|
Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
DBCWK
Control Block Contents
DBCWK DSECT
Cross Reference (Contains links to field and bit definitions)
DBCWK Prolog
NAME : HCPDBCWK
DESCRIPTION: DASD Block I/O work block
DSECT : DBCWK
FUNCTION : Contains information specific to DASD block
I/O requests. It is basically a work area
for HCPDBC and it is also now used as the control
block to represent the current state of a
particular Diagnose 250 or *BLOCKIO (request).
(The SNDBK and BRQBK used to fulfill these
roles, any fields in those control blocks
now reside here).
Since a number fields are specific to the particular
i/o request, there is an overlay portion of this control
block at label DBCSPECL. The overlays are defined in
here and there is an overlay for each type of i/o.
LOCATED BY : This is pointed to by R13 in all of the
block i/o handlers (HCPBIM, HCPBIR, HCPDGB
HCPBID, HCPDGD, HCPDBC and HCPDBD).
CREATED BY : HCPDGB (Diag A4 handling)
HCPBIM (*BLOCKIO handling)
HCPBID (Diag 250 handling)
HCPDGD (Diag 18 handling)
DELETED BY : HCPDGB (Diag A4 handling)
HCPBIM (*BLOCKIO handling)
HCPBID or HCPBIR (Diag 250 handling)
HCPDGD (Diag 18 handling)
RELOCATION CONSIDERATIONS : None
COMMENTS : The DBCWK area contains one BPLBK (DBCSINGL) and one
IPARML Reply (DBCPARML). If the size of either of
these control blocks changes, then DBCSINGL and
DBCPARML should be updated accordingly.
DBCWK Control Block Content
DBCWK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure DBCWK DASD Block I/O work block 0000 0 Dbl-Word 8 * (64) Space for standard saveBK 0200 512 Dbl-Word 8 DBCIASIT I-ASIT for the SBIOP/SBILIST/BPLBK and guest buffers. Work area can be used as a temporary save area by any routine that needs to save something temporarily. The general rule of thumb is that a value stored in DBCWORK is only used within the subroutine that stored it there, any exceptions to this rule are noted in the code. 0208 520 Dbl-Word 8 DBCWORK (0) Temporary work area 0208 520 Signed 4 DBCWORK1 Work word 1 020C 524 Signed 4 DBCWORK2 Work word 2 0210 528 Signed 4 DBCWORK3 Work word 3 0214 532 Signed 4 DBCWORK4 Work word 4 The following 4 bytes (1 word) are used to hold various processing bits common to all types of block i/o. 0218 536 Bitstring 1 DBCSWTCH Flags for processing control 1... .... DBCGOOD X'80' At least one good i/o .1.. .... DBCNSTD X'40' Nonstandard block size ..1. .... DBCNOCAR X'20' No caching requested ...1 .... DBCWRITE X'10' Type of I/O 1 for read, 0 for write .... 1... DBCCACC X'08' Cache access held .... .1.. DBCINCAC X'04' This I/O operation is no longer eligible for caching .... ..1. DBCARMOD X'02' In AR Mode .... ...1 DBCPRIM X'01' Parameter list in primary 0219 537 Bitstring 1 DBCSWTC2 More flags for processing 1... .... DBCNOTEL X'80' DBCNOTEL Not eligible for cache .1.. .... DBCBLKER X'40' DBCBLKER Found block in error ..1. .... DBCREPLP X'20' DBCREPLP Must replace Parm List ...1 .... DBCCOPYP X'10' DBCCOPYP Made copy of Parm list .... 