEFINITIONS (APPLICABLE ONLY TO "STATEFST" COPY OF FST-ENTRY AFTER SUCCESSFUL "STATE" OR "STATEW" CALL.) .... .... FVSFRO X'00' READ-ONLY DISK .1.. .... FVSFROX X'40' READ-ONLY EXTENSION OF READ-ONLY DISK ...1 .... FVSFBSFS X'10' Shared File FST 1... .... FVSFRW X'80' READ-WRITE DISK 11.. .... FVSFRWX X'C0' READ-ONLY EXTENSION OF READ-WRITE DISK .... 1... FVSCNTRY X'08' CENTURY FOR DATE LAST WRITTEN (0=19, 1=20), CORRESPONDS TO FSTYR, FSTADATI. .... .111 FVSFACT X'07' FILE "ACTIVE" - ONE OF THE FOLLOWING: .... .1.. FVSFAR X'04' FILE ACTIVE FOR READING .... ..1. FVSFAW X'02' FILE ACTIVE FOR WRITING .... ...1 FVSFAP X'01' FILE ACTIVE FROM A "POINT" APPLICABLE TO FSCBFLG IN PLIST ..1. .... FVSEPL X'20' EXTENDED PLIST .1.. .... FVSITAV X'40' ITEM AVAILABLE .... ...1 FVSRECAV X'01' PREVIOUS RECORD NULL 0250 592 Signed 4 FVSIL (MAXIMUM) ITEM LENGTH 0254 596 Signed 2 FVSDBC NUMBER OF DATA BLOCKS 0256 598 Signed 2 FVSYR YEAR 000FVSYR FVSTID 00004 FVSDBC,4 Tupple Identifier 00000028 FVSL *-FVSN FST EDF EXTENSION 0258 600 Signed 4 FVSFOP ALT. FILE ORIGIN POINTER, will be zero for directories 025C 604 Signed 4 FVSADBC ALT. NUMBER OF DATA BLOCKS, will be zero for directories 0260 608 Signed 4 FVSAIC ALT. ITEM COUNT, will be zero for directories 0264 612 Bitstring 1 FVSNLVL NUMBER OF POINTER BLOCK LEVELS, zero for directories 0265 613 Bitstring 1 FVSPTRSZ LENGTH OF A POINTER ELEMENT, zero for directories 0266 614 Character 6 FVSADATI ALT. DATE/TIME(YY MM DD HH MM SS) FVSADATI FVSFDATE 00003 FVSADATI,3 Date FVSADATI FVSFTIME 00003 FVSADATI+3,3 Time 026C 620 Signed 4 FVSEDFEN 026C 620 Character 1 FVSREALM Real filemode 026D 621 Bitstring 1 FVSFLAG2 FST flag byte 2 ...1 .... FVSPIPEU X'10' FVSPIPEU Reserved for CMS PIPELINES usage 026E 622 Character 2 * - Reserved - 00000040 FVSL2 *-FVSN LENGTH OF AN EDF FST. 026C 620 Bitstring 8 FVSOID Object identifier 0274 628 Bitstring 8 FVSBFOID Base file identifier The bits in the authority flag byte are mutually exclusive. 027C 636 Bitstring 1 FVSFB1 authority flag byte 1... .... FVSFB1RD X'80' FVSFB1RD Read authority for this file .1.. .... FVSFB1WR X'40' FVSFB1WR Write authority for this file No Authority to this file when FB1RD and FB1WR are off ..1. .... FVSFB1EX X'20' FVSFB1EX ESM-protected file 027D 637 Bitstring 1 FVSFB2 status flag byte 1... .... FVSFB2ER X'80' FVSFB2ER Erased Alias indicator .1.. .... FVSFB2RV X'40' FVSFB2RV Revoked Alias indicator ..1. .... FVSFB2BF X'20' FVSFB2BF Base file indicator ...1 .... FVSFB2AL X'10' FVSFB2AL Alias fst indicator .... 1... FVSFB2SD X'08' FVSFB2SD Subdirectory fst indicator .... .1.. FVSFB2DC X'04' FVSFB2DC Dircontrol subdirectory Note. FB2DC = on implies that FB2SD = on. .... ..1. FVSFB2MG X'02' FVSFB2MG Migrated file .... ...1 FVSFB2EO X'01' FVSFB2EO External Object 027E 638 Bitstring 1 FVSFB3 extended attribute flag byte 1... .... FVSFB3IP X'80' FVSFB3IP file has the INPLACE attribute .1.. .... FVSFB3MA X'40' FVSFB3MA module file with long name alias ..1. .... FVSFB3IV X'20' FVSFB3IV FST invalid (during cache update -DMSJCM only) .... 1... FVSCDOLR X'08' FVSCDOLR CENTURY FOR DATE LAST REFERENCE (0=19, 1=20), CORRESPONDS TO FSTDOLR. 027F 639 Character 1 * -RESERVED- 00000050 FVSL3 *-FVSN Length of a Shared file FST 0280 640 Signed 4 FVSDSFOP Data space file origin pointer 0284 644 Character 3 FVSDOLR Date of last reference 0287 647 Character 1 * -RESERVED- 00000058 FVSL4 *-FVSN Length of an SFS data space FST 00000288 FVSNDFST * END OF FST COPIES IN FVS 00000090 FVSENDST FVSNDFST-STATEFST length of STATEFST in bytes 00000012 FVSNDSTD (FVSENDST+7)/8 length of STATEFST in dwords 00000005 FVSELMNT 5 NUMBER OF FVS DIO PLISTS IN MULTI-ELEMENT CHAINED PLIST 00000006 FVSELMNL 6 LENGTH OF A DIO PLIST ELEMENT 0288 648 Signed 4 FVSDIOPL (30) IO MULTI-ELEMENT PLIST. 