Texas Instruments TI-99/4A User Reference Guide

Special Keys
Several keys have special functions in TI BASIC, These keys are
discti::5scd here,
ENTER - When you press the ENTER key. the computer accepts the
program line you have just finished typing. Remember that you may
use up to four screen lines for each program line before you press
ENTER,
FCTN = (QUIT) - When you press QUIT. the computer leaves TI
BASIC and returns to the master computer title screen, When
the computer leaves TI BASIC, the program and all data stored
in memory is erased. Notc that this key does not close open files
(see
OPEN statement), Thus. it is preferable to use the BYE
command to leave BASIC.
FCTN r (UP) - The Up·Arrow key works exactly like the ENTER key,
except in Edit Mode
FCTN 1 (DOWN) - The Down-Arrow key works exactly like the
ENTER key, except in Edit Mode.
FCTN ... (LEFT) - The Left-Arrow (backspace) key moves the
cursor one position to the left every time it is pressed, When the
cursor moves over a character it does not delete or change it in any
way. If the cursor reaches the beginning of the line. pressing the
Left-Arrow
key has no effect.
FCTN - (RIGHT) - The Right-Arrow (forwardspace) key moves
the cursor one position to the right each time it is pressed. Using
this key allows you to move the cursor over a character without
deleting or changing it in any way, If the cursor reaches the end of
the line (4 screen lines), pressing the Right-Arrow key has no effect.
FeTN 2 (INS) - The Insert key is used to insert characters in the
middle of a program line. To insert characters, position the cursor
(Il';:.ing peT.. ... or IfCT" - ) over the character immediately to
the right of the place where you wish to insert characters, then
press the Insert key, After you have pressed the Insert key. each
time you press a character, the cursor and every character of tht->
program line that is not to the left of the cursor is moved one
position to the right.
The character corresponding to the key you
pressed is then inserted in the blank position left by the shifting of
the cursor and other characters. Note that characters shifted off the
end of the program line are deleted from the line. When you have
finished inserting characters. press any other special key listed
above. except QUIT.
User's Reference Guide
11-5

Texas Instruments TI-99/4A Specifications

General

Brand	Texas Instruments
Model	TI-99/4A
Category	Desktop
Language	English