1... DBCASYNC X'08' DBCASYNC Asynchronous blockio .... .1.. DBCDG250 X'04' DBCDG250 DIAG 250 i/o .... ..1. DBCBLKIO X'02' DBCBLKIO *BLOCKIO i/o .... ...1 DBCDGA4 X'01' DBCDGA4 DIAGA4 i/o DBCGKEY has key for storage protection checks 021A 538 Bitstring 1 DBCGKEY Storage key 021B 539 Bitstring 1 DBCSWTC4 More processing bits 1... .... DBCGLDEL X'80' DBCGLDEL All track deletion req. .1.. .... DBCNOREL X'40' DBCNOREL Don't release on read ..1. .... DBCRDCPY X'20' DBCRDCPY Read access must copy data ...1 .... DBCARGST X'10' DBCARGST Guest in AR mode .... 1... DBCSAWWR X'08' DBCSAWWR At least 1 write in req. .... .1.. DBCWFAIL X'04' DBCWFAIL At least 1 write failed .... ..1. DBCXSTOR X'02' DBCXSTOR Cache block on XSTOR .... ...1 DBCDIDIO X'01' DBCDIDIO Did I/O for this request 021C 540 Signed 4 DBCSAV original SAVBK address The DBCHALET is used for the block list control block for the particular type of block i/o request. 0220 544 Signed 4 DBCHALET ALET for guest space (CP) 0224 548 Signed 4 DBCEALET Guest version of ALET. 0228 552 Signed 4 DBCERET Return address save 022C 556 Signed 4 DBCERET2 2'nd level return address save 0230 560 Signed 4 DBCDPSBK DPSBK Address 0234 564 Signed 4 DBCANCHR BIOPG page list anchor The following fields used to be in a separate control block called a DVCPL. They are now placed here to avoid having to load up its address all the time. 0238 568 Signed 4 DBCHFRST Beginning of DVIENTRY linked list 023C 572 Signed 4 DBCHLAST End of DVIENTRY linked list 0240 576 Address 4 DBCOPPTR Beginning of DVIOP linked list 0244 580 Signed 4 DBCTFRST DVTRK (tracks accessed) list 0248 584 Address 4 DBCLCKAD Address of lock word 024C 588 Signed 4 DBCMAXCH Max channel program size 0250 592 Signed 4 DBCKEY Key save area 0254 596 Signed 4 * Reserved for future IBM use 0258 600 Dbl-Word 8 DBCBKNUM Block number save area 0260 608 Signed 4 DBCDVC DBC/DBE - ptr to DVIENTRY DGB/DGD - ptr to DVIOP 0264 612 Signed 4 DBCTKPTR Pointer to previous DVTRK 0268 616 Signed 4 DBCRTRAK Relative track save area 026C 620 Signed 4 DBCTCHBK Last Read TCHBK Addr 0270 624 Signed 4 DBCMXENT Max entry count 0274 628 Signed 4 DBCERRAD Address where a host storage error occurred on parameter list. The following fields are the CDATA word and the DPSBK information from the currently-in-use track, by that we mean that it is the one we will next try to copy data to/from. 0278 632 Signed 4 DBCTKDAT (0) Data for current track 0278 632 Signed 4 DBCCDATA (0) TCHBK save 0278 632 Signed 2 DBCVCYL Virtual cylinder 027A 634 Bitstring 1 DBCFSTRN First record number 027B 635 Bitstring 1 DBCLOWRN Low record number 027C 636 Signed 4 * (0) 027C 636 Bitstring 1 * Reserved for IBM use 027D 637 Bitstring 3 DBCDPSTF (0) DPSBK stuff we care about 027D 637 Bitstring 1 DBCHIRN Highest record number 027E 638 Signed 2 DBCTKSIZ Blocksize of track 00000002 DBCTKLEN (*-DBCTKDAT+3)/4 Size in words of track data The following field is the read copy of the data. We only have 1 read track accessed at any given time, yet for *BLOCKIO and DIAG 250 we may have mixed reads and writes. So if we get write access to a track, then we copy the read data to this temporary save area. Then, if we later read from the current read track, then we can just copy the data back instead of going through a re-access of the track. 