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Keys Used for Scrolling the Program
All of EDIT mode's text-entry capabilities apply to the "current line" -the line in the
middle of the screen with the cursor on it. That is, you must move a line to the current-
line position before you can edit it!. The text on the screen is scrolled so that you are
always editing the line in a "window" in the middle of the screen.
!!JOlting .n.ey
EXplanatIOn
m
scrolls the program up one line, so that you will be
editing the next program line. (Note that the cursor
remains on the line in the middle of the screen.)
[!]
scrolls the program down one line, so that you will be
editing the preceding program line.
I
Shift
~m
scrolls the program all the way up, so that the end of the
program is displayed and the next available line number
is shown on the current line.
I
Shift ~[!]
scrolls the program all the way down, so that the begin-
ning of the program is displayed and the first program
line is the current line.
Knob or mouse
scroll the program.
1
The only exception to this is when you enter a new line with the same line number as an existing line.
In that case, the new line replaces the old, even though the old line was not moved to the current-line
position.
Editing and Storing Programs 6-9
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