Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### SI1BK

Prolog

Control Block Contents
SI1BK DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SI1BK Prolog

     NAME       : HCPSI1GB
     DESCRIPTION: SIE STATE DESCRIPTION (Format 1)
     DSECT      : SI1BK
     Function   :
                  This control block describes a guest virtual
                  machine to the emulation hardware. It defines
                  a SIE format-1 state description, which is the
                  operand of a host SIE instruction when CP is
                  running as an ESA/390 mode host. The SIE state
                  description used by the host control program
                  to run a guest is imbedded in the VMDBK, which
                  is described by HCPVMDBK COPY.
                  The SIE state description is also used by a guest
                  control program operating in zArch mode to run a
                  virtual guest. In that context, it is the operand
                  of a guest SIE instruction.
                  This control block is defined by processor
                  architecture.
     Located by : VMDSDSC in the VMDBK
                  VMDSDSC in the V/SIE VMDBK (which is
                  identified by VMDTYPE = VMDTYPSI)
     Created by : HCPBVM, HCPWVS
     Deleted by : HCPUSO, HCPWSIFR

#### SI1BK Control Block Content

#### SI1BK DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SI1BK          SIE STATE DESCRIPTION (format 1)
    0000    0 Bitstring  256 SI1SDSC (0)    GUEST MACHINE STATE DESCRIPTOR
    0000    0 Signed       4 SI1INTWD (0)   Symbol on word boundary for
                                            Compare-and-Swap operations
    0000    0 Bitstring    1 SI1NTVCT       EMULATION INTERVENTION CONTROL
              ...1 ....      SI1IPWAI       X'10' SI1IPWAI Wait/Run bit. When
                                            this bit is set, the state
                                            description is "waiting", and
                                            host intervention is needed to
                                            make it runnable.
              .... 1...      SI1IPXTC       X'08' SI1IPXTC EXTERNAL CALL
                                            INTERRUPTION PENDING
              .... .1..      SI1IPSTP       X'04' SI1IPSTP SIE stopping
                                            control
              .... ..1.      SI1IPVIO       X'02' SI1IPVIO I/O INTERRUPTION
                                            PENDING
              .... ...1      SI1IPEXT       X'01' SI1IPEXT EXTERNAL
                                            INTERRUPTION PENDING
    0001    1 Bitstring    1 SI1STATC       '||S||' State control fields
              1... ....      SI1ITMRI       X'80' SI1ITMRI INTERVAL TIMER
                                            IRPT PENDING
              .1.. ....      SI1RSCB        X'40' SI1RSCB SIE-state-retention
                                            retained- status control bit.
                                            When 1, an internal version of
                                            the contents of certain fields of
                                            the state description retained
                                            from a previous sie instruction
                                            invocation are used
              .... ..1.      SI1EXTMR       X'02' SI1EXTMR Expedite-Timer
                                            processing enabled
              .... ...1      SI1EXRUN       X'01' SI1EXRUN Expedite-Run
                                            processing enabled
             SIxMODE and SIxMODEX contain bits
          that can be used to determine the machine mode type.
          These bits should NOT be used for this purpose any more,
          instead the HCPVMODE macro should be used to test for
          machine modes: System-370, ESA/370, ESA/XC.
          XA/370 machines are considered to be ESA/370.
    0002    2 Bitstring    1 SI1MODEX       Machine mode control byte MX.
              1... ....      SI1RRF         X'80' SI1RRF Region Relocate
                                            installed
              .1.. ....      SI12NDVV       X'40' SI12NDVV Indicates Rguest
                                            runs V=V guests via uVSIE
                                            (microcode VSIE). This bit is set
                                            at the first SIE instruction
                                            intercept if TRACE is not being
                                            used and SIxRRF is set. Valid in
                                            all VMDBKs.
              ..1. ....      SI12NDVR       X'20' SI12NDVR Indicates Rguest
                                            runs V=R guests via uVSIE
                                            (microcode VSIE). See SIx2NDVV
                                            comments for when set. Valid in
                                            all VMDBKs.
              .... ...1      SI1MCDS        X'01' SI1MCDS If MCDS facility is
                                            installed and ESA/370 mode is
                                            enabled, then the guest is in
                                            MCDS mode.
             See SIxMODEX comment box for more information.
             Do NOT use SIxMODE & SIxMODEX to test for machine mode.
    0003    3 Bitstring    1 SI1MODE        GUEST MACHINE MODE CONTROLS
              ..1. ....      SI1XA          X'20' SI1XA SYS 370/XA MODE GUEST
                                            MACHINE
              ...1 ....      SI1370         X'10' SI1370 SYSTEM/370 MODE
                                            GUEST MACHINE
              .... 1...      SI1VR          X'08' SI1VR V=R GUEST (PREFERRED
                                            STORAGE) STORAGE FOR THE V=R
                                            GUEST IS MAPPED SO THAT GUEST
                                            ABSOLUTE ADDRESSES ARE EQUAL TO
                                            HOST ABSOLUTE ADDRESSES.
              .... .1..      SI1ITMOF       X'04' SI1ITMOF GUEST INTERVAL
                                            TIMER DISABLED (Applies only to
                                            SYSTEM/370 mode guest machines or
                                            ESA family guest machines with
                                            370 mode accomodation (SET
                                            370ACCOM ON). The SET TIMER
                                            command controls the setting of
                                            this bit.)
              .... ...1      SI1GPE         X'01' SI1GPE This bit signifies
                                            that the guest per enhancement
                                            feature should be used. When set,
                                            guest per enhancement makes it so
                                            that guest PER is always enabled.
                                            This bit overrides bit 1 in the
                                            guest PSW.
    0004    4 Signed       4 SI1PREFX       GUEST PREFIX REGISTER VALUE
    0008    8 Signed       2 SI1MSORG       GUEST REAL MAIN STORAGE ORIGIN
    000A   10 Signed       2 SI1GMSIZ       GUEST REAL MAIN STORAGE EXTENT
                                            THIS FIELD DEFINES THE GUEST
                                            STORAGE SIZE TO THE EMULATION
                                            HARDWARE. THE FIELD CONTAINS BITS
                                            1-15 OF THE HIGHEST ADDRESS WHICH
                                            MAY BE USED BY THE GUEST.
                                            EMULATION CONSIDERS STORAGE TO BE
                                            IN 64K INCREMENTS. THIS IS THE
                                            NUMBER OF 64K BLOCKS LESS ONE OF
                                            GUEST STORAGE.
    000C   12 Signed       4 *              RESERVED FOR IBM HARDWARE USE
    0010   16 Dbl-Word     8 SI1EG145 (0)   Guest GPR 14-15 for SIE use only
    0010   16 Signed       4 SI1EG14        GUEST GPR 14 FOR SIE USE ONLY
    0014   20 Signed       4 SI1EG15        GUEST GPR 15 FOR SIE USE ONLY
    0018   24 Dbl-Word     8 SI1PSW (0)     GUEST PSW
    0018   24 Signed       4 SI1PSW0F (0)   Guest PSW bits 0-31
    0018   24 Bitstring    1 SI1PSW0 (0)    GUEST PSW BYTE ZERO, SYST. MASK
              .1.. ....      PSWPERA        X'40' PSWPERA PROGRAM EVENT
                                            RECORDING ACTIVE
              .... .1..      PSWTRAN        X'04' PSWTRAN ADDRESS TRANSLATE
                                            MODE ACTIVE
              .... ..1.      PSWIOSM        X'02' PSWIOSM I/O INTERRUPTION
                                            SUMMARY MASK
              .... ...1      PSWEXSM        X'01' PSWEXSM EXTERNAL INTERRUPT
                                            SUMMARY MASK
    0018   24 Bitstring    1 SI1PSW0B       GUEST PSW BYTE ZERO, SYST. MASK
              1111 11..      PSWIOMSK       X'FC' PSWIOMSK CHANNEL MASK,
                                            CHANNELS 0-5
              .... ..1.      PSWIOSMB       X'02' PSWIOSMB I/O SUMMARY MASK,
                                            CHANNEL 6-15
              .... ...1      PSWEXSMB       X'01' PSWEXSMB EXTERNAL INTERRUPT
                                            SUMMARY MASK
    0019   25 Bitstring    1 SI1PSW1        GUEST PSW BYTE ONE, KEY/EMWP
              1111 ....      PSWKEY         X'F0' PSWKEY PSW ACCESS KEY
                                            EXTRACTION MASK
              .... 1...      PSWECMD        X'08' PSWECMD EXTENDED CONTROL
                                            MODE ACTIVE
              .... .1..      PSWMCHK        X'04' PSWMCHK MACHINE CHECK
                                            SUMMARY MASK
              .... ..1.      PSWWAIT        X'02' PSWWAIT PROGRAM WAIT STATE
              .... ...1      PSWPROB        X'01' PSWPROB PROGRAM PROBLEM
                                            STATE
              .... ...1      PSWMAPPD       X'01' PSWMAPPD For BC-mode PSWs
                                            created by the 370 Accommodation
                                            facility, this bit being set
                                            indicates that the PSW is really
                                            a "mapped" PSW. See HCPPSW.
    001A   26 Signed       2 SI1PSW2H (0)   GUEST BC PSW BYTE 2,3 IRPT CODE
    001A   26 Bitstring    1 SI1PSW2        GUEST EC PSW BYTE TWO, EC MODE
                                            SECONDARY/COND. CODE/PGM MASK
              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
    001B   27 Bitstring    1 SI1PSW3        GUEST EC PSW BYTE THREE, OR BC
                                            MODE INTERRUPT CODE 8-15
    001C   28 Signed       4 SI1PSW4F (0)   GUEST EC PSW INSTRUCTION ADDRESS
                                            (S/370 BITS 32-39 ZERO)
    001C   28 Bitstring    1 SI1PSW4 (0)    GUEST EC PSW BYTE FOUR, AMODE
              1... ....      PSW31BT        X'80' PSW31BT 31-BIT LOGICAL
                                            ADDRESSING MODE
              1... ....      PSWBA          PSW31BT PSWBA Basic Addressing
                                            Mode
              .111 1111      PSWHIADR       X'7F' PSWHIADR INSTRUCTION
                                            COUNTER BITS 1-7 - MUST BE ZERO
                                            IN 24-BIT MODE.
              .... ....      PSW31AMF       X'80000000' PSW31AMF ADDRESS MODE
                                            FULLWORD MASK - CORRESPONDS TO
                                            PSW31BT
    001C   28 Bitstring    1 SI1PSW4B       GUEST BC PSW BYTE FOUR,
                                            ILC/CC/PROGRAM MASK
              11.. ....      PSWILCBC       X'C0' PSWILCBC INSTRUCTION LENGTH
                                            CODE (ILC)
              1... ....      PSWILCB4       X'80' PSWILCB4 BC MODE ILC, 4
                                            BYTE LENGTH
              .1.. ....      PSWILCB2       X'40' PSWILCB2 BC MODE ILC, 2
                                            BYTE LENGTH
              ..11 ....      PSWCONDB       X'30' PSWCONDB PSW CONDITION CODE
              ..1. ....      PSWCONB2       X'20' PSWCONB2 PSW CONDITION CODE
                                            BIT FOR CC=2,3
              ...1 ....      PSWCONB1       X'10' PSWCONB1 PSW CONDITION CODE
                                            BIT FOR CC=1,3
              .... 1111      PSWPMSKB       X'0F' PSWPMSKB
                                            FIXOB+DECOB+EXUNB+SIGNB PROGRAM
                                            MASK
              .... 1...      PSWFIXOB       X'08' PSWFIXOB FIXED-PT OVERFLOW
                                            INTRPT MASK
              .... .1..      PSWDECOB       X'04' PSWDECOB DECIMAL OVERFLOW
                                            INTRPT MASK
              .... ..1.      PSWEXUNB       X'02' PSWEXUNB EXPONENT UNDERFLOW
                                            INTRPT MASK
              .... ...1      PSWSIGNB       X'01' PSWSIGNB SIGNIFICANCE
                                            INTERRUPT MASK Equate to define
                                            the open storage key associated
                                            with the Storage-Protection
                                            Override facility
              .... 1..1      KEYOPEN        9 KEYOPEN Access-control bits for
                                            the open storage key. Equates for
                                            storage key processing. May be
                                            used to process storage key
                                            information in ISKE/SSKE operand
                                            format.
