Scroll; Caps Lock; 40/80 Display; Alt - Commodore 128D User Manual

I \
r \
, \
I \
! \
f \
No Scroll
Caps Lock
40/80 Display
Alt
you press HELP, the line with the error is high
lighted on the screen in reverse video (in 40
column), or underlined (in 80 column output).
For example:
7SYNTAX ERROR IN LINE 10 Your computer
displays this.
HELP You press HELP.
10 PRONT "COMMODORE COMPUTERS"
The line with the mistake is highlighted in
reverse if in 40-column output, or underlined
in 80-column output.
Press this key down to stop the text from scroll
ing when the cursor reaches the bottom of the
screen. This turns off scrolling until you press
the NO SCROLL key again.
This key lets you type in all capital letters with
out using the SHIFT key. The CAPS LOCK key
locks when you press it, and must be pressed
again to be released. CAPS LOCK only affects
the lettered keys.
The 40/80 key selects the main (default) screen
format: either 40 or 80 column. The selected
screen displays all messages and output at
power-up, or when RESET, or RUN/STOP/
RESTORE are used. This key may be used to set
the display format only before turning on or
resetting the computer. You cannot change
modes with this key after the computer is
turned on. Section 8 provides an explanation of
40/80 column modes.
The ALT key allows programs to assign a special
meaning to a given key or set of keys.
Unless a specific application program redefines
it, holding down the ALT key and any other key
has no additional effect.
91
USING C128 MODE—Some BASIC Commands and Keyboard Operations Unique to
C128 Mode