Coa.and 80i'itQr SIYBSYS STCP TRace COUPLE DEFine DETach DISlble DISConn Elable Link LOIDBUF LOIDYFCB !JETwcrt YIRY Coa.and Begrn- l!plaMti2n Initiate or terminate the recording of events that occur in
the real aachine (Classes I and E).
Provide a storage copy of virtual aachine storage,
registers, and PSW contents as they currently exist (Class
B). Change the contents of real processor storage (Class
Trace virtual aachine activity at the ter.inal, spooled
printer, or both (Class G) • ....... .1:: ....... &1 .... '- ....... &1 Attach a-real device for V8/370 control (Class B).
Connect virtual channel to channel adapters (Class G).
lIter the device feature of a 3330V (Class B). Reaove a real or virtual device or channel fro. a virtual
aachine or the real system (Class B and G).
Disable direct or switched communication lines froa the Y8/370 systea (Class A or B).
Disconnect the user's ter.inal fre. his virtual aachine
(Class Any).
Connect specified coa.unication lines to the system. (Class
B).
Provide access to a specified DISD device by a user's
virtual aachine (Class G).
Load the 1403 universal character set (UeS) buffer with a
specified train i.age. This command also has options that
control a 3211 printer (Class D) • Load the virtual foras control buffer for a virtual spooled
3211 printer (Class G). Allow the enabling and disabling of all or specific 3704/3705 resources. In addition, the Betwork coa.and is
used to vary resources offline or online (Class I and B). Illow or disallow the availability of a device to a virtual
aachine or the V8/370 control progra. (Class B). Continue or resuae execution of the virtual aacbine at a
specified storage location or at the address specified in
the current PSW (Class G). 220 Y8/370 Operator's Guide

Command 'EXTernal Ipl RESET SPool STore SYStem TERMinal COllmand i3ickspac CHange
Close
DRain
Flush
FRee
HOld ORDer PUrge REPeat SPAce SPool Simulate an external interruption condition for a virtual machine and return control to that .achine (Class G) • Initiate a program load for a virtual machine (Class G).
Clear all pending interruptions on a specified device (Class
G) • Allow the starting or stopping of virtual console spooling
as well as the alteration of other spooling control options
(Class G). Alter registers and storage of a virtual machine (Class G). Initiate the virtual Vft/370 console functions of clear, System Reset, and PSi Restart (Class G).
Redefine the user's terminal input characteristics and
attention interruption handling capabilities (Class G). l!.E1anat,i.QD Restart or backspace the output of a unit record spooling
device (Class D).
Alter one or more attributes of a closed spooled file (Class
D and G).
Terainate a spooling operation on a virtual console, reader,
printer, or punch (Class G). Stop spooling activity on the specified device after the
current file in operation reaches termination (Class D). Eliminate and halt the current file output on the specified
real unit record device (Class D) • Release spool HOLD status from previously held files for
real BDR, PUB, and PTB devices (Class D) • Defer file output to the real RDB, PTR, and PUB devices
(Class D).
Redefine the order of closed spool files (Class D and G).
Bemove spooled file(s) before reading, punching, or printing
(Class D and G).
Add to the number of copies of an output printer or punch
file on a real unit-record device (Class D). Force single space on the printer, regardless of carriage
control codes contained in the file (Class D).
Change spooling control options on a given device or group
of devices and also starting or stopping of console spooling
(Class G).
Appendix: Summary of CP Co •• ands 221