              1111 ....      KEYACC         X'F0' KEYACC Storage key access
                                            control
              .... 1...      KEYFETCH       X'08' KEYFETCH Storage key
                                            fetch-protection control
              1111 1...      KEYACCF        KEYACC+KEYFETCH KEYACCF Storage
                                            key access and fetch
              .... .1..      KEYREF         X'04' KEYREF Storage key
                                            reference bit
              .... ..1.      KEYCHG         X'02' KEYCHG Storage key change
                                            bit
              .... .11.      KEYRC          KEYREF+KEYCHG KEYRC Storage key
                                            reference and change
              1111 111.      KEYISOL        KEYACCF+KEYRC KEYISOL Isolate
                                            entire 7 bit storage key Codes
                                            used as operand to SAC
                                            instruction
              .... ....      SACPRIM        X'000' SACPRIM Primary-space mode
              SI1PSW4B       SACSECO        X'100' SACSECO Secondary-space
                                            mode
              SI1PSW4B       SACAR          X'200' SACAR Access-register mode
              SI1PSW4B       SACHOME        X'300' SACHOME Home-space mode
                                            Codes used to locate instances of
                                            SAM* (Set Address Mode)
                                            instructions SAM31 and SAM64
                                            (used for cross reference as
                                            HCPXREF operands)
              ...1 1111      SAM31          31 SAM31 Cross reference Set
                                            Addressing Mode entry into 31-bit
                                            addressing mode
              .1.. ....      SAM64          64 SAM64 Cross reference Set
                                            Addressing Mode entry into 64-bit
                                            addressing mode Equates to help
                                            deal with virtual addresses.
              SI1PSW4B       DATSXM         X'7FF00000' DATSXM Isolate
                                            segment-index field of a virtual
                                            address.
              SI1PSW4B       DATPXM         X'000FF000' DATPXM Isolate
                                            page-index field of a virtual
                                            address.
              SI1PSW4B       DATBXM         X'00000FFF' DATBXM Isolate
                                            byte-index field of a virtual
                                            address. Equates to use in NILL
                                            instructions to convert one
                                            64-bit address to another.
              SI1PSW4B       PTE2PTO        X'F800' PTE2PTO Convert PTE addr
                                            to PTO addr
              SI1PSW4B       PTE2PGM        X'F000' PTE2PGM Convert PTE addr
                                            to PGMBK addr
              SI1PSW4B       PTO2PGM        X'F000' PTO2PGM Convert PTO addr
                                            to PGMBK addr
              SI1PSW4B       STD2STO        X'F000' STD2STO Convert STD addr
                                            to STO addr
              SI1PSW4B       STE2STO        X'F000' STE2STO Convert STE addr
                                            to STO addr
              SI1PSW4B       STE2PTO        X'F800' STE2PTO Convert STE
                                            contents to PTO addr
              SI1PSW4B       STE2PGM        X'F000' STE2PGM Convert STE
                                            contents to PGMBK Equates related
                                            to access-list designations.
              SI1PSW4B       ALD0ALOM       X'7FFFFF80' ALD0ALOM Isolate
                                            access-list origin
              .111 1111      ALD0ALLM       X'0000007F' ALD0ALLM Isolate
                                            access-list length
              .... ..11      ALD0ALNS       3 ALD0ALNS Bits to shift right an
                                            ALEN to get the associated ALL
                                            value.
              1... ....      ALD0ALUN       128 ALD0ALUN Number of bytes in
                                            an "access-list unit", the number
                                            of bytes in the smallest
                                            variation of the size of an
                                            access list.
              .... .111      ALD0ALUS       7 ALD0ALUS Number of bits to
                                            shift left in order to multiply
                                            by ALD0ALUN.
              1... ....      ALDMIN         ALD0ALUN ALDMIN Length of
                                            smallest access list, in bytes.
              SI1PSW4B       ALDMAX         4096*4 ALDMAX Length of maximum
                                            access list, in bytes. Equates
                                            related to ASTEO-words:
              SI1PSW4B       ASWASTEOM      X'7FFFFFC0' ASWASTEOM Isolate
                                            ASTE origin Equates related to
                                            DUCTO-words:
              SI1PSW4B       DUWDUCTOM      X'7FFFFFC0' DUWDUCTOM Isolate
                                            DUCT origin SIGP CODES
                                            DEFINITIONS SIGNAL PROCESSOR
                                            CODES
              .... ...1      SIGPSENS       001 SIGPSENS SIGP SENSE
              .... ..1.      SIGPEXTC       002 SIGPEXTC SIGP EXTERNAL CALL
              .... ..11      SIGPEMER       003 SIGPEMER SIGP EMERGENCY
                                            SIGNAL
              .... .1..      SIGPSTRT       004 SIGPSTRT SIGP START
              .... .1.1      SIGPSTOP       005 SIGPSTOP SIGP STOP
              .... .11.      SIGPRSTR       006 SIGPRSTR SIGP RESTART
              .... .111      SIGPIPR        007 SIGPIPR SIGP INITIAL PROGRAM
                                            RESET
              .... 1...      SIGPPR         008 SIGPPR SIGP PROGRAM RESET
              .... 1..1      SIGPSSTT       009 SIGPSSTT SIGP STOP AND STORE
                                            STATUS
              .... 1.11      SIGPICPU       011 SIGPICPU SIGP INITIAL CPU
                                            RESET
              .... 11..      SIGPCPU        012 SIGPCPU SIGP CPU RESET
              .... 11.1      SIGPSPFX       013 SIGPSPFX SIGP SET PREFIX
              .... 111.      SIGPSSTS       014 SIGPSSTS SIGP STORE STATUS AT
                                            ADDRESS
              ...1 ...1      SIGPSXST       017 SIGPSXST SIGP Store Extended
                                            Status At Address
              ...1 ..1.      SIGPSARC       018 SIGPSARC SIGP Set
                                            Architecture
              ...1 .1.1      SIGPSRST       021 SIGPSRST SIGP Sense Running
                                            STatus
    001D   29 Bitstring    3 SI1PSW57       GUEST PSW BYTE 5,6,7 BC INSTR.
                                            ADDRESS (370 GUEST ONLY)
    0020   32 Signed       4 SI1HIRES       HI ORDER INTERVAL TIMER RESIDUE
                                            COUNTER (USED BY SOFTWARE ONLY)
    0024   36 Signed       4 SI1LORES       INTERVAL TIMER RESIDUE COUNTER
                                            THE INTERVAL TIMER RESIDUE
                                            COUNTER IS IN THE FORMAT OF THE
                                            TOD CLOCK, AND CONTAINS GUEST CPU
                                            TIME WHICH HAS NOT YET BEEN
                                            APPLIED TO THE GUEST INTERVAL
                                            TIMER. IT IS USED TO COLLECT
                                            SHORT INCREMENTS OF CPU TIME
                                            UNTIL 3.333 MILLISECONDS HAS BEEN
                                            ACCUMULATED, AT WHICH POINT THE
                                            GUEST INTERVAL TIMER IS
                                            DECREMENTED AND THE RESIDUE
                                            COUNTER IS REDUCED BY 3.333
                                            MILLISECONDS. SOFTWARE USES THE
                                            RESIDUE COUNTER TO COLLET ELAPSED
                                            TIME IN GUEST WAIT STATE BEFORE
                                            APPLYING THE TIME TO THE INTERVAL
                                            TIMER. This field is serialized
                                            by I-STREAM for 370 mode virtual
                                            machines and dispatch lock for
                                            other virtual machine types.
    0028   40 Bitstring    1 SI1CPUT0 (0)   HIGH-ORDER BYTE OF CPU TIMER
              1... ....      SI1CPUTN       X'80' SI1CPUTN TIMER VALUE IS
                                            NEGATIVE
    0028   40 Signed       8 SI1CPUTM       GUEST CPU TIMER VALUE This is
                                            usually managed by the emulation
                                            facility. See also the
                                            description of VMDVTZPT in the
                                            VMDBK.
    0030   48 Signed       8 SI1CKC         GUEST CLOCK COMPARATOR VALUE This
                                            value is established by the
                                            emulation hardware when the guest
                                            executes a SCKC instruction. CP
                                            uses this value to maintain guest
                                            timers and determine clock
                                            comparator interrupts during
                                            simulation.
    0038   56 Signed       8 SI1EPOCH       GUEST TIME-OF-DAY CLOCK EPOCH TO
                                            DEFINE DELTA BETWEEN HOST TOD
                                            CLOCK AND GUEST TOD CLOCK. EPOCH
                                            IS ADDED TO HOST TOD CLOCK VALUE
                                            TO OBTAIN GUEST TOD CLOCK VALUE.
