TCB mapping

Table 1. Structure TCBFIX
Offset
Dec		 Offset
Hex		 Type Len Name(Dim) Description
-32 (-20) STRUCTURE 0 TCBFIX , - TCBPTR-32
-32 (-20) CHARACTER 32  TCBFRS(0) - FLOATING POINT REGISTER SAVE AREA
-32 (-20) DBL WORD 8  TCBFRS0 - SAVE AREA FOR FLOATING POINT REGISTER 0
-24 (-18) DBL WORD 8  TCBFRS2 - SAVE AREA FOR FLOATING POINT REGISTER 2
-16 (-10) DBL WORD 8  TCBFRS4 - SAVE AREA FOR FLOATING POINT REGISTER 4
-8 (-8) DBL WORD 8  TCBFRS6 - SAVE AREA FOR FLOATING POINT REGISTER 6
-8 (-8) X'20' 0  TCBPXLEN "*-TCBFIX" LENGTH OF PREFIX SECTION 
               TCB PROPER
0 (0) DBL WORD 8   (0)  
0 (0) X'20' 0  TCB "*" - TCBPTR
0 (0) ADDRESS 4  TCBRBP - ADDRESS OF THE RB FOR EXECUTING PROGRAM. THIS OFFSET FIXED BY ARCHITECTURE.
4 (4) ADDRESS 4  TCBPIE - Address of current PIE/EPIE. This field may be tested for zero to determine that there currently is no SPIE/ESPIE exit established for this task Ownership: RTM Serialization: Local Lock
8 (8) ADDRESS 4  TCBDEB - ADDRESS OF THE DEB QUEUE
12 (C) ADDRESS 4  TCBTIO - ADDRESS OF THE TASK I/O TABLE (TIOT)
16 (10) BITSTRING 4  TCBCMP(0) - TASK COMPLETION CODE AND INDICATORS
16 (10) BITSTRING 1  TCBCMPF - INDICATOR FLAGS
      1... ....  TCBCREQ "X'80'" - A DUMP HAS BEEN REQUESTED
      .1.. ....  TCBCSTEP "X'40'" - A STEP ABEND HAS BEEN REQUESTED
      ..1. ....  TCBCPP "X'20'" - SOME PROBLEM PROGRAM STORAGE WAS OVERLAID BY THE SECOND LOAD OF ABEND. A FIRST LOAD OVERLAY IS INDICATED IN TCBFLGS FIELD (OFFSET 29 DECIMAL). (OS/VS1)
      ..1. ....  TCBDMPO "X'20'" - DUMP OPTIONS WERE PROVIDED ON CALLRTM OR SETRP MACRO
      ...1 ....  TCBSTCC "X'10'" - COMPLETION CODE IS NOT TO BE STORED IN TCBCMPC (OFFSET 17 DECIMAL) IF AN ABEND IS ENCOUNTERED. THIS IS TO PREVENT AN OVERLAY OF THE ORIGINAL COMPLETION CODE. (OS/VS1)
      ...1 ....  TCBNOCC "X'10'" - A COMPLETION CODE WAS NOT PROVIDED ON CALLRTM MACRO. A DEFAULT CODE IS BEING USED.
      .... 1...  TCBCDBL "X'08'" - A DOUBLE ABEND HAS OCCURRED (OS/VS1)
      .... 1...  TCBCASID "X'08'" - ABEND WAS SCHEDULED VIA CROSS MEMORY ABTERM
      .... .1..  TCBCWTO "X'04'" - A DUMP MESSAGE (WTO) IS TO BE ISSUED TO THE OPERATOR (OS/VS1)
      .... .1..  TCBRV316 "X'04'" - INDICATES REASON CODE (TCBARC) IS VALID
      .... ..1.  TCBCIND "X'02'" - ABEND TO OUTPUT AN INDICATIVE DUMP (OS/VS1)
      .... ...1  TCBCMSG "X'01'" - AN ABEND MESSAGE IS PROVIDED TO BE PRINTED BY ABDUMP (OS/VS1)
17 (11) BITSTRING 3  TCBCMPC - SYSTEM COMPLETION CODE IN FIRST 12 BITS, USER COMPLETION CODE IN LAST 12 BITS
20 (14) ADDRESS 4  TCBTRN(0) - ADDRESS OF TESTRAN CONTROL CORE TABLE
20 (14) BITSTRING 1  TCBABF - FLAG BYTE
      1... ....  TCBMOD91 "X'80'" - BOTH TESTRAN AND DECIMAL SIMULATOR ON A MOD 91
      .1.. ....  TCBNOCHK "X'40'" - SUPPRESS TAKING CHECKPOINTS FOR THIS STEP (JOB STEP TCB)
      ..1. ....  TCBGRPH "X'20'" - GAM/SP ACTIVE FOR THIS TASK
      ...1 ....  TCB_REFRPROT_OVERRIDE "X'10'" - Even if the REFRPROT option is active, do not apply REFRPROT rules to LOADs under this task.
      .... 1...  TCBTCPP "X'08'" - TCAM POST-PENDING (RORI)
      .... .1..  TCBTCP "X'04'" - TEST TASK - USED BY TEST SVC
      .... ..1.  TCBOLTEP "X'02'" - OLTEP FUNCTIONS REQUIRE CLEANUP BEFORE ABNORMAL TERMINATION CAN BE INVOKED
      .... ...1  TCBDFRBP "X'01'" - Issue SVC 61 upon fetch. Set only when SVC 61 is being intercepted for deferred breakpoint processing
21 (15) ADDRESS 3  TCBTRNB - ADDRESS OF TESTRAN CONTROL CORE TABLE
24 (18) ADDRESS 4  TCBMSS(0) - ADDRESS OF LAST SPQE ON MSS QUEUE
24 (18) BITSTRING 1   - HIGH ORDER BYTE OF TCBMSS
25 (19) ADDRESS 3  TCBMSSB - SAME AS TCBMSS
28 (1C) BITSTRING 1  TCBPKF - STORAGE PROTECTION KEY FOR THIS TASK. IF THERE IS NO STORAGE PROTECTION, ALL BITS ARE ZERO.
      1... ....  TCBPKFU "X'80'" When on, user key
      1111 ....  TCBFLAG "X'F0'" - STORAGE PROTECTION KEY
      .... 1111  TCBZERO "X'0F'" - MUST BE ZERO
29 (1D) BITSTRING 5  TCBFLGS(0) - FLAG BYTE FIELDS
29 (1D) BITSTRING 1  TCBFLGS1 - FIRST TCB FLAG BYTE
      1... ....  TCBFA "X'80'" - May be on when a task is being abnormally terminated. Do NOT use this bit as an indicator in any program. It is not an intended interface. See the TCBEndingAbnormally bit for program use. Also see TCBDYING and TCBENDNG.
      .1.. ....  TCBFE "X'40'" - On when the system is calling resource managers during abnormal termination.
      ..1. ....  TCBFERA "X'20'" - ENTER ABEND ERASE ROUTINE WHEN IN CONTROL AGAIN
      ...1 ....  TCBNONPR "X'10'" - TASK IS NON-PREEMPTABLE
      .... 1...  TCBPDUMP "X'08'" - PREVENT DUMP INDICATOR
      .... .1..  TCBFT "X'04'" - TOP TASK IN TREE BEING ABTERMED
      .... ..1.  TCBFS "X'02'" - ABTERM DUMP COMPLETED PROBLEM PROGRAM STORAGE HAS BEEN OVERLAID TO PROCESS ABEND (OS/VS1)
      .... ...1  TCBFX "X'01'" - PROHIBIT QUEUEING OF ASYNCHRONOUS EXITS FOR THIS TASK
30 (1E) BITSTRING 1  TCBFLGS2 - SECOND FLAG BYTE
      1... ....  TCBFOINP "X'80'" - THE TASK IS ABENDING AND IS IN THE PROCESS OF (1) OPEN FOR DUMP DATA SET PROCESSING, (2) CLOSE FOR USER DATA SET OR (3) PURGE FOR ENQ'ED RESOURCES. THIS BIT IS USED IN CONJUNCTION WITH TCBSTACK. ICB374
      .1.. ....  TCBFSTI "X'40'" - SECOND JOB STEP INTERVAL HAS EXPIRED (INITIATOR TCB)
      ..1. ....  TCBFABOP "X'20'" - IF 1, THE SYSABEND DUMP DATA SET HAS BEEN OPENED FOR ABEND. IF 0, THE SYSUDUMP DUMP DATA SET WAS OPENED. THIS BIT IS ONLY USED FOR THE JOB STEP TCB AND IS USED IN CONJUNCTION WITH TCBFDSOP BIT. YM0651
      ...1 ....  TCBFSMC "X'10'" - TASK HAS ISSUED A SYSTEM-MUST-COMPLETE AND SET ALL OTHER TASKS IN THE SYSTEM NONDISPATCHABLE
      .... 1...  TCBFJMC "X'08'" - TASK HAS ISSUED A STEP-MUST-COMPLETE AND TURNED OFF ALL OTHER TASKS IN THE STEP
      .... .1..  TCBFDSOP "X'04'" - SYSABEND OPEN FOR JOB STEP
      .... ..1.  TCBFETXR "X'02'" - ETXR TO BE SCHEDULED
      .... ...1  TCBFTS "X'01'" - THIS TASK IS A MEMBER OF A TIME-SLICED GROUP
31 (1F) BITSTRING 1  TCBFLGS3 - THIRD FLAG BYTE. SERIALIZATION - TCBACTIV OR TASK NONDISPATCHABLE AND LOCAL LOCK
      1... ....  TCBFSM "X'80'" - ALL PSW'S IN SUPERVISOR STATE
      .1.. ....  TCBRT1S "X'40'" - RTM1 HAS INVOKED SLIP FOR A TASK IN EUT MODE. RTM2 MAY BYPASS SLIP PROCESSING OWNERSHIP - RTM
      ..1. ....  TCBABTRM "X'20'" - ABTERM BIT TO PREVENT MULTIPLE ABENDS
      ...1 ....  TCBFXSET "X'10'" - TCBFX WAS SET BY STATUS MCSTEP
      .... .1..  TCBKEY9 "X'04'" - TCB was attached using KEY=NINE and so is to be treated as having a different key than the attacher
      .... ..1.  TCBENQRM "X'02'" - ENQ/DEQ RESOURCE MANAGER HAS RECEIVED CONTROL. NO FURTHER DIRECTED ENQS ALLOWED. SERIALIZATION - TCBACTIV AND CMSEQDQ CLASS LOCK. OWNERSHIP - GRS.