0280 640 Signed 4 DBCRDSAV (2) Read save area 0288 648 Signed 4 DBCBLKCT Remember block count 028C 652 Signed 4 DBCRC Return code save area 0290 656 Signed 2 DBCBLKSZ Block size 0292 658 Signed 2 DBCHSID Hash id for cache 0294 660 Signed 2 DBCOFSET OFFSET into track 0296 662 Signed 2 DBCDBICT Count of DBIRQ blocks sent to HCPIOS 0298 664 Signed 4 DBCDVIAD Pointer to next DVIOP to schedule for these i/o oper. 029C 668 Address 4 DBCNEXT Pointer to next DBCWK for this virtual device 02A0 672 Signed 4 DBCRELRT Release return address 02A4 676 Signed 4 DBCMALET ALET FOR MDC address space for last track accessed 02A8 680 Signed 4 * (0) 02A8 680 Bitstring 1 DBCSWTC5 More processing bits 1... .... DBCDG18 X'80' DBCDG18 Processing a Diag X'18' 02A9 681 Bitstring 1 * Reserved for IBM use 02AA 682 Signed 2 DBCTMPH Tempary half word savearea 02AC 684 Signed 4 * Reserved for IBM use 02B0 688 Dbl-Word 8 DBCSPECL (0) 02B0 688 Dbl-Word 8 * (10) Overlay area, note that this leaves room for service. 00000060 DBCWKLEN (*-DBCWK+7)/8 Size in double words DIAGNOSE 18 Specific fields Are overlayed at label DBCSPECL. 02B0 688 Dbl-Word 8 DBCSVCCW Host copy of CCW DBCARGSV has BBCCHH of first SEEK in CCW program and the relocated CC address for the minidisk. 02B8 696 Dbl-Word 8 DBCARGSV (0) First SEEK arguments 02B8 696 Signed 2 DBCARGBB BB portion of seek 02BA 698 Signed 2 DBCARGCC CC portion of seek 02BC 700 Signed 2 DBCARGHH HH portion of seek 02BE 702 Signed 2 DBCCYLSV Relocated CC of seek DBCNXTSV has BBCCHH of latest SEEK in CCW program 02C0 704 Dbl-Word 8 DBCNXTSV (0) Latest SEEK arguments 02C0 704 Signed 2 DBCNXTBB BB portion of seek 02C2 706 Signed 2 DBCNXTCC CC portion of seek 02C4 708 Signed 2 DBCNXTHH HH portion of seek 02C6 710 Signed 2 * Reserved for IBM use DBCORIEN has the latest record orientation information in it. It has the CCHHR of the last record that we read from the cache. 02C8 712 Bitstring 5 DBCORIEN (0) Latest SIDE arguments 02C8 712 Signed 2 DBCORICC CC of SIDE 02CA 714 Signed 2 DBCORIHH HH of SIDE 02CC 716 Bitstring 1 DBCORIR R of SIDE 02CD 717 Bitstring 1 DBC18SWT More flags 1... .... DBCFIRST X'80' DBCFIRST Working on first CCW .1.. .... DBCBUSYV X'40' DBCBUSYV Made the VDEV busy ..1. .... DBCSILI X'20' DBCSILI SILI bit on ...1 .... DBCMIXED X'10' DBCMIXED Mixed blocksizes found .... 1... DBCREMOV X'08' DBCREMOV Can remove DVIENTRYs .... .1.. DBCSTD X'04' DBCSTD Track is standard .... ..1. DBCEOT X'02' DBCEOT Reached End of Track 02CE 718 Signed 2 DBCMAXSZ Max block size found 02D0 720 Signed 4 DBCIORAD IORBK save address 02D4 724 Signed 4 DBCGCCW Guest CCW Address 02D8 728 Signed 4 DBCCCWCT CCW count 02DC 732 Signed 4 DBCCYLTK Relative track for cyl 02E0 736 Signed 4 DBCSEKPT Last SearchID DVIENTRY 02E4 740 Signed 4 DBCCPSPT Last C.P.S. Pointer 02E8 744 Signed 4 DBCTKHED Track pointer 02EC 748 Signed 4 DBC18RC Diag 18 return code 02F0 752 Signed 4 * (4) Reserved for IBM use DIAGNOSE A4 Specific fields Are overlayed at label DBCSPECL. 