    0040   64 Bitstring    1 SI1SVCTL       SVC INTERCEPTION CONTROLS
              1... ....      SI1SVCNN       X'80' SI1SVCNN INTERCEPT ALL SVC
                                            INSTRUCTIONS
              .1.. ....      SI1SVC1C       X'40' SI1SVC1C INTERCEPT ON SVC
                                            NUMBER IN SVC1N
              ..1. ....      SI1SVC2C       X'20' SI1SVC2C INTERCEPT ON SVC
                                            NUMBER IN SVC2N
              ...1 ....      SI1SVC3C       X'10' SI1SVC3C INTERCEPT ON SVC
                                            NUMBER IN SVC3N
    0041   65 Bitstring    1 SI1SVC1N       INTERCEPT SVC NUMBER FIRST ID
    0042   66 Bitstring    1 SI1SVC2N       INTERCEPT SVC NUMBER SECOND ID
    0043   67 Bitstring    1 SI1SVC3N       INTERCEPT SVC NUMBER THIRD ID
    0044   68 Signed       2 SI1LCTLS (0)   LCTL INTERCEPTION CONTROLS
    0044   68 Bitstring    1 SI1LCTB0       LCTL INTERCEPTION, CR0-CR7
              1... ....      SI1LCTL0       X'80' SI1LCTL0 INTERCEPT LCTL CR0
              .1.. ....      SI1LCTL1       X'40' SI1LCTL1 INTERCEPT LCTL CR1
              ..1. ....      SI1LCTL2       X'20' SI1LCTL2 INTERCEPT LCTL CR2
              ...1 ....      SI1LCTL3       X'10' SI1LCTL3 INTERCEPT LCTL CR3
              .... 1...      SI1LCTL4       X'08' SI1LCTL4 INTERCEPT LCTL CR4
              .... .1..      SI1LCTL5       X'04' SI1LCTL5 INTERCEPT LCTL CR5
              .... ..1.      SI1LCTL6       X'02' SI1LCTL6 INTERCEPT LCTL CR6
              .... ...1      SI1LCTL7       X'01' SI1LCTL7 INTERCEPT LCTL CR7
    0045   69 Bitstring    1 SI1LCTB1       LCTL INTERCEPTION, CR8-CR15
              1... ....      SI1LCTL8       X'80' SI1LCTL8 INTERCEPT LCTL CR8
              .1.. ....      SI1LCTL9       X'40' SI1LCTL9 INTERCEPT LCTL CR9
              ..1. ....      SI1LCTLA       X'20' SI1LCTLA INTERCEPT LCTL
                                            CR10
              ...1 ....      SI1LCTLB       X'10' SI1LCTLB INTERCEPT LCTL
                                            CR11
              .... 1...      SI1LCTLC       X'08' SI1LCTLC INTERCEPT LCTL
                                            CR12
              .... .1..      SI1LCTLD       X'04' SI1LCTLD INTERCEPT LCTL
                                            CR13
              .... ..1.      SI1LCTLE       X'02' SI1LCTLE INTERCEPT LCTL
                                            CR14
              .... ...1      SI1LCTLF       X'01' SI1LCTLF INTERCEPT LCTL
                                            CR15
    0046   70 Signed       2 SI1ICPUA       VIRTUAL CPU ADDRESS FOR
                                            INTERPRETIVE EXECUTION (BITS
                                            10-15); BITS 0-9 RESERVED FOR IBM
                                            HARDWARE USE
    0048   72 Signed       4 SI1ICTLS (0)   INTERCEPTION CONTROLS
    0048   72 Bitstring    1 SI1ICPT0       INTERCEPTION CONTROLS, BYTE 0
              1... ....      SI1ICPOP       X'80' SI1ICPOP INTERCEPT
                                            OPERATION EXCEPTION PROGRAM
                                            INTERRUPTIONS
              .1.. ....      SI1ICPRO       X'40' SI1ICPRO INTERCEPT
                                            PRIVILEGED OPERATION PROGRAM
                                            INTERRUPTIONS
              ..1. ....      SI1ICPRG       X'20' SI1ICPRG INTERCEPT PROGRAM
                                            INTERRUPTIONS
              .... 1...      SI1ICTS        X'08' SI1ICTS INTERCEPT TEST AND
                                            SET (TS) INSTRUCTIONS WHEN CC=1
              .... .1..      SI1ICCS        X'04' SI1ICCS INTERCEPT COMPARE
                                            AND SWAP (CS) INSTRUCTIONS WHEN
                                            CC=1
              .... ..1.      SI1ICCDS       X'02' SI1ICCDS INTERCEPT COMPARE
                                            DOUBLE AND SWAP (CDS)
                                            INSTRUCTIONS WHEN CC=1
              .... ...1      SI1ICIPT       X'01' SI1ICIPT INTERCEPT
                                            INVALIDATE PAGE TABLE ENTRY
                                            INSTRUCTIONS (IPTE) or CSP
    0049   73 Bitstring    1 SI1ICPT1       INTERCEPTION CONTROLS, BYTE 1
              .1.. ....      SI1ICLPS       X'40' SI1ICLPS INTERCEPT LOAD PSW
                                            (LPSW) INSTRUCTIONS
              ..1. ....      SI1ICPTL       X'20' SI1ICPTL INTERCEPT PURGE
                                            TLB (PTLB) AND PURGE ALB (PALB)
                                            INSTRUCTIONS
              ...1 ....      SI1ICSSM       X'10' SI1ICSSM INTERCEPT SET
                                            SYSTEM MASK (SSM) INSTRUCTIONS
              .... 1...      SI1ICBSA       X'08' SI1ICBSA INTERCEPT BRANCH
                                            AND SET AUTHORITY (BSA)
                                            INSTRUCTIONS
              .... .1..      SI1ICSTC       X'04' SI1ICSTC INTERCEPT STORE
                                            CONTROL (STCTL) INSTRUCTIONS
              .... ..1.      SI1ICSTN       X'02' SI1ICSTN INTERCEPT
                                            STORE-THEN-AND SYSTEM MASK
                                            (STNSM) INSTRUCTIONS
              .... ...1      SI1ICSTO       X'01' SI1ICSTO INTERCEPT
                                            STORE-THEN-OR SYSTEM MASK (STOSM)
                                            INSTRUCTIONS
                       X'80'          RESERVED FOR FUTURE IBM USE
    004A   74 Bitstring    1 SI1ICPT2       INTERCEPTION CONTROLS, BYTE 2
              1... ....      SI1ICSTK       X'80' SI1ICSTK INTERCEPT STORE
                                            CLOCK (STCK) INSTRUCTIONS
              .1.. ....      SI1ICISK       X'40' SI1ICISK INTERCEPT INSERT
                                            STORAGE KEY (ISK) AND INSERT
                                            STORAGE KEY EXTENDED (ISKE)
                                            INSTRUCTIONS
              ..1. ....      SI1ICSSK       X'20' SI1ICSSK INTERCEPT SET
                                            STORAGE KEY (SSK) AND SET STORAGE
                                            KEY EXTENDED (SSKE) INSTRUCTIONS
              ...1 ....      SI1ICRRB       X'10' SI1ICRRB INTERCEPT RESET
                                            REFERENCE BIT (RRB) AND RESET
                                            REFERENCE BIT EXTENDED (RRBE)
                                            INSTRUCTIONS
              .... 1...      SI1ICPC        X'08' SI1ICPC INTERCEPT PROGRAM
                                            CALL (PC) INSTRUCTIONS
              .... .1..      SI1ICPT        X'04' SI1ICPT INTERCEPT PROGRAM
                                            TRANSFER (PT) INSTRUCTIONS
              .... ..1.      SI1ICTPT       X'02' SI1ICTPT INTERCEPT TEST
                                            PROTECTION (TPROT) INSTRUCTIONS
              .... ...1      SI1ICLSP       X'01' SI1ICLSP INTERCEPT LOAD
                                            ADDRESS SPACE PARAMETERS (LASP)
                                            INSTRUCTIONS
    004B   75 Bitstring    1 SI1ICPT3       INTERCEPTION CONTROLS, BYTE 3
              .1.. ....      SI1ICSPT       X'40' SI1ICSPT INTERCEPT SET CPU
                                            TIMER (SPT) AND STORE CPU TIMER
                                            (STPT) INSTRUCTIONS
              ..1. ....      SI1ICSCK       X'20' SI1ICSCK INTERCEPT SET
                                            CLOCK COMPARATOR (SCKC) AND STORE
                                            CLOCK COMPARATOR (STCKC)
                                            INSTRUCTIONS
              .... 1...      SI1ICPR        X'08' SI1ICPR INTERCEPT PROGRAM
                                            RETURN (PR) INSTRUCTION
              .... .1..      SI1ICBAK       X'04' SI1ICBAK INTERCEPT BRANCH
                                            AND STACK (BAKR) INSTRUCTION
              .... ..1.      SI1ICPG        X'02' SI1ICPG INTERCEPT PAGE-IN
                                            (PGIN) AND PAGE-OUT (PGOUT)
                                            INSTRUCTIONS.
    004C   76 Signed       4 SI1ECA (0)     EXECUTION CONTROLS
    004C   76 Bitstring    1 SI1ECA0        EXECUTION CONTROLS, BYTE 0
              1... ....      SI1ECEXT       X'80' SI1ECEXT EXTERNAL
                                            INTERRUPTION INTERPRETATION
                                            ASSIST
              .1.. ....      SI1ECINT       X'40' SI1ECINT INTERVENTION
                                            BYPASS ASSIST
              ..1. ....      SI1ECWAI       X'20' SI1ECWAI GUEST WAIT-STATE
                                            ASSIST
              ...1 ....      SI1ECSGP       X'10' SI1ECSGP SIGP
                                            INTERPRETATION ASSIST
              .... 1...      SI1ECALT       X'08' SI1ECALT ALERT MONITORING
                                            BIT
              .... .1..      SI1ECIO2       X'04' SI1ECIO2 I/O INTERPRETATION
                                            LEVEL 2 ACTIVATION BIT
              .... ...1      SI1ECMVP       X'01' SI1ECMVP MVPG Facility
                                            enablement. When this bit is one,
                                            SIE will inter- pret the MVPG and
                                            IESBE opcodes.
    004D   77 Bitstring    1 SI1ECA1        EXECUTION CONTROLS, BYTE 1
              ..1. ....      SI1EC370       X'20' SI1EC370 ENABLE 370 GUEST
                                            I/O INTERRUPTS
    004E   78 Bitstring    1 SI1ECA2        Execution controls, byte 2
              .... ....      SI1BKDF1       X'00' SI1BKDF1 Dummy bit
                                            definition so BLOCKDEF will map
                                            SIxECA2 correctly
    004F   79 Bitstring    1 SI1ECA3        Execution controls, byte 3
              .... .1..      SI1SIGA        X'04' SI1SIGA Signal Adapter
                                            (SIGA) Assist
    0050   80 Bitstring    1 SI1ICODE       INTERCEPTION EVENT CODE. THIS
                                            FIELD DESCRIBES A GUEST CONDITION
                                            DETECTED BY THE EMULATION
                                            HARDWARE (USUALLY) WHICH REQUIRES
                                            SOFTWARE INTERVENTION OR
                                            SIMULATION. It IS ALSO USED BY
                                            SOFTWARE TO INDICATE THAT THERE
                                            EXISTS A DESCRIPTION OF GUEST
                                            CONDITIONS BY SOFTWARE, IN
                                            VMDNTMOD, THAT REQUIRES SOFTWARE
                                            INTERVENTION FOR TRACING.
              00000000       SI1ENDOP       0 SI1ENDOP RESERVED FOR IBM
                                            SOFTWARE USE SIxENDOP is used to
                                            indicate that the guest machine
                                            is between instuctions, or
                                            currently executing in emulation
                                            mode
              00000004       SI1ICNTC       4 SI1ICNTC INSTRUCTION
                                            INTERCEPTION. A GUEST INSTRUCTION
                                            WAS FOUND BY EMULATION HARDWARE
                                            WHICH IS NOT EMULATED, OR WHICH
                                            WAS REQUESTED FOR INTERCEPTION IN
                                            THE INTERCEPTION CONTROLS.
              00000008       SI1ICPNT       8 SI1ICPNT PROGRAM INTERRUPT
                                            INTERCEPTION
              0000000C       SI1ICBOT       12 SI1ICBOT BOTH INSTRUCTION AND
                                            PROGRAM INTERRUPT INTERCEPTIONS
                                            (OCCURRS WITH LCTL, TS, CS, CDS
                                            INSTRUCTIONS WITH A PER EVENT.)
              00000010       SI1ICPEX       16 SI1ICPEX PENDING EXTERNAL
                                            INTERRUPT
              00000014       SI1ICXNT       20 SI1ICXNT EXTERNAL INTERRUPT
                                            INTERCEPTION
              00000018       SI1ICPIO       24 SI1ICPIO PENDING I/O INTERRUPT
                                            INTERCEPT
              0000001C       SI1ICWT        28 SI1ICWT WAIT STATE
                                            INTERCEPTION
              00000020       SI1ICVAL       32 SI1ICVAL VALIDITY INTERCEPTION
              00000024       SI1IMISC       36 SI1IMISC SOFTWARE USE ONLY
                                            Used to indicate that a software
                                            event has occurred which is not
                                            one of the other codes. The
                                            condition is further described in
                                            the VMDNTMOD field.
              00000028       SI1ICSTP       40 SI1ICSTP STOP INTERCEPTION
              0000002C       SI1ICOUO       44 SI1ICOUO OPERATION EXCEPTION
                                            INTERCEPTION
              00000030       SI1ICALT       48 SI1ICALT Alert interception
              00000038       SI1ICPIX       56 SI1ICPIX PARTIAL
                                            INSTRUCTION-EXECUTION
                                            INTERCEPTION
              0000003C       SI1ICIOR       60 SI1ICIOR I/O INTERRUPTION
                                            INTERCEPTION
              00000040       SI1ICION       64 SI1ICION I/O INSTRUCTION
                                            INTERCEPTION
              00000044       SI1ICRUN       68 SI1ICRUN Expedite-Run
                                            processing Interception
              00000048       SI1ICTMR       72 SI1ICTMR Expedite-Timer
                                            processing Interception
              00000003       SI1IMLT4       X'03' SI1IMLT4 To ensure field is
                                            multiple of 4
    0051   81 Bitstring    1 SI1ICFLG       INSTRUCTION INTERCEPT MODIFIER
              .... ..1.      SI1ICIF        X'02' SI1ICIF INSTRUCTION FETCH
                                            EVENT (P.E.R)
              .... ...1      SI1ICEX        X'01' SI1ICEX THE INTERCEPTED
                                            INSTRUCTION WAS THE SUBJECT OF AN
                                            EXECUTE INST.
    0052   82 Signed       2 SI1IHCPU       HOST CPU ADDRESS THAT LAST
                                            ENTERED EMULATION MODE FOR THIS
                                            STATE DESCRIPTION
    0054   84 Signed       2 SI1TODPF       Guest TOD programmable field
    0056   86 Bitstring    6 SI1IPARM (0)   Interception parameter.
    0056   86 Signed       2 SI1INST (0)    Interception parameter bit 0-15
              .1.1 .11.      SI1IPA         SI1INST SI1IPA
    0056   86 Bitstring    1 SI1INSTO       Interception parameter bit 0-7.
                                            First byte of the OPCODE
              00000056       SI1IPA0        SI1INSTO
    0057   87 Bitstring    1 SI1INSTE       Interception parameter bit 8-15
                                            Second byte of the OPCODE for
                                            extended opcode instruction or
                                            R1R2 field or immediate data
                                            field or length field
              00000057       SI1IPA1        SI1INSTE
    0058   88 Signed       4 SI1IPB (0)     Interception parameter bit 16-47
                                            For instruction interception,
                                            this field contains bytes 2 and
                                            beyond of the instruction text,
                                            if the instruction is that long.
