NUCON 700 CONCCWS 708 710 CONINELK 718 CONINEUF 7AO CftNDLINE 848 CftNDLIST A60 CONSTICK BAO FREES AVE BEO BALRSAVE C20 WAITSAVE ----------------------------------------------------1 C60 PCTVSlft 1//////////////1///////////////////////////1 -------1 C68 ADIKQLAB NDIKQLAB I --------------------------------------------------1 C70 ARURTBL ADftSVIB I ---------------------------------------------------1
C78 IVIPWORK A*18 1////////////////////1 ---------------------------------------------------1 C80 AVSAftSYS AAI!SSYS I ---------------------------------------------------1
C88 AVSREOJ AVSRWORK 1 ---------------------------------------------------1 C90 ACBLIST 1///////////////////////////1
---------------------------------------------------1
C98 ////////////////////////////1///////////////////////////1 I 210 IBM VM/370 Data Areas and Centrol Block Logic

NUCCN Hexadecimal Field £isplacement Name Field Description, Contents, Meaning 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 IPLPSW DS 1D Initial program load of PSi Initial program load of CCi1 Initial program load of CCi2 IPLCCW1 DS 1D IPLCCi2 DS iD 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 PGMNPSi DS MCKNPSi DS IONPSW DS CPULOG DS ORG NUCRSV3 DS NUCRSV4 DS MONCLASS DS PERCODE PERADDR MONCODE NUCRSV5 LOWSAVE FPRLOG DS DS DS DS DS DS GPRLOG DS ECRLOG DS .§I.§te.! SYSTEMID DS INSTALID 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 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 PSi restart new PSi PSi restart old PSi Address of simulated as CVT Address of nucleus address table
External old PSi Supervisor call old PSW Program old PSi Machine-Gheck old PSi Input/output old PSi Channel status word Channel address word
Reserved for IBM use
Interval timer
Reserved for IBM use
External new PSi Supervisor call new PSi Program new PSi Machine-check new PSi Input/output new PSi Processor logout area
Reserved for IBM use
Reserved for IBM use Monitor call class number Progra: event recorder code Program event recorder address MONliOR CALL code
Reserved for IBM use Save area for first 160 bytes of storage
Floating-point register logout area General-purFcse register lcgcut area
Extended control register logout area CL32 System name and date CL64 Installation identification CL8 Name of saved system loaded (via IPL) 1H Address of device loaded (via IFL) 1H Address of system disk
1F Name of device causing last I/O interrupt
1F Reserved for IBM use CL12'FEIBM154067' FE service number CL24 Euffer for tIAGNOSE timer DIAGTIME CL8 CL8 1F
1F
1F
1F CL8' • CL8' • CL8' • CL8' • Current date -mm/dd/yy Current time -hh.mm.ss Current elaFsed 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 tata Areas and Control Blocks 211