02B0 688 Bitstring 1 DBCA4SWT More flags 1... .... DBCVDEV X'80' DBCVDEV Got the VDEV lock to be copied back to guest storage. .1.. .... DBCBUSY X'40' DBCBUSY We turned on VDEVBUSY ..1. .... DBCREPS X'20' DBCREPS SBIOP must be replaced on exit ...1 .... DBCFORMT X'10' DBCFORMT Request type format .... 1... DBCINIOR X'08' DBCINIOR Initialized IORBK .... .1.. DBCCOPYS X'04' DBCCOPYS SBIOP was copied to host stor .... ..1. DBCQDSK X'02' DBCQDSK Have Vdisk I/O lock .... ...1 DBCBKOUT X'01' DBCBKOUT End-user breakout enabled 02B1 689 Bitstring 1 DBCARNUM ARx access register 02B2 690 Bitstring 1 DBCLPM Guest LPM 02B3 691 Bitstring 1 * Reserved for IBM use 02B4 692 Signed 4 DBCAR9 Save for current ALET 02B8 696 Signed 4 DBCPROG Prog check operand 02BC 700 Signed 4 DBCIORBK IORBK save address 02C0 704 Signed 4 DBCBLKPR Blocks processed 02C4 708 Signed 4 DBCSBIOP Address of SBIOP 02C8 712 Signed 4 DBCGADDR Guest addr of SBIOP 02CC 716 Signed 4 * Reserved for IBM use 02D0 720 Signed 4 DBCGLIST SBILIST guest address 02D4 724 Signed 4 * (11) Reserved for IBM use DIAGNOSE A4 Format specific fields are overlayed at label DBCGLIST. 02D0 720 Dbl-Word 8 DBCFBLKS SBIFBLKS 02D8 728 Dbl-Word 8 DBCDIDBK SBIDIDBK 02E0 736 Dbl-Word 8 DBCFDATA SBIFDATA 02E8 744 Dbl-Word 8 DBCLBA SBILBA 02F0 752 Signed 4 * (4) Reserved for IBM use DIAGNOSE 250 Specific fields are overlayed at label DBCSPECL. The following is an address space buffer. It holds the latest address space info on a guest buffer specified in the BELBK entry. I.E. It holds the latest BELBALET and the associated things that we care about. A non-zero entry indicates that we have access to the data space containing the buffer. A zero entry means that there is no address space attached for a given BELBK entry. 02B0 688 Dbl-Word 8 DBCBASIT BELBK I-asit Address 02B8 696 Signed 4 DBCBKIBK BKIBK address 02BC 700 Address 4 DBCHALBK Address of the host-ART lookaside block containing the ALET/i-ASIT pairs associated with the data buffers in the BELBK entries. 02C0 704 Bitstring 1 DBCDOPER Operation field for the DIAG X'250' request 1... .... DBCABSET X'80' Abort exit was established .1.. .... DBCABORT X'40' Abort exit was driven ..1. .... DBCASYRQ X'20' Guest requested asynchronous processing. ...1 .... DBCBYPAS X'10' Guest requested that we bypass minidisk cache .... 1... DBCBELST X'08' The BELBK could not be stored for the completion of an asynchronous request. .... .1.. DBC64BIT X'04' Diag 250 guest used large fields in BIOPL and BELBK. 02C1 705 Bitstring 1 DBCFLAGS More processing flags 1... .... DBCBELGT X'80' DBCBELGT Used GETST to get BELBK .1.. .... DBCGTHAL X'40' DBCGTHAL Used GETST to get HALBK 02C2 706 Bitstring 1 DBC250RC Return code for request processing .... .... DBCRC00 X'00' A synchronous request was successful (either scheduled and completed, or from cache) or an asynchronous request was successfully satisfied from cache. .... 1... DBCRC08 X'08' An asynchronous request was initiated (all or part of the I/O was scheduled). .... 