0300 768 Signed 4 * (16) Reserved for future IBM use 0340 832 Dbl-Word 8 FVSPATCH (0) PATCH AREA FOR CMS NUC 0340 832 Character 8 * EYE CATCHER 0348 840 Signed 4 FVSFNSST Storage chain anchor for FNS 034C 844 Signed 4 * (19) PATCH AREA 0398 920 Signed 4 FVSACFR (15) Save regs 0-14 for DMSACF 03D4 980 Address 2 * 03D6 982 Bitstring 1 FVSFLG1 Flag byte FLAG BIT FOR FVSFLG1 1... .... FVSSEGC X'80' DMSARESG invoked (via SEGMENT) .1.. .... FVSPURC X'40' segment purge invoked (in DMSALU) 03D7 983 Address 1 FVSACFE Save reg.15 (error) for DMSACF 03D8 984 Signed 4 FVSACGR (15) Save regs 0-14 for DMSACG 0414 1044 Address 3 * 0417 1047 Address 1 FVSACGE Save reg. 15 (error) for DMSACG 0418 1048 Signed 4 FVSLAD (16) Save area for DMSLAD 0458 1112 Signed 4 FVSAAFT (0) Anchor to the AFT chain; maps to the first 12 bytes of an AFT 0458 1112 Address 4 * Forward pointer 045C 1116 Address 4 * backward pointer 0460 1120 Character 3 * eyecatcher for AFT 0463 1123 Bitstring 1 * INDICATE ANCHOR FOR AFTS. IF THIS EQUATE CHANGES, MUST CHANGE EQUATE IN FIELD AFTANCHR IN THE DMSAFT MACRO AND DMSAFTP COPY. 0464 1124 Address 4 FVSNUAFT ptr to the chain of unused preallocated AFTS or zero if all are being used 0468 1128 Address 4 FVSRDAFT addr of AFT last read from or zero if no open AFTs 046C 1132 Address 4 FVSWRAFT addr of AFT last written to or zero if no open AFTs 0470 1136 Address 4 FVSCFST addr of current FST 0474 1140 Address 4 FVSCHBA addr of current FST hyperblock 0478 1144 Signed 4 FVSLADU (16) Save area for DMSLADU 04B8 1208 Character 88 FVSLFSCP Copy of FST in a data space returned by FST Lookup (DMSLFS) 0510 1296 Signed 4 FVSMDBSZ Minidisk cache size in KB (Default is 8KB) 0514 1300 Bitstring 1 FVSMISCF Miscellaneous file system flags 1... .... FVSNORAS X'80' FVSNORAS Disable FST verification in DMSAUD 0515 1301 Bitstring 3 * Reserved for future IBM Use 0518 1304 Signed 4 * (3) Reserved for future IBM Use
 
 
  FVSECT Storage Layout Top of page
 
 
*** FVSECT - Fixed Variable Storage Work Area
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                       DISK$SEG                        =
*     |                           +---------------------------+
*     |                           |                           |
*     +---------------------------+                           |
*  40 |                                                       |
*     =                       REGSAV3                         =
*     |                                                       |
*     +-------------------------------------------------------+
*  78 |                                                       |
*     =                       RWFSTRG                         =
*     |                                                       |
*     +---------------------------+---------------------------+
*  C0 |         FVSBUFSZ          |         FVSDAFT           |
*     +---------------------------+---------------------------+
*  C8 |         FVSFSER           |         FVSFSSZ           |
*     +---------------------------+---------------------------+
*  D0 |///////////////////////////|                           |
*     +---------------------------+                           |
*  D8 |                                                       |
*     =                       REGSAV0                         =
*     |                                                       |
*     +--------------------+------+---------------------------+
* 110 |////////////////////|:COD0 |                           |
*     +--------------------+------+                           |
* 118 |                                                       |
*     =                       REGSAV1                         =
*     |                                                       |
*     +--------------------+------+---------------------------+
* 150 |////////////////////|:COD1 |          F65535           |
*     +--------------------+------+------+--------------------+
* 158 |           FW4             |:PAFLG|////////////////////|
*     +---------------------------+------+--------------------+
* 160 |           F100            |///////////////////////////|
