Special Characters - Control Data Corporation CYBER 170 Series Operator's Manual

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PPU BUSY.
t
DSD signals that a keyboard entry is complete by
intensifying individual characters in rotation. At this time,
press the CR key. DSD checks the command and begins
processing if it is found to be acceptable. If the command
is processed successfully, it is erased from the display
screen. However, if DSD must wait for a resource to
become available (such as a channeI), or if the command
was not acceptable, one of the following messages is
displayed above the command.
DSD is waiting for a PP to be assigned so that it
can process a command.
MTR BUSY.
t
DSD is waiting for a response from the system.
If such a message persists for any length of time, terminate
ILLEGAL ENTRY. the entry by pressing the erase or BKSP key.
Command not recognized by DSD. Correct or
reenter the command.
SPECIAL CHARACTERS
DISK BUSY.
DSD is waiting f.or an overlay to be loaded from a
mass storage device.
In addition to the command entries, the keys listed in table
1-1 have special meaningto DSD.
Key
Identifier
Name
*
Asterisk
=
Equals
+
Plus
TABLE 1-1. SPECIAL CHARACTERS
Action Initiated
Alternates display control between DSD and DIS each time the key is
pressed.
Alternates left screen memory display (C, D, F, G, or M) between absolute
locations and those relative to a control point each time the key is
pressed. However, unless a control point memory display is currently
selected (refer to Storage Displays in section 4), only absolute locations are
displayed. That is, pressing the
=
key has no effect unless you select the
0
control point memory display.
I
Advance left screen display as follows:
Memory displays Advances display address by 40
(C, D, F, G, M) octal locations.
E, A display
Advances to next page of
equipment status display.
H display
Advances to next page of
F NT display.
N display
Advances file displayed by I
one-half of a sector.
P display Advances to next page of P
display.
R, T displays Advances to next page of R
or T display.
A, J, K, L displays
Advances control point number.
tIf
the message is preceded by LOG -, the command has been executed ·but not yet logged in the system dayfile and/or error
./ log. (Refer to DSD Commands, in section 3.)
60435600 L
1-3