      .... ...1  TCBDWSTA "X'01'" - THIS TASK WAS DETACHED WITH STAE=YES OPTION ICB315
32 (20) BITSTRING 1  TCBFLGS4 - NONDISPATCHABILITY FLAGS
      1... ....  TCBNDUMP "X'80'" - ABDUMP NONDISPATCHABILITY INDICATOR
      .1.. ....  TCBSER "X'40'" - SER1 NONDISPATCHABILITY INDICATOR
      ..1. ....  TCBRQENA "X'20'" - I/O RQE'S EXHAUSTED
      ...1 ....  TCBHNDSP "X'10'" - TASK OR JOB STEP IS MOMENTARILY 'FROZEN' UNTIL THE REQUIRED RESOURCES ARE AVAILABLE. THE BIT IS SET THROUGH THE USE OF THE 'STATUS' SVC ICB453
      .... 1...  TCBUXNDV "X'08'" - TASK IS TEMPORARILY NONDISPATCHABLE BECAUSE SMF TIME LIMIT OR SYSOUT LIMIT USER EXIT ROUTINE IS BEING EXECUTED FOR THIS STEP
      .... .1..  TCBRBWF "X'04'" - TOP RB IS IN WAIT STATE
      .... ...1  TCBONDSP "X'01'" - TASK TERMINATING AND NONDISPATCHABLE BECAUSE EITHER OPEN FOR DUMP DATA SET IS IN PROCESS OR CLOSE BY ABEND IS IN PROCESS
33 (21) BITSTRING 1  TCBFLGS5 - MORE NONDISPATCHABILITY FLAGS. IF ANY BIT IN THIS BYTE IS 1, THE TASK IS NONDISPATCHABLE.
      1... ....  TCBFC "X'80'" - TASK TERMINATED
      .1.. ....  TCBABWF "X'40'" - ABNORMAL WAIT
      .1.. ....  TCBUXNDF "X'40'" - TASK IS TEMPORARILY NONDISPATCHABLE BECAUSE SMF TIME LIMIT OR SYSOUT LIMIT USER EXIT ROUTINE IS BEING EXECUTED FOR THIS STEP. THIS BIT IS SET TO 1 IN ALL TCB'S EXCEPT JOB STEP TCB. (OS/VS1) ICB263
      ..1. ....  TCBPAGE "X'20'" - TASK IS NONDISPATCHABLE DUE TO EXCESSIVE PAGING RATE
      ...1 ....  TCBANDSP "X'10'" - TASK IS TEMPORARILY NONDISPATCHABLE BECAUSE IT WAS ATTACHED UNDER THE DISP=NO OPERAND
      .... 1...  TCBSYS "X'08'" - ANOTHER TASK IS IN SYSTEM-MUST-COMPLETE STATUS OR A SUMMARY BIT FOR FIELD TCBSYSCT
      .... .1..  TCBSTP "X'04'" - ANOTHER TASK IN THIS JOB STEP IS IN STEP-MUST-COMPLETE STATUS
      .... ..1.  TCBFCD1 "X'02'" - INITIATOR WAITING FOR REGION
      .... ...1  TCBPNDSP "X'01'" - PRIMARY NONDISPATCHABILITY BIT. THIS BIT IS SET TO 1 IF ANY OF THE SECONDARY NONDISPATCHABILITY BITS (OFFSETS 173, 174, 175, 200 OR 201 DECIMAL) IS SET TO 1. THIS BIT IS SET TO 0 IF A SECONDARY NONDISPATCHABILITY BIT IS SET TO 0 AND ALL OTHER SECONDARY NONDISPATCHABILITY BITS ARE 0.
34 (22) SIGNED 1  TCBLMP - TASK LIMIT PRIORITY
35 (23) SIGNED 1  TCBDSP - DISPATCHING PRIORITY FOR THIS TASK
36 (24) ADDRESS 4  TCBLLS - ADDRESS OF LAST LOAD LIST ELEMENT (LLE) IN LOAD LIST
40 (28) ADDRESS 4  TCBJLB - ADDRESS OF A JOBLIB DCB
44 (2C) ADDRESS 4  TCBJPQ(0) - ADDRESS OF LAST CDE FOR JOB PACK AREA (JPA) CONTROL QUEUE
44 (2C) BITSTRING 1  TCBPURGE - HIGH ORDER BYTE
      1... ....  TCBJPQF "X'80'" - JPQ PURGE FLAG
45 (2D) ADDRESS 3  TCBJPQB - LOW ORDER 24-BITS OF TCBJPQ
48 (30) CHARACTER 64  TCBGRS(0) - GENERAL REGISTER SAVE AREA. THIS OFFSET FIXED BY ARCHITECTURE.
48 (30) SIGNED 4  TCBGRS0 - SAVE AREA FOR GENERAL REGISTER 0
52 (34) SIGNED 4  TCBGRS1 - SAVE AREA FOR GENERAL REGISTER 1
56 (38) SIGNED 4  TCBGRS2 - SAVE AREA FOR GENERAL REGISTER 2
60 (3C) SIGNED 4  TCBGRS3 - SAVE AREA FOR GENERAL REGISTER 3
64 (40) SIGNED 4  TCBGRS4 - SAVE AREA FOR GENERAL REGISTER 4
68 (44) SIGNED 4  TCBGRS5 - SAVE AREA FOR GENERAL REGISTER 5
72 (48) SIGNED 4  TCBGRS6 - SAVE AREA FOR GENERAL REGISTER 6
76 (4C) SIGNED 4  TCBGRS7 - SAVE AREA FOR GENERAL REGISTER 7
80 (50) SIGNED 4  TCBGRS8 - SAVE AREA FOR GENERAL REGISTER 8
84 (54) SIGNED 4  TCBGRS9 - SAVE AREA FOR GENERAL REGISTER 9
88 (58) SIGNED 4  TCBGRS10 - SAVE AREA FOR GENERAL REGISTER 10
92 (5C) SIGNED 4  TCBGRS11 - SAVE AREA FOR GENERAL REGISTER 11
96 (60) SIGNED 4  TCBGRS12 - SAVE AREA FOR GENERAL REGISTER 12
100 (64) SIGNED 4  TCBGRS13 - SAVE AREA FOR GENERAL REGISTER 13
104 (68) SIGNED 4  TCBGRS14 - SAVE AREA FOR GENERAL REGISTER 14
108 (6C) SIGNED 4  TCBGRS15 - SAVE AREA FOR GENERAL REGISTER 15
112 (70) ADDRESS 4  TCBFSA(0) - ADDRESS OF THE FIRST PROBLEM PROGRAM SAVE AREA
112 (70) SIGNED 1   - FIRST BYTE OF TCBFSA
113 (71) ADDRESS 3  TCBFSAB - ADDRESS OF THE FIRST PROBLEM PROGRAM SAVE AREA
116 (74) ADDRESS 4  TCBTCB - Queue of TCBs in an address space. Note: The queue is not maintained in priority order.
120 (78) ADDRESS 4  TCBTME - ADDRESS OF THE TIMER QUEUE ELEMENT (TQE)
      1... ....  TCBTQET "X'80'" - IF ZERO, TASK TYPE TQE. IF ONE, REAL/WAIT TYPE TQE.
124 (7C) ADDRESS 4  TCBJSTCB(0) - Address of job step TCB for this TCB
124 (7C) BITSTRING 1   - HIGH ORDER BYTE OF TCBJSTCB
125 (7D) ADDRESS 3  TCBJSTCA - LOW ORDER 24 BITS OF TCBJSTCB
128 (80) ADDRESS 4  TCBNTC - ADDRESS OF THE TCB FOR THE TASK PREVIOUSLY ATTACHED BY THE TASK THAT ATTACHED THIS TASK. FOR EXAMPLE, IF TASK A ATTACHED TASK B AND THEN TASK C, THIS FIELD IN TASK C'S TCB POINTS TO TASK B'S TCB, AND THIS FIELD IN TASK B'S TCB IS ZERO.
132 (84) ADDRESS 4  TCBOTC - ADDRESS OF THE TCB FOR THE TASK (THE ORIGINATING TASK) THAT ATTACHED THIS TASK. THIS FIELD IS ZERO IN THE TCB FOR A SYSTEM TASK.
