Page of SY20-0884-3 As Updated 1, 1979 by TNL SN25-0497 CMSTAXE: Terminal Attention Exit
Element .149 CVTSECT: Communication Vector Table as
supported by CMS. DBGSECT: Debug Work Area DCHSECT: Data Control
Hyperblock(5748-XX8) •• DCHSECT: Data Control .150 •• 152 1;:)0 .156 DEVSECT: Device Table DSECT. .156 DEVSECT: Device Table DSECT(2148-XX8) .156.1 DEVSECT: Device Table .156.1 DEVTAB: Device Table .157 DIOSECT: Disk I/O Work Area. •• 160 DIRSECT: CMS PDS Directory
Entry (5748-XX8) ••••••• DIRSECT: CMS PDS Directory
En try (2 7 4.§=XE 1) DMSCCB: Command Control Block. DMSCCB: Command Control Block(2748-XX8) ••••••• DMSCCB: Command Control .162.1 162. 1 •• 162 .162.2 .162.2 DOSSECT: DOS Simulation control Block •• 164
EDCB: Edit Control Block •••••••• 166 ERDSECT: Error Hand,ling Routine DSECT •• 174 EXTSECT: External Interrupt Work Area •• 177 EXTUAREA: External User Area •• 179 FCBSECT: Simulated OS Control Blocks •• 180 FCHTAB: Fetch Table •••••• .184
FICL: First in' Class Block .185 FRDSECT: Free Chain Element Header
Blocks. •• .186 FSCBD: File System Control Block 188 FSTD: File Status Table Entry DSECT ••• 189 FSTSECT: File Status Table ••••••• 190 FVSECT: Fixed Variable Storage Work Area for CMS File Sy stem. 191
IHADECB: Data Event Control Block •••• 195 IOSECT: I/O Interrupt Save Area ••••• 196 KEY SECT: Disk Key Table DSECT for BDAM Simulation ••••••••••••••• 197 LABSECT: Tape Label Information (.2748- Xl!!>. LABSECT: Tape Label Information
.198 (.2 7 4 .§::.ill). 1 9 8 LDRST: Loader Storage Area. .198 LDRST: Loader Storage Area (5748-IX8) .198.1 LDRST: Loader Storage Area LIBSECT: CMS PDS Header ••• 202 LIBSECT: CMS PDS Header (5748-XE1) ••• 202 LUBTAB and LUBPR: Logical Unit Block
Table ••••••••••••••••• 202 LUBTAB and LUBPR: Logical Unit Block
Table (.2748-XX8) ••••••• LUBTAB and LUBPR: Logical Unit Block .202.1 Table(5748-XEi) .202.1 NICL: Number in Class. .204 NUCON: Nucleus Constant Area. .205 OPSECT: Major CSECT for all I/O Operation Lists. .219 OSFST: OS File Status Table ••••••• 222 OVSECT: Describes the First Few
Locations of DMSOVS •• .224 PCTAB: Program Check Option Table •••• 224 PDSSECT: Directory Table for BPAM simUlation. .225 PGMSECT: Program Interrupt Work Area •• 226 PIBADR: Program Information Block. .227
PIB2TAB: Program Information Block Extension. . . . . . . . .. .228 PUBADR: Physical Unit Block Table. .229 P{JBQWNER: Physical Unit Bleck Ownership· Table .230 SSAVE: System Save Area. •• .231 SUBSECT: Subset Work Area. SVCSECT: SVC Interrupt Storage SVEARA: LTA and PP Save Area DSECT SYSCOM: System Communication Region •• SYSNAMES: Saved Systems Names •• TLBBLOK: Tape Label Processing
.233
.234
.238 239
.242
Information (2148-XX8) ••••• TLBBLOK: Tape Label Processing
.242.1
Information (2148-XE1) ••• TSOBLKS: TSO Control Blocks ••• USAVE: User Save Area. .242.1
.243
.245 USERSECT: User Work Area .245 SECTION 3. RSCS DATA AREAS AND CONTROL BLOCKS. •• •••• .247 ASYNE: Asynchronous Exit Element .248 BUFDSECT: SML Telecommunications Buffer.249 COMDSECT: Address Constants as Pointers.250 DEVTABLE: NPT Device Table .251
FREEE: A Free Element on the Supervisor Element Queue .252 GIVE Request Table .253 GIVEE: A GIVE Element. •••• 253 IOE: An I/O Element. •••• 254 rOTABLE: An 1/0 Table. .255
LINKTABL: Link Table .256 REQBLOCK: NPT Request Block. .258 ROUTE: Routing Table Entry .259 SVECTORS: Low Storage Definitions. .260 TAG: RSCS File Descriptor. .263
TAGAREA. .265
TAKE Request Table ••••••••••• 265 TANKDSEC: SML Unit Record Tank .266
TAREA: A Task Save Area. .267 TASKE: A Task Element •••••••••• 269 TCTDSECT: Task Control Table .270 APPENDIXES .273 APPENDIX A. CP and RSCS EQUATE SYMBOLS .275 VM/370 Device Classes, Types, Models,
and Features. .276 VM/370 Equate Symbols -- Machine Usage •• .278 VM/370 Equate Symbols -- Machine Usage •• .278.1 VM/370 Equate Symbols -- Machine Usage •• .278.1 VM/370 Equate Symbols -- Extended
Control Registers .279 VM/370 Equate SymbolR -- CP rysage. .280 VM/370 Equate Symbols -- CP Usage 7 4 ,§- X X 8). 2 80 1 VM/370 Equate Symbols -- CP Usage (5748-XE1). •• ••• 280.1 VM/370 Registers .283 APPENDIX B. RSCS CONTROL AREAS .285 AXS Monitor Control Area .286
Contents vii
Page of SY20-0884-3 As Updated Aug. 1, 1979 by TNL SN25-0497 REX Monitor Control Area SML Monitor Control Area ••• 287
.288 APPENDIX C. RSCS REQUEST ELEMENTS. .291
Command ALERT Element Format A1. .292
Operational Notes. .292
Command ALERT Element Format A2. .293
Operational Notes. .293
Command ALERT Element Format LO, .294
Operational Notes. •• 294
Command ALERT Element Format L1. .296
Operational Notes. .296
Command ALERT Element Format L2. .297
Operational Notes. •• •• .297
Command ALERT Element Format L3 (also
Message Alert Element). .298
operational Notes. .298
Command Request Element. .299
Operational Notes. .299
File Request Element .300 Operational Notes. .300 FIGURES Figure 1. CP Control Block
Relationships ••••••••••••••••• 1
Figure 2. CMS Control Block
Relationships ••••••••••••••• 137
Line Alert Element Operational Notes. Message Request Element. Operational Notes. Port Table Operational Notes. Terminate Request Element.
Operational N?tes. APPENDIX D. CMS EQUATE SYMBOLS eMS Usage Equates. CMS Register Equates APPENDIX E. DATA AREAS AND CONTROL BLOCK REFERENCES. CP Control Block References •• CMS Control Block References RSCS Con trol BLock RefE!rences.
viii IBM VM/370 Data Areas and Control Block Logic .302 .302 .303 .303 .304 .304 .305 .305 .307 .308 .309 .311
.312
.322
.327
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