Hexadecimal Field
Displacement Name
o
8 10 o
8 10 14
18 20 28 30 38 40 48
4C 50 54
58 60 68 70 78 80 80 90 94
96
98
9C AO CO 160 180 1CO 200 220 260 268
26A
26C 270 274 280 280 288 290 294
298
29C 2AO 2A8 2BO 2B8 Usaae IPLPSW DS IPLCCW1 DS IPLCCW2 DS ORG RSTNPSW DS RSTOPSW DS ACMSCVT DS ASYSREF DS EXTOPSW DS SVCOPSW DS PGMOPSW DS MCKOPSW DS IOOPSW DS CSW DS CAW DS NUCRSV1 DS TIMER DS NUCRSV2 DS EXTNPSW DS SVCNPSW DS PGMNPSW DS MCKNPSW DS IONPSW DS CPULOG DS ORG NUCRSV3 DS NUCRSV4 DS MONCLASS DS PERCODE DS PERADDR DS MONCODE DS NUCRSV5 DS LOWSAVE DS FPRLOG DS GPRLOG DS ECRLOG DS SYSTEMID DS INSTA1ID DS SYSNAME DS IPLADDR DS SYSADDR DS DEVICE DS NUCRSV6 DS FEIBM DC
DIAGTIME DS ORG CURRDATE DS CURRTIME DS CURRVIRT DS CURRCPUT DS LASTVIRT DS LASTCPUT DS LASTCMND DC PREVCMND DC LASTEXEC DC PREVEXEC DC
Page of SY20-0884-3 As Updated Aug. 1, 1979 by TNL SN25-0497 NUCON 1D
1D
1D IPLPSW 1D
1D
1F
1F
1D
1D
1D
1D
1D
1D
1F
1F
1F
1F
1D
1D 1D 1D
1D
48D CPULOG 2D
1F
1H
1H
1F
1F
4D XL160 4D
16F
16F
CL32
CL64
CL8
1H
1H
1F
1F
CL 12' 5749D MSOO CL24
DIAGTIME
e18 C1S 1F
1F
1F
1F
C18' , eL8' , CL8' , CL8' , Field Description, Contents, Meaning
Initial program load of PSi Initial program load of CCi1 Initial program load of CCi2 PSW restart new PSW PSi restart old PSW Address of simulated OS CVT Address of nucleus address table
External old PSW Supervisor call old PSi Program old PSi Machine-check old PSW Input/output old PSW Channel status word
Channel address word
Reserved for IBM use
Interval timer
Reserved for IBM use
External new PSW Supervisor call new PSW Program new PSi Machine-check new PSW Input/output new PSW Processor logout area
Reserved for IBM use
Reserved for IBM use
Monitor call class number
Program event recorder code
Program event recorder address MONITOR CALL code
Reserved for IBM use Save area for first 160 bytes of storage
Floating-point register logout area
General-purpose register logout area
Extended control register logout area System name and date
Installation identification
Name of saved system loaded (via IPL)
Address of device loaded (via IPL)
Address of system disk
Name of device causing last I/O interrupt
Reserved for IBM use
Component identification --referenced
by IPCS extension program product
Buffer for DIAGNOSE timer
Current date -mm/dd/yy
Current time - hh.mm.ss
Current elapsed virtual time used
Current elapsed processor time used
Previous elapsed virtual time used
Previous elapsed processor time used
Last command issued
Next to last command
Last EXEC procedure
Next to last EXEC procedure Section 2. CMS Data Areas and Control Blocks 211

NUCON Hexadecimal Field
Displacement Name 2CO 2CS 2DO 2DS LASTLMOD DC LASTTMOD DC DATIPCMS DC CLKVALMD DC
Aug. 1, 1979
CLa' , CLS'ACCESS' D'O' D'O' Field Description, Contents, Meaning
Last module LOADMOD into main storage
Last module LOADMOD into transient area
Date (mm/dd/yy) at last IPL CMS Time (STCK form) at midnight (0000 hours) Text Pointers 2EO MACDIRC DC 8A(0) of macro library directories 300 MACLIBL DC 1SF'-1' Current macro library names 34S TXLIBSV DC F'O' Library save area for TXTLIBS 34C MACLBSV DC F'O' Library save area for MACLIBS 350 TOTLIBS DC F'O' Total global chains (in bytes)
354 TXTDIRC DC A(O) Address of TEXT library directories 35S TXTLIBS DC 1SF'-1' Current TEXT library names 3AO 3AO 3A4 3AS 3AC 3BO 3B4 3BS 3BC 440 444
446 44S 44C
44E DUMPLIST DS GRS015 DC LOC0176 DC FIRSTDMP DC LASTDMP DC FRS06 DC DMPTIT DC
DC
DMPTITLE DC
GLBLTABL DC
DC SVC$202 SVC ERR$202 DC
BR
DC OD A (GPRLOG) A (LOWSAVE) A (0) A (0) A (FPRLOG) A (DMPTITLE) 4X'FF' CL 13 2' , F'O' H'O' 202 A (*+4)
14 H'O' Ba,ich Infor,!!!ation DEBUG DUMP PLIST Address of GPR save area
Address of low storage save area
Address of first location to dump
Address of last location to dump
Address of FPR save area
Address of dump title line
Reserved for IBM use
Dump title line
Reserved for IBM use Used for alignment
Common SVC for reentrant code User will fill if necessary
Return to caller
Reserved for IBM use 450 BATFLAGS DC 1X'00' A*1 Batch flags
451
452
454 45S 45C 460 464 Bi,i,§ defined BATRUN EQU BATLOAD EQU BATNOEX EQU BATRERR EQU BATCPEX EQU BATUSEX EQU BATMOVE EQU BATTERM EQU BATFLAG2 DC BATXLIM EQU BATXCPU EQU BATXPRT EQU BATXPUN EQU BATDCMS EQU BATIPLSS EQU BATSTOP EQU BATSYSAB EQU DC
in BAT FLAGS --X'80'-- X'40' X'20' X'10' X'OS' X'04' X'02' X'01' 1X'00' in BATFLAG2 --X'80-'-- X'40' X'20' X' 10' X'OS' X'04' X'02' X'01' 2X'00' A*2 Ba,ich En!£! Points ABATPROC DC A(O) ABATABND DC A(O) ABATLIMT DC A(O) AUSERST DC A(O) DC 2F'0' Batch monitor running
Loading batch processor
Suppress user job execution
Batch reader error CP command executing User job executing MOVEFILE executing from terminal User job being flushed More batch flags User job limit exceeded
Processor time exceeded
No. of printed lines exceeded
No. of punched cards exceeded
Disabled CMS command called
Batch loading (via IPL) saved system
Batch stopping after current job
System abnormal termination
in process
Reserved for IBM use Main entry User job abend entry User job limits table Virtual machine restart entry point
Reserved for IBM use
212 IBM VM/370 Data Areas and Control Block Logic