11.. DBCRC12 X'0C' A request was partially successful. If asynchronous, part of the request was satisfied from cache, but an error occurred preventing the entire request from completing successfully. ..1. 1... DBCRC40 X'28' All of the BELBK entries were in error, or all DVIOPs were in error. ..1. 11.. DBCRC44 X'2C' Remove or reset terminated a synchronous request. ..11 .... DBCRC48 X'30' A synchronous request was terminated by the user (the abort exit was driven). 1111 1111 DBCRC255 X'FF' A catastrophic error (abend condition) occurred. Some I/O may have been scheduled or done. 02C3 707 Bitstring 1 * Reserved for IBM use 02C4 708 Signed 2 DBCBELCT Number of entries in the block I/O entry list 02C6 710 Signed 2 * Reserved for IBM use 02C8 712 Signed 4 * Reserved for IBM use 02CC 716 Address 4 DBCBELBK 31 bit host logical address of the block I/O entry list. 02D0 720 Address 8 DBCGBELA 64 bit guest absolute address of the block I/O entry list. 02D8 728 Dbl-Word 8 DBCIPARM (0) Interruption parameter, if this is an asynchronous request. 02D8 728 Signed 4 * High half of 64 bit PARM 02DC 732 Signed 4 DBCIPARM32 Low half of 64 bit PARM or 32 bit PARM 02E0 736 Dbl-Word 8 DBCOFFCP Offset for block number - this is a copy of BKIOFFCP 02E8 744 Signed 4 * (6) Reserved for IBM use **BLOCKIO Specific fields are overlayed at label DBCSPECL. DBCSINGL contains a BPLBK, so any changes to the BPLBK size affect this field. NOTES : Currently the BPLBK is 4F, but the last 1F is unused, so using 3F for DBCSINGL works (and is all we can fit in DBCSPECL at this time). 02B0 688 Signed 4 DBCSINGL (3) Storage for a single block I/O version of the multiple block I/O parameter list Mapped by HCPBPLBK 02BC 700 Signed 4 DBCBLKAD BLKIO address 02C0 704 Bitstring 1 DBCBOPER Operation field for SEND Request 1... .... DBCMONO X'80' DBCMONO Indicate Single BLK SEND REQ Protocol .1.. .... DBCMULTI X'40' DBCMULTI Indicate Multi BLK SEND REQ Protocol ..1. .... DBCIWAIT X'20' DBCIWAIT Indicate waiting for I/O interrupts ...1 .... DBCSYNC X'10' DBCSYNC Guest request is synchronous .... 1... DBCGOTBL X'08' DBCGOTBL got storage for blockio list .... .1.. DBCSEXIT X'04' DBCSEXIT Exitted to caller already DBCBLKRC codes are defined in HCPBIM 02C1 705 Bitstring 1 DBCBLKRC IUCV Reply Return Code 02C2 706 Signed 2 DBCSSHCT Number of real SSCH issued to handle this send request. 02C4 708 Signed 4 DBCMSGID IUCV message id 02C8 712 Signed 4 DBCTRGCL (0) IUCV target class 02C8 712 Bitstring 3 * IUCV target class 02CB 715 Bitstring 1 DBCBLKRQ Blockio service request 1... .... DBCBLKNC X'80' DBCBLKNC Bypass MDC processing .... ..11 DBCBLKMB X'03' DBCBLKMB Multi-block request .... ..1. DBCBLKRD X'02' DBCBLKRD Single block read .... ...1 DBCBLKWR X'01' DBCBLKWR Single block write 02CC 716 Address 4 DBCPLADR Address of the multiple block parameter list in host logical storage 02D0 720 Signed 4 DBCGPLST Guest address of the multiple block DBCPARML houses an IPARML, so any changes to the IPARML size affect this field. 02D4 724 Bitstring 40 DBCPARML IUCV reply parameter list 00FFFF7C DBCTCMSK X'FFFFFFFF'-(DBCBLKNC+DBCBLKMB) Mask to validate DBCTRGCL (IUCV target class) 02FC 764 Signed 2 DBCPLCNT Count of elements in the multiple block parameter list 02FE 766 Signed 2 DBCPLSIZ Size of the multiple block parameter list in bytes
