NUCON Hexadecimal Field
Displacement Name 2CO 2C8 2DO 2D8 LASTLMOD DC LASTTMOD DC DATIPCMS DC CLKVALMD DC CLS' , CL8'ACCESS' D'O' D'O' Field Description, Contents, !eaning Last module LOADMOD into .ain storage
Last module LOIDMOD into transient area
Date (am/dd/yy) at last IPL C!S Tille (STCK fora) at midnight (0000 hours) !!,ng !!!!! MACDIRC DC
MACLIBL DC TXLIBSV DC ftACLBSV DC TOTLIBS DC TXTDIRC DC TXTLIBS DC 8A (0) Pointers 2EO 300 34S 34C 350 354
358 3AO 3AO 3A4
3A8
3AC 3BO 3B4
3B8
3BC 440 444
446 44S 44C
44E 450 451
452
454
458
45C 460 464
-------iddress of macro library directories 1SF'-1' F'O' F'O' F'O' A (0) 18F'-1' DUftPLIST DS OD GRS015 DC A (GPRLOG) LOC0116 DC A (LOWSAVE) FIRSTDMP DC A(O) LASTDftP DC A(O) FRS06 DC A (FPRLOG) DftPTIT DC A (DMPTITLE)
DC 4X 'FF' DMPTITLE DC CL132" GLBLTIBL DC F'O' DC H'O' SVCS202 SVC 202 ERRS202 DC A(*+4)
BR 14
DC H' 0' !!.!!§ BATRUN EQU BATLOAD EQU BATBOEI 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 BATFLIGS --X'80'---- 1'40' X'20' X'10' X'OS' X'04' X'02' X'01' 1X'00' in BATPLAG2 --X'80'---- X'40' X'20' X'10' X'OS' X'04' X'02' X'01' 2X'00' A*2 ABATPROC DC A(O) ABATABBD DC A(O) ABATLlftT DC A(O) AUSERST DC A(O) DC 2F'0' Current macro library nalles
Library save area for TXTLIES Library save area for MICLIES Total global chains (in bytes)
Address of TEXT library directories
Current TEXT library nalles DEEUG DUMP PLIST Address of GPR save area
Address of low storage save area
Address of first location to dumF Address of last location to dU.F Address of PPR save area
Address of duap title line
Reserved for IBft use DUllp title line
Reserved for IBM use Used for alignment COli. on SVC for reentrant ccde User will fill if necessary
Return to caller
Reserved for IBft use
Batch flags
Batch monitor running
Loading batch processor Suppress user job execution
Batch reader error
CP co •• and executing User job executing MOVEPILE 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 co.mand 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/310 Data Areas and Control Block Logic

Hexadecimal Field
Displacement Name ------------ !!Q'§ 46C DOSLBSV DC 470 DOSDIRC DC 490 DOSLIBL DC
4D8 DOSFLAGS DC ll.!!§ DOSMODE EQU DOSSVC EQU DOSVSAM EQU DOSCOMP EQU DOSPIO EQU VSMINSTL EQU 4D9 DOSRC DC
4DA DC
4DC ALTASAVE DC 4EO ABGCOM DC
4E4 ASISCOM DC
4E8 ADOSDCSS DC
4EC SVC 12SAV DC 4FO DOSFIRST DC 4FO DOSNUM DC
4F6 DOSKPART DS 4F8 APPSAVE DC
4FC DOSTRANS DC 500 MAINLIST DC 504 MAINSTRT DC 508 FREELIST DC SOC FREENUM DC 510 MAINBIGH DC
514 FREELOWE DC
518 FREELOWR DC
51C FREEUPPR DC 520 ANUCEND DC
524 AUSRAREA DC
528 CURRSAVE DC
52C CODE203 DC
52E FRERESPG DS 530 ADMSFRT DC
534 VCADTLKP DS 538 VCADTNXT DC
53C VCADTLKW DC UQ 540 CURRIOOP DC
544 PENDREAD DC
548 PEND WRIT DC
54C FSTFINRD DC 550 LSTFINRD DC
554 AINTRTBL DC
558 AOUTRTBL DC
55C NUMFINRD DC
SSE NUftPNDiR DC Pointers ---Fio'- 8A (0) 18F '-1 • X'OO' 1*3 in DOSFLAGS --X'80'---- X'40' X'20' X'10' X'08' X'-04' X'OO' !*4 2X' 00' V (LTASAVE) V (BGCOM) V (SISCOM) A (0) F'O' A (0) B'O' B'O' V (PPSAVE) A (0) Pointers --i(O)"-- V (USERAREA) V (NUCEND) F'1' V (USERAREA) V (NUCEND) V (TRANSAR) A (0) V (NUCEND) V (INITSUB) A (0) BiOi B'2' V (DMSFRT) A (DMSLAD) A (DMSLADN) A (DMSLADW) Pointers ---1(0)"- A (0) A (CONSTACK) A (0) A (0) A (0) A (0) H'O' B'O' Field Description, Contents, Meaning Library save area for DOSLIES Address of ros library directories
Current ros library names DOS simulation flags DOS environment flag DOS SVC simulation flag DOS iSAft running flag DOS compiler running flag DOS printer indicator NUCCN VSAft installation flag to relocate DCSS table DOS return code to user
Reserved for IBM use
Address of LTA save area
Address of partition communication region
Address of system communication region
Address of LOS DCSS Work area for SiC 12
Address of first DOSCB in chain Number of DOSCBs in chain Number of K-bytes in DOS partition
Address of problem program save area
Address of ros transient area
Address of first block of user free storage
Address of the start of user free storage
Address of first block of system storage
Number of blocks of system storage
High extend of user free storage Low extend of systeM free storage Lower limit of system free storage Upper limit of system free storage
Address of end of nucleus storage area
Address of teginning of user area
Address of current save area
Code number of last SiC 203 Amount of user storage to reserve
for CftS free storage (pages: >=2) DftSFRE work area
EALR equivalent of ADTLKP
EALR equivalent of ADTNXT EALR equivalent of ADTLKW Address of current I/O buffer
Address of pending read operation
Address of pending write oFeration Address of finished read buffer
Address of last finished read buffer
Address of user input translate table
Address of user output translate table NUBber of finished read buffers
Number of pending write operaticns
Section 2. CMS Lata Areas and Control Blocks 213