136 (88) ADDRESS 4  TCBLTC - ADDRESS OF THE TCB FOR THE TASK LAST ATTACHED BY THIS TASK. NOTE - IF A TASK (THE ORIGINATING TASK) HAS ATTACHED OTHER TASKS, THE TCB'S FOR THE OTHER TASKS ARE ON THE SUBTASK QUEUE OF THE ORIGINATING TASK. TCBLTC IN THE TCB FOR THE ORIGINATING TASK POINTS TO THE LAST TCB (THE TCB FOR THE LAST ATTACHED TASK) IN THE SUBTASK QUEUE. IN EACH TCB ON THE SUBTASK QUEUE, EXCEPT THE FIRST TCB, TCBNTC POINTS TO THE PRECEDING TCB ON THE QUEUE.
140 (8C) ADDRESS 4  TCBIQE - ADDRESS OF AN INTERRUPTION QUEUE ELEMENT (IQE) FOR SCHEDULING THE ETXR ROUTINE OF THE TASK THAT ATTACHED THIS TASK.
144 (90) ADDRESS 4  TCBECB - ADDRESS OF THE ECB THAT WILL BE POSTED BY THE SUPERVISOR'S TASK TERMINATION ROUTINES WHEN NORMAL OR ABNORMAL TERMINATION OCCURS.
148 (94) BITSTRING 1  TCBTSFLG - TIME SHARING FLAGS
      1... ....  TCBTSTSK "X'80'" - SWAPPED TIME SHARING TASK (OS/VS1)
      .1.. ....  TCBSTPPR "X'40'" - TASK SHOULD BE MADE NONDISPATCHABLE VIA TCBSTPP WHEN IT IS NO LONGER RUNNING A PRIVILEGED PROGRAM
      ..1. ....  TCBATT "X'20'" - TASK SHOULD NOT HAVE ATTENTION EXITS SCHEDULED ON IT BY EXIT EFFECTOR. THIS OFFSET FIXED BY ARCHITECTURE.
      ...1 ....  TCBTIOTG "X'10'" - PURGE TGET/TPUT AFTER ATTENTION
      .... 1...  TCBSMCP "X'08'" - STATUS MCSTEP PENDING,TASK IS SUSPENDED
      .... ..1.  TCBDYDSP "X'02'" - M195 TASK IS MEMBER OF DYNAMIC DISPATCHING GROUP ICB262
      .... ...1  TCBCPUBN "X'01'" - FOR M195, ZERO MEANS I/O BOUND AND ONE MEANS CPU BOUND ICB262
149 (95) SIGNED 1  TCBSTPCT - NUMBER OF SETTASK STARTS WHICH MUST BE ISSUED BEFORE TASK IS MADE DISPATCHABLE - FIELD NOT RESTRICTED TO TSO
150 (96) SIGNED 1  TCBTSLP - LIMIT PRIORITY OF TIME SHARING TASK
151 (97) BITSTRING 1  TCBTSDP - DISPATCHING PRIORITY OF TIME SHARING TASK
152 (98) ADDRESS 4  TCBRD POINTER TO DPQE MINUS 8 FOR THE JOB STEP SERIALIZATION - THE LOCAL LOCK. OWNERSHIP - VSM.
152 (98) X'B8' 0  TCBPQE "TCBRD" SAME AS TCBRD
156 (9C) ADDRESS 4  TCBAE LIST ORIGIN OF AQE(S) FOR THIS TASK SERIALIZATION - THE LOCAL LOCK. OWNERSHIP - VSM.
156 (9C) X'BC' 0  TCBAQE "TCBAE" SAME AS TCBAE
160 (A0) ADDRESS 4  TCBSTAB(0) - ADDRESS OF THE CURRENT STAE CONTROL BLOCK
160 (A0) BITSTRING 1  TCBNSTAE - FLAGS INTERNAL TO STAE ROUTINE
      1... ....  TCBSTABE "X'80'" - ABEND ENTERED BECAUSE OF ERROR IN STAE PROCESSING
      .1.. ....  TCBQUIES "X'40'" - STAE INVOKED PURGE I/O ROUTINE WITH QUIESCE I/O OPTION
      ..1. ....  TCB33E "X'20'" - A 33E ABEND HAS OCCURRED FOR TASK
      ...1 ....  TCBPPSUP "X'10'" - 1=SUPERVISOR MODE,0=PROBLEM PROGRAM MODE INDICATOR TO SYNCH OF THE MODE OF THE USER EXIT
      .... 1...  TCBHALT "X'08'" - PURGE I/O ROUTINE DID NOT SUCCESSFULLY QUIESCE I/O, BUT I/O WAS HALTED
      .... .1..  TCBSYNCH "X'04'" - SYNCH ISSUED BY ASIR TO SCHEDULE EXIT ROUTINE
      .... ...1  TCBSTCUR "X'01'" - STAE RECURSION VALID ICB443
161 (A1) ADDRESS 3  TCBSTABB - ADDRESS OF THE CURRENT STAE CONTROL BLOCK
164 (A4) ADDRESS 4  TCBTCT(0) - ADDRESS OF THE TIMING CONTROL TABLE (TCT) IF SYSTEM MANAGEMENT FACILITIES (SMF) DATA IS BEING COLLECTED FOR THE TASK. ZERO IF SMF DATA IS NOT BEING COLLECTED FOR THE TASK. SERIALIZATION: LOCAL LOCK.
164 (A4) BITSTRING 1  TCBTCTGF - FLAG BYTE FOR TIMING CONTROL TABLE ICB318
      1... ....  TCBSMFGF "X'80'" - IF ZERO, THE TCT CORE TABLE IS NOT TO BE UPDATED BY GETMAIN/FREEMAIN. IF ONE, THE TCT CORE TABLE IS TO BE UPDATED BY GETMAIN/FREEMAIN. ICB318
165 (A5) ADDRESS 3  TCBTCTB - ADDRESS OF THE TIMING CONTROL TABLE (TCT) IF SYSTEM MANAGEMENT FACILITIES (SMF) DATA IS BEING COLLECTED FOR THE TASK. ZERO IF SMF DATA IS NOT BEING COLLECTED FOR THE TASK OR FOR OS/VS1, IF SMF IS NOT IN THE SYSTEM.
168 (A8) ADDRESS 4  TCBUSER - A WORD AVAILABLE TO THE USER
172 (AC) BITSTRING 4  TCBSCNDY(0) - SECONDARY NONDISPATCHABILITY BITS. IF ANY BIT IN THE FOLLOWING FOUR BYTES IS 1, THE PRIMARY NONDISPATCHABILITY BIT (OFFSET 33.7 DECIMAL) IS 1, AND THE TASK IS NONDISPATCHABLE.
172 (AC) BITSTRING 4  TCBNDSP(0) - SAME AS TCBSCNDY
172 (AC) BITSTRING 1  TCBNDSP0 - BYTE 0
      .... ..1.  TCBNDGSF "X'02'" Temporarily nondispatchable for GSF
      .... ...1  TCBNDJL "X'01'" Join/Leave processing
173 (AD) BITSTRING 1  TCBNDSP1 - BYTE 1
      1... ....  TCBDARTN "X'80'" - THE TASK IS TEMPORARILY NONDISPATCHABLE - DAMAGE ASSESSMENT ROUTINE (DAR)
173 (AD) X'80' 0  TNONDISP "TCBDARTN" * ALIAS *
      .1.. ....  TCBDARPN "X'40'" - THE TASK IS PERMANENTLY NONDISPATCHABLE - DAMAGE ASSESSMENT ROUTINE (DAR)
173 (AD) X'40' 0  PNONDISP "TCBDARPN" * ALIAS *
      ..1. ....  TCBRSTND "X'20'" - THE TASK IS TEMPORARILY NONDISPATCHABLE - RECOVERY MANAGEMENT SUPPORT AND SYSTEM ERROR RECOVERY (RMS/SER)
      ...1 ....  TCBRSPND "X'10'" - THE TASK IS PERMANENTLY NONDISPATCHABLE - RECOVERY MANAGEMENT SUPPORT AND SYSTEM ERROR RECOVERY (RMS/SER) (IF THIS BIT IS ON THEN THE PREVIOUS BIT MUST BE ON TOO)
      .... 1...  TCBDDRND "X'08'" - THE TASK IS IN DEVICE ALLOCATION AND DYNAMIC DEVICE RECONFIGURATION (DDR) HAS MADE IT NONDISPATCHABLE - RECOVERY MANAGEMENT SUPPORT AND SYSTEM ERROR RECOVERY (RMS/SER) (OS/VS1)
      .... .1..  TCBTPSP "X'04'" - DISPATCHING OF TCAM TASK MUST BE DELAYED UNTIL TCAM I/O APPENDAGE OR SVC ROUTINE HAS COMPLETED EXECUTION (TCAM IN MULTIPROCESSING ENVIRONMENT)
      .... ..1.  TCBPIEND "X'02'" - SRB IS TO BE SCHEDULED TO PERFORM PIE/PICA PROCESSING (FIRST LEVEL INTERRUPT HANDLER)
      .... ...1  TCBABTIN "X'01'" - THE TASK IS TEMPORARILY NONDISPATCHABLE WHILE BEING SET UP FOR ABTERM
174 (AE) BITSTRING 1  TCBNDSP2 - BYTE 2
      1... ....  TCBABD "X'80'" - ABDUMP IS PROCESSING (OS/VS1)
      .1.. ....  TCBSTPP "X'40'" - TASK SET NONDISPATCHABLE BY SETTASK
      ..1. ....  TCBNDSVC "X'20'" - TASK IS NONDISPATCHABLE BECAUSE SVC DUMP IS EXECUTING FOR ANOTHER TASK
      ...1 ....  TCBNDTS "X'10'" - TASK IS NONDISPATCHABLE BECAUSE IT IS BEING SWAPPED OUT
      .... 1...  TCBIWAIT "X'08'" - TASK IS NONDISPATCHABLE DUE TO AN INPUT WAIT
      .... .1..  TCBOWAIT "X'04'" - TASK IS NONDISPATCHABLE DUE TO AN OUTPUT WAIT
      .... ..1.  TCBDSS "X'02'" - DYNAMIC SUPPORT SYSTEM (DSS) HAS SET THIS TASK NONDISPATCHABLE ICB313
      .... ...1  TCBABE "X'01'" - ABEND ROUTINE WAS ENTERED FOR THIS TASK WHILE THE DCB FOR SYSABEND (OR SYSUDUMP) DATA SET WAS BEING OPENED FOR ANOTHER TASK (OS/VS1)
175 (AF) BITSTRING 1  TCBNDSP3 - BYTE 3
      1... ....  TCBLJSND "X'80'" - TASK IS ABENDING AND NONDISPATCHABLE BECAUSE IT HAS A JOB STEP SUBTASK. TCBONDSP MUST ALSO BE ON.