*     +---------------------------+---------------------------+
* 168 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
* 170 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
* 178 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
* 180 |          DSKLOC           |          RWCNT            |
*     +---------------------------+---------------------------+
* 188 |          DSKADR           |          ADTADD           |
*     +---------------------------+---------------------------+
* 190 |         DSKPTRSZ          |         DSKCHAIN          |
*     +---------------------------+---------------------------+
* 198 |         DSKLOC2           |          RWCNT2           |
*     +---------------------------+---------------------------+
* 1A0 |         DSKADR2           |         ADTADD2           |
*     +---------------------------+---------------------------+
* 1A8 |         DSKPTRS2          |         DSKCHAI2          |
*     +---------------------------+---------------------------+
* 1B0 |                       FINISLST                        |
*     +-------------------------------------------------------+
* 1B8 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 1C0 |///////////////////////////////////////////////////////|
*     +-------------+-------------+-------------+-------------+
* 1C8 |/////////////|    FFF      |    FFE      |    FFD      |
*     +-------------+------+------+------+------+------+------+
* 1D0 |   SIGNAL    |:BUSY |KXFLAG|:FLG0 |:SAVE |:FLAG |:FLAG |
*     +-------------+------+------+------+------+------+------+
* 1D8 |         FVSERAS0          |         FVSERAS1          |
*     +---------------------------+---------------------------+
* 1E0 |         FVSERAS2          |         FVSERAS3          |
*     +---------------------------+---------------------------+
* 1E8 |         FVSERAS4          |         FVSERAS5          |
*     +---------------------------+---------------------------+
* 1F0 |///////////////////////////|         FVSERAS6          |
*     +---------------------------+---------------------------+
* 1F8 |                       FVSFSTN                         |
*     +-------------------------------------------------------+
* 200 |                       FVSFSTT                         |
*     +---------------------------+-------------+-------------+
* 208 |         FVSFSTDT          |  FVSFSTWP   |  FVSFSTRP   |
*     +-------------+-------------+-------------+------+------+
* 210 |  FVSFSTM    |  FVSFSTIC   |  FVSFSTCL   |:FSTFV|:FSTFB|
*     +-------------+-------------+-------------+------+------+
* 218 |         FVSFSTIL          |  FVSFSTDB   |  FVSFSTYR   |
*     +---------------------------+-------------+-------------+
* 220 |         FVSFSTAD          |         FVSFSTAC          |
*     +---------------------------+---------------------------+
* 228 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 230 |                         FVSN                          |
*     +-------------------------------------------------------+
* 238 |                         FVST                          |
*     +---------------------------+-------------+-------------+
* 240 |           FVSD            |   FVSWP     |   FVSRP     |
*     +-------------+-------------+-------------+------+------+
* 248 |    FVSM     |   FVSIC     |   FVSFCL    |FVSFV |FVSFB |
*     +-------------+-------------+-------------+------+------+
* 250 |          FVSIL            |   FVSDBC    |   FVSYR     |
*     +---------------------------+-------------+-------------+
* 258 |          FVSFOP           |         FVSADBC           |
*     +---------------------------+------+------+-------------+
* 260 |          FVSAIC           |:NLVL |:PTRSZ|   (266)-    |
*     +---------------------------+------+------+-------------+
* 268 |        -FVSADATI          |         FVSEDFEN          |
*     +---------------------------+---------------------------+
* 270
*
*** FVSECT - Fixed Variable Storage Work Area
 
*** Overlay for FVSEDFEN in FVSECT
*
