Texas Instruments TI-99/4A User Reference Guide

EDIT
{
EDIT
line-number
line-number
j FCTN t
i FCTN •
Existing program lines may be changed by entering Edit Mode.
You can enter Edit Mode by entering the EDIT command followed
by a line-number
or by typing in a line·number followed by FCTN ,
(Up-Arrow) or FCTN 1 (Down-Arrow). Either way you choose
to enter Edit Mode will bnng the hne speclfied by the lme-number
onto the screen.
If you specify a line-number which is not in the
program, the message "BAD LINE
NUMBER" is displayed.
When you
enter Edit Mode, the program line you requested is
displayed on the screen. The prompt character (» is not displayed
to the left of the line when you are in Edit Mode. When the
requested line is displayed, the flashing cursor is positioned in the
second character position to the right of the line number, Changes
may be madc to any character on the line except the line number
using the special keys described below and typing over the
characters you wish to change. You cannot move the cursor back
over the line number. Thus. you cannot change the line number in
Edit Mode. The special editing keys and their functions in Edit
Mode are discussed here.
ENTER - When you press the ENTER key. all changes you have made
to the program line become
permanent and the computer leaves
Edit Mode. If you have erased the entire text of the program lint'
and then press ENTER, the program line is deleted. Note that the
cursor does not have to be at the
end of the line for the entire line to
be entered.
FeTN t (UP) - When you press the Up-Arrow key, all changes
you have made to the program line are entered and become
permanent.
The next lower numbered line in the program is then
displayed for editing.
If no lower numbered program line exists,
then the computer leaves
Edit Mode. Note that the cursor does not
have to be
at the end of the line for the entire line to be entered by
the Up-Arrow key.
peTN t (DOWN) - Whell YUU pre~~ the DuwTl-Arruw key, all
changes you have made to the program line are entered and become
permanent. The next higher numbered program line is then
di~played fur editing. If no higher numbered program line exists,
then the computer leaves
Edit Mode. Note that the cursor does not
have to be at the end of the line for the entire line to be entered by
the Down-Arrow key.
11-38
User's Reference Guide

Texas Instruments TI-99/4A Specifications

General

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