      .1.. ....  TCBNDNYI "X'40'" - RCT TASK IS NONDISPATCHABLE BECAUSE ADDRESS SPACE IS NOT YET INITIALIZED FULLY
      ..1. ....  TCBSRBND "X'20'" - TCB NONDISPATCHABLE BECAUSE SRB'S ARE STOPPED
      ...1 ....  TCBSLPER "X'10'" - SET NONDISPATCHABLE SO THAT SLIP/PER CAN ALTER RB PSW PER BIT
      .... 1...  TCBS3MR "X'08'" - STAGE 3 EXIT EFFECTOR MUST RUN TO SYNCHRONIZE ATTENTION INTERRUPT
      .... .1..  TCBAREQ "X'04'" - TSO AUTHORIZED REQUEST PROCESSING ACTIVE
      .... ..1.  TCBNDSMF "X'02'" - Indicates task is stopped because its CPU or continuous wait time has been exceeded. SMF determines whether to grant extension or abend task. Ownership: SMF.
      .... ...1  TCBNDINT "X'01'" - INITIATOR SETS THIS BIT TO PREVENT JOB STEP EXECUTION IN ORDER TO DO CANCEL PROCESSING (CAN CANCEL LOOP)
176 (B0) SIGNED 4  TCBMDIDS - RESERVED FOR MODEL-DEPENDENT SUPPORT AND FOR IBM PROPRIETARY PROGRAMMING SUPPORT ICBXXX
180 (B4) ADDRESS 4  TCBJSCB(0) - ADDRESS OF THE JOB STEP CONTROL BLOCK
180 (B4) BITSTRING 1  TCBRECDE - ABEND RECURSION BYTE ICB456
      1... ....  TCBREC "X'80'" - VALID REENTRY TO ABEND IF NON-ZERO VALUE IN FOLLOWING 7 BITS ICB456
      .... ...1  TCBOPEN "X'01'" - OPEN DUMP DATA SET ICB456
      .... ..1.  TCBCLOSD "X'02'" - CLOSE DIRECT SYSOUT ON TAPE ICB456
      .... ..11  TCBCLOSE "X'03'" - CLOSE OPEN DATA SETS ICB456
      .... .1..  TCBCLOSF "X'04'" - RESERVED. ICB456
      .... .1.1  TCBGREC "X'05'" - GRAPHICS ICB456
      .... .111  TCBADUMP "X'07'" - ABDUMP ICB456
      .... 1...  TCBPTAXE "X'08'" - PURGE TAXE ICB456
      .... 1..1  TCBMESG "X'09'" - MESSAGE RECURSION ICB456
      .... 1.1.  TCBDYNAM "X'0A'" - DD-DYNAM TIOT CLEANUP ICB456
      .... 1.11  TCBDAMSG "X'0B'" - ABEND IS ISSUING A WTOR ASKING WHETHER THE JOB STEP TASK SHOULD WAIT FOR THE DUMP AREA (OS/VS1)
      .... 11..  TCBQTIP "X'0C'" - PURGE TSO INTERPARTITION POSTS ICB456
      .... 11.1  TCBTCAMP "X'0D'" - PURGE TCAM INTERPARTITION POSTS ICB456
      .... 111.  TCBINDRC "X'0E'" - INDICATIVE DUMP (LOAD 8 OF ABEND) HAS ABENDED. ABEND WILL HANDLE THIS ABEND. (OS/VS1)
      .... 1111  TCBSAVCD "X'0F'" - ASIR RECURSION. SAVE OLD COMPLETION CODE ICB456
      ...1 ....  TCBTYP1W "X'10'" - TYPE 1 MESSAGE WRITE TO PROGRAMMER ICB456
      ..1. ....  TCBWTPSE "X'20'" - WRITE-TO-PROGRAMMER (WTP) FAILED. JOB STEP TIMER EXPIRED DURING JOB STEP ABEND AND THE STAE EXIT IS DENIED. (OS/VS1)
      ..1. ...1  TCBVTAM1 "X'21'" - ABEND IS ENTERING FIRST VTAM INTERFACE, ISTRAAA1, FOR TERMINATION OF TASK OR SUBTASK (OS/VS1)
      ..1. ..1.  TCBVTAM2 "X'22'" - ABEND IS ENTERING SECOND VTAM INTERFACE, ISTRAAA2, BECAUSE ISTRAAA1 ABENDED (OS/VS1)
      ..1. ..11  TCBVTAM3 "X'23'" - ABEND IS ENTERING FIRST VTAM INTERFACE, ISTRAAA0, BECAUSE VTAM ABENDED (OS/VS1)
      ..1. .1..  TCBVTAM4 "X'24'" - ABEND IS ENTERING SECOND VTAM INTERFACE, ISTRAAA2, BECAUSE ISTRAAA0 ABENDED (OS/VS1)
      ..11 ....  TCBNOSTA "X'30'" - STAE/STAI NOT TO BE HONORED ICB456
      ..11 ...1  TCBSTRET "X'31'" - RETURN FROM DUMP PROCESSING ICB456
      ..11 ..1.  TCBCONVR "X'32'" - CONVERT TO STEP ABEND ICB456
      ..11 ..11  TCBDARET "X'33'" - RETURN FROM DAMAGE ASSESSMENT ROUTINES ICB456
      ..11 .1..  TCBTYP1R "X'34'" - RETURN FROM TYPE 1 MESSAGE MODULE ICB456
      ..11 .1.1  TCBNEWRB "X'35'" - ABEND ISSUED SVC 13 TO TRANSFER CONTROL (XCTL) TO A NON-ABEND MODULE ICB456
      .1.. ....  TCBMCCNS "X'40'" - A MUST COMPLETE TASK HAS ABNORMALLY TERMINATED WITHOUT ENOUGH STORAGE FOR 2 RB'S FOR A WTOR ASKING WHETHER THE TASK'S RESOURCES ARE CRITICAL. THE RESOURCES ARE ASSUMED TO BE CRITICAL, AND THE PARTITION IS MARKED PERMANENTLY NONDISPATCHABLE. (OS/VS1) ICB492
181 (B5) ADDRESS 3  TCBJSCBB - ADDRESS OF THE JOB STEP CONTROL BLOCK
184 (B8) ADDRESS 4  TCBSSAT - ADDRESS OF THE SUBSYSTEM AFFINITY TABLE (SSAT). SERIALIZATION - TCBACTIV. OWNERSHIP - TASK MANAGEMENT.
188 (BC) ADDRESS 4  TCBIOBRC - ADDRESS OF IOB RESTORE CHAIN FOR I/O QUIESCED BY EOT YM2840
192 (C0) ADDRESS 4  TCBEXCPD - ADDRESS OF EXCP DEBUG AREA YM4297
196 (C4) ADDRESS 4  TCBEXT1(0) - ADDRESS OF OS-OS/VS COMMON TCB EXTENSION ICB311
196 (C4) BITSTRING 1   - RESERVED.
197 (C5) ADDRESS 3  TCBEXT1A - ADDRESS OF OS-OS/VS COMMON TCB EXTENSION ICB311 
               OS/VS1 - OS/VS2 COMMON SECTION
200 (C8) BITSTRING 4  TCBBITS(0) - FLAG BYTES. IF A BIT IN THE FOLLOWING TWO BYTES IS SET TO 1, THE PRIMARY NONDISPATCHABILITY BIT (OFFSET 33.7 DECIMAL) IS SET TO 1, AND THE TASK IS NONDISPATCHABLE.
200 (C8) BITSTRING 1  TCBNDSP4 - SECONDARY NONDISPATCHABILITY FLAGS COMMON TO OS/VS1 AND OS/VS2. COORDINATED WITH PRIMARY NONDISPATCHABILITY FLAG TCBPNDSP. THIS BYTE IS NOT CURRENTLY SUPPORTED BY OS/VS2.
201 (C9) BITSTRING 1  TCBNDSP5 - SECONDARY NONDISPATCHABILITY FLAGS UNIQUE TO OS/VS1 OR OS/VS2. COORDINATED WITH PRIMARY NONDISPATCHABILITY FLAG TCBPNDSP. THIS BYTE IS NOT CURRENTLY SUPPORTED BY OS/VS2.
202 (CA) BITSTRING 1  TCBFLGS6 - TASK-RELATED FLAGS
      1... ....  TCBRV "X'80'" - THE PARTITION IS FIXED IN REAL STORAGE. VIRTUAL ADDRESSES ARE EQUAL TO REAL ADDRESSES.