*                                 +------+------+-------------+
* 268 ...                     26C |:REALM|:FLAG2|/////////////|
*                                 +------+------+-------------+
* 270
*
*** Overlay for FVSEDFEN in FVSECT
 
*** Overlay for FVSEDFEN in FVSECT
*
*                                 +---------------------------+
*     ...                     26C |         FVSOID-           |
*     +---------------------------+---------------------------+
* 270 |          -(26C)           |        FVSBFOID-          |
*     +---------------------------+------+------+------+------+
* 278 |          -(274)           |FVSFB1|FVSFB2|FVSFB3|//////|
*     +---------------------------+------+------+------+------+
* 280 |         FVSDSFOP          |      FVSDOLR       |//////|
*     +---------------------------+--------------------+------+
* 288 |                                                       |
*     =                       FVSDIOPL                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 300 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 340 |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 348 |         FVSFNSST          |///////////////////////////|
*     +---------------------------+///////////////////////////|
* 350 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 398 |                                                       |
*     =                       FVSACFR                         =
*     |                           +-------------+------+------+
* 3D0 |                           |/////////////|:FLG1 |:ACFE |
*     +---------------------------+-------------+------+------+
* 3D8 |                                                       |
*     =                       FVSACGR                         =
*     |                           +--------------------+------+
* 410 |                           |////////////////////|:ACGE |
*     +---------------------------+--------------------+------+
* 418 |                                                       |
*     =                        FVSLAD                         =
*     |                                                       |
*     +---------------------------+---------------------------+
* 458 |///////////////////////////|///////////////////////////|
*     +--------------------+------+---------------------------+
* 460 |////////////////////|//////|         FVSNUAFT          |
*     +--------------------+------+---------------------------+
* 468 |         FVSRDAFT          |         FVSWRAFT          |
*     +---------------------------+---------------------------+
* 470 |         FVSCFST           |         FVSCHBA           |
*     +---------------------------+---------------------------+
* 478 |                                                       |
*     =                       FVSLADU                         =
*     |                                                       |
*     +-------------------------------------------------------+
* 4B8 |                                                       |
*     =                       FVSLFSCP                        =
*     |                                                       |
*     +---------------------------+------+--------------------+
* 510 |         FVSMDBSZ          |:MISCF|////////////////////|
*     +---------------------------+------+--------------------+
* 518 |///////////////////////////////////////////////////////|
*     |///////////////////////////+---------------------------+
*     |///////////////////////////| 524
*     +---------------------------+
*
*** Overlay for FVSEDFEN in FVSECT
 
 
  FVSECT Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
ABNBIT         01D5 02
ADTADD         018C
ADTADD2        01A4
DIOBIT         01D5 08
DISK$SEG       0000
DSKADR         0188
DSKADR2        01A0
DSKCHAIN       0194
DSKCHAI2       01AC
DSKLEN         01AC 00000018
DSKLOC         0180
DSKLOC2        0198
DSKLST         0180
DSKLST2        0198
