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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure UZPAG PREFIX STORAGE AREA - MACHINE USAGE
0000 0 Dbl-Word 8 UZPIPSW (0) IPL START PSW
0000 0 Signed 4 UZPIPSW0 (0)
0000 0 Bitstring 1 UZPIP1B0
0001 1 Bitstring 1 UZPIP1B1 EXTENDED MODE
0002 2 Signed 2 UZPIP1H1 IPL DEVICE ADDRESS
0004 4 Signed 4 UZPIPSW1 (ALSO RESTART NEW PSW)
0008 8 Dbl-Word 8 UZPICCW1 IPL CCW, FIRST (ALSO RESTART OLD
PSW)
0010 16 Dbl-Word 8 UZPICCW2 IPL CCW, SECOND
0018 24 Dbl-Word 8 UZPEXTOP EXTERNAL OLD PSW
0020 32 Dbl-Word 8 UZPSVCOP SVC OLD PSW
0028 40 Dbl-Word 8 UZPPRGOP PROGRAM OLD PSW
0030 48 Dbl-Word 8 UZPMCHOP MACHINE-CHECK OLD PSW
0038 56 Dbl-Word 8 UZPIOOP INPUT/OUTPUT OLD PSW
0040 64 Dbl-Word 8 UZPCSW (0) CHANNEL STATUS WORD
0040 64 Signed 4 UZPCSWF0 KEY AND ADDRESS OF FULL CSW
0044 68 Signed 4 UZPCSWF1 (0) 2ND FULLWORD OF CSW
0044 68 Signed 2 UZPCSWH (0) HALFWORD CSW
0044 68 Bitstring 1 UZPCSWB4 5TH BYTE OF CSW
0045 69 Bitstring 1 UZPCSWB5 6TH BYTE OF CSW
0046 70 Bitstring 1 UZPCSWB6 COUNT FIELD OF FULL CSW
0047 71 Bitstring 1 UZPCSWB7 COUNT FIELD OF FULL CSW
0048 72 Signed 4 UZPCAW CHANNEL ADDRESS WORD
004C 76 Signed 4 * NOT REFERENCED
0050 80 Signed 4 UZPTIMER INTERVAL TIMER
0054 84 Signed 4 UZPETTHD EXT. FACIL. TRACE TABLE HDR
0058 88 Dbl-Word 8 UZPEXTNP EXTERNAL NEW PSW
0060 96 Dbl-Word 8 UZPSVCNP SVC NEW PSW
0068 104 Dbl-Word 8 UZPPRGNP PROGRAM NEW PSW
0070 112 Dbl-Word 8 UZPMCHNP MACHINE-CHECK NEW PSW
0078 120 Dbl-Word 8 UZPIONP INPUT/OUTPUT NEW PSW
0080 128 Signed 4 UZPEXMSF MSF DATA BLOCK ADDR-CLASS 21 EXT
0084 132 Signed 4 UZPEXTCD (0) EXTERNAL INTERRUPT CODE,FULLWORD
0084 132 Signed 2 UZPEXTCA EXTERNAL IRPT. CPU ADDRESS
0086 134 Signed 2 UZPEXINT EXTERNAL INTERRUPT CODE,HALFWORD
0088 136 Signed 2 UZPSVCIL SVC INSTRUCTION LENGTH CODE
008A 138 Signed 2 UZPSVCNT SVC INTERRUPT CODE
008C 140 Signed 4 UZPPRGCD (0) PROGRAM ILC AND INTERRUPT CODE
008C 140 Signed 2 UZPPRGIL PROGRAM INSTRUCTION LENGTH CODE
008E 142 Signed 2 UZPRGINT PROGRAM INTERRUPT CODE
0090 144 Signed 4 UZPTRXAD (0) TRANSLATION EXCEPTION ADDRESS
0090 144 Bitstring 1 UZPSSCTL Space-switch event control
1... .... UZPSSON X'80' UZPSSON Space-switch
control bit
0091 145 Bitstring 1 UZPSSCT2 When a space switch program
interrupt occurs, the space-
switch event control bit is saved
in the high order bit of
UZPSSCTL. The remaining bits of
UZPSSCTL and UZPSSCT2 are set to
0.
0092 146 Signed 2 UZPOPASN Old PASN - set for space-switch
event program interrupt.
