NUCON Eexadecimal Field
Displacement Name Field Description, Contents, Meaning SE9
SEA
SEB
SEC SFO SF4
SF8
SFC 600 600 604 608 60C 610 614
618
61C 620 624
628
62C 630 634
638
63C 640 644
648
64C 650 654
658
6SC 660 664
668
66C 670 674
678
67C 680 684
688 SUBFLAG DC 1X'00' A*16 CMS subset flag byte !!J:!§ SUBREJ EQU SUBRTN EQU SUBINIT EQU SUBACT EQU in SUBFLAG --X'08'--- X'04' X'02' X'01' Subset command reject Subset return Subset initialization
Subset active DCSSFLAG DC X'OO' A*17 DCSS indicators !!J:!§ DCSSAVAL EQU in DCSSFLAG --X'80'---- DCSSLDED EQU DCSSCPNV EQU DCSSLDSD EQU DCSSVTNA EQU DCSSVTLD EQU DCSSOVLP EQU DCSSJLNS EQU X'40' X'20' X'10' X'08' X'04' X'02' X'01' DC ASYSNAMS DC ACMSSEG DC ADMSLIO DC VCFSTLKP DC VCFSTLKW DC X'OO' V (SYSNAMES) F'O' V (DMSLIO) V (DMSLFS) V (DMSLFSW) !Yfley§ SYSREF AFVS AOPSECT ADEVTAB AFSTLKP AGETCLK AFSTLKi APIE AIADT AUSER ARDTK ASCANN ASSTAT ATABEND ASUBSECT AOSMODL AWRTK ASTRINIT IADT
AFREE
AFRET ADMSPIOC APGMSECT AIOSECT ADMPEXEC ADIOSECT AABNSVC ADMSERL ADMSCRD ADMSFREB ASVCSECT AADTLKP AUPUFD ASTATEXT AOSRET ACMSRET Address Table -j)s----on---- DC V (FVS) DC V (OPSECT) DC V (DEVTAB) DC V (FSTLKP) DC V(DMSINM) DC V (FSTLKW) DC V (PIE) DC V (IADT)
DC V (USERSECT) DC V (D DC V (D MSSCNN) DC A (0) DC V (TABEND)
DC V (SUBSECT) DC A (0) DC V (D MSDIOW) DC V (D MSSTGST) DC V (ADTSECT) DC V (FREE)
DC V (FRET)
DC V (D MSPIOCC) DC V (PG MSECT) DC V (IOSECT) DC V DC V (DIOSECT) DC DC V (DMSERL) DC V (DMSCRD)
DC V (DMSFREB)
DC V (SVCSECT) DC V (ADTLKP)
DC V (DMSAUDUP) DC A (0) DC V (OSRET) DC V (CMSRET) CMSS!G segment exists CMSS!G loaded CP or invalid command issued
Loading S-disk DMSSVT not available DMSSVT is loaded
virtual machine storage overlaid CMSS!G just loaded nonshared
Reserved for IBM use
Address of CMS saved segment
EALR equivalent of FSTLKP EALR equivalent of FSTLKi 216 IBM VM/370 Data Areas and Control Block Logic
by ncss

Hexadecimal
Displacement
------------
68C 690 694
698
69C 6AO 6A4
6A8
6AC
6AE 6BO 6B4 6BS 6BC 6CO 6C4 6CS 6CC 6DO 6D4 6DS 6DC 6EO 6E4 6ES 6EC 6FO 6F4 6FS 6FC 700 700 70S 710 714
715
716 .,,,n Iii V 7AO 840 840 84S A60 A60 BAO BEO C20 C60 C62
C64
Field Nalle ASCANO DC V (DMSSCNO) AEXEC DC V (D MSEXC) 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 (D MSLAFFE) AACTFRET DC V (D MSLAFFT) AADTNXT DC V (ADTNXT) ATRKLKP DC V (DMSTRK) ATRKLKPX DC V (DMSTRKX) AQQTRK DC V (DMSTQQ) AQQTRKX DC V (DMSTQQX) AERASE DC V (DMSERS) ATYPSRCH DC V (TYPSRCH) AUPDISK DC V (DMSAUD) AKILLEI DC V (KILLEX) 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) Ig!:lIi1!§l Buffers DS----OD CONCCWS cell CCW CONINBLK DC
DC
DC CONINBUF DS DS CMNDLINE DS DS DC CMNDLIST DS DS CONSTACK DS !!:g!§ FREESAVE DS BALRSAVE DS WAITSAVE DS PCTVSAM DC DS DS O,O,X!60!,0 3,0,X'20',1 A (0) XL1'OA' AL1(134)
CL134 n ..... VlJ CL160 OD CLS'EXEC' CLS36 OD CL320 16F
16F
16F H'SO' 1H
1F
Field Description, Contents, Meaning --------------------------------------
Console read and write CCii NOP to get CE and DE together 50 percent for CMS/VSAM use
Reserved for IBM use
Reserved for IBM use NUCCN Section 2. CMS rata Areas and Control Blocks 217