Page of GC20-1807-7 As Updated April 1, 1981 by TNL GN25-0829 shadow table bypass (5748-XE1) 98-98.1
shared segments 135
descr ibed 135
discont iguous 135-136
protected 140-142 special considerations 135
unprotected 140-142 virtual machine operation signaling, in attached processor mode 180 SIGSAVE (DMKEXT save area) 49
simulat ion 88
of DOS/VS functions by CMS 285
single processor mode
advantages of (5748-XE1) 102.2-102.3 commands used with (5748-X!1) 102.2-102.3 performance impact of (5748-XE1) 102.2-102.3 purpose of (5748-XE1) 102.2-102.3 systems supported (5748-XE1) 102.2- 102. 3
use of the V=R machine 102.2-102.3 single-instruction mode 82 SIO (§,ee start I/O (SIO) instruct ion)
small CP option
effect on performance 78.1
purpose of 78.1 SML LOG record 341 SMSG command, overview of 171-172 SNAP macro 276
spanned records, usage 278-279 S PB (Set Page Bound ary) car d 214
special diagnose for shadow table
maintenance (5748-XE1) 204 special message facility 171-172
authorization 171-172
buffer length description 171-172
introduction to 171-172
sending or receiving messages 171-172 SMSG command 171-172
using 171-172
special message flag
purpose of 171-172
turning on or off 171-172 SPIE macro 274 SPOOL command, 3800 printer support 227
spool file
access, RSCS 337
manipulation 187-190
recovery
after checkpoint start 81
after force start 82
after warm start 81
spooling
described 80-82 terminal input 82
terminal output 82
via RSCS 80-82 STAE macro 276 START command, 3800 printer 227
start I/O (SIO) instruction
handling 89-90 reducing 89- 90· STAX macro 277 STCP, command 41 380 IBM VM/370 System Programmer's Guide STIMER macro 276
stop execution 40 ADSTOP comman d 32
BR EAK subcommand of DEBUG command 32
stop tracing SVCTRACE comm and 35-36 TRACE command 35-36 storage allocation 250 RSCS 331 CMS 245
dump CMS 22 CP 18
dynamic paging 90-91 protection
fetch 78
storing 77-78
releasing 252
requirements
assembler 323
for CMS support of VSAM 312-313
for CMS/DOS 308 storage size
maximum, replacing directory entry 206-210 virtual machine, repla cing directory
entry 206-210 STORE command 41
summary 34-35
storing
data
into CA W, SE T CA W subcomma nd of DEBUG command 35
into control registers, STORE command
34-35
into CSW, SET CSW subcommand of DEBUG command 35
into floating-point registers, STORE command 34-35
into general registers, SET GPR subcommand of DEBUG command 34-35
into general registers, STORE command
34-35
into PSW, SET PSW subcommand of DEBUG command 35
into PSW, STORE command 35 S10RE command 34-35 S10RE subcommand of DEBUG command
34-35
information 37
storage protection 77-78 STOW macro 275 STRINIT macro 244-246
structure, of RSCS storage 331 SVC handling
by user 258
commands entered from terminal
259-260
invalid SVC s 258-259
linkage 257-2 58 OS and DOS/VS SVC simulation 258
type of SVC 257- 258
in terrupt CMS internal linkage SVCs 236
other CM S SVC S 236- 237
Page of GC20-1807-7 As April 1, 1981 by TNL GN25-0829 problem state 87 supecvisoc state interrupts, RSCS 339 SVC 202· 257-258
search hierarchy 259 SVC 203 257-258 SVC 76, issuing from a second level virtual
machine 197 SVCOPSW (SVC old PSi) 69 SVCREGS (SVC interrupt save area) 50 SVCSECT (SVC interrupt work area) 72 SVCTRACE command 64.2-66
summary 35-36
usage 29-30 SWTHSA VE (DHKSTK save area) 50 SYNADAF macro 277 SYNADRLS macro 277 SYSJRL macro instruction 229
system
abend 20 dump spool file, reading 196-197
logical units 288-288.1
performance
for mixed mode foreground/back grou nd
systems 126 . measurement 103 routine, abnormal termination of 20 symbol table, reading 197 SYSTEM command 39
system name table (DMKSNT) 132-142 System/370 T
control registers
allocation 345
assignments 346-347
extended control (EC) PSi 348
informa tion 345
tape label processing in CMS/DOS 309 tape label processing in CKS/DOS (5748-XE1) 309 TCLEARQ macro 277
terminal interruptions, in eKS 238 macros 277
TIME, macro 275
time manaqeme nt 76
time slice 84-85
t ime-of-day (TOD) clock 176
in attached processor environment 176
timers
clock comparator 177
interval timer 101,175-176 processor ti.er 176
pseudo timer 177
Time of Day (TOD) clock 176 TOO-clock accou nting inter face (5748- X EI) 204-204.1 TRACCURR (current trace table entry) 47-48
TRACE
command 40-41 summary 35-36
usage 23,24-25,26-27,29-30
TRACEND (end of trace table) 47-48
tracing qU- q 1
all user I/O operations, TRACE command
35-36
branches
TRACE command 35-36 CCis, TRACE command 35-36
clear channel instruction 44
CP trace table 44
external interrupts, TRACE command
35-36
information 37
instructions
TRACE comm an d 35-36
interrupts 44
TRACE command 35-36 I/O 44
interrupts, TRACE command 35-36
NCP BTU 44
privileged instructions, TRACE command
35-36
program interrupts, TRACE command 35-36
queue drop 44
real machine events, MONITOR comma nd 35-36
run user requests 44
scheduling 44
storage management 44 SVC interrupts SVCTRAC E command 35-36
TRACE command 35-36
user operations, TRACE command 35-36 TRACSTRT (start of trace table) 47-48
transient area 263
transient area (CMS) 242
transient routines supported by CMS/DOS 304- 305 TTIMER macro
type (device) U 276 60-62 UCS (Universal Character Set) adding buffer images 217-218 supplied images 216-217 UNAUTHORIZE, VKCF subfunction 154
unexpected results 6 also problem types)
reason for 24-25
unit record, devices, sharing Universal Character Set (see Universal Character Set unproductive processing time
user directory
reading 197
updating 197 80-82 UCS) UCS) 6
user doubleword, VMCF function 164-167
user options, replacing directory entry 206-210 user-controlled device interrupts 238 USER SECT (User A rea) 241
Index 381
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