0090 144 Signed 4 UZPFPARM (0) Data exception information
0090 144 Bitstring 3 *
0093 147 Bitstring 1 UZPDXCOD Data exception code
0094 148 Signed 2 UZPMNCLS MONITOR CLASS
0096 150 Signed 2 UZPPERCD PROGRAM EVENT RECORDER(PER) CODE
0098 152 Dbl-Word 8 UZPGPERA (0) PER Address for z/Arch PSA
0098 152 Signed 4 UZPPERAD PER ADDRESS
009C 156 Signed 4 UZPMONID MONITOR CODE
00A0 160 Bitstring 1 UZPXCPAR 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 Maximum number of users
allowed on the system NOTES :
PITS 2U06341 is lowering this
value from 100,000 to 99,999
because there are many messages
in the system which only allow 5
digits for the number of users.
See the PITS for all of the
details. DO NOT increase MAXUDFLT
without re-doing PITS 2U06341.
UZPXCPAR MAXUDFLT 99999 MAXUDFLT Default maximum
number of logged on users allowed
00A1 161 Bitstring 1 UZPPERAR PER ACCESS IDENTIFICATION
00A2 162 Bitstring 1 UZPOPRID Operand access identification
00A3 163 Bitstring 1 UZPARCHM Processor architecture mode
.... ...1 UZPAINME X'01' UZPAINME Bit 7: 0 =
ESA/390, 1 = z/Arch Architecture
mode is in the SARCH condition
code
00A4 164 Signed 4 UZPMAPL Control block for Ext. Facility
00A8 168 Signed 4 UZPFALET (0) Used to contain the ALET that
caused a translation exception.
00A8 168 Dbl-Word 8 UZPGTRAD (0) z/Arch: Translation-exception ID
00A8 168 Signed 4 UZPGTRAH Trans-execpt ID high half
00AC 172 Signed 4 UZPGTRAL Trans-execpt ID low half
00B0 176 Dbl-Word 8 UZPGMNCD (0) z/Arch: monitor code
00B0 176 Signed 4 UZPECSWL LIMITED CHANNEL LOGOUT (ECSW)
00B4 180 Signed 4 * z/Arch: low ord word monitor code
00B8 184 Signed 4 UZPIOSID (0) 370/XA I/O INTERRUPT SUBSYS ID
00B8 184 Bitstring 1 * 370: UNUSED, 370/XA: ZERO
00B9 185 Bitstring 1 UZPIOQCT 370: QUEUED I/O COUNT, 370/XA:01
00BA 186 Signed 2 UZPIODEV 370: DEVICE ADDRESS, 370/XA:
SUBCHANNEL NUMBER
00BC 188 Signed 4 UZPINTPM 370/XA I/O INTERRUPTION PARM
00C0 192 Signed 4 UZPHIIDW Host Interruption Identification
Word
00C4 196 Signed 4 * Reserved for IBM use
00C8 200 Signed 4 UZPSTFL (0) STFL Facility List
00C8 200 Bitstring 1 UZPSTFL0 Byte 0, bits 0-7 of STFL List
1... .... STFL0N3A X'80' STFL0N3A "N3" instructions
available
.1.. .... STFL0MEA X'40' STFL0MEA zArch available
..1. .... STFL0MEE X'20' STFL0MEE zArch enabled
...1 .... STFL0IDT X'10' STFL0IDT IDTE is installed
.... 1... STFL0ICS X'08' STFL0ICS IDTE performs the
Invalidation-and- Clearing
operation selectively when STE(s)
are invalidated. IDTE also
performs the Clearing-by-ASCE
function selectively. In both
cases, "selectively" means the
TLB purging is limited to those
specific entries required by
architecture. If this bit is off,
IDTE simply purges all TLBs. If
this bit is on, STFL0IDT is also
on.
.... .1.. STFL0ICR X'04' STFL0ICR IDTE performs the
Invalidation-and- Clearing
operation selectively when RTE(s)
are invalidated. "Selectively"
means the TLB purging is limited
to those specific entries
required by architecture. If this
bit is off, IDTE
Invalidation-and-Clearing of
RTE(s) simply purges all TLBs. If
this bit is on, STFL0IDT and
STFL0ICS are also on.