DBCWK Storage Layout
*** DBCWK - DASD Block I/O work block
*
* +-------------------------------------------------------+
* 0 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 200 | DBCIASIT |
* +---------------------------+---------------------------+
* 208 | DBCWORK1 | DBCWORK2 |
* +---------------------------+---------------------------+
* 210 | DBCWORK3 | DBCWORK4 |
* +------+------+------+------+---------------------------+
* 218 |:SWTCH|:SWTC2|:GKEY |:SWTC4| DBCSAV |
* +------+------+------+------+---------------------------+
* 220 | DBCHALET | DBCEALET |
* +---------------------------+---------------------------+
* 228 | DBCERET | DBCERET2 |
* +---------------------------+---------------------------+
* 230 | DBCDPSBK | DBCANCHR |
* +---------------------------+---------------------------+
* 238 | DBCHFRST | DBCHLAST |
* +---------------------------+---------------------------+
* 240 | DBCOPPTR | DBCTFRST |
* +---------------------------+---------------------------+
* 248 | DBCLCKAD | DBCMAXCH |
* +---------------------------+---------------------------+
* 250 | DBCKEY |///////////////////////////|
* +---------------------------+---------------------------+
* 258 | DBCBKNUM |
* +---------------------------+---------------------------+
* 260 | DBCDVC | DBCTKPTR |
* +---------------------------+---------------------------+
* 268 | DBCRTRAK | DBCTCHBK |
* +---------------------------+---------------------------+
* 270 | DBCMXENT | DBCERRAD |
* +-------------+------+------+------+------+-------------+
* 278 | DBCVCYL |:FSTRN|:LOWRN|//////|:HIRN | DBCTKSIZ |
* +-------------+------+------+------+------+-------------+
* 280 | DBCRDSAV |
* +---------------------------+---------------------------+
* 288 | DBCBLKCT | DBCRC |
* +-------------+-------------+-------------+-------------+
* 290 | DBCBLKSZ | DBCHSID | DBCOFSET | DBCDBICT |
* +-------------+-------------+-------------+-------------+
* 298 | DBCDVIAD | DBCNEXT |
* +---------------------------+---------------------------+
* 2A0 | DBCRELRT | DBCMALET |
* +------+------+-------------+---------------------------+
* 2A8 |:SWTC5|//////| DBCTMPH |///////////////////////////|
* +------+------+-------------+---------------------------+
* 2B0 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 300
*
*** DBCWK - DASD Block I/O work block
*** Overlay for DBCSPECL in DBCWK
*
* +-------------------------------------------------------+
* 2B0 | DBCSVCCW |
* +-------------+-------------+-------------+-------------+
* 2B8 | DBCARGBB | DBCARGCC | DBCARGHH | DBCCYLSV |
* +-------------+-------------+-------------+-------------+
* 2C0 | DBCNXTBB | DBCNXTCC | DBCNXTHH |/////////////|
* +-------------+-------------+------+------+-------------+
* 2C8 | DBCORICC | DBCORIHH |:ORIR |:18SWT| DBCMAXSZ |
* +-------------+-------------+------+------+-------------+
* 2D0 | DBCIORAD | DBCGCCW |
* +---------------------------+---------------------------+