DSKPTRSZ       0190
DSKPTRS2       01A8
ERBIT          01D5 10
ERRCOD0        0113
ERRCOD1        0153
ERSCOPY        015C 80
ERSFLAG        01D7
FFD            01CE
FFE            01CC
FFF            01CA
FINISLST       01B0
FLGSAVE        01D5
FNBIT          01D5 20
FNSCOPY        015C 40
FVSAAFT        0458
FVSACCM0       01D4 01
FVSACFE        03D7
FVSACFR        0398
FVSACGE        0417
FVSACGR        03D8
FVSADATI       0266
FVSADBC        025C
FVSAIC         0260
FVSBFOID       0274
FVSBFOWN       0246 000FVSRP
FVSBUFSZ       00C0
FVSCDFMR       024A 000FVSIC
FVSCDOLR       027E 08
FVSCFST        0470
FVSCHBA        0474
FVSCNTRY       024F 08
FVSD           0240
FVSDAFT        00C4
FVSDBC         0254
FVSDIOPL       0288
FVSDIRN        0238 0000FVST
FVSDOLR        0284
FVSDSFOP       0280
FVSEDFEN       026C
FVSELMNL       0287 00000006
FVSELMNT       0287 00000005
FVSENDST       0287 00000090
FVSEPL         024F 20
FVSERAS0       01D8
FVSERAS1       01DC
FVSERAS2       01E0
FVSERAS3       01E4
FVSERAS4       01E8
FVSERAS5       01EC
FVSERAS6       01F4
FVSFACT        024F 07
FVSFAP         024F 01
FVSFAR         024F 04
FVSFAW         024F 02
FVSFB          024F
FVSFBSFS       024F 10
FVSFB1         027C
FVSFB1EX       027C 20
FVSFB1RD       027C 80
FVSFB1WR       027C 40
FVSFB2         027D
FVSFB2AL       027D 10
FVSFB2BF       027D 20
FVSFB2DC       027D 04
FVSFB2EO       027D 01
FVSFB2ER       027D 80
FVSFB2MG       027D 02
FVSFB2RV       027D 40
FVSFB2SD       027D 08
FVSFB3         027E
FVSFB3IP       027E 80
FVSFB3IV       027E 20
FVSFB3MA       027E 40
FVSFCL         024C
FVSFDATE       0266 FVSADATI
FVSFLAG        01D6
FVSFLAG2       026D
FVSFLG0        01D4
FVSFLG1        03D6
FVSFNSST       0348
FVSFOP         0258
FVSFRO         024F 00
FVSFROX        024F 40
FVSFRW         024F 80
FVSFRWX        024F C0
FVSFSER        00C8
FVSFSSZ        00CC
FVSFSTAC       0224
FVSFSTAD       0220
FVSFSTCL       0214
FVSFSTDB       021C
FVSFSTDT       0208
FVSFSTFB       0217
FVSFSTFV       0216
FVSFSTIC       0212
FVSFSTIL       0218
FVSFSTM        0210
FVSFSTN        01F8
FVSFSTRP       020E
FVSFSTT        0200
FVSFSTWP       020C
FVSFSTYR       021E
FVSFTIME       0266 FVSADATI
FVSFV          024E
FVSFVDIR       024E 000000C4
FVSFVERS       024E 00000060
FVSFVFIX       024E 000000C6
FVSFVVAR       024E 000000E5
FVSIC          024A
FVSIL          0250
FVSITAV        024F 40
FVSL           0256 00000028
FVSLAD         0418
FVSLADU        0478
FVSLFSCP       04B8
FVSL1          021E 00000028
FVSL2          026E 00000040
FVSL3          027F 00000050
FVSL4          0287 00000058
FVSM           0248
FVSMCHAR       0248 00000248
FVSMDBSZ       0510
FVSMISCF       0514
FVSMNUM        0248 00000249
FVSN           0230
FVSNDFST       0287 00000288
FVSNDSTD       0287 00000012
FVSNLVL        0264
FVSNORAS       0514 80
FVSNT          0230
FVSNUAFT       0464
FVSOID         026C
FVSPATCH       0340
FVSPIPEU       026D 10
FVSPTRSZ       0265
FVSPURC        03D6 40
FVSRDAFT       0468
FVSREALM       026C
FVSRECAV       024F 01
FVSRP          0246
FVSSCID        024C 00FVSFCL
FVSSEGC        03D6 80
FVST           0238
FVSTID         0256 000FVSYR
FVSWP          0244
FVSWRAFT       046C
FVSYR          0256
FWADDR         0188 80
FW4            0158
F100           0160
F65535         0154
HW4            0158 00000FW4
ITSBIT         01D5 01
KXFLAG         01D3
KXWANT         01D3 80
KXWSVC         01D3 01
NUCPAFLG       015C
REGSAV0        00D4
REGSAV1        0114
REGSAV3        003C
RWCNT          0184
RWCNT2         019C
RWFSTRG        0078
SIGNAL         01D0
STATEFST       01F8
STATER0        0220 FVSFSTAD
STATER1        0224 FVSFSTAC
STATFST2       0230
STTCOPY        015C 20
SWTCH          01D0 00SIGNAL
TRKLSAVE       0113 000000D4
UFDBUSY        01D2
UPBIT          01D5 40
WRBIT          01D5 80
 
This information is based on z/VM 6.4.0.
Last updated on 24 Aug 2016 at 09:21:34 EDT.
Copyright IBM Corporation, 1990, 2016