SET then, to use hardware assist, the virtual machines
affinity must be set to match processor that contains hardware assist. and NOTMR operands control the method of updating the
virtual interval timer (virtual address X'SO') • If TMR is
specified, the virtual interval timer assist hardware updates
the virtual interval timer in the same way that the real interval timer is updated, that is, 300 times per second. If NOTMR is specified, the virtual interval timer is updated only
when :0 is qiven control. This can be as seldom as once per
time slice interval. See the VM/370 for additional information-an-how to use VM/370 hardware assist. r , PFnn ,rpfdatal#pfdata2# ••• pfdatan] , L J
defines a program function for a program function key on a 3270 display station and indicates when that function is to be
executed. If PFnn is specified with no operands, that program
function key is considered "undefined." See the for a description of how to use the 3270 proqram function keys.
In PFnn, nn is a number from 1 (or 01) to 12 that corresponds to a key on a 3270 display station. The program function is a
proqramminq capability you create by defining a series of VM/370 commands or data you want executed. This series of
commands is executed when you press the appropriate program key. IMMED specifies that the program function is executed
immediately after you press the program function key. DELAYED specifies that execution of the program function is delayed for a display terminal. When the program function is
entered, it is displayed in the input area and not executed
until you press the Enter key. DELAYED is the default value
for display terminals. pfdata1#pfdata21.$eepfdatan defines the VM/370 command or data lines that constitute the
proqram function. If more than one command line is to be
entered, the pound siqn (#) must separate the lines. If you
use the pound sign (#) to separate commands that you want
executed with the designated PF key, you must precede the command line with #CP, turn line editing off, or precede each
pound sign with the logical escape character ("). For further
explanation, see the "Usage Notes" section that follows. If
no lines are entered following the PFnn designation,
then the proqram function is marked undefined. Program cannot be embedded within one another. PFnn [TAB n1 n2 ••. ,
specifies a proqram function key number to be associated with tab settinqs on a terminal. The number of the PF key, nn, can
be a value from 1 (or 01) to 12. If the TAB keyword and tab
settings are not entered, that program function key is
considered "undefined." For examples of how this feature is
used, see the TAB is a keyword
identifyinq the tab function. The tab settings (n1 n2 ••• ) may
be entered in any sequence. When defining the TAB
section 5. Format of CP Commands 135

function, the existence of blanks preceding the keyword TAB or
the lack of trailinq tab settings forces the pf key to be
treated as ufdata. PFnn [COPY [resid]l
specifies that the program function key numbered nn performs a COpy function for a remote 3270 terminal. The number, nn,
must be a value from 1 (or 01) to 12. The COPY function a printed output of the entire screen display at the
time the PF key is actuated. The output is printed on an IBM printer connected to the same control unit as your display terminal. The resource identification, resid, may be
specified if more than one printer is connected to the same
control unit as your display terminal. It is a
three-character hexadecimal resource identification number
assigned to a specific printer. If resid is entered, the
printed copy is directed to a specific printer; if not, the copy is printed on the printer with the lowest resid number.
The resid numbers of the printers available to your display terminal can be obtained from your system operator. If only
one printer is available, as with the 3275 Display Station,
resid need not be specified. PFnn [COpy [cuu]]
specifies that the designated program function key, PFnn, performs a COpy function for a local 3270 terminal. The
numher of the PF key, nn, must be a value from 1 (or 01) to
12. When the PF key is pressed, the function produces a
printed outuut of the entire local screen display except for
the status field, which is replaced with blanks. The cuu
represents the real hardware address of the display printer,
and may specify a printer that is on a different control unit
than the one to which your 3270 is attached. If you do not
specify cuu, the printer with the lowest cuu that is available
on the same control unit as your 3270 is selected. For both remote and local COpy functions:
1. receive a NOT ACCEPTED message, displayed in the screen status field of your 3270, if any of the following situations occur: • The printer is already busy, or all printers are busy. • The printer is turned off. • The printer is operational but has not been varied online by the
system operator. • The printer is out of paper
intervention-required condition.
or is in any other • The designated device is not a 3284/3286/3287/3288/3289 printer. • The SET PFnn COPY command format is invalid.
2. You include your own identification on the printed output by enterinq the data into the user input area of the screen before you press the OF key. The identification appears on the last two lines
of the printed copy.
136 VM/370 CP Command Peference for General Users