Texas Instruments TI-99/4A User Reference Guide

CLEAR subprogram
CALL CLEAR
The CLEAR ::;uuprugl (fIll i:s u:scu tu clear (crase) the entire screen.
When the CLEAR subprogram is called, the space character (code
32) is placed in all positions on the screen.
When the
program on the right is run, the screen is cleared before
the PRINT statements are performed.
If the space character (code 32) has been redefined by the CALL
CHAR subprogram, the screen will be filled with the new
character, rather than with spaces, when CALL CLEAR is
performed.
11,72
Examples:
>PRINT "HELLO THERE!"
HELLO THERE!
>CALL CLEAR
--screen clears
>NEW
>100 CALL CLEAR
>110 PRINT "HELLO THERE!"
>120
PRINT "HOW ARE YOU?"
>130 END
>RUN
--screen clears
HELLO THERE!
HOW ARE YOU?
** DONE **
>NEW
>100 CALL CHAR