    0058   88 Signed       2 SI1IPBH0 (0)   Halfword 0 of IPB
    0058   88 Bitstring    1 SI1IPB0        Byte 0 of IPB
    0059   89 Bitstring    1 SI1IPB1        Byte 1 of IPB
    005A   90 Signed       2 SI1IPBH1 (0)   Halfword 1 of IPB
    005A   90 Bitstring    1 SI1IPB2        Byte 2 of IPB
    005B   91 Bitstring    1 SI1IPB3        Byte 3 of IPB
    005C   92 Signed       4 SI1IPC         Instruction parameter bit 48-79.
    0060   96 Signed       4 SI1RCP (0)     RCP-AREA HOST VIRTUAL ADDRESS
    0060   96 Bitstring    1 SI1RCPB0       BYTE ZERO, FLAGS FOR STORAGE KEY
                                            ASSIST
              1... ....      SI1ASIST       X'80' AN ASSIST IS ENABLED
              1... ....      SI1SKAEN       X'80' STORAGE KEY ASSIST ENABLED
              .1.. ....      SI1SKAIP       X'40' STORAGE KEY ASSIST IN
                                            PROGRESS
    0061   97 Bitstring    1 *              RESERVED WITH ASSISTS ENABLED
    0062   98 Bitstring    1 SI1RCPB2       BYTE TWO, FLAGS ASSISTS
              ...1 ....      SI1RCPBY       X'10' SI1RCPBY BYPASS USE OF RCP
                                            FOR GUEST
    0063   99 Bitstring    1 *              RESERVED WITH ASSISTS ENABLED
    0064  100 Signed       4 SI1ISCAA       SYSTEM CONTROL AREA ADDRESS
    0068  104 Signed       4 SI1SNORG       SUBCHANNEL NUMBER TABLE ORIGIN
    006C  108 Signed       4 *              RESERVED FOR IBM HARDWARE USE
    0070  112 Signed       2 SI1TCHCL       TCH INTERCEPTION CONTROLS
    0072  114 Signed       2 *              RESERVED FOR IBM HARDWARE USE
    0074  116 Signed       4 SI1IOPCT (0)   I/O PASSTHROUGH CONTROL
    0074  116 Bitstring    1 SI1DEDSC       DEDICATED SUBCLASS CONTROL
    0075  117 Bitstring    1 SI1REPSC       REPLACEMENT ISC NUMBER
              ..11 1...      CSWIRC         X'38' CSWIRC INTERRUPTION
                                            SUBCLASS EXTRACT MASK
              1... ....      CSWQDIO        X'80' CSWQDIO QDIO Facility (Q)
                                            Available
              .... .1..      CSWIOINC       X'04' CSWIOINC I/O Initiation
                                            Control bit
              .... ..1.      CSWHDVA        X'02' CSWHDVA HALT DEVICE (HDV)
                                            Assist Control bit
              .... ...1      CSWABC         X'01' CSWABC ALTERNATE BLOCK
                                            CONTROL BIT
              1... ....      CSWPATH        X'80' CSWPATH MODEL DEPENDENT
                                            PATH FOR MSG SUBCHANL
              ..11 111.      CSWMSV         X'3E' CSWMSV MESSAGE SUBCHANNEL
                                            VALID BITS
              .1.. ....      CSWMINS        X'40' CSWMINS MESSAGE DEVICE MAY
                                            BE INSTALLED
    0076  118 Signed       2 SI1DVSCS (0)   IRB DS MASK
    0076  118 Bitstring    1 SI1DVST        DEVICE STATUS BYTE OF THE IRB DS
                                            MASK. THE CONTENTS OF THIS FIELD
                                            ARE ANDED WITH THE DEVICE STATUS
                                            BYTE OF THE IRB BY TSCH TO SEE IF
                                            TYPE B INFORMATION IS PRESENT.
              1... ....      CSWATTN        X'80' CSWATTN ATTENTION
              .1.. ....      CSWSM          X'40' CSWSM STATUS MODIFIER
              ..1. ....      CSWCUE         X'20' CSWCUE CONTROL UNIT END
              ...1 ....      CSWBUSY        X'10' CSWBUSY BUSY
              .... 1...      CSWCE          X'08' CSWCE CHANNEL END
              .... .1..      CSWDE          X'04' CSWDE DEVICE END
              .... ..1.      CSWUC          X'02' CSWUC UNIT CHECK
              .... ...1      CSWUE          X'01' CSWUE UNIT EXCEPTION
              .... 11..      CSWCEDE        X'0C' CSWCEDE CHANNEL END AND
                                            DEVICE END
              ..1. 11..      CSWCEDC        X'2C' CSWCEDC CHANNEL END,DEVICE
                                            END,AND CUE
              .1.1 ....      CSWSMBSY       X'50' CSWSMBSY CONTROL UNIT BUSY
              .111 ....      CSWCBS         X'70' CSWCBS CONTROL UNIT BUSY
                                            AND END
              1... .1..      CSWDEA         X'84' CSWDEA DEVICE END AND
                                            ATTENTION
    0077  119 Bitstring    1 SI1SCST        SUBCHANNEL STATUS BYTE OF THE IRB
                                            DS MASK. THE CONTENTS OF THIS
                                            FIELD ARE ANDED WITH THE
                                            SUBCHANNEL STATUS BYTE OF THE IRB
                                            BY TSCH TO SEE IF TYPE B
                                            INFORMATION IS PRESENT.
              1... ....      CSWPCI         X'80' CSWPCI PROGRAM CONTROLLED
                                            INTERRUPTION
              .1.. ....      CSWIL          X'40' CSWIL INCORRECT LENGTH
                                            INDICATION
              ..1. ....      CSWPRG         X'20' CSWPRG CHANNEL PROGRAM
                                            CHECK
              ...1 ....      CSWPROT        X'10' CSWPROT STORAGE PROTECTION
                                            CHECK
              .... 1...      CSWCDC         X'08' CSWCDC CHANNEL DATA CHECK
              .... .1..      CSWCCC         X'04' CSWCCC CHANNEL CONTROL
                                            CHECK
              .... ..1.      CSWIFCC        X'02' CSWIFCC INTERFACE CONTROL
                                            CHECK
              .... ...1      CSWCHC         X'01' CSWCHC CHANNEL CHAINING
                                            CHECK
              .... 111.      CSWHCE         X'0E' CSWHCE CDC+CCC+IFCC
                                            HARDWARE ERRORS
              ..11 ...1      CSWPCE         X'31' CSWPCE PRG+CHC+PROT PROGRAM
                                            ERRORS
    0078  120 Bitstring    3 SI1XSLIM       EXTENDED STORAGE UPPER LIMIT
                                            BLOCK ADDRESS.
    007B  123 Bitstring    1 *              RESERVED FOR IBM HARDWARE USE
    007C  124 Signed       4 *              RESERVED FOR IBM HARDWARE USE
    0080  128 Bitstring   64 SI1CRS (0)     GUEST CONTROL REGISTERS 0-15
    0080  128 Signed       4 SI1CR0 (0)     GUEST CONTROL REGISTER 0
    0080  128 Bitstring    1 SI1CR0B0       GUEST CONTROL REGISTER 0, BYTE 0
    0081  129 Bitstring    1 SI1CR0B1       GUEST CONTROL REGISTER 0, BYTE 1
    0082  130 Signed       2 SI1CR0XM (0)   GUEST CR 0 EXTERNAL IRPT MASK
    0082  130 Bitstring    1 SI1CR0B2       GUEST CONTROL REGISTER 0, BYTE 2
    0083  131 Bitstring    1 SI1CR0B3       GUEST CONTROL REGISTER 0, BYTE 3
    0084  132 Signed       4 SI1CR1 (0)     GUEST CONTROL REGISTER 1
    0084  132 Bitstring    1 SI1CR1B0       GUEST CONTROL REGISTER 1, BYTE 0
                                            370 GUEST SEGMENT TABLE LENGTH
              1... ....      CR1SSXA        X'80' CR1SSXA 370/XA SPACE SWITCH
                                            EVENT MASK
    0085  133 Bitstring    3 SI1CR1SO (0)   370 GUEST STO VALUE
    0085  133 Bitstring    1 SI1CR1B1       GUEST CONTROL REGISTER 1, BYTE 1
    0086  134 Bitstring    1 SI1CR1B2       GUEST CONTROL REGISTER 1, BYTE 2
    0087  135 Bitstring    1 SI1CR1B3       GUEST CONTROL REGISTER 1, BYTE 3
              .... ...1      CR1SS370       X'01' CR1SS370 370 SPACE SWITCH
                                            EVENT MASK
    0088  136 Signed       4 SI1CR2 (0)     GUEST CONTROL REGISTER 2
    0088  136 Signed       2 SI1CR2IM (0)   370 GUEST CHANNEL MASK
    0088  136 Bitstring    1 SI1CR2B0       GUEST CONTROL REGISTER 2, BYTE 0
    0089  137 Bitstring    1 SI1CR2B1       GUEST CONTROL REGISTER 2, BYTE 1
    008A  138 Bitstring    1 SI1CR2B2       GUEST CONTROL REGISTER 2, BYTE 2
    008B  139 Bitstring    1 SI1CR2B3       GUEST CONTROL REGISTER 2, BYTE 3
    008C  140 Signed       4 SI1CR3 (0)     GUEST CONTROL REGISTER 3
    008C  140 Signed       2 SI1CR3KM (0)   PSW-KEY mask
    008C  140 Bitstring    1 SI1CR3B0       GUEST CONTROL REGISTER 3, BYTE 0
    008D  141 Bitstring    1 SI1CR3B1       GUEST CONTROL REGISTER 3, BYTE 1
    008E  142 Signed       2 SI1CR3SA (0)   Secondary ASN
    008E  142 Bitstring    1 SI1CR3B2       GUEST CONTROL REGISTER 3, BYTE 2
    008F  143 Bitstring    1 SI1CR3B3       GUEST CONTROL REGISTER 3, BYTE 3
    0090  144 Signed       4 SI1CR4 (0)     GUEST CONTROL REGISTER 4
    0090  144 Signed       2 SI1CR4AX (0)   Guest control register 4 - HWORD
                                            0 extended authorization index
                                            (AX)
    0090  144 Bitstring    1 SI1CR4B0       GUEST CONTROL REGISTER 4, BYTE 0
    0091  145 Bitstring    1 SI1CR4B1       GUEST CONTROL REGISTER 4, BYTE 1
    0092  146 Signed       2 SI1CR4PA (0)   Guest control register 4 - HWORD
                                            1 Primary address space number
                                            (PASN)
    0092  146 Bitstring    1 SI1CR4B2       GUEST CONTROL REGISTER 4, BYTE 2
    0093  147 Bitstring    1 SI1CR4B3       GUEST CONTROL REGISTER 4, BYTE 3
    0094  148 Signed       4 SI1CR5 (0)     GUEST CONTROL REGISTER 5
    0094  148 Bitstring    1 SI1CR5B0       GUEST CONTROL REGISTER 5, BYTE 0
    0095  149 Bitstring    1 SI1CR5B1       GUEST CONTROL REGISTER 5, BYTE 1
    0096  150 Bitstring    1 SI1CR5B2       GUEST CONTROL REGISTER 5, BYTE 2
    0097  151 Bitstring    1 SI1CR5B3       GUEST CONTROL REGISTER 5, BYTE 3
    0098  152 Signed       4 SI1CR6 (0)     GUEST CONTROL REGISTER 6
    0098  152 Bitstring    1 SI1CR6B0       GUEST CONTROL REGISTER 6, BYTE 0
    0099  153 Bitstring    1 SI1CR6B1       GUEST CONTROL REGISTER 6, BYTE 1
    009A  154 Bitstring    1 SI1CR6B2       GUEST CONTROL REGISTER 6, BYTE 2
    009B  155 Bitstring    1 SI1CR6B3       GUEST CONTROL REGISTER 6, BYTE 3
    009C  156 Signed       4 SI1CR7 (0)     GUEST CONTROL REGISTER 7
    009C  156 Bitstring    1 SI1CR7B0       GUEST CONTROL REGISTER 7, BYTE 0
    009D  157 Bitstring    1 SI1CR7B1       GUEST CONTROL REGISTER 7, BYTE 1
    009E  158 Bitstring    1 SI1CR7B2       GUEST CONTROL REGISTER 7, BYTE 2
    009F  159 Bitstring    1 SI1CR7B3       GUEST CONTROL REGISTER 7, BYTE 3
    00A0  160 Signed       4 SI1CR8 (0)     GUEST CONTROL REGISTER 8
    00A0  160 Signed       2 SI1CR8AX (0)   Extended authorization index
    00A0  160 Bitstring    1 SI1CR8B0       GUEST CONTROL REGISTER 8, BYTE 0
    00A1  161 Bitstring    1 SI1CR8B1       GUEST CONTROL REGISTER 8, BYTE 1
    00A2  162 Signed       2 SI1CR8MM (0)   MONITOR CALL EVENT MASK
    00A2  162 Bitstring    1 SI1CR8B2       GUEST CONTROL REGISTER 8, BYTE 2
    00A3  163 Bitstring    1 SI1CR8B3       GUEST CONTROL REGISTER 8, BYTE 3
              ..1. ....      SI1MCL10       X'20' SI1MCL10 Monitor call class
                                            10 indicator
    00A4  164 Signed       4 SI1CR9 (0)     GUEST CONTROL REGISTER 9
    00A4  164 Bitstring    1 SI1CR9B0       GUEST CONTROL REGISTER 9, BYTE 0
    00A5  165 Bitstring    1 SI1CR9B1       GUEST CONTROL REGISTER 9, BYTE 1
    00A6  166 Bitstring    1 SI1CR9GM (2)   PER GPR ALTERATION MASK
    00A8  168 Signed       4 SI1CR10        GUEST CONTROL REGISTER 10
    00AC  172 Signed       4 SI1CR11        GUEST CONTROL REGISTER 11
    00B0  176 Signed       4 SI1CR12 (0)    GUEST CONTROL REGISTER 12
    00B0  176 Bitstring    1 SI1CRCB0       GUEST CONTROL REGISTER 12,BYTE 0
              1... ....      CRCBRCTL       X'80' CRCBRCTL BRANCH TRACE
                                            CONTROL BIT. WHEN ON, BALR, BASR,
                                            BASSM, BAKR AND BSG INST MAY BE
                                            TRACED BY THE HARDWARE. Note that
                                            for zArch, this bit is moved to
                                            GCRC0.0 of a 64-bit CRC with a
                                            label of CRCBTCTL.
