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Display Fctns
Any char
Display Fctns
(unshifted-[][]) sets the display-functions mode, allow-
ing you to see special control characters (e.g., form-feed, carriage
return) on the screen. Pressing this key a second time cancels the
display-functions mode. An asterisk
(*)
appears next to
Fctns
to
indicate that display-functions mode is "on".
Type the following line:
PRINT "DISPLAY-FUNCTIONS MODE OFF"
I
Return
1
Notice the display at the top of the screen.
Now press
Recall
(unshifted-[][]) to recall the line, and edit it to read:
PRINT "DISPLAY-FUNCTIONS MODE ON"
Press
Display Fctns,
and then press
I
Return
I.
Notice that the carriage
return (CR) and line-feed (LF) control characters are now displayed.
Press
Display Fctns
again to exit display-functions mode.
Press
I
Clear display
1
when finished.
Any char
(unshifted-illJ) is used to find any ASCII character. First
press
Any char.
The following message appears above the menu:
Enter 3 digits, 000 to 255
Enter a three-digit number from 000 through 255 representing the
decimal equivalent of an ASCII character. The computer automati-
cally displays the character on the screen. For a list of characters and
their equivalent decimal values, see the US ASCII Character Codes
table in the "Useful Tables" appendix of the
BASIC Language Ref-
erence.
Press
Any char,
then type 65 which is the decimal equivalent of "A" .
The display line now displays "A". Press
I
Shift
H
Clear line
1
to erase it.
ITF Keyboards
7-15
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