.... ..1. STFL0ALR X'02' STFL0ALR ASN-and-LX-reuse
facility installed
.... ...1 STFL0FLE X'01' STFL0FLE STFLE facility
installed
00C9 201 Bitstring 1 UZPSTFL1 Byte 1, bits 8-15 of STFL List
00CA 202 Bitstring 1 UZPSTFL2 Byte 2, bits 16-23 of STFL List
00CB 203 Bitstring 1 UZPSTFL3 Byte 3, bits 24-31 of STFL List
00CC 204 Signed 4 * Reserved for IBM use
00D0 208 Signed 4 * Reserved for IBM use
00D4 212 Signed 4 UZPFPXSA Extended-save-area address
00D8 216 Dbl-Word 8 UZPMCPUT CPU TIMER LOGOUT
00E0 224 Dbl-Word 8 UZPCKCMP TOD COMPARATOR LOGOUT ON MACHINE
00E8 232 Dbl-Word 8 UZPMCIC MACHINE-CHECK INTERRUPT CODE
111. 1... UZPMCI01 00002 UZPMCIC,2 OVLY FOR FIRST
TWO BYTES OF MCIC
00F0 240 Signed 4 UZPMCHCW MACHINE CHECK CHAN. REPORT WORD
00F4 244 Signed 4 UZPEDMGC EXTERNAL DAMAGE CODE
00F8 248 Dbl-Word 8 UZPGMCFS (0) z/Arch: machine chk failing addr
00F8 248 Signed 4 UZPMCHFS MACHINE CHECK FAILING STOR. ADDR
00FC 252 Signed 4 UZPMCHRC MACHINE CHECK REGION CODE
0100 256 Bitstring 96 UZPFCLOG (0) GUEST FULL CHANNEL LOGOUT
0100 256 Bitstring 96 UZPFXLOG (0) MACHINE CHECK FIXED LOGOUT AREA
0100 256 Dbl-Word 8 UZPMCHFA (0) MACHINE-CHECK FAILING-STORAGE
ASIT
0100 256 Dbl-Word 8 UZPSTPSW STORE STATUS PSW LOGOUT AREA
0108 264 Signed 4 UZPSTPFX STORE STATUS PREFIX LOGOOUT AREA
010C 268 Signed 4 UZPSTMDL STORE STATUS MODEL DEPENDENT
0110 272 Dbl-Word 8 UZPBEAR Breaking-Event Address
0118 280 Dbl-Word 8 UZPFXLGM REMAINDER OF FIXED LOGOUT AREA
0120 288 Signed 4 UZPARLOG (16) ACCESS REGISTER LOGOUT AREA
0160 352 Dbl-Word 8 UZPFPRLG (4) FLOATING POINT REG. LOGOUT AREA
0180 384 Signed 4 UZPGPRLG (16) GENERAL REGISTER LOGOUT AREA
01C0 448 Signed 4 UZPCRLOG (16) CONTROL REGISTER LOGOUT AREA
00000200 UZPLAP *-UZPAG LIMIT OF LOW ADDRESS
PROTECTION
z/Arch Old and New PSW locations. Note that they are below
the 512 byte line and therefore protected by LAP (UZPLAP).
0120 288 Bitstring 16 UZPGRSOP z/Arch Restart Old PSW
0130 304 Bitstring 16 UZPGEXOP z/Arch External Old PSW
0140 320 Bitstring 16 UZPGSVOP z/Arch SVC Old PSW
0150 336 Bitstring 16 UZPGPROP z/Arch Program Old PSW
0160 352 Bitstring 16 UZPGMCOP z/Arch Machine Check Old PSW
0170 368 Bitstring 16 UZPGIOOP z/Arch I/O Old PSW
0180 384 Bitstring 32 * Reserved for Hardware use
01A0 416 Bitstring 16 UZPGRSNP z/Arch Restart New PSW
01B0 432 Bitstring 16 UZPGEXNP z/Arch External New PSW
01C0 448 Bitstring 16 UZPGSVNP z/Arch SVC New PSW
01D0 464 Bitstring 16 UZPGPRNP z/Arch Program New PSW
01E0 480 Bitstring 16 UZPGMCNP z/Arch Machine Check New PSW
01F0 496 Bitstring 16 UZPGIONP z/Arch I/O New PSW
The following fields are S/370 fields which were in the
same place that the translation exception ID field is in
a z/Arch mode guest.
00A8 168 Signed 4 UZPCHIDC CHANNEL IDENTIFIER FROM 'STIDC'
00AC 172 Signed 4 UZPIOELA I/O EXTENDED LOGOUT AREA POINTER
FIELDS ABOVE ADDRESS 512 ARE NOT
SPECIFIED BY PROCESSOR
ARCHITECTURE.
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