    00B1  177 Bitstring    1 SI1CRCB1       GUEST CONTROL REGISTER 12,BYTE 1
    00B2  178 Bitstring    1 SI1CRCB2       GUEST CONTROL REGISTER 12,BYTE 2
    00B3  179 Bitstring    1 SI1CRCB3       GUEST CONTROL REGISTER 12,BYTE 3
    00B4  180 Signed       4 SI1CR13 (0)    GUEST CONTROL REGISTER 13
    00B4  180 Bitstring    1 SI1CRDB0       GUEST CONTROL REGISTER 13,BYTE 0
    00B5  181 Bitstring    1 SI1CRDB1       GUEST CONTROL REGISTER 13,BYTE 1
    00B6  182 Bitstring    1 SI1CRDB2       GUEST CONTROL REGISTER 13,BYTE 2
    00B7  183 Bitstring    1 SI1CRDB3       GUEST CONTROL REGISTER 13,BYTE 3
    00B8  184 Signed       4 SI1CR14 (0)    GUEST CONTROL REGISTER 14
    00B8  184 Bitstring    1 SI1CREB0       GUEST CONTROL REGISTER 14,BYTE 0
    00B9  185 Bitstring    1 SI1CREB1       GUEST CONTROL REGISTER 14,BYTE 1
    00BA  186 Bitstring    1 SI1CREB2       GUEST CONTROL REGISTER 14,BYTE 2
    00BB  187 Bitstring    1 SI1CREB3       GUEST CONTROL REGISTER 14,BYTE 3
    00BC  188 Signed       4 SI1CR15 (0)    GUEST CONTROL REGISTER 15 MACHINE
                                            CHECK EXTENDED LOG ADDR
    00BC  188 Bitstring    1 SI1CRFB0       GUEST CONTROL REGISTER 15,BYTE 0
    00BD  189 Bitstring    1 SI1CRFB1       GUEST CONTROL REGISTER 15,BYTE 1
    00BE  190 Bitstring    1 SI1CRFB2       GUEST CONTROL REGISTER 15,BYTE 2
    00BF  191 Bitstring    1 SI1CRFB3       GUEST CONTROL REGISTER 15,BYTE 3
                 INTERRUPTION INTERCEPTION AREA
                 (APPROXIMATELY MAPS GUEST STORAGE X'80' TO X'9F')
    00C0  192 Address      4 SI1DPTE        ADDRESS OF HOST PTE FOR MVPG
                                            DESTINATION OPERAND
    00C4  196 Address      4 SI1SPTE (0)    ADDRESS OF HOST PTE FOR MVPG
                                            SOURCE OPERAND
    00C4  196 Signed       4 SI1IEXCF (0)   EXTERNAL INTERRUPTION PARAMETERS
    00C4  196 Signed       2 SI1IEXCA       EXTERNAL INTERRUPTION CPU ADDR
    00C6  198 Signed       2 SI1IEXCD (0)   EXTERNAL INTERRUPTION CODE
    00C6  198 Bitstring    1 SI1IEXCL       EXTERNAL INTERRUPTION CLASS CODE
              00000000       EXTICL00       00 EXTICL00 CLASS 00 EXTERNAL
                                            INTERRUPTS (INTERRUPT KEY,
                                            INTERVAL TIMER)
              00000010       EXTICL10       16 EXTICL10 CLASS 10 EXTERNAL
                                            INTERRUPTS (TIMER, COMPARATOR,
                                            TOD SYNCH)
              00000012       EXTICL12       18 EXTICL12 CLASS 12 EXTERNAL
                                            INTERRUPTS (MULTI-CPU SIGNALS)
              00000014       EXTICL14       20 EXTICL14 CLASS 14 EXTERNAL
                                            INTERRUPTS (ETR INTERRUPTS)
              00000020       EXTICL20       32 EXTICL20 Class 20 external
                                            interrupts (Time zone transition)
              00000024       EXTICL24       36 EXTICL24 CLASS 24 EXTERNAL
                                            INTERRUPTS (SERVICE SIGNALS)
              00000026       EXTICL26       38 EXTICL26 CLASS 26 EXTERNAL
                                            INTERRUPTS (ESA/XC INTERRUPTS)
              00000040       EXTICL40       64 EXTICL40 CLASS 40 EXTERNAL
                                            INTERRUPTS (VMCF AND IUCV
                                            COMMUNICATION)
    00C7  199 Bitstring    1 SI1IEXCT       EXTERNAL INTERRUPTION TYPE CODE
              00000040       EXTIKEY        64 EXTIKEY CODE X'0040' INTERRUPT
                                            KEY
              00000080       EXTITMR        128 EXTITMR CODE X'0080' 370
                                            INTERVAL TIMER
              00000003       EXTITSYN       03 EXTITSYN CODE X'1003' TOD
                                            SYNCH CHECK
              00000004       EXTICKC        04 EXTICKC CODE X'1004' CLOCK
                                            COMPARATOR
              00000005       EXTICPU        05 EXTICPU CODE X'1005' CPU TIMER
              00000000       EXTIMALF       00 EXTIMALF CODE X'1200'
                                            MALFUNCTION ALERT
              00000001       EXTIEMGS       01 EXTIEMGS CODE X'1201'
                                            EMERGENCY SIGNAL
              00000002       EXTICALL       02 EXTICALL CODE X'1202' EXTERNAL
                                            CALL
              00000006       EXTIETR        06 EXTIETR CODE X'1406' ETR
                                            INTERRUPT
              00000004       EXTITZCH       04 EXTITZCH CODE X'2004' Time
                                            Zone Change
              00000001       EXTISVSG       01 EXTISVSG CODE X'2401' SERVICE
                                            SIGNAL
              00000002       EXTIPVM        02 EXTIPVM CODE X'2402' PVM
                                            LOGICAL DEVICE
              00000003       EXTIXC         03 EXTIXC CODE X'2603' ESA/XC and
                                            other VM external interrupts
              00000000       EXTIIUCV       00 EXTIIUCV CODE X'4000' IUCV
                                            INTERRUPTION
              00000001       EXTIVMCF       01 EXTIVMCF CODE X'4001' VMCF
                                            INTERRUPTION
    00C8  200 Signed       4 *              RESERVED FOR IBM HARDWARE USE
    00CC  204 Signed       4 SI1IPRCD (0)   PROGRAM INTERRUPT ILC AND CODE
    00CC  204 Signed       2 SI1IPRCL       PROGRAM INTERRUPT ILC
    00CE  206 Signed       2 SI1IPRCC (0)   PROGRAM INTERRUPT CODE, HALFWORD
              00000119       PRGICROP       X'0119' PRGICROP Crypto Operation
                                            Exception
              00000136       PRGIADCP       X'0136' PRGIADCP Addressing
                                            capability
              00008000       PRGIARPC       X'8000' PRGIARPC ARITHMETIC
                                            PARTIAL COMPLETION BIT OF THE
                                            EXCEPTION EXTENSION CODE (BIT 0
                                            OF THE PROGRAM CHECK INTERRUPT
                                            CODE)
    00CE  206 Bitstring    1 SI1IPRC0       Program interrupt code byte 0
    00CF  207 Bitstring    1 SI1IPRC1       Program interrupt code byte 1
              00000000       PRGICCLR       X'00' PRGICCLR USED TO CLEAR
                                            PRGICODE
              00000001       PRGIOPER       X'01' PRGIOPER OPERATION
              00000002       PRGIPRIV       X'02' PRGIPRIV PRIVILEGED
                                            OPERATION
              00000003       PRGIEXEC       X'03' PRGIEXEC EXECUTE
              00000004       PRGIPROT       X'04' PRGIPROT PROTECTION
              00000005       PRGIADDR       X'05' PRGIADDR ADDRESSING
              00000006       PRGISPEC       X'06' PRGISPEC SPECIFICATION
              00000007       PRGIDATA       X'07' PRGIDATA DATA
              00000008       PRGIFXDV       X'08' PRGIFXDV FIXED POINT
                                            OVERFLOW
              00000009       PRGIFDIV       X'09' PRGIFDIV FIXED POINT DIVIDE
              0000000A       PRGIDECO       X'0A' PRGIDECO DECIMAL OVERFLOW
              0000000B       PRGIDDIV       X'0B' PRGIDDIV DECIMAL DIVIDE
              0000000C       PRGIEXPO       X'0C' PRGIEXPO EXPONENT OVERFLOW
              0000000D       PRGIEXPU       X'0D' PRGIEXPU EXPONENT UNDERFLOW
              0000000E       PRGISGNF       X'0E' PRGISGNF SIGNIFICANCE
              0000000F       PRGIFPDV       X'0F' PRGIFPDV FLOATING POINT
                                            DIVIDE
              00000010       PRGISEG        X'10' PRGISEG SEGMENT TRANSLATION
              00000011       PRGIPAGE       X'11' PRGIPAGE PAGE TRANSLATION
              00000012       PRGITSPC       X'12' PRGITSPC TRANSLATION
                                            SPECIFICATION
              00000013       PRGISPOP       X'13' PRGISPOP SPECIAL OPERATION
              00000014       PRGIPPF        X'14' PRGIPPF PSEUDO-PAGE-FAULT
                                            (SOFTWARE ONLY)
              00000015       PRGIOPND       X'15' PRGIOPND OPERAND (370/XA
                                            ONLY)
              00000016       PRGITRAC       X'16' PRGITRAC TRACE TABLE FULL
                                            (370/XA ONLY)
              00000017       PRGIASNT       X'17' PRGIASNT ASN TRANSLATION
                                            SPECIFICATION EXCEPTION
              0000001A       PRGIBVOL       x'1A' PRGIBVOL Block-Volatility
                                            exception
              0000001C       PRGISPSW       X'1C' PRGISPSW SPACE SWITCH EVENT
              0000001E       PRGIUNOP       X'1E' PRGIUNOP UNNORMALIZED
                                            OPERAND EXCEPTION
              0000001F       PRGIPCTR       X'1F' PRGIPCTR PC-TRANSLATION
                                            SPECIFICATION
              00000020       PRGIAFXT       X'20' PRGIAFXT AFX TRANSLATION
              00000021       PRGIASXT       X'21' PRGIASXT ASX TRANSLATION
              00000022       PRGILXTR       X'22' PRGILXTR LX TRANSLATION
              00000023       PRGIEXTR       X'23' PRGIEXTR EX TRANSLATION
              00000024       PRGIPRIA       X'24' PRGIPRIA PRIMARY AUTHORITY
              00000025       PRGISECA       X'25' PRGISECA SECONDARY
                                            AUTHORITY
              00000026       PRGILFXTS      X'26' PRGILFXTS LFX translation
                                            specification
              00000027       PRGILSXTS      X'27' PRGILSXTS LSX translation
                                            specification
              00000028       PRGIALTS       X'28' PRGIALTS ALET SPECIFICATION
              00000029       PRGIALNT       X'29' PRGIALNT ALEN TRANSLATION
              0000002A       PRGIALES       X'2A' PRGIALES ALE SEQUENCE
              0000002B       PRGIASTV       X'2B' PRGIASTV ASTE VALIDITY
              0000002C       PRGIASTS       X'2C' PRGIASTS ASTE SEQUENCE
              0000002D       PRGIEXTA       X'2D' PRGIEXTA EXTENDED AUTHORITY
              0000002E       PRGILSTES      X'2E' PRGILSTES LSTE Sequence
              0000002F       PRGIASTI       X'2F' PRGIASTI ASTE Instance
                                            number
              00000030       PRGISTKF       X'30' PRGISTKF STACK FULL
              00000031       PRGISTKE       X'31' PRGISTKE STACK EMPTY
              00000032       PRGISTKS       X'32' PRGISTKS STACK
                                            SPECIFICATION
              00000033       PRGISTKT       X'33' PRGISTKT STACK TYPE
              00000034       PRGISTKO       X'34' PRGISTKO STACK OPERATION
              00000035       PRGIHIX1       X'35' PRGIHIX1 Host-indicated
                                            exception, #1
              00000036       PRGIHIX2       X'36' PRGIHIX2 Host-indicated
                                            exception, #2
              00000038       PRGIASCT       X'38' PRGIASCT ASCE type
              00000039       PRGIRFT        X'39' PRGIRFT Region first
                                            translation
              0000003A       PRGIRST        X'3A' PRGIRST Region second
                                            translation
              0000003B       PRGIRTT        X'3B' PRGIRTT Region third
                                            translation
              00000040       PRGIMC         X'40' PRGIMC MONITOR CALL
              0000007F       PRGICMSK       X'7F' PRGICMSK MASK TO ISOLATE
                                            PROGRAM CHECK
              00000080       PRGIPER        X'80' PRGIPER PROGRAM EVENT
                                            RECORDING, POSSIBLY WITH ANOTHER
                                            EXCEPTION CODE .
