NAME       : HCPPCSBK
 DESCRIPTION: PROCESSOR CONTROLLER STATUS BLOCK
 DSECT      : PCSBK
 FUNCTION   : THIS CONTROL BLOCK RECORDS ALL COMMUNICATION STATUS
              BETWEEN CP AND THE PROCESSOR CONTROLLER.  THE REAL
              PROCESSOR CONTROLLER REQUEST STATUS IS STRICTLY
              MAINTAINED BY THE PROCESSING SUPPORT MODULE HCPPCR.
 LOCATED BY : SYSPCSBK  ANCHOR FIELD IN HCPSYSCM
 CREATED BY : HCPPCR    ALLOCATED AND INITIALIZED WHEN REAL PROCESSOR
              CONTROLLER REQUEST PROCESS IS FIRST INVOKED.
 DELETED BY : NEVER DELETED
 RELOCATION CONSIDERATIONS : None

 PCSBK DSECT
Top of page

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      PCSBK          PROCESSOR CONTROLLER STATUS BLOCK
0000    0 Address      4 PCSPCRQ        POINTER TO FIRST PCRBK IN PC
                                        QUEUE
0004    4 Address      4 PCSACTIV       ADDRESS OF PROCESSOR CONTROLLER
                                        DATA BLOCK SENT IN DIAGNOSE INST.
0008    8 Address      4 PCSREQBK       ADDRESS OF ACTIVE PCRBK
000C   12 Address      4 PCSTIADD       ADDRESS OF TRQBK USED FOR PC
                                        TIMER INTERVAL
0010   16 Bitstring    1 PCSRQFLG       PROCESSOR CONTROLLER REQUEST FLAG
                                        NOTES : ONLY THE CONDITION CODE 2
                                        (PSWCOND2) DEFINITION IS USED BY
                                        PCSDIAGC.
          00000000       PCSRQNON       X'00' PCSRQNON NO VALID REQUESTS
                                        MADE YET
          00000001       PCSRQFST       X'01' PCSRQFST FIRST VALID
                                        REQUEST
          000000FF       PCSRQPST       X'FF' PCSRQPST PAST FIRST VALID
                                        REQUEST
0011   17 Bitstring    1 PCSICC         CONDITION CODE RESULTING FROM PC
                                        INTERFACE INSTRUCTION
          11.. ....      PSWASMSK       X'C0' PSWASMSK ADDRESS SPACE
                                        CONTROL MASK
          11.. ....      PSWHMODE       X'C0' PSWHMODE HOME-SPACE MODE
          1... ....      PSWSMODE       X'80' PSWSMODE SECONDARY MODE
          .1.. ....      PSWAMODE       X'40' PSWAMODE ACCESS-REGISTER
                                        MODE
          ..11 ....      PSWCOND        X'30' PSWCOND PSW CONDITION CODE
          ..1. ....      PSWCOND2       X'20' PSWCOND2 PSW CONDITION CODE
                                        BIT FOR CC=2,3
          ...1 ....      PSWCOND1       X'10' PSWCOND1 PSW CONDITION CODE
                                        BIT FOR CC=1,3
          .... 1111      PSWPMSK        X'0F' PSWPMSK FIXO+DECO+EXUN+SIGN
                                        PROGRAM MASK
          .... 1...      PSWFIXO        X'08' PSWFIXO FIXED-PT OVERFLOW
                                        INTRPT MASK
          .... .1..      PSWDECO        X'04' PSWDECO DECIMAL OVERFLOW
                                        INTRPT MASK
          .... ..1.      PSWEXUN        X'02' PSWEXUN EXPONENT UNDERFLOW
                                        INTRPT MASK
          .... ...1      PSWSIGN        X'01' PSWSIGN SIGNIFICANCE
                                        INTERRUPT MASK
          .... ....      PSWPMODE       X'00' PSWPMODE PRIMARY-SPACE MODE
0012   18 Bitstring    1 *              Reserved for future IBM use
0013   19 Bitstring    1 PCSRPCIF       REAL PROCESSOR CONTROLLER
                                        INTERFACES USED BY VM/XA FOR REAL
                                        REQUEST PROCESSING
          1... ....      SYSRSCIF       X'80' SYSRSCIF SERVICE CALL TYPE
                                        INTERFACE
          .1.. ....      SYSRDGIF       X'40' SYSRDGIF DIAGNOSE X'80'
                                        TYPE INTERFACE
0014   20 Bitstring    1 PCSSTATS       PROCESSOR CONTROLLER STATUS BITS
          1... ....      PCSSPDMC       X'80' PCSSPDMC SERVICE PROCESSOR
                                        DAMAGE MACHINE CHECK HAS BEEN
                                        RECEIVED
          .1.. ....      PCSLDISC       X'40' PCSLDISC PROCESSOR
                                        CONTROLLER IS LOGICALLY
                                        DISCONNECTED FROM THE SYSTEM
          .... ..1.      PCSINOPW       X'02' PCSINOPW PC INTERRUPT
                                        HANDLER HAS OPENED A WINDOW TO
                                        ALLOW THE PC TIMER INTERRUPT TO
                                        HAVE PRIORITY OVER THE TIMEOUT
                                        INTERRUPT IN THE SITUATION WHERE
                                        THEY ARE BOTH RECEIVED AT THE
                                        SAME TIME
          .... ...1      PCSPRVRQ       X'01' PCSPRVRQ ASSUMPTION IS MADE
                                        THAT THE PC IS BUSY FROM A
                                        PREVIOUS REQUEST ACTIVATED PRIOR
                                        TO THE IPL OF THIS SYSTEM
0015   21 Bitstring    1 PCSSTATE       STATE(S) OF THE ACTIVE REQUEST
          1... ....      PCSXPEND       X'80' PCSXPEND EXTERNAL INTERRUPT
                                        PENDING (PROCESSOR CONTROLLER
                                        WILL SIGNAL COMPLETION)
          .1.. ....      PCSRSREQ       X'40' PCSRSREQ ACTIVE REQUEST IS
                                        FOR A VIRTUAL SYSTEM WHICH HAS
                                        BEEN RESET
          ..1. ....      PCSTOUT        X'20' PCSTOUT TIMER INTERVAL HAS
                                        EXPIRED FOR ACTIVE REQUEST
0016   22 Bitstring    2 *              RESERVED BY IBM FOR FUTURE USE
0018   24 Address      4 PCSREQST       Address of first active PCRBK
001C   28 Address      4 PCSREQND       Address of last active PCRBK
0020   32 Dbl-Word     8 PCSIOCPL (0)   DOUBLE IOCP LOCKS
0020   32 Address      4 PCSIOCPW       IOCP WRITE LOCK (BASE ADDRESS OF
                                        VMDBK CONFIGURATION ISSUING AN
                                        IOCP WRITE REQUEST)
0024   36 Address      4 PCSIOCPR       IOCP READ LOCK (BASE ADDRESS OF
                                        VMDBK CONFIGURATION ISSUING AN
                                        IOCP READ REQUEST)
0028   40 Dbl-Word     8 *              RESERVED FOR FUTURE IBM USE
0030   48 Bitstring    1 PCSDSIVL       INDICATES WHEN A QUEUED REQUEST
                                        TO WRITE TO IOCDS DATASET HAS
                                        BEEN ACTIVATED AND THE DATA SET
                                        IS NOW OPEN (INVALID)
          00000010       PCRIOCPW       X'10' PCRIOCPW IOCP OPEN WRITE
                                        REQUEST STARTED; WHEN THIS
                                        REQUEST IS ACTIVATED SEND A
                                        MESSAGE THAT THAT THE IOCDS DATA
                                        SET WILL BE ALTERED (MARKED
                                        INVALID)
          00000000       PCRNODS        X'00' PCRNODS FLAG TO SHOW THAT
                                        NO IOCDS DATASET IS CURRENTLY
                                        BEING ALTERED NOTES : CODES
                                        DEFINED FOR PCRRPCIF BY HCPSYSCM
                                        SYSRPCIF
0031   49 Bitstring    1 PCSDSLVL       DATASET LEVEL USED DURING AN IOCP
                                        READ OR WRITE SEQUENCE
0032   50 Bitstring    1 PCSFUNC        Function code for READ IOCDS and
                                        READ IOCS
0033   51 Bitstring    1 *              RESERVED BY IBM FOR FUTURE USE
0034   52 Signed       4 PCSBZT         Top half of TOD when SERVC CC=2
          00000007       PCSSIZE        (*-PCSBK+7)/8 :SIZE OF BLOCK IN
                                        DOUBLEWORDS

