Hexadecimal
Displacement
------------
68C 690 694
698
69C 6AO 6A4
6A8
6AC
6AE 6BO 6B4
6B8
6BC 6CO 6C4
6C8
6CC 6DO 6D4
6D8
6DC 6EO 6E4
6E8
6EC 6FO 6F4
6F8
6FC 700 700 708 710 714
715
716 7AO 7AO 840 840 848 A60 A60 BAO BEO C20 C60 C60 C62
C64
Aug. 1, 1979
Field
Name Field Description, Contents, Meaning
-------------------------------------- ASCANO DC V (DMSSCNO) AEXEC DC V (DMSEXC) ASTART DC V (DMSLDRA) AADTLKW DC V (ADTLKW) AUSABRV DC V (USABRV) AEXTSECT DC V (EXTSECT) ASCBPTR DC V (SCBPTR) ADMSROS DC A (0) LDMSROS DC H'O' CDMSROS DC H'O' AACTLKP DC V (DMSLAF) AACTNXT DC V (DMSLAFNX) AACTFREE DC v (DMSLAFFE) AACTFRET DC V (DMSLAFFT) AADTNXT DC V (ADTNXT) ATRKLKP DC V (DMSTRK) ATRKLKPX DC V (DMSTRKX) AQQTRK DC V {DMSTQQ} AQQTEKX DC V (DMSTQQX) AERASE DC V (DMSERS) ATYPSRCH DC V (TYPSRCH) AUPDISK DC V (DMSAUD) AKILLEX DC V (KI LLEX.) ATFINIS DC V (DMSFNST) ARDBUF DC V (DMSBRD) AWRBUF DC V (DMSBWR) AFINIS DC V (DMSFNS) ASTATE DC V (DMSSTTE) ASTATEW DC V (DMSSTTW) APOINT DC V (POINT) DS OD CONCCWS CCW 0,0,X'60',0 Console read and write CCW CCW 3,0,X'20',1 NOP to get CE and DE together
CONINBLK DC A (0) DC XLl'OA' DC AL1 (134) CONINBUF DS CL134 DS OD CMNDLINE DS CL160 DS OD DC CL8'EXEC' CMNDLIST DS CL536 DS OD CONSTACK DS CL320 FREESAVE DS 16F BALRSAVE DS 16F WAITSAVE DS 16F ang AMSER! Co!!1£ol Word§ DS OD of lIser Stg£age !2 10r Runn1ng PCTVSAM DC DS DS H'50' 1H
1F 50 percent for CMS/VSAM use
Reserved for IBM use
Reserved for IBM use NUCON section 2. CMS Data Areas and Control Blocks 217

Page of SY20-0884-3 As Updated Aug. 1, 1979 by TNL SN25-0497 NUCON Hexadecimal Field
Displacement Name
C68
C6C C70 C74 C78 C7C
C7D C80 C84
C88
C8C C90 C94
C98
C9C CAO ADIKQLAB DC
NDIKQLAB DC ARURTBL DC ADMSVIB DC AVIPWORK DC VSAMFLG 1 DC Bit§ VSAMRUN EQU VSJOBCAT EQU VIPINIT EQU VSAMSERV EQU VIPSOP EQU VIPTCLOS EQU VSAMSOS EQU DS AVSAMSYS DC AAMSSYS DC AVSREOJ DC AVSRWORK DC ACBLIST DC DS AABWSECT DC ADMSZIT DC DS A (X' FFFFFF')
A (0) V (RURTBL) V (DMSVIB) A (0) X'OO' A*18
in VSAMFLG, -X'80-'-- X'40' X'20' X'10' X'08' X'04' X'02' 3X A (0) A (0) V ($$BEOJ4)
A (0) A (0) 1F V (DMSABWSE) V (DMSZITEP) OD Field Description, Contents, Meaning Set to A(IKQLAB) when it is in storage
set to end of IKQLAB when in storage VSAM resource table address
Address of VSAM interface bootstrap
Address of DMSVIP work area VSAM information flag VSAM system loaded VSAM job catalog active DMSVIP has been initialized CMSAMS system loaded (AMSERV OS interface SVC 2 call OS TCLOSE call OS AMSERV running
Reserved for IBM use
running)
Address of VSAM saved system
Address of CMSAMS saved system DMSVSR entry point from VSAM $$BACLOS Address of DMSVSR work area
ACB list built by OPEN/CLOSE Reserved for IBM use
Pointer for the IPCS extension program
prod uct
Pointer for the IPCS extension program
product
218 IBM VM/370 Data Areas and Control Bleck Logic