      .1.. ....  TCBPIE17 "X'40'" - PAGE FAULT INTERRUPT IS TO BE PASSED TO THE TASK'S INTERRUPT EXIT AND AN 8-BYTE PICA IS IN EFFECT FOR THIS TASK ICB339
      ..1. ....  TCBCPU "X'20'" - TASK IS CPU-BOUND MEMBER OF AUTOMATIC PRIORITY GROUP (APG)
      ...1 ....  TCBSPVLK "X'10'" - TASK SCHEDULED FOR ABTERM WHILE OWNING SUPERVISOR LOCK
      .... 1...  TCBHCRM "X'08'" - Health Checker has established a task term resmgr for this task
      .... .1..  TCBMIGR "X'04'" - REGION SELECTED FOR MIGRATION FROM PRIMARY PAGING DEVICE
      .... ..1.  TCBAPG "X'02'" - TASK IS IN AUTOMATIC PRIORITY GROUP (APG)
      .... ...1  TCBNTJS "X'01'" - JOB STEP TASK BUT NOT HIGHEST IN FAILING TREE
203 (CB) BITSTRING 1  TCBFLGS7 - TASK-RELATED FLAGS
      1... ....  TCBGPECB "X'80'" - TASK IS IN AN ECB WAIT FOR A GETPART ICB339
      .1.. ....  TCBSENVP "X'40'" -
      ..1. ....  TCBSVCSP "X'20'" - IF 1, SVC SCREENING IS TO BE PROPAGATED TO SUBTASKS
      ...1 ....  TCBSTACK "X'10'" - SET IN JOB STEP TCB TO INDICATE THAT A TASK IN THE JOB STEP IS IN SERIAL ABEND PROCESSING. USED IN CONJUNCTION WITH TCBFOINP. ICB374
      .... 1...  TCBSVCS "X'08'" - IF 1, SVC SCREENING IS REQUIRED FOR THE TASK. THIS OFFSET FIXED BY ARCHITECTURE.
      .... .1..  TCBRSTSK "X'04'" - RESIDENT SYSTEM TASK
      .... ..1.  TCBADMP "X'02'" - ALL OTHER TASKS IN JOB STEP HAVE BEEN SET NONDISPATCHABLE BY ABDUMP. THIS BIT IS SET TO CONTROL JOB STEP DURING THE DUMPING PROCESS.
      .... ...1  TCBGTOFM "X'01'" - GENERALIZED TRACE FACILITY (GTF) TRACING HAS BEEN TEMPORARILY DISABLED UNDER THIS TASK ICB402
204 (CC) BITSTRING 1  TCBDAR - DAMAGE ASSESSMENT ROUTINE (DAR) FLAGS
      1... ....  TCBDARP "X'80'" - PRIMARY DAR RECURSION. DAR HAS BEEN ENTERED FOR THIS TASK.
      .1.. ....  TCBDARS "X'40'" - SECONDARY DAR RECURSION. IF DAR IS REENTERED, THIS TASK WILL BE SET NONDISPATCHABLE.
      ..1. ....  TCBDARD "X'20'" - A DUMP HAS BEEN REQUESTED FOR A WRITER OR SCHEDULER ABEND, AND THE USER HAS PROVIDED NO SYSABEND DD CARD (OS/VS1)
      ...1 ....  TCBDARC "X'10'" - RECURSION PERMITTED IN CLOSE - AFTER DAR PROCESSING COMPLETED (PCP)
      ...1 ....  TCBDARMC "X'10'" - DAR HAS BEEN ENTERED TO HANDLE A VALID RECURSION IN MUST-COMPLETE STATUS THROUGH ABEND ICB264
      .... 1...  TCBDARO "X'08'" - SYSTEM ERROR TASK IS FAILING. DAR DUMP SHOULD NOT REQUEST ANY ERROR RECOVERY PROCEDURE (ERP) PROCESSING.
      .... .1..  TCBDARWT "X'04'" - A WTO OPERATION WITH A 'REINSTATEMENT FAILURE' MESSAGE IS IN PROCESS FOR DAR ICB264
      .... ..1.  TCBDARMS "X'02'" - WTO OPERATION WITH A 'DAR IN PROGRESS' MESSAGE IS IN PROCESS FOR DAR (OS/VS1)
      .... ...1  TCBEXSVC "X'01'" - THE DUMP SVC ROUTINE IS EXECUTING FOR THIS TASK
205 (CD) BITSTRING 1  TCBRSV37 - RESERVED FOR USER
206 (CE) SIGNED 1  TCBSYSCT - NUMBER OF OUTSTANDING SYSTEM-MUST-COMPLETE REQUESTS (ICB497) YM3883
207 (CF) SIGNED 1  TCBSTMCT - NUMBER OF OUTSTANDING STEP-MUST-COMPLETE REQUESTS (ICB497) YM3883
208 (D0) ADDRESS 4  TCBEXT2(0) - ADDRESS OF OS/VS1 - OS/VS2 COMMON EXTENSION ICB311
208 (D0) BITSTRING 1   - FIRST BYTE OF TCBEXT2
209 (D1) ADDRESS 3  TCBEXT2A - ADDRESS OF OS/VS1 - OS/VS2 COMMON EXTENSION ICB311 
               OS/VS2 TCB OVERLAY
212 (D4) SIGNED 4  TCBR0D4 - Reserved
216 (D8) ADDRESS 4  TCBXSB - ADDRESS OF CURRENT XSB FOR TASK. SERIALIZATION - TCBACTIV. OWNERSHIP - SUPERVISOR.
220 (DC) ADDRESS 4  TCBBACK - ADDRESS OF PREVIOUS TCB ON READY QUEUE. ZERO IN TOP TCB.
224 (E0) ADDRESS 4  TCBRTWA - POINTER TO CURRENT RTM2 WORK AREA
228 (E4) ADDRESS 4  TCBNSSP - NORMAL STACK SAVE AREA POINTER. SERIALIZATION - TCBACTIV. OWNERSHIP - SUPERVISOR.
      1... ....  TCBNSSQA "X'80'" - NORMAL STACK SAVED IN SQA INDICATOR.
232 (E8) ADDRESS 4  TCBXLAS - ASCB ADDRESS OF THE CML LOCK HELD WHILE TCB SUSPENDED OR INTERRUPTED. SERIALIZATION - TCBACTIV. OWNERSHIP - SUPERVISOR.
236 (EC) CHARACTER 1  TCBABCUR - ABEND RECURSION BYTE
237 (ED) SIGNED 1  TCBFJMCT - NUMBER OF OUTSTANDING STEP-MUST-COMPLETE REQUESTS ISSUED BY THE TASK
238 (EE) CHARACTER 1  TCBTID - The task identifier as specified on the TID parameter of ATTACH or ATTACHX. The following task identifiers are for internal use only:
238 (EE) X'FF' 0  TCBPAGID "255" - ID FOR PAGING SUPERVISOR TASK ICB403
238 (EE) X'FE' 0  TCBSYERR "254" - ID FOR SYSTEM ERROR TASK ICB403
238 (EE) X'FD' 0  TCBCOMM "253" - ID FOR COMMUNCIATIONS TASK ICB403
238 (EE) X'FC' 0  TCBIORMS "252" - ID FOR I/O RMS TASK ICB403
238 (EE) X'FB' 0  TCBMASTR "251" - ID FOR MASTER SCHEDULER TASK ICB403
238 (EE) X'FA' 0  TCBJES "250" - ID FOR JOB ENTRY SUBSYSTEM (JES) MONITOR TASK ICB403
238 (EE) X'F9' 0  TCBDSSID "249" - ID FOR DYNAMIC SUPPORT SYSTEM (DSS) TASK ICB403
238 (EE) X'F8' 0  TCBLOGID "248" - ID FOR SYSTEM LOG TASK
239 (EF) BITSTRING 1  TCBFLGS8 - GUPI FLAG BYTE FIELD SERIALIZATION - TCBACTIV (Must be running under this TCB when updating this field.)
      1... ....  TCBDYING "X'80'" - If on, indicates that this TCB will be terminating (normally or abnormally) and its mainline processing will not be allowed to run again. Also see the TCBENDNG bit. TCBDYING is set when any of the following occur: - the TCB is terminating normally - before Estae-type recovery routines receive control for Cancel and Detach (not including Detach with STAE) abends - after all recovery routines have percolated for retriable abends Ownership - RTM.
      .1.. ....  TCBNOIRB "X'40'" - If on, IRBs will not be queued to this TCB. A program setting this flag MUST save its current value and restore that value either when that program can tolerate IRBs being queued or before the current RB terminates.
      ..1. ....  TCBJTCBA "X'20'" - If on, this is the attach of the JSTCB by the initiator
      ...1 ....  TCBSDNDX "X'10'" - If on, this task is exempt from being set non-dispatchable for SDUMP by STATUS
      .... 1...  TCBENDNG "X'08'" - If on, indicates that this TCB will be terminating (normally or abnormally) and its mainline processing will not be allowed to run again. The key difference between TCBENDNG and TCBDYING is that TCBENDNG is set before all types of recovery routine if they will not be allowed to retry. TCBDYING is not set before FRRs and is set before Estae-type recovery routines only for Cancel and Detach abends. TCBENDNG is set when any of the following occur: - The TCB is terminating normally - before recovery routines (including FRRs) receive control for all non-retriable abends including Cancel, Detach, Detach with STAE, and RETRY=NO abterms - after all recovery routines have percolated for retriable abends Ownership - RTM.