* 2D8 | DBCCCWCT | DBCCYLTK |
* +---------------------------+---------------------------+
* 2E0 | DBCSEKPT | DBCCPSPT |
* +---------------------------+---------------------------+
* 2E8 | DBCTKHED | DBC18RC |
* +---------------------------+---------------------------+
* 2F0 |///////////////////////////////////////////////////////|
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 300
*
*** Overlay for DBCSPECL in DBCWK
*** Overlay for DBCSPECL in DBCWK
*
* +------+------+------+------+---------------------------+
* 2B0 |:A4SWT|:ARNUM|DBCLPM|//////| DBCAR9 |
* +------+------+------+------+---------------------------+
* 2B8 | DBCPROG | DBCIORBK |
* +---------------------------+---------------------------+
* 2C0 | DBCBLKPR | DBCSBIOP |
* +---------------------------+---------------------------+
* 2C8 | DBCGADDR |///////////////////////////|
* +---------------------------+---------------------------+
* 2D0 | DBCGLIST |///////////////////////////|
* +---------------------------+///////////////////////////|
* 2D8 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 300
*
*** Overlay for DBCSPECL in DBCWK
*** Overlay for DBCGLIST in DBCWK
*
* +-------------------------------------------------------+
* 2D0 | DBCFBLKS |
* +-------------------------------------------------------+
* 2D8 | DBCDIDBK |
* +-------------------------------------------------------+
* 2E0 | DBCFDATA |
* +-------------------------------------------------------+
* 2E8 | DBCLBA |
* +-------------------------------------------------------+
* 2F0 |///////////////////////////////////////////////////////|
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 300
*
*** Overlay for DBCGLIST in DBCWK
*** Overlay for DBCSPECL in DBCWK
*
* +-------------------------------------------------------+
* 2B0 | DBCBASIT |
* +---------------------------+---------------------------+
* 2B8 | DBCBKIBK | DBCHALBK |
* +------+------+------+------+-------------+-------------+
* 2C0 |:DOPER|:FLAGS|:250RC|//////| DBCBELCT |/////////////|
* +------+------+------+------+-------------+-------------+
* 2C8 |///////////////////////////| DBCBELBK |
* +---------------------------+---------------------------+
* 2D0 | DBCGBELA |
* +---------------------------+---------------------------+
* 2D8 |///////////////////////////| DBCIPARM32 |
* +---------------------------+---------------------------+
* 2E0 | DBCOFFCP |
* +-------------------------------------------------------+
* 2E8 |///////////////////////////////////////////////////////|
* =///////////////////////////////////////////////////////=
* |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 300
*
*** Overlay for DBCSPECL in DBCWK
*** Overlay for DBCSPECL in DBCWK
*
* +-------------------------------------------------------+
* 2B0 | DBCSINGL |
* | +---------------------------+
* 2B8 | | DBCBLKAD |
* +------+------+-------------+---------------------------+
* 2C0 |:BOPER|:BLKRC| DBCSSHCT | DBCMSGID |
* +------+------+------+------+---------------------------+
* 2C8 |////////////////////|:BLKRQ| DBCPLADR |
* +--------------------+------+---------------------------+
