Control Data Corporation CYBER 170 Series Operator's Manual page 101

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x,n.
Brings a specified control point memory display to
the left console screen as follows:
x Display identifier (C, D, F, G, or M).
n Control point number.
All words displayed are relative to the reference
address (RA for central memory, RAE· for ECS
memory) for the control point specified by n.
When addresses relative to a control point are
displayed, the control point number appears next
to the display identifier at the top of the screen
(for example, D1S.). However, after a control
point memory display has initially been selected,
either absolute addresses or those relative to the
control point may be displayed. Pressing the =
key alternates the display between its relative and
absolute settings. When absolute memory
locations are displayed, the display identifier
appears alone at the top of the screen (the control
point number is erased).
xZ,aaaaaa.
Brings a specified memory display to the left
console screen, if not currently selected, and
provides display modification as follows:
x Display identifier (C, D, F, G, or M).
Z Type of display modification:
aaaaaa
z=O-3
Changes the specified
word group
(O
through 3)
to display the eight words
beginning at memory
location aaaaaa.
z=4
Changes the display so
that all four eight-word
groups are displayed as 32
contiguous memory
locations beginning at
location aaaaaa.
Z=S Advances the display by
aaaaaa locations.
z=6 Decrements the display by
aaaaaa locations.
Location parameter.
If a control point number appears with a memory
display identifier (C, D, F, G, or M) at the top of
the screen, the memory locations shown in the
display are relative to that control point. If no
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control point number is indicated, all memory
locations shown are absolute.
When a memory display is on the left screen, the address
can be stepped forward or backward 40 octal locations by
pressing the
+
or - key; the right screen is paged with the
left and right parentheses keys. Memory displays can also
be set to advance or decrement by a specified constant by
using the xS,aaaaaa. and x6,aaaaaa. entries.
For example:
Carriage return Causes the
message to
section 1).
REPEAT ENTRY
appear {ref er to
C5,101. Increments present C display by
101. Each successive carriage
return increments the displays by
101.
x6,aaaaaa. is used in the same manner to decrement by the
value specified.
The selection of a control point memory display and/or the
selection of addresses for any word group on a memory
display remain in force even though the display is not on
either screen. For instance, if the standard format of xy.
is used to recall the C display' to the screen, the control
point and/or the addresses shown are those specified by the
last call in the format C,n. and/or CZ,aaaaaa. For
example, if the A and B displays are on the left and right
screens and you type in the following sequence, the displays
change as follows:
C,S.
C3,1234.
AB.
CB.
The A display on the left screen is
replaced by the C display showing the
words at locations 0 through 37 relative
to control point S.
The fourth group of words on the display
changes from words at locations 30
through 37 to those at locations 1234
through 1243.
The B display remains on the right
screen; the C display is replaced by the
. A display on the left screen.
The C display for control point 5 is
brought back to the left screen still
showing the words at locations 0 through
7 (group 0), 10 through 17 (group 1), 20
through 27 (group 2), and 1234 through
1243 (group 3).
Figure 4-S illustrates the C and D central memory displays,
figure 4-6 illustrates the F and G central memory displays,
and figure 4-7 illustrates the M ECS memory display.
4-9