      .... .1..  TCBENDINGABNORMALLY "X'04'" - If On, indicates that this TCB is abnormally terminating or (if the task has ended) has abnormally terminated. This bit is a direct intended interface replacement for TCBFA. TCBEndingAbnormally is set when RTM detects that a task will terminate abnormally and its mainline will not be allowed to run again in the following situations: - before Estae-type recovery (not FRRs) receives control for all non-retriable abends including Cancel, Detach, Detach with STAE, and RETRY=NO abterms - after all recovery routines have percolated for retriable abends - in all subtasks before TERM=YES Estae-type recovery is invoked for a Cancel or Detach abend of the current task If the task has ended, TCBEndingAbnormally can be used to determine whether STCBCMP contains an ABEND code or the contents of GPR 15 when the last program returned to the system. Ownership - RTM.
      .... ..1.  TCBDEBL "X'02'" - Serialization: TCBACTIV OWNERSHIP: Supervisor Control
      .... ...1  TCBSIQEO "X'01'" - If on, during task termination, only IQEs set for STIMER(M) should be dequeued
240 (F0) SIGNED 4  TCBXSCT(0) - DISPATCHER INTERSECT CONTROL WORD
240 (F0) BITSTRING 1  TCBXSCT1 - FLAG BYTE
      1... ....  TCBACTIV "X'80'" - BIT ON MEANS THIS TCB IS CURRENTLY ACTIVE ON A CPU. USED TO SYNCHRONIZE SOME STATUS SAVING AND DISPATCHABILITY INDICATORS WHEN ACTIVE OR NOT UNDER THE LOCAL LOCK.
      .1.. ....  TCBS3A "X'40'" - STAGE 3 EXIT EFFECTOR/RESUME/TCTL INTERSECT FLAG
      ..1. ....  TCBLLREQ "X'20'" - TASK REQUESTED LOCAL LOCK
      .... 1...  TCBTDORM "X'08'" - Turned on to detect dormant Tasks by Parallel Detach processing. Turned off by the Dispatcher during Task dispatch
241 (F1) BITSTRING 1  TCBXSCT2 - FLAG BYTE
      1... ....  TCBCMLF "X'80'" - CML RESOURCE MANAGER PROCESSING COMPLETE FOR THIS CML LOCK HOLDER.
      .1.. ....  TCBLLNEW "X'40'" - Lock Manager has given this task the local lock, but its status is in the TCB, not the IHSA. SERIALIZATION: TCBACTIV OWNERSHIP: Task Management
      ..1. ....  TCBRSMRC "X'20'" - RSM Resmgr processing is complete Serialization: TCBACTIV OWNERSHIP: RTM
242 (F2) SIGNED 2  TCBCCPVI - ID OF THE CURRENT CPU RUNNING THIS TASK. USED FOR RECOVERY AND CPU AFFINITY.
244 (F4) ADDRESS 4  TCBFOE(0) - ADDRESS OF FIRST FIX OWNERSHIP ELEMENT (FOE) IN LIST FOR THIS TASK ICB339
244 (F4) BITSTRING 1   - RESERVED.
245 (F5) ADDRESS 3  TCBFOEA - ADDRESS OF FIRST FIX OWNERSHIP ELEMENT (FOE) IN LIST FOR THIS TASK ICB339
248 (F8) ADDRESS 4  TCBSWA - ADDRESS OF FIRST SCHEDULER WORK AREA (SWA) SPQE ON SWA SPQE CHAIN
252 (FC) ADDRESS 4  TCBSTAWA - ESTAE ROUTINE WORK AREA POINTER
256 (100) CHARACTER 4  TCBTCBID - CONTAINS BLOCK ID - 'TCB '
260 (104) ADDRESS 4  TCBRTM12 - POINTER TO PARAMETER AREAS PASSED FROM RTM1 TO RTM2
264 (108) BITSTRING 4  TCBESTAE(0) - AREA TO CONTAIN RECOVERY DATA FOR RTM
264 (108) CHARACTER 1  TCBSCBKY - KEY IN WHICH SYNCH IS TO PASS CONTROL TO THE USER EXIT
265 (109) BITSTRING 1  TCBESTRM - ESTAE TERM OPTIONS
      1... ....  TCBETERM "X'80'" - ESTAE EXIT ENTERED WITH TERM OPTION
      .1.. ....  TCBSTAFX "X'40'" - SERIALIZED BY TCB ACTIVE
266 (10A) SIGNED 1  TCBERTYP - TYPE OF ERROR CAUSING ENTRY TO THE RTM. SET BY RTM1.
267 (10B) SIGNED 1  TCBMODE - MASK INDICATING MODE OF SYSTEM AT TIME OF ERROR. SEE IHART1W/MODE FOR INDIVIDUAL BIT DEFINITIONS.
268 (10C) ADDRESS 4  TCBUKYSP - ADDRESS OF SPQE'S FOR SUBPOOLS 229 AND 230 (USER KEY STORAGE IN THE PRIVATE AREA)
272 (110) BITSTRING 2  TCBPROPF(0) - Flags propagated
272 (110) BITSTRING 1  TCBPROP0 - Byte 0 of TCBPROPF
      1... ....  TCBBITCB "X'80'" - This task is "below" the initiator TCB
273 (111) BITSTRING 1  TCBPROP1 - Byte 1 of TCBPROPF
274 (112) BITSTRING 2  TCBAFFN - CPU AFFINITY INDICATOR
276 (114) BITSTRING 1  TCBFBYT1 - FLAG BYTE. SERIALIZATION - TCBACTIV OR TASK NONDISPATCHABLE AND LOCAL LOCK
      1... ....  TCBEOTFM "X'80'" - END OF TASK FLAG FOR FREEMAIN. SET TO 1 AT START OF ABNORMAL TERMINATION PROCESSING AND RESET TO 0 AT FINISH. INDICATES THAT A FREEMAIN ON A BLOCK OF LOCAL STORAGE THAT IS STILL FIXED BY RSM SHOULD RESULT IN A RETURN CODE OF 8 RATHER THAN ABNORMAL TERMINATION.
      .1.. ....  TCBRTM1E "X'40'" - RTM1 IS CURRENTLY PROCESSING EUT FRR'S FOR THIS TASK
      ..1. ....  TCBNDIOS "X'20'" - TASK HAS BEEN SET NONDISPATCHABLE VIA STATUSND WHILE SVC 16 (PURGE) SCANS THE RB CHAIN PURGING APPENDAGE-SCHEDULED ASYNCHRONOUS EXIT ROUTINES RUNNING UNDER AN IRB/RQE OR NON-RESIDENT ERP'S RUNNING UNDER THE SIRB.
      ...1 ....  TCBPGNLY "X'10'" - SET BY RTM2 TO INDICATE ONLY PURGE PHASE TO BE PERFORMED
      .... 1...  TCBRTM2 "X'08'" - SET BY RTM2 TO INDICATE RTM2 HAS BEEN ENTERED FOR THIS TASK
      .... .1..  TCBEOT "X'04'" - SET BY RTM2 TO INDICATE TO EXIT THAT END OF TASK PROCESSING IS COMPLETE
      .... ..1.  TCBSATTN "X'02'" - SYNCHRONIZATION OF ATTENTION INTERRUPT REQUIRED BY EXIT PROLOG
      .... ...1  TCBLLH "X'01'" - Task was interrupted holding the local lock.
277 (115) BITSTRING 1  TCBFBYT2 - FLAG BYTE. SERIALIZATION - TCBACTIV OR TASK NONDISPATCHABLE AND LOCAL LOCK
      1... ....  TCBCNCB "X'80'" - SET BY RTM2 IN THE JOB STEP TCB WHEN IT HAS BEEN ENTERED ON THE TCB FOR AN X22 ABEND
      .1.. ....  TCBFMW "X'40'" - MOTHER WAITING FLAG. TURNED ON IN A SUBTASK IN RTM2 PROCESSING WHEN AN ANCESTOR TASK IS WAITING TO ABEND IT.
      ..1. ....  TCBFDW "X'20'" - Set by RTM2 to ensure that only one daughter task will terminate its jobstep task. No longer means 'daughter waiting'
      ...1 ....  TCBFPRAP "X'10'" - SET BY RTM2 TO PREVENT PERCOLATION TO THE TASK OF AN ASYNCHRONOUS ABEND
      .... 1...  TCBRT1NR "X'08'" - IF 1, ERROR PROPAGATED FROM RTM1 IS NON-RETRYABLE
      .... .1..  TCBECBNV "X'04'" - IF 1, ECB POINTED TO BY TCBECB IS NOT TO BE VALIDITY CHECKED. IF 0, ECB POINTED TO BY TCBECB IS TO BE VALIDITY CHECKED.
      .... ..1.  TCBSSPC "X'02'" - STATUS STOP PENDING,TASK HOLDS A CML LOCK OR IS IN FUNCTION MUST COMPLETE MODE.
      .... ...1  TCBRTM1C "X'01'" - A TASK WITH EUT FRRS HAS BEEN CANCELLED. THIS FLAG PASSES THE CANCEL REQUEST FROM RTM1 TO RTM2.
278 (116) BITSTRING 1  TCBFBYT3 - FLAG BYTE
      1... ....  TCBEXP "X'80'" - EXPANDED VERSION OF THE TCB
      .1.. ....  TCBNCTL "X'40'" - IF 1, INDICATES USER PROGRAM IS LOADED UNDER THIS TASK OR A LOWER TASK. OWNERSHIP: RACF
      ..1. ....  TCBRTMDE "X'20'" - DETACH HAS BEEN CALLED BY RTM
      ...1 ....  TCBMTDP "X'10'" - MEMTERM SDUMP
279 (117) BITSTRING 1  TCBFBYT4 - FLAG BYTE. SERIALIZATION: TCBACTIV. This is an interface for bit TCB_PThreadTermAbnormal only.
