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Emulation Mode
CHARACTER-ORIENTED CURSOR MOVEMENT KEYS
The IBM 3276 provides five keys that move the cursor a character at a time. All of these keys
repeat their function if you continue to hold them down.
Vertical Movement Keys
IBM 3276. The
CURSOR UP
and the
CURSOR DOWN
keys move the cursor vertically
through a column. Depending upon the model number, a 3276 Control Unit may display 24,
32, or 43 lines (where each line is 80 columns wide). The vertical cursor movement keys wrap
on the top and bottom lines of the workspace area, not the physical dimensions of the screen.
HP 2625A. The _
and _
keys duplicate the action of the
CURSOR UP
and
CURSOR
DOWN
keys. However, when the screen format exceeds 24 lines and the cursor is in the
bottom line, pressing the _
keys rolls the workspace up one row so that the cursor appears
in the next row. Similarly, when the cursor is in the top line of the screen window and text
exists beyond the window's bounds, pressing the _
keys rolls the workspace down one row
so the cursor appears in the appropriate row.
Scroll Function Keys
With the HP 2625A, you may also use the ((Roll" and ((Page" keys to view lines that have
rolled off the screen.
When data extends above the screen's top border, pressing the
II
key exposes the previous
line in display memory. If you continue to hold the key down, this action repeats until the top
line of data becomes the first line on the screen's display.
When data exists below the screen's bottom border, pressing the •
key exposes the next line
in display memory. If you continue to hold the key down, this action repeats until the last line
of data in display memory appears at the top of the screen.
In its IBM personality, the terminal associates the cursor with a row and column location.
When you press either Roll key, the cursor retains its current row and column position if this
is possible. The cursor appears to move therefore with the display instead of remaining
stationary as it does when these keys are pressed while the terminal is in its HP personality.
However, since the cursor always remains on the screen, when the cursor is in the screen's top
row and the •
key is pressed, the cursor remains within the screen's top row. Similarly,
when the cursor is at the screen's bottom row and the
II
key is pressed, the cursor remains
within the screen's bottom row. Nevertheless, the terminal ((remembers" the cursor's initial
row, column setting. If subsequent Roll or Page operations display the cursor's initial location
on the screen, the terminal properly positions the cursor at this location.
The. key displays the first 24 rows of the screen's configured workspace area. For either a
32 row or 43 row workspace area, this corresponds to rows
1
through 24.
The
lIB
key displays the last 24 rows of the screen's configured workspace area. For a 32 row
workspace area, this corresponds to rows 9-32. For a 43 row workspace area, this corresponds
to rows 20-43.
F-29
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