    00D0  208 Signed       4 SI1ITRAD       TRANSLATION EXCEPTION ADDRESS
    00D0  208 Bitstring    3 *              (top bytes of fault address)
    00D3  211 Bitstring    1 SI1ITRA3
    00D0  208 Bitstring    1 SI1SSCTL       Space-switch-event control:
              1... ....      SI1SSON        X'80' SI1SSON
                                            Space-switch-control bit was on
    00D1  209 Bitstring    1 SI1SSCT2       when a space switch program
                                            interruption occurs, the old
                                            value of the space-switch-event
                                            control bit is saved in the
                                            high-order bit of SIxSSCTL. The
                                            remaining bits of SIxSSCTL and
                                            SIxSSCT2 are set to 0.
    00D2  210 Signed       2 SI1OPASN (0)   Old PASN - set for a space-
                                            switch-event program interrupt
    00D2  210 Bitstring    1 *              Reserved for IBM hardware use
    00D3  211 Bitstring    1 SI1ADDSP       Address space flag indicates
                                            where STD value come from
              00000000       SI1PRSTD       00 SI1PRSTD STD is obtained from
                                            CR1
              00000001       SI1ARSTD       01 SI1ARSTD STD is obtained from
                                            AR-specified
              00000002       SI1SESTD       02 SI1SESTD STD is obtained from
                                            CR7
              00000003       SI1HOSTD       03 SI1HOSTD STD is obtained from
                                            CR13
    00D0  208 Signed       4 SI1FPARM (0)   Interruption parameter
    00D0  208 Bitstring    3 *
    00D3  211 Bitstring    1 SI1DXCOD       Data-exception code
    00D4  212 Signed       2 SI1IMNCL       MONITOR CLASS CODE
    00D6  214 Signed       2 SI1PERCL (0)   PER class code
    00D6  214 Bitstring    1 SI1PERCD       PER event code identifier
    00D7  215 Bitstring    1 SI1PERZF       PER interrupt code
              .1.. ....      SI1ATMID       X'40' SI1ATMID Addressing and
                                            translation mode identification
                                            (ATMID) validity bit
              ..1. ....      SI1ATM32       X'20' SI1ATM32 ATMID PSW bit 32
              ...1 ....      SI1ATM05       X'10' SI1ATM05 ATMID PSW bit 05
              .... 1...      SI1ATM16       X'08' SI1ATM16 ATMID PSW bit 16
              .... .1..      SI1ATM17       X'04' SI1ATM17 ATMID PSW bit 17
              .... ..1.      SI1PSTD1       X'02' SI1PSTD1 STD ID bit 1
              .... ...1      SI1PSTD2       X'01' SI1PSTD2 STD ID bit 2
              .111 1111      SI1ATM         SI1ATMID+SI1ATM32+SI1ATM05+SI1ATM
                                            16+SI1ATM17+SI1PSTD1+SI 1PSTD2
                                            Mask to reset ATM bits
              .... ....      SI1PRSEG       X'00' SI1PRSEG STD ID bits both
                                            off. This is Primary Segment
                                            Table Designation obtained from
                                            CR-1
              .... ...1      SI1ARSEG       X'01' SI1ARSEG STD ID bits =
                                            '01'x. This is AR specified
              .... ..1.      SI1SESEG       X'02' SI1SESEG STD ID bits =
                                            '10'x. This is Secondary Segment
                                            Table Designation obtained from
                                            CR-7
              .... ..11      SI1HOSEG       X'03' SI1HOSEG STD ID bits both
                                            on. This is Home Segment Table
                                            Designation obtained from CR-13
    00D8  216 Signed       4 SI1PERAD       PER EVENT INSTRUCTION ADDRESS
    00DC  220 Signed       4 SI1IMNCD       MONITOR CODE
    00E0  224 Bitstring    1 SI1XCPAR       EXCEPTION ACCESS IDENTIFICATION
              ..1. ....      PRGXCPRI       X'20' PRGXCPRI Primary-tran
                                            problem (not Access Register
                                            related)
              ...1 ....      PRGXCSEC       X'10' PRGXCSEC Secondary-tran
                                            problem (not Access Register
                                            related)
              .... 1111      PRGXCREG       X'0F' PRGXCREG Access-register
                                            number Maximum number of real
                                            processors
              .1.. ....      MAXRPROC       64 MAXRPROC Maximum number of
                                            real processors supported by
                                            certain internal data structures
              ..11 1111      MAXCPUAD       63 MAXCPUAD Maximum CPU address
                                            supported
    00E1  225 Bitstring    1 SI1PERAR       PER ACCESS IDENTIFICATION
    00E2  226 Bitstring    1 SI1OPRID (0)   Operand access identification
    00E2  226 Bitstring    3 SI1XSO         Expanded storage origin
    00E5  229 Bitstring    3 SI1XSL         Expanded storage limit
    00E8  232 Signed       4 SI1XCPAL (0)   Exception ALET (corresponds to
                                            prefix offset 168-171).
                 FOLLOWING INTERRUPTION INFORMATION STORED FOR SIE
                 INTERCEPTION CODES 60 AND 64. SAME INFORMATION AS
                 WOULD BE STORED IN GUEST STORAGE 184-105.
    00E8  232 Signed       4 SI1IOSID (0)   SUBCHANNEL IDENTIFICATION
    00E8  232 Signed       2 SI1IOINT       I/O INTERRUPT CONSTANT - 0001
    00EA  234 Signed       2 SI1IORNM       I/O INTERRUPT SUBCHANNEL NUMBER
    00EC  236 Signed       4 SI1INPRM       I/O INTERRUPT PARAMETER
    00F0  240 Bitstring    1 SI1IVISC       00VISC000
    00F1  241 Bitstring    1 SI1IZONE       ZONE
    00F2  242 Bitstring    1 SI1ISCHI       I0000000 INTERRUPT INTERLOCK CNTL
              1... ....      SI1SCHI1       X'80' SI1SCHI1 INTERRUPT
                                            INTERLOCK IS ON
    00F3  243 Bitstring    1 *              RESERVED
    00F4  244 Bitstring    6 SI1IBM1        Reserved for IBM hardware use
    00FA  250 Bitstring    2 *              Reserved for IBM hardware use
    00FC  252 Signed       4 *              Reserved for IBM hardware use
              00000100       SI1BLEN        *-SI1BK BLOCK SIZE IN BYTES
                  Redefine interception parameters for validity
                  interception.
    0056   86 Bitstring    4 SI1VIRSN (0)   Validity interception reason code
    0056   86 Bitstring    1 SI1VIWHO       "Who" recognized the validity
                                            interception? How many levels
                                            deep in interpretive execution,
                                            and what component?
    0057   87 Bitstring    1 SI1VIWHN       "When" was the condition
                                            encountered (SIE entry, exit,
                                            instruction interpretation,
                                            etc.)?
    0058   88 Signed       2 SI1VIWHY       "Why" did the validity inter-
                                            ception occur? What was the
                                            specific defect in the guest
                                            definition or host state?