          
*** PCSBK - PROCESSOR CONTROLLER STATUS BLOCK
*
*     +---------------------------+---------------------------+
*   0 |         PCSPCRQ           |         PCSACTIV          |
*     +---------------------------+---------------------------+
*   8 |         PCSREQBK          |         PCSTIADD          |
*     +------+------+------+------+------+------+-------------+
*  10 |:RQFLG|PCSICC|//////|:RPCIF|:STATS|:STATE|/////////////|
*     +------+------+------+------+------+------+-------------+
*  18 |         PCSREQST          |         PCSREQND          |
*     +---------------------------+---------------------------+
*  20 |         PCSIOCPW          |         PCSIOCPR          |
*     +---------------------------+---------------------------+
*  28 |///////////////////////////////////////////////////////|
*     +------+------+------+------+---------------------------+
*  30 |:DSIVL|:DSLVL|:FUNC |//////|          PCSBZT           |
*     +------+------+------+------+---------------------------+
*  38
*
*** PCSBK - PROCESSOR CONTROLLER STATUS BLOCK

 
Symbol         Dspl Value
-------------- ---- -----
PCRIOCPW       0030 00000010
PCRNODS        0030 00000000
PCSACTIV       0004
PCSBZT         0034
PCSDSIVL       0030
PCSDSLVL       0031
PCSFUNC        0032
PCSICC         0011
PCSINOPW       0014 02
PCSIOCPL       0020
PCSIOCPR       0024
PCSIOCPW       0020
PCSLDISC       0014 40
PCSPCRQ        0000
PCSPRVRQ       0014 01
PCSREQBK       0008
PCSREQND       001C
PCSREQST       0018
PCSRPCIF       0013
PCSRQFLG       0010
PCSRQFST       0010 00000001
PCSRQNON       0010 00000000
PCSRQPST       0010 000000FF
PCSRSREQ       0015 40
PCSSIZE        0034 00000007
PCSSPDMC       0014 80
PCSSTATE       0015
PCSSTATS       0014
PCSTIADD       000C
PCSTOUT        0015 20
PCSXPEND       0015 80
PSWAMODE       0011 40
PSWASMSK       0011 C0
PSWCOND        0011 30
PSWCOND1       0011 10
PSWCOND2       0011 20
PSWDECO        0011 04
PSWEXUN        0011 02
PSWFIXO        0011 08
PSWHMODE       0011 C0
PSWPMODE       0011 00
PSWPMSK        0011 0F
PSWSIGN        0011 01
PSWSMODE       0011 80
SYSRDGIF       0013 40
SYSRSCIF       0013 80