AEWSECT AEWSECT describes the fields used for saving registers and other data during abend' recovery. V-constants in D!SABN, DMSDEG, D!SFRE, D!SITI, DMSITP, and tMSITS point to the AEWSECT block. ABWSECT is defined in module DMSAEW. 0 40 48 II,.. 90 Hexadecimal Field
tisplacement Name o 40 48 4C ABNREGS DS ABNPSW DS ABNRR DS ABNPAS13 DS ABNRR
16F
D
F
18F !2f 94 ORG ABNPAS13 4C ABNERLST DS 471 ABNREGS AENPSW ABNPAS13 Field Description, Ccntents, Meaning Registers at time of abend PSi at time of abend
Tempcrary save area
Area passed to nucleus rcutines Secticn 2. CMS tata Areas and Control Blocks 139
AI:TSECT ArTSECT describes the attributes of virtual disks (A-G, S, Y, Z) accessed by a virtual
machine via the ACCESS command. Space is allocated for the ADT when DMSNUC is assembled.
In the ADT, certain fields are defined for use ty both CMS and OS. Fer example, ADTBECT
field at displacement 1C (hexadecimal) into AIT5ECT is also defined as eSADTVTl for use by OS simulation routines. lDTSECT is invoked by the ArT macro. 0 8 10 18 20 28 30 38 40 48 50 58 60 68
Hexadecimal Field
Iisplacement Name ADTPTR
ADTFDA
ADTMFDA
ADTFSTC
ADTCFST ADTNUM ADTLEFT ADTCYL ADTMSK ADTPQM1
ADTPQM3
ADTLFST ADTXNREC ADTID 1*1 A*2
lDTDTA ADTMFDN lDTBECT
ADTCBEA lDT1ST lDTUSEI lDTLAST A*3 1*4 A*5 I A*6 ADTQQM ADTPQM2
ADTLBBA AtTNACW ADTRES ADTXAREC Field Description, Contents, Meaning !2f Dis!§ o ADTID DS CL6 Disk identifier (label)
6 ADTFLG3 DS 1X A*1 Third flag tyte
7
8
C 10 14
18
1C
1C
Bits defined iDTFUiiD'-EQU ADTFXCBN EQU ADTFRWOS EQU ADTFSORT EQU ADTFORCE EQU ADTFNOAB EQU ADTFTYP DS ADTPTR DS ADTDTA DS ADTFDA DS ADTN DS ADTMFDA DS OSADTVTA DS ADTBECT DS in ADTFLG3 --X'80'--- X'40' X'20' X'10' X'08' X'04' 1X 1A
1A
1A
1F
1A OF 1F
First half of DMSAUD has been called
Extra chain link(s) to be returned
Read/write CS or Des disk
All FST hyperblocks and FST entries sorted CMS/reS/os disk forced to a read-only
For rMSAUI routine: Do not abend
if it is a disk error
A*2 Filetype flag byte
Pointer to next ADT tlock in chain
Device tatle address in NUCCN File directory (PSTAT) address
Number of doublewords in master
file directory Master file directory address VTOC address of OS pack FST byperblock count 140 IEM VM/370 Data Areas and Centrol Block Logic
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