    005A   90 Bitstring    6 SI1VIRSV       Reserved; zeros stored on
                                            validity interception
         |        I/O INTERPRETATION LEVEL 2 RE-DEFINITION          |
    0074  116 Bitstring    1 SI1AZN         ACTIVE ZONE NUMBER
    0075  117 Bitstring    1 SI1RPLZN       REPLACEMENT ZONE NUMBER
    0076  118 Signed       2 *              IRB DS MASK (UNCHANGED FROM I/O
                                            INTERPRETATION LEVEL 1)
    0078  120 Bitstring    1 SI1AZM         ALERT GENERATING ZONE MASK
    0079  121 Bitstring    2 SI1IBM2        RESERVED FOR IBM HARDWARE USE
    007B  123 Bitstring    1 *              RESERVED FOR IBM HARDWARE USE

#### SI1BK Storage Layout

    *** SI1BK - SIE STATE DESCRIPTION (format 1)
    *
    *     +------+------+------+------+---------------------------+
    *   0 |:NTVCT|:STATC|:MODEX|:MODE |         SI1PREFX          |
    *     +------+------+------+------+---------------------------+
    *   8 |  SI1MSORG   |  SI1GMSIZ   |///////////////////////////|
    *     +-------------+-------------+---------------------------+
    *  10 |         SI1EG14           |         SI1EG15           |
    *     +------+------+------+------+------+--------------------+
    *  18 |:PSW0B|:PSW1 |:PSW2 |:PSW3 |:PSW4B|     SI1PSW57       |
    *     +------+------+------+------+------+--------------------+
    *  20 |         SI1HIRES          |         SI1LORES          |
    *     +---------------------------+---------------------------+
    *  28 |                       SI1CPUTM                        |
    *     +-------------------------------------------------------+
    *  30 |                        SI1CKC                         |
    *     +-------------------------------------------------------+
    *  38 |                       SI1EPOCH                        |
    *     +------+------+------+------+------+------+-------------+
    *  40 |:SVCTL|:SVC1N|:SVC2N|:SVC3N|:LCTB0|:LCTB1|  SI1ICPUA   |
    *     +------+------+------+------+------+------+------+------+
    *  48 |:ICPT0|:ICPT1|:ICPT2|:ICPT3|:ECA0 |:ECA1 |:ECA2 |:ECA3 |
    *     +------+------+------+------+------+------+------+------+
    *  50 |:ICODE|:ICFLG|  SI1IHCPU   |  SI1TODPF   |:INSTO|:INSTE|
    *     +------+------+------+------+-------------+------+------+
    *  58 |:IPB0 |:IPB1 |:IPB2 |:IPB3 |          SI1IPC           |
    *     +------+------+------+------+---------------------------+
    *  60 |:RCPB0|//////|:RCPB2|//////|         SI1ISCAA          |
    *     +------+------+------+------+---------------------------+
    *  68 |         SI1SNORG          |///////////////////////////|
    *     +-------------+-------------+------+------+------+------+
    *  70 |  SI1TCHCL   |/////////////|:DEDSC|:REPSC|:DVST |:SCST |
    *     +-------------+------+------+------+------+------+------+
    *  78 |     SI1XSLIM       |//////|///////////////////////////|
    *     +------+------+------+------+------+------+------+------+
    *  80 |:CR0B0|:CR0B1|:CR0B2|:CR0B3|:CR1B0|:CR1B1|:CR1B2|:CR1B3|
    *     +------+------+------+------+------+------+------+------+
    *  88 |:CR2B0|:CR2B1|:CR2B2|:CR2B3|:CR3B0|:CR3B1|:CR3B2|:CR3B3|
    *     +------+------+------+------+------+------+------+------+
    *  90 |:CR4B0|:CR4B1|:CR4B2|:CR4B3|:CR5B0|:CR5B1|:CR5B2|:CR5B3|
    *     +------+------+------+------+------+------+------+------+
    *  98 |:CR6B0|:CR6B1|:CR6B2|:CR6B3|:CR7B0|:CR7B1|:CR7B2|:CR7B3|
    *     +------+------+------+------+------+------+------+------+
    *  A0 |:CR8B0|:CR8B1|:CR8B2|:CR8B3|:CR9B0|:CR9B1|  SI1CR9GM   |
    *     +------+------+------+------+------+------+-------------+
    *  A8 |         SI1CR10           |         SI1CR11           |
    *     +------+------+------+------+------+------+------+------+
    *  B0 |:CRCB0|:CRCB1|:CRCB2|:CRCB3|:CRDB0|:CRDB1|:CRDB2|:CRDB3|
    *     +------+------+------+------+------+------+------+------+
    *  B8 |:CREB0|:CREB1|:CREB2|:CREB3|:CRFB0|:CRFB1|:CRFB2|:CRFB3|
    *     +------+------+------+------+------+------+------+------+
    *  C0 |         SI1DPTE           |  SI1IEXCA   |:IEXCL|:IEXCT|
    *     +---------------------------+-------------+------+------+
    *  C8 |///////////////////////////|  SI1IPRCL   |:IPRC0|:IPRC1|
    *     +---------------------------+-------------+------+------+
    *  D0 |         SI1ITRAD          | D4
    *     +---------------------------+
    *
    *** SI1BK - SIE STATE DESCRIPTION (format 1)

    *** Overlay for SI1ITRAD in SI1BK
    *
    *     +--------------------+------+
    *  D0 |////////////////////|:ITRA3| D4
    *     +--------------------+------+
    *
    *** Overlay for SI1ITRAD in SI1BK

    *** Overlay for SI1ITRAD in SI1BK
    *
    *     +------+------+------+------+
    *  D0 |:SSCTL|:SSCT2|//////|:ADDSP| D4
    *     +------+------+------+------+
    *
    *** Overlay for SI1ITRAD in SI1BK

    *** Overlay for SI1ITRAD in SI1BK
    *
    *     +--------------------+------+-------------+------+------+
    *  D0 |////////////////////|:DXCOD|  SI1IMNCL   |:PERCD|:PERZF|
    *     +--------------------+------+-------------+------+------+
    *  D8 |         SI1PERAD          |         SI1IMNCD          |
    *     +------+------+-------------+------+--------------------+
    *  E0 |:XCPAR|:PERAR|      SI1XSO        |      SI1XSL        |
    *     +------+------+-------------+------+--------------------+
    *  E8 |  SI1IOINT   |  SI1IORNM   |         SI1INPRM          |
    *     +------+------+------+------+---------------------------+
    *  F0 |:IVISC|:IZONE|:ISCHI|//////|         SI1IBM1-          |
    *     +------+------+------+------+---------------------------+
    *  F8 |   -(0F4)    |/////////////|///////////////////////////|
    *     +-------------+-------------+---------------------------+
    * 100
    *
    *** Overlay for SI1ITRAD in SI1BK

    *** Overlay for SI1IPARM in SI1BK
    *
    *                                               +------+------+
    *  50 ...                                    56 |:VIWHO|:VIWHN|
    *     +-------------+---------------------------+------+------+
    *  58 |  SI1VIWHY   |                SI1VIRSV                 |
    *     +-------------+-----------------------------------------+
    *  60
    *
    *** Overlay for SI1IPARM in SI1BK

    *** Overlay for SI1IOPCT in SI1BK
    *
    *                                 +------+------+-------------+
    *  70 ...                      74 |SI1AZN|:RPLZN|/////////////|
    *     +------+-------------+------+------+------+-------------+
    *  78 |SI1AZM|  SI1IBM2    |//////| 7C
    *     +------+-------------+------+
    *
    *** Overlay for SI1IOPCT in SI1BK

#### SI1BK Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    ALDMAX         001C SI1PSW4B
    ALDMIN         001C 80
    ALD0ALLM       001C 7F
    ALD0ALNS       001C 03
    ALD0ALOM       001C SI1PSW4B
    ALD0ALUN       001C 80
    ALD0ALUS       001C 07
    ASWASTEOM      001C SI1PSW4B
    CRCBRCTL       00B0 80
    CR1SSXA        0084 80
    CR1SS370       0087 01
    CSWABC         0075 01
    CSWATTN        0076 80
    CSWBUSY        0076 10
    CSWCBS         0076 70
    CSWCCC         0077 04
    CSWCDC         0077 08
    CSWCE          0076 08
    CSWCEDC        0076 2C
    CSWCEDE        0076 0C
    CSWCHC         0077 01
    CSWCUE         0076 20
    CSWDE          0076 04
    CSWDEA         0076 84
    CSWHCE         0077 0E
    CSWHDVA        0075 02
    CSWIFCC        0077 02
    CSWIL          0077 40
    CSWIOINC       0075 04
    CSWIRC         0075 38
    CSWMINS        0075 40
    CSWMSV         0075 3E
    CSWPATH        0075 80
    CSWPCE         0077 31
    CSWPCI         0077 80
    CSWPRG         0077 20
    CSWPROT        0077 10
    CSWQDIO        0075 80
    CSWSM          0076 40
    CSWSMBSY       0076 50
    CSWUC          0076 02
    CSWUE          0076 01
    DATBXM         001C SI1PSW4B
    DATPXM         001C SI1PSW4B
    DATSXM         001C SI1PSW4B
    DUWDUCTOM      001C SI1PSW4B
    EXTICALL       00C7 00000002
    EXTICKC        00C7 00000004
    EXTICL00       00C6 00000000
    EXTICL10       00C6 00000010
    EXTICL12       00C6 00000012
    EXTICL14       00C6 00000014
    EXTICL20       00C6 00000020
    EXTICL24       00C6 00000024
    EXTICL26       00C6 00000026
    EXTICL40       00C6 00000040
    EXTICPU        00C7 00000005
    EXTIEMGS       00C7 00000001
    EXTIETR        00C7 00000006
    EXTIIUCV       00C7 00000000
    EXTIKEY        00C7 00000040
    EXTIMALF       00C7 00000000
    EXTIPVM        00C7 00000002
    EXTISVSG       00C7 00000001
    EXTITMR        00C7 00000080
    EXTITSYN       00C7 00000003
    EXTITZCH       00C7 00000004
    EXTIVMCF       00C7 00000001
    EXTIXC         00C7 00000003
    KEYACC         001C F0
    KEYACCF        001C F8
    KEYCHG         001C 02
    KEYFETCH       001C 08
    KEYISOL        001C FE
    KEYOPEN        001C 09
    KEYRC          001C 06
    KEYREF         001C 04
    MAXCPUAD       00E0 3F
    MAXRPROC       00E0 40
    PRGIADCP       00CE 00000136
    PRGIADDR       00CF 00000005
    PRGIAFXT       00CF 00000020
    PRGIALES       00CF 0000002A
    PRGIALNT       00CF 00000029
    PRGIALTS       00CF 00000028
    PRGIARPC       00CE 00008000
    PRGIASCT       00CF 00000038
    PRGIASNT       00CF 00000017
    PRGIASTI       00CF 0000002F
    PRGIASTS       00CF 0000002C
    PRGIASTV       00CF 0000002B
    PRGIASXT       00CF 00000021
    PRGIBVOL       00CF 0000001A
    PRGICCLR       00CF 00000000
    PRGICMSK       00CF 0000007F
    PRGICROP       00CE 00000119
    PRGIDATA       00CF 00000007
    PRGIDDIV       00CF 0000000B
    PRGIDECO       00CF 0000000A
    PRGIEXEC       00CF 00000003
    PRGIEXPO       00CF 0000000C
    PRGIEXPU       00CF 0000000D
    PRGIEXTA       00CF 0000002D
    PRGIEXTR       00CF 00000023
    PRGIFDIV       00CF 00000009
    PRGIFPDV       00CF 0000000F
    PRGIFXDV       00CF 00000008
    PRGIHIX1       00CF 00000035
    PRGIHIX2       00CF 00000036
    PRGILFXTS      00CF 00000026
    PRGILSTES      00CF 0000002E
    PRGILSXTS      00CF 00000027
    PRGILXTR       00CF 00000022
    PRGIMC         00CF 00000040
    PRGIOPER       00CF 00000001
    PRGIOPND       00CF 00000015
    PRGIPAGE       00CF 00000011
    PRGIPCTR       00CF 0000001F
    PRGIPER        00CF 00000080
    PRGIPPF        00CF 00000014
    PRGIPRIA       00CF 00000024
    PRGIPRIV       00CF 00000002
    PRGIPROT       00CF 00000004
    PRGIRFT        00CF 00000039
    PRGIRST        00CF 0000003A
    PRGIRTT        00CF 0000003B
    PRGISECA       00CF 00000025
    PRGISEG        00CF 00000010
    PRGISGNF       00CF 0000000E
    PRGISPEC       00CF 00000006
    PRGISPOP       00CF 00000013
    PRGISPSW       00CF 0000001C