      1... ....  TCBPMC "X'80'" - IF 1, INDICATES TASK IS IN PROCESS MUST COMPLETE MODE.
      .1.. ....  TCBNOJLB "X'40'" - If 1, indicates that TCBJLB is not to be used
      ..1. ....  TCBATSKL "X'20'" - If 1, this task's TASKLIB was provided by an authorized attacher
      .... 1...  TCB_KEEP_LS_EXTENT_VALID "X'08'" - If 1, do not unchain and page release a LSS during a Stack Empty (PIC31) exception Ownership: Supervisor
      .... .1..  TCB_PTHREADTERMABNORMAL "X'04'" - If 1, some z/OS Unix thread terminated abnormally, whether by abend or non-zero return code. Note that this bit might be on even if the task terminates normally. Ownership: z/OS Unix and Context Services
280 (118) ADDRESS 4  TCBRPT - ADDRESS OF RADIX PARTITION TREE FOR LOCAL STORAGE MANAGEMENT
284 (11C) ADDRESS 4  TCBVAT - ADDRESS OF THE VAT (VSAM). THERE IS ONE VAT PER JOB STEP TCB.
288 (120) ADDRESS 4  TCBSWASA - ADDRESS OF SAVE AREA USED BY SWA MANAGER
292 (124) ADDRESS 4  TCBSVCA2 - ADDRESS OF SVC SCREENING TABLE
296 (128) ADDRESS 4  TCBERD EXTENDED REGION DESCRIPTOR. SERIALIZATION - THE LOCAL LOCK. OWNERSHIP - VSM.
300 (12C) ADDRESS 4  TCBEAE EXTENDED ALLOCATED ELEMENT QUEUE ANCHOR. SERIALIZATION - THE LOCAL LOCK. OWNERSHIP - VSM.
304 (130) ADDRESS 4  TCBARC REASON CODE FOR ABEND OWNERSHIP - RTM
308 (134) SIGNED 4  TCBGRES - TASK GLOBAL RESOURCE COUNT - NUMBER OF GLOBAL RESOURCES OWNED BY THIS TASK
312 (138) ADDRESS 4  TCBSTCB ADDRESS OF STCB
316 (13C) CHARACTER 8  TCBTTIME - TCB'S ACCUMULATED CPU TIME
324 (144) ADDRESS 4  TCBCELAP - COMMON EXECUTION LIBRARY ANCHOR POINTER
328 (148) BITSTRING 2  TCBR148 - RESERVED
330 (14A) BITSTRING 1  TCBRBYT1 - RTM Flag byte Ownership: RTM Serialization: Local lock.
      1... ....  TCBPVICT "X'80'" - If 1, indicates that the associated task has received an ABEND13E as a result of Parallel Detach processing. Used by both RTM1 and RTM2.
      .1.. ....  TCBPKING "X'40'" - If 1, indicates that the associated Task has been marked as responsible for the removal of its subtasks (in RTM processing)
      ..1. ....  TCBPCAND "X'20'" - If 1, indicates that this Task has requested Parallel Detach protection and should be on the queue pointed to by ASSBPTAR
      ...1 ....  TCBPTOP "X'10'" - If 1, indicates that this Task is at the top of a Task structure that was Parallel Detached
331 (14B) BITSTRING 1  TCBLEVEL - LEVEL NUMBER OF TCB
      .... ..1.  TCBVS02A "X'02'" - JBB2110 (NOT IN BASE)
      .... ..1.  TCBVS02B "X'02'" - JBB2125
      .... ..11  TCBVS03 "X'03'" - JBB2133
      .... ..11  TCBVERS "X'03'" - LEVEL OF THIS MAPPING
332 (14C) ADDRESS 4  TCBBDT - ADDRESS OF BDT'S GSD LINKAGE CONTROL BLOCK
336 (150) SIGNED 4  TCBNDAXP - COUNT OF NUMBER OF CONSECUTIVE DISPATCHES REQUIRED ON A CP BEFORE THE TASK SHOULD BE REDISPATCHED ON AN AXP. OWNER: SUPERVISOR CONTROL SERIALIZATION: TCBACTIV BIT OF FIELD TCBXSCT1
340 (154) ADDRESS 4  TCBSENV - ADDRESS OF ACEE FOR THE TASK. THE ACEE DESCRIBES THE RACF AUTHORIZATION FOR THE TASK. OWNER: RACF SERIALIZATION: NONE, ONLY UPDATED BY TASK ITSELF
344 (158) DBL WORD 8   (0)  
344 (158) X'158' 0  TCBMNLEN "*-TCB" - LENGTH OF MAIN SECTION OF TCB
Table 2. Structure TCBXTNT2
Offset
Dec		 Offset
Hex		 Type Len Name(Dim) Description
0 (0) STRUCTURE 0 TCBXTNT2 , - START OF EXTENSION
0 (0) ADDRESS 4  TCBGTF(0) - ADDRESS OF GENERALIZED TRACE FACILITY (GTF) TEMPORARY TRACE BUFFER ICB312
0 (0) BITSTRING 1  TCBTFLG - GTF FLAG BYTE ICB312
      1... ....  TCBASYNC "X'80'" - GTF ASYNCHRONOUS GATHER ROUTINE IS IN CONTROL ICB312
      .1.. ....  TCBERRTN "X'40'" - GTF ASYNCHRONOUS GATHER ERROR ROUTINE IS IN CONTROL ICB312
      ..1. ....  TCBDSPIT "X'20'" - MACHINE CHECK INTERRUPTION HANDLER SHOULD UNCONDITIONALLY BRANCH TO THE DISPATCHER ICB312
1 (1) ADDRESS 3  TCBGTFA - ADDRESS OF GTF TEMPORARY TRACE BUFFER ICB312
4 (4) BITSTRING 1   - RESERVED.
5 (5) BITSTRING 3  TCBRCMP - MOST RECENT ABEND COMPLETION CODE (INCLUDING VALID RECURSIONS IN STAE) ICB411
8 (8) ADDRESS 4  TCBEVENT - ADDRESS OF EVENT TABLES QUEUE
12 (C) SIGNED 4  TCBRTMCT - COUNT OF TOKENS USED FOR ESTAE. SERIALIZATION - CS. OWNERSHIP - RTM.
16 (10) ADDRESS 4  TCBTQE - ADDRESS OF A REUSABLE TASK-RELATED TQE
20 (14) ADDRESS 4  TCBCAUF - ADDRESS OF SUBSYSTEM FACILITY CONTROL BLOCK
24 (18) ADDRESS 4  TCBPERCP - POINTER TO A QUEUE OF SPIS. AN SPI REPRESENTS THE PERCOLATION OF AN SRB'S FRR TO THE RELATED TASK. SERIALIZATION - TCBACTIV OR TASK NONDISPATCHABLE AND LOCAL LOCK. OWNERSHIP - RTM.
      1... ....  TCBRCVRY "X'80'" - TASK IS IN RECOVERY. SERIALIZATION - TCBACTIV. OWNERSHIP - RTM.
28 (1C) SIGNED 4  TCBPERCT - COUNT OF SRB MODE FRRS WAITING TO PERCOLATE TO THIS TASK, BUT NOT REPRESENTED IN SPI QUEUE (TCBPERCP). SERIALIZATION - TCBACTIV OR TASK NONDISPATCHABLE AND LOCAL LOCK. OWNERSHIP - RTM.