* 2D0 | DBCGPLST | |
* +---------------------------+ |
* 2D8 | |
* = DBCPARML =
* | +-------------+-------------+
* 2F8 | | DBCPLCNT | DBCPLSIZ |
* +---------------------------+-------------+-------------+
* 300
*
*** Overlay for DBCSPECL in DBCWK
DBCWK Cross Reference
Symbol Dspl Value -------------- ---- ----- DBCABORT 02C0 40 DBCABSET 02C0 80 DBCANCHR 0234 DBCARGBB 02B8 DBCARGCC 02BA DBCARGHH 02BC DBCARGST 021B 10 DBCARGSV 02B8 DBCARMOD 0218 02 DBCARNUM 02B1 DBCAR9 02B4 DBCASYNC 0219 08 DBCASYRQ 02C0 20 DBCA4SWT 02B0 DBCBASIT 02B0 DBCBELBK 02CC DBCBELCT 02C4 DBCBELGT 02C1 80 DBCBELST 02C0 08 DBCBKIBK 02B8 DBCBKNUM 0258 DBCBKOUT 02B0 01 DBCBLKAD 02BC DBCBLKCT 0288 DBCBLKER 0219 40 DBCBLKIO 0219 02 DBCBLKMB 02CB 03 DBCBLKNC 02CB 80 DBCBLKPR 02C0 DBCBLKRC 02C1 DBCBLKRD 02CB 02 DBCBLKRQ 02CB DBCBLKSZ 0290 DBCBLKWR 02CB 01 DBCBOPER 02C0 DBCBUSY 02B0 40 DBCBUSYV 02CD 40 DBCBYPAS 02C0 10 DBCCACC 0218 08 DBCCCWCT 02D8 DBCCDATA 0278 DBCCOPYP 0219 10 DBCCOPYS 02B0 04 DBCCPSPT 02E4 DBCCYLSV 02BE DBCCYLTK 02DC DBCDBICT 0296 DBCDGA4 0219 01 DBCDG18 02A8 80 DBCDG250 0219 04 DBCDIDBK 02D8 DBCDIDIO 021B 01 DBCDOPER 02C0 DBCDPSBK 0230 DBCDPSTF 027D DBCDVC 0260 DBCDVIAD 0298 DBCEALET 0224 DBCEOT 02CD 02 DBCERET 0228 DBCERET2 022C DBCERRAD 0274 DBCFBLKS 02D0 DBCFDATA 02E0 DBCFIRST 02CD 80 DBCFLAGS 02C1 DBCFORMT 02B0 10 DBCFSTRN 027A DBCGADDR 02C8 DBCGBELA 02D0 DBCGCCW 02D4 DBCGKEY 021A DBCGLDEL 021B 80 DBCGLIST 02D0 DBCGOOD 0218 80 DBCGOTBL 02C0 08 DBCGPLST 02D0 DBCGTHAL 02C1 40 DBCHALBK 02BC DBCHALET 0220 DBCHFRST 0238 DBCHIRN 027D DBCHLAST 023C DBCHSID 0292 DBCIASIT 0200 DBCINCAC 0218 04 DBCINIOR 02B0 08 DBCIORAD 02D0 DBCIORBK 02BC DBCIPARM 02D8 DBCIPARM32 02DC DBCIWAIT 02C0 20 DBCKEY 0250 DBCLBA 02E8 DBCLCKAD 0248 DBCLOWRN 027B DBCLPM 02B2 DBCMALET 02A4 DBCMAXCH 024C DBCMAXSZ 02CE DBCMIXED 02CD 10 DBCMONO 02C0 80 DBCMSGID 02C4 DBCMULTI 02C0 40 DBCMXENT 0270 DBCNEXT 029C DBCNOCAR 0218 20 DBCNOREL 021B 40 DBCNOTEL 0219 80 DBCNSTD 0218 40 DBCNXTBB 02C0 DBCNXTCC 02C2 DBCNXTHH 02C4 DBCNXTSV 02C0 DBCOFFCP 02E0 DBCOFSET 0294 DBCOPPTR 0240 DBCORICC 02C8 DBCORIEN 02C8 DBCORIHH 02CA DBCORIR 02CC DBCPARML 02D4 DBCPLADR 02CC DBCPLCNT 02FC DBCPLSIZ 02FE DBCPRIM 0218 01 DBCPROG 02B8 DBCQDSK 02B0 02 DBCRC 028C DBCRC00 02C2 00 DBCRC08 02C2 08 DBCRC12 02C2 0C DBCRC255 02C2 FF DBCRC40 02C2 28 DBCRC44 02C2 2C DBCRC48 02C2 30 DBCRDCPY 021B 20 DBCRDSAV 0280 DBCRELRT 02A0 DBCREMOV 02CD 08 DBCREPLP 0219 20 DBCREPS 02B0 20 DBCRTRAK 0268 DBCSAV 021C DBCSAWWR 021B 08 DBCSBIOP 02C4 DBCSEKPT 02E0 DBCSEXIT 02C0 04 DBCSILI 02CD 20 DBCSINGL 02B0 DBCSPECL 02B0 DBCSSHCT 02C2 DBCSTD 02CD 04 DBCSVCCW 02B0 DBCSWTCH 0218 DBCSWTC2 0219 DBCSWTC4 021B DBCSWTC5 02A8 DBCSYNC 02C0 10 DBCTCHBK 026C DBCTCMSK 02D4 00FFFF7C DBCTFRST 0244 DBCTKDAT 0278 DBCTKHED 02E8 DBCTKLEN 027E 00000002 DBCTKPTR 0264 DBCTKSIZ 027E DBCTMPH 02AA DBCTRGCL 02C8 DBCVCYL 0278 DBCVDEV 02B0 80 DBCWFAIL 021B 04 DBCWKLEN 02B0 00000060 DBCWORK 0208 DBCWORK1 0208 DBCWORK2 020C DBCWORK3 0210 DBCWORK4 0214 DBCWRITE 0218 10 DBCXSTOR 021B 02 DBC18RC 02EC DBC18SWT 02CD DBC250RC 02C2 DBC64BIT 02C0 04
Copyright IBM Corporation, 1990, 2011