BGCOM BGCOM simulates the DOS/VS Partition Communicaticn Region (BGCOM).. The AEGCOM field in NUCON points to the BGCOM block. 0 JOBDATE 8 PPBEG EOSSP 10 I UPSI 18 COMNAME 20 PPEND HIPHAS 28 HIPROG LAELEN PIK 30 EOCADR A*1 A*2 A*3 I A*4
38 A*5 A*6 A*7 A*8 DALC FCCLPT 40 PUBPT FAVPT JIEFT TEBPT 48 FICLPT NICLPT LUEFT A*9 50 MMDD YYDtD 58 LIOCSCOM PIBPT CHKF'IID JCBZCN 60 DIBPT 1//////////////1 PCP'IR ITPTR 68 OCPT 70 SYSPAR 78 TODCOM 80 IJLQTTAD
88 COMEX 90 98
Hexadecimal Field
Displacement Name
o
8
A C 17
18 20 JOB DATE DC PPBEG DC EOSSP DC DC UPSI DC COIBUME DC PPEND DC PWTIMS 1////////////1 LTK
JAPART PIE2PTR PDTAEB BGCCMPT A*10 A*11
A*12 I A*131 A*14 PROCNAM (cont. from 8F) A*15 POVNAM A*16 C'OO/OO/OO' S (0) S (0) 11X'00' X'OO' CL8'CMS/DOS' A (0) Field Description, Contents, Meaning Job date
Supervisor end
End ef storage protection User scratch area UPSI 1:yte
Job name
Highest storage address of partition
Section 2. CMS rata Areas and Contrel Blocks 147

EGCOM Hexadecimal Field tisplacement Name 24
28
2C
2E 30 34
35
36
37
38
39
3A
3B
3C
3E 40 42
44
46
48
4A
4C
4E
4F
4F
53
58
5A
5C
5E 60 62
64
66
68
6A
6C
6E 70 74
78
7C
7E 80 84
86
87
88
8C
8D
8E
8F
97
98 9P HIP HAS DC HIPROG DC
LABLEN DC PIK DC EOCADR DC CON PIG DC
LTACT DC SOB1 DC SOB2 DC JCSW1 DC JCSW2 DC JCSW3 DC JCSW4 DC
DALC DC FOCLPT DC PUBPT DC PAiPT DC
JIBPT DC
TEBPT DC PICLPT DC
NICLPT DC LUBPT DC SYSLINE DC SYSDATE DS MMDD DC YYDDD DC LIOCSCOM DC PIBPT DC
CHKPTID DC JQBZONDC DIBPT DC PCPTR ITPTR OCPT PWTIMS LTK SYSPAR JAPART TODCOM PIB2PTR PDTABB
IJLQTTAD BGCOMPT OPTNBYTE RMSROPEN COMEX STDOPT TEMOPT DISKCONF PROCNAM PSWTCH POiNAM INSIZE DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC r:C r:C DC
DC
A (0) A (0) H'O' 1'0010' A (0) B'11101000' A*1 B'00010000' A*2 B'11000100' A*3 B'11011010' A*4 B'11010000' A*5 B'OOOOOOOO' A*6 B'11000100' 1*7 B'10000000' 1*8 H'O' S (0) S (0) S (0) S (0) S (0) S (0) S (0) S (0) AL1(56) A*9 OCL9 XL4'00' XL5'OO' 2X'00' S (0) H'O' S (0) S (0) H'O' S (0) S (0) S (0) X'OOOC' H'O' S (0) P'O' P'O' A (0) S (0) S (0) A (0) S (0) X'OO' A*10 B'00000000'A*11 A (0) B'01000000'1*12 B'01000000'1*13 X'OO' 1*14 CL8' , X'O' A*15
CL 7' , X'O' A*16
Field Description, Contents, Meaning End address of last phase loaded
End address of longest phase leaded
Length of problem program label area
Program interrupt key
End of virtual storage address
Machine configuraticn byte System configuration byte Standard language translator options
Standard supervisor options
Job control byte
Linkage control byte
Nonstandard language translator options
Job duration indicator byte
Disk address of volume latel Address of POCL Address of PUB Address of PAVP Address of JIB
Address of TEB
Address of FICL
Address of NICL
Address of LUB SYSLST line count System date MfttI or YYIID portion of date LICCS communication bytes
Address of PIB Last checkpoint number Jol:z.one in minutes Eackground DIB pointer
Reserved fer lEft use PC option table
IT option table OC option table
Key of program with IT support Reserved for lEft use
Logical transient key
Address of SYSFARft Address of job accounting table
Address of TOD co.munications area
Address of PIB extension
Address of ftICR DTP table
Address of vector table
Address of background COMREG Option indicator ryte System configuration byte 2
Pointer to SYSCOM option table
Standard jeb control optien byte Temporary job control optien byte
Disk configuration tyte
Procedure name
Interface tyte for catalog procedure Save area for statement name
81-tyte SYSIN indicator
148 IEM VM/310 Data Areas and Control Block Logic