32 (20) DBL WORD 8   (0) - FORCE LENGTH EQUATE TO DOUBLE WORD ICB362
32 (20) X'20' 0  TCBX2LEN "*-TCBXTNT2" LENGTH OF COMMON EXTENSION
32 (20) X'198' 0  TCBLEN "TCBPXLEN+TCBMNLEN+TCBX2LEN" - TCB LENGTH INCLUDING PREFIX END OF TCB
Table 3. Cross Reference for TCB
Name Offset Hex Tag
PNONDISP AD 40
TCB 0 20
TCB_KEEP_LS_EXTENT_VALID 117 8
TCB_PTHREADTERMABNORMAL 117 4
TCB_REFRPROT_OVERRIDE 14 10
TCBABCUR EC
TCBABD AE 80
TCBABE AE 1
TCBABF 14
TCBABTIN AD 1
TCBABTRM 1F 20
TCBABWF 21 40
TCBACTIV F0 80
TCBADMP CB 2
TCBADUMP B4 7
TCBAE 9C
TCBAFFN 112
TCBANDSP 21 10
TCBAPG CA 2
TCBAQE 9C BC
TCBARC 130
TCBAREQ AF 4
TCBASYNC 0 80
TCBATSKL 117 20
TCBATT 94 20
TCBBACK DC
TCBBDT 14C
TCBBITCB 110 80
TCBBITS C8
TCBCASID 10 8
TCBCAUF 14
TCBCCPVI F2
TCBCDBL 10 8
TCBCELAP 144
TCBCIND 10 2
TCBCLOSD B4 2
TCBCLOSE B4 3
TCBCLOSF B4 4
TCBCMLF F1 80
TCBCMP 10
TCBCMPC 11
TCBCMPF 10
TCBCMSG 10 1
TCBCNCB 115 80
TCBCOMM EE FD
TCBCONVR B4 32
TCBCPP 10 20
TCBCPU CA 20
TCBCPUBN 94 1
TCBCREQ 10 80
TCBCSTEP 10 40
TCBCWTO 10 4
TCBDAMSG B4 B
TCBDAR CC
TCBDARC CC 10
TCBDARD CC 20
TCBDARET B4 33
TCBDARMC CC 10
TCBDARMS CC 2
TCBDARO CC 8
TCBDARP CC 80
TCBDARPN AD 40
TCBDARS CC 40
TCBDARTN AD 80
TCBDARWT CC 4
TCBDDRND AD 8
TCBDEB 8
TCBDEBL EF 2
TCBDFRBP 14 1
TCBDMPO 10 20
TCBDSP 23
TCBDSPIT 0 20
TCBDSS AE 2
TCBDSSID EE F9
TCBDWSTA 1F 1
TCBDYDSP 94 2
TCBDYING EF 80
TCBDYNAM B4 A
TCBEAE 12C
TCBECB 90
TCBECBNV 115 4
TCBENDINGABNORMALLY EF 4
TCBENDNG EF 8
TCBENQRM 1F 2
TCBEOT 114 4
TCBEOTFM 114 80
TCBERD 128
TCBERRTN 0 40
TCBERTYP 10A
TCBESTAE 108
TCBESTRM 109
TCBETERM 109 80
TCBEVENT 8
TCBEXCPD C0
TCBEXP 116 80
TCBEXSVC CC 1
TCBEXT1 C4
TCBEXT1A C5
TCBEXT2 D0
TCBEXT2A D1
TCBFA 1D 80
TCBFABOP 1E 20
TCBFBYT1 114
TCBFBYT2 115
TCBFBYT3 116
TCBFBYT4 117
TCBFC 21 80
TCBFCD1 21 2
TCBFDSOP 1E 4
TCBFDW 115 20
TCBFE 1D 40
TCBFERA 1D 20
TCBFETXR 1E 2
TCBFIX -20
TCBFJMC 1E 8
TCBFJMCT ED
TCBFLAG 1C F0
TCBFLGS 1D
TCBFLGS1 1D
TCBFLGS2 1E
TCBFLGS3 1F
TCBFLGS4 20
TCBFLGS5 21
TCBFLGS6 CA
TCBFLGS7 CB
TCBFLGS8 EF
TCBFMW 115 40
TCBFOE F4
TCBFOEA F5
TCBFOINP 1E 80
TCBFPRAP 115 10
TCBFRS -20
TCBFRS0 -20
TCBFRS2 -18
TCBFRS4 -10
TCBFRS6 -8
TCBFS 1D 2
TCBFSA 70
TCBFSAB 71
TCBFSM 1F 80
TCBFSMC 1E 10
TCBFSTI 1E 40
TCBFT 1D 4
TCBFTS 1E 1
TCBFX 1D 1
TCBFXSET 1F 10
TCBGPECB CB 80
TCBGREC B4 5
TCBGRES 134
TCBGRPH 14 20
TCBGRS 30
TCBGRS0 30
TCBGRS1 34
TCBGRS10 58
TCBGRS11 5C
TCBGRS12 60
TCBGRS13 64
TCBGRS14 68
TCBGRS15 6C
TCBGRS2 38
TCBGRS3 3C
TCBGRS4 40
TCBGRS5 44
TCBGRS6 48
TCBGRS7 4C
TCBGRS8 50
TCBGRS9 54
TCBGTF 0
TCBGTFA 1
TCBGTOFM CB 1
TCBHALT A0 8
TCBHCRM CA 8
TCBHNDSP 20 10
TCBINDRC B4 E
TCBIOBRC BC
TCBIORMS EE FC
TCBIQE 8C
TCBIWAIT AE 8
TCBJES EE FA
TCBJLB 28
TCBJPQ 2C
TCBJPQB 2D
TCBJPQF 2C 80
TCBJSCB B4
TCBJSCBB B5
TCBJSTCA 7D
TCBJSTCB 7C
TCBJTCBA EF 20
TCBKEY9 1F 4
TCBLEN 20 198
TCBLEVEL 14B
TCBLJSND AF 80
TCBLLH 114 1
TCBLLNEW F1 40
TCBLLREQ F0 20
TCBLLS 24
TCBLMP 22
TCBLOGID EE F8
TCBLTC 88
TCBMASTR EE FB
TCBMCCNS B4 40
TCBMDIDS B0
TCBMESG B4 9
TCBMIGR CA 4
TCBMNLEN 158 158
TCBMODE 10B
TCBMOD91 14 80
TCBMSS 18
TCBMSSB 19
TCBMTDP 116 10
TCBNCTL 116 40
TCBNDAXP 150
TCBNDGSF AC 2
TCBNDINT AF 1
TCBNDIOS 114 20
TCBNDJL AC 1
TCBNDNYI AF 40
TCBNDSMF AF 2
TCBNDSP AC
TCBNDSP0 AC
TCBNDSP1 AD
TCBNDSP2 AE
TCBNDSP3 AF
TCBNDSP4 C8
TCBNDSP5 C9
TCBNDSVC AE 20
TCBNDTS AE 10
TCBNDUMP 20 80
TCBNEWRB B4 35
TCBNOCC 10 10
TCBNOCHK 14 40
TCBNOIRB EF 40
TCBNOJLB 117 40
TCBNONPR 1D 10
TCBNOSTA B4 30
TCBNSSP E4
TCBNSSQA E4 80
TCBNSTAE A0
TCBNTC 80
TCBNTJS CA 1
TCBOLTEP 14 2
TCBONDSP 20 1
TCBOPEN B4 1
TCBOTC 84
TCBOWAIT AE 4
TCBPAGE 21 20
TCBPAGID EE FF
TCBPCAND 14A 20
TCBPDUMP 1D 8
TCBPERCP 18
TCBPERCT 1C
TCBPGNLY 114 10
TCBPIE 4
TCBPIEND AD 2
TCBPIE17 CA 40
TCBPKF 1C
TCBPKFU 1C 80
TCBPKING 14A 40
TCBPMC 117 80
TCBPNDSP 21 1
TCBPPSUP A0 10
TCBPQE 98 B8
TCBPROPF 110
TCBPROP0 110
TCBPROP1 111
TCBPTAXE B4 8
TCBPTOP 14A 10
TCBPURGE 2C
TCBPVICT 14A 80
TCBPXLEN -8 20
TCBQTIP B4 C
TCBQUIES A0 40
TCBRBP 0
TCBRBWF 20 4
TCBRBYT1 14A
TCBRCMP 5
TCBRCVRY 18 80
TCBRD 98
TCBREC B4 80
TCBRECDE B4
TCBRPT 118
TCBRQENA 20 20
TCBRSMRC F1 20
TCBRSPND AD 10
TCBRSTND AD 20
TCBRSTSK CB 4
TCBRSV37 CD
TCBRTMCT C
TCBRTMDE 116 20
TCBRTM1C 115 1
TCBRTM1E 114 40
TCBRTM12 104
TCBRTM2 114 8
TCBRTWA E0
TCBRT1NR 115 8
TCBRT1S 1F 40
TCBRV CA 80
TCBRV316 10 4
TCBR0D4 D4
TCBR148 148
TCBSATTN 114 2
TCBSAVCD B4 F
TCBSCBKY 108
TCBSCNDY AC
TCBSDNDX EF 10
TCBSENV 154
TCBSENVP CB 40
TCBSER 20 40
TCBSIQEO EF 1
TCBSLPER AF 10
TCBSMCP 94 8
TCBSMFGF A4 80
TCBSPVLK CA 10
TCBSRBND AF 20
TCBSSAT B8
TCBSSPC 115 2
TCBSTAB A0
TCBSTABB A1
TCBSTABE A0 80
TCBSTACK CB 10
TCBSTAFX 109 40
TCBSTAWA FC
TCBSTCB 138
TCBSTCC 10 10
TCBSTCUR A0 1
TCBSTMCT CF
TCBSTP 21 4
TCBSTPCT 95
TCBSTPP AE 40
TCBSTPPR 94 40
TCBSTRET B4 31
TCBSVCA2 124
TCBSVCS CB 8
TCBSVCSP CB 20
TCBSWA F8
TCBSWASA 120
TCBSYERR EE FE
TCBSYNCH A0 4
TCBSYS 21 8
TCBSYSCT CE
TCBS3A F0 40
TCBS3MR AF 8
TCBTCAMP B4 D
TCBTCB 74
TCBTCBID 100
TCBTCP 14 4
TCBTCPP 14 8
TCBTCT A4
TCBTCTB A5
TCBTCTGF A4
TCBTDORM F0 8
TCBTFLG 0
TCBTID EE
TCBTIO C
TCBTIOTG 94 10
TCBTME 78
TCBTPSP AD 4
TCBTQE 10
TCBTQET 78 80
TCBTRN 14
TCBTRNB 15
TCBTSDP 97
TCBTSFLG 94
TCBTSLP 96
TCBTSTSK 94 80
TCBTTIME 13C
TCBTYP1R B4 34
TCBTYP1W B4 10
TCBUKYSP 10C
TCBUSER A8
TCBUXNDF 21 40
TCBUXNDV 20 8
TCBVAT 11C
TCBVERS 14B 3
TCBVS02A 14B 2
TCBVS02B 14B 2
TCBVS03 14B 3
TCBVTAM1 B4 21
TCBVTAM2 B4 22
TCBVTAM3 B4 23
TCBVTAM4 B4 24
TCBWTPSE B4 20
TCBXLAS E8
TCBXSB D8
TCBXSCT F0
TCBXSCT1 F0
TCBXSCT2 F1
TCBXTNT2 0
TCBX2LEN 20 20
TCBZERO 1C F
TCB33E A0 20
TNONDISP AD 80