    PRGISTKE       00CF 00000031
    PRGISTKF       00CF 00000030
    PRGISTKO       00CF 00000034
    PRGISTKS       00CF 00000032
    PRGISTKT       00CF 00000033
    PRGITRAC       00CF 00000016
    PRGITSPC       00CF 00000012
    PRGIUNOP       00CF 0000001E
    PRGXCPRI       00E0 20
    PRGXCREG       00E0 0F
    PRGXCSEC       00E0 10
    PSWAMODE       001A 40
    PSWASMSK       001A C0
    PSWBA          001C 80
    PSWCONB1       001C 10
    PSWCONB2       001C 20
    PSWCOND        001A 30
    PSWCONDB       001C 30
    PSWCOND1       001A 10
    PSWCOND2       001A 20
    PSWDECO        001A 04
    PSWDECOB       001C 04
    PSWECMD        0019 08
    PSWEXSM        0018 01
    PSWEXSMB       0018 01
    PSWEXUN        001A 02
    PSWEXUNB       001C 02
    PSWFIXO        001A 08
    PSWFIXOB       001C 08
    PSWHIADR       001C 7F
    PSWHMODE       001A C0
    PSWILCBC       001C C0
    PSWILCB2       001C 40
    PSWILCB4       001C 80
    PSWIOMSK       0018 FC
    PSWIOSM        0018 02
    PSWIOSMB       0018 02
    PSWKEY         0019 F0
    PSWMAPPD       0019 01
    PSWMCHK        0019 04
    PSWPERA        0018 40
    PSWPMODE       001A 00
    PSWPMSK        001A 0F
    PSWPMSKB       001C 0F
    PSWPROB        0019 01
    PSWSIGN        001A 01
    PSWSIGNB       001C 01
    PSWSMODE       001A 80
    PSWTRAN        0018 04
    PSWWAIT        0019 02
    PSW31AMF       001C 00
    PSW31BT        001C 80
    PTE2PGM        001C SI1PSW4B
    PTE2PTO        001C SI1PSW4B
    PTO2PGM        001C SI1PSW4B
    SACAR          001C SI1PSW4B
    SACHOME        001C SI1PSW4B
    SACPRIM        001C 00
    SACSECO        001C SI1PSW4B
    SAM31          001C 1F
    SAM64          001C 40
    SIGPCPU        001C 0C
    SIGPEMER       001C 03
    SIGPEXTC       001C 02
    SIGPICPU       001C 0B
    SIGPIPR        001C 07
    SIGPPR         001C 08
    SIGPRSTR       001C 06
    SIGPSARC       001C 12
    SIGPSENS       001C 01
    SIGPSPFX       001C 0D
    SIGPSRST       001C 15
    SIGPSSTS       001C 0E
    SIGPSSTT       001C 09
    SIGPSTOP       001C 05
    SIGPSTRT       001C 04
    SIGPSXST       001C 11
    SI1ADDSP       00D3
    SI1ARSEG       00D7 01
    SI1ARSTD       00D3 00000001
    SI1ASIST       0060 80
    SI1ATM         00D7 7F
    SI1ATMID       00D7 40
    SI1ATM05       00D7 10
    SI1ATM16       00D7 08
    SI1ATM17       00D7 04
    SI1ATM32       00D7 20
    SI1AZM         0078
    SI1AZN         0074
    SI1BKDF1       004E 00
    SI1BLEN        00FC 00000100
    SI1CKC         0030
    SI1CPUTM       0028
    SI1CPUTN       0028 80
    SI1CPUT0       0028
    SI1CRCB0       00B0
    SI1CRCB1       00B1
    SI1CRCB2       00B2
    SI1CRCB3       00B3
    SI1CRDB0       00B4
    SI1CRDB1       00B5
    SI1CRDB2       00B6
    SI1CRDB3       00B7
    SI1CREB0       00B8
    SI1CREB1       00B9
    SI1CREB2       00BA
    SI1CREB3       00BB
    SI1CRFB0       00BC
    SI1CRFB1       00BD
    SI1CRFB2       00BE
    SI1CRFB3       00BF
    SI1CRS         0080
    SI1CR0         0080
    SI1CR0B0       0080
    SI1CR0B1       0081
    SI1CR0B2       0082
    SI1CR0B3       0083
    SI1CR0XM       0082
    SI1CR1         0084
    SI1CR1B0       0084
    SI1CR1B1       0085
    SI1CR1B2       0086
    SI1CR1B3       0087
    SI1CR1SO       0085
    SI1CR10        00A8
    SI1CR11        00AC
    SI1CR12        00B0
    SI1CR13        00B4
    SI1CR14        00B8
    SI1CR15        00BC
    SI1CR2         0088
    SI1CR2B0       0088
    SI1CR2B1       0089
    SI1CR2B2       008A
    SI1CR2B3       008B
    SI1CR2IM       0088
    SI1CR3         008C
    SI1CR3B0       008C
    SI1CR3B1       008D
    SI1CR3B2       008E
    SI1CR3B3       008F
    SI1CR3KM       008C
    SI1CR3SA       008E
    SI1CR4         0090
    SI1CR4AX       0090
    SI1CR4B0       0090
    SI1CR4B1       0091
    SI1CR4B2       0092
    SI1CR4B3       0093
    SI1CR4PA       0092
    SI1CR5         0094
    SI1CR5B0       0094
    SI1CR5B1       0095
    SI1CR5B2       0096
    SI1CR5B3       0097
    SI1CR6         0098
    SI1CR6B0       0098
    SI1CR6B1       0099
    SI1CR6B2       009A
    SI1CR6B3       009B
    SI1CR7         009C
    SI1CR7B0       009C
    SI1CR7B1       009D
    SI1CR7B2       009E
    SI1CR7B3       009F
    SI1CR8         00A0
    SI1CR8AX       00A0
    SI1CR8B0       00A0
    SI1CR8B1       00A1
    SI1CR8B2       00A2
    SI1CR8B3       00A3
    SI1CR8MM       00A2
    SI1CR9         00A4
    SI1CR9B0       00A4
    SI1CR9B1       00A5
    SI1CR9GM       00A6
    SI1DEDSC       0074
    SI1DPTE        00C0
    SI1DVSCS       0076
    SI1DVST        0076
    SI1DXCOD       00D3
    SI1ECA         004C
    SI1ECALT       004C 08
    SI1ECA0        004C
    SI1ECA1        004D
    SI1ECA2        004E
    SI1ECA3        004F
    SI1ECEXT       004C 80
    SI1ECINT       004C 40
    SI1ECIO2       004C 04
    SI1ECMVP       004C 01
    SI1ECSGP       004C 10
    SI1ECWAI       004C 20
    SI1EC370       004D 20
    SI1EG14        0010
    SI1EG145       0010
    SI1EG15        0014
    SI1ENDOP       0050 00000000
    SI1EPOCH       0038
    SI1EXRUN       0001 01
    SI1EXTMR       0001 02
    SI1FPARM       00D0
    SI1GMSIZ       000A
    SI1GPE         0003 01
    SI1HIRES       0020
    SI1HOSEG       00D7 03
    SI1HOSTD       00D3 00000003
    SI1IBM1        00F4
    SI1IBM2        0079
    SI1ICALT       0050 00000030
    SI1ICBAK       004B 04
    SI1ICBOT       0050 0000000C
    SI1ICBSA       0049 08
    SI1ICCDS       0048 02
    SI1ICCS        0048 04
    SI1ICEX        0051 01
    SI1ICFLG       0051
    SI1ICIF        0051 02
    SI1ICION       0050 00000040
    SI1ICIOR       0050 0000003C
    SI1ICIPT       0048 01
    SI1ICISK       004A 40
    SI1ICLPS       0049 40
    SI1ICLSP       004A 01
    SI1ICNTC       0050 00000004
    SI1ICODE       0050
    SI1ICOUO       0050 0000002C
    SI1ICPC        004A 08
    SI1ICPEX       0050 00000010
    SI1ICPG        004B 02
    SI1ICPIO       0050 00000018
    SI1ICPIX       0050 00000038
    SI1ICPNT       0050 00000008
    SI1ICPOP       0048 80
    SI1ICPR        004B 08
    SI1ICPRG       0048 20
    SI1ICPRO       0048 40
    SI1ICPT        004A 04
    SI1ICPTL       0049 20
    SI1ICPT0       0048
    SI1ICPT1       0049
    SI1ICPT2       004A
    SI1ICPT3       004B
    SI1ICPUA       0046
    SI1ICRRB       004A 10
    SI1ICRUN       0050 00000044
    SI1ICSCK       004B 20
    SI1ICSPT       004B 40
    SI1ICSSK       004A 20
    SI1ICSSM       0049 10
    SI1ICSTC       0049 04
    SI1ICSTK       004A 80
    SI1ICSTN       0049 02
    SI1ICSTO       0049 01
    SI1ICSTP       0050 00000028
    SI1ICTLS       0048
    SI1ICTMR       0050 00000048
    SI1ICTPT       004A 02
    SI1ICTS        0048 08
    SI1ICVAL       0050 00000020
    SI1ICWT        0050 0000001C
    SI1ICXNT       0050 00000014
    SI1IEXCA       00C4
    SI1IEXCD       00C6
    SI1IEXCF       00C4
    SI1IEXCL       00C6
    SI1IEXCT       00C7
    SI1IHCPU       0052
    SI1IMISC       0050 00000024
    SI1IMLT4       0050 00000003
    SI1IMNCD       00DC
    SI1IMNCL       00D4
    SI1INPRM       00EC
    SI1INST        0056
    SI1INSTE       0057
    SI1INSTO       0056
    SI1INTWD       0000
    SI1IOINT       00E8
    SI1IOPCT       0074
    SI1IORNM       00EA
    SI1IOSID       00E8
    SI1IPA         0056 56
    SI1IPARM       0056
    SI1IPA0        0056 00000056
    SI1IPA1        0057 00000057
    SI1IPB         0058
    SI1IPBH0       0058
    SI1IPBH1       005A
    SI1IPB0        0058
    SI1IPB1        0059
    SI1IPB2        005A
    SI1IPB3        005B
    SI1IPC         005C
    SI1IPEXT       0000 01
    SI1IPRCC       00CE
    SI1IPRCD       00CC
    SI1IPRCL       00CC
    SI1IPRC0       00CE
    SI1IPRC1       00CF
    SI1IPSTP       0000 04
    SI1IPVIO       0000 02
    SI1IPWAI       0000 10
    SI1IPXTC       0000 08
    SI1ISCAA       0064
    SI1ISCHI       00F2
    SI1ITMOF       0003 04
    SI1ITMRI       0001 80
    SI1ITRAD       00D0
    SI1ITRA3       00D3
    SI1IVISC       00F0
    SI1IZONE       00F1
    SI1LCTB0       0044
    SI1LCTB1       0045
    SI1LCTLA       0045 20
    SI1LCTLB       0045 10
    SI1LCTLC       0045 08
    SI1LCTLD       0045 04
    SI1LCTLE       0045 02
    SI1LCTLF       0045 01
    SI1LCTLS       0044
    SI1LCTL0       0044 80
    SI1LCTL1       0044 40
    SI1LCTL2       0044 20
    SI1LCTL3       0044 10
    SI1LCTL4       0044 08
    SI1LCTL5       0044 04
    SI1LCTL6       0044 02
    SI1LCTL7       0044 01
    SI1LCTL8       0045 80
    SI1LCTL9       0045 40
    SI1LORES       0024
    SI1MCDS        0002 01
    SI1MCL10       00A3 20
    SI1MODE        0003
    SI1MODEX       0002
    SI1MSORG       0008
    SI1NTVCT       0000
    SI1OPASN       00D2
    SI1OPRID       00E2
    SI1PERAD       00D8
    SI1PERAR       00E1
    SI1PERCD       00D6
    SI1PERCL       00D6
    SI1PERZF       00D7
    SI1PREFX       0004
    SI1PRSEG       00D7 00
    SI1PRSTD       00D3 00000000
    SI1PSTD1       00D7 02
    SI1PSTD2       00D7 01
    SI1PSW         0018
    SI1PSW0        0018
    SI1PSW0B       0018
    SI1PSW0F       0018
    SI1PSW1        0019
    SI1PSW2        001A
    SI1PSW2H       001A
    SI1PSW3        001B
    SI1PSW4        001C
    SI1PSW4B       001C
    SI1PSW4F       001C
    SI1PSW57       001D
    SI1RCP         0060
    SI1RCPBY       0062 10
    SI1RCPB0       0060
    SI1RCPB2       0062
    SI1REPSC       0075
    SI1RPLZN       0075
    SI1RRF         0002 80
    SI1RSCB        0001 40
    SI1SCHI1       00F2 80
    SI1SCST        0077
    SI1SDSC        0000
    SI1SESEG       00D7 02
    SI1SESTD       00D3 00000002
    SI1SIGA        004F 04
    SI1SKAEN       0060 80
    SI1SKAIP       0060 40
    SI1SNORG       0068
    SI1SPTE        00C4
    SI1SSCTL       00D0
    SI1SSCT2       00D1
    SI1SSON        00D0 80
    SI1STATC       0001
    SI1SVCNN       0040 80
    SI1SVCTL       0040
    SI1SVC1C       0040 40
    SI1SVC1N       0041
    SI1SVC2C       0040 20
    SI1SVC2N       0042
    SI1SVC3C       0040 10
    SI1SVC3N       0043
    SI1TCHCL       0070
    SI1TODPF       0054
    SI1VIRSN       0056
    SI1VIRSV       005A
    SI1VIWHN       0057
    SI1VIWHO       0056
    SI1VIWHY       0058
    SI1VR          0003 08
    SI1XA          0003 20
    SI1XCPAL       00E8
    SI1XCPAR       00E0
    SI1XSL         00E5
    SI1XSLIM       0078
    SI1XSO         00E2
    SI12NDVR       0002 20
    SI12NDVV       0002 40
    SI1370         0003 10
    STD2STO        001C SI1PSW4B
    STE2PGM        001C SI1PSW4B
    STE2PTO        001C SI1PSW4B
    STE2STO        001C SI1PSW4B

This information is based on z/VM V6R1.0. Last updated on 18 Feb 2010 at 09:05:15 EDT.
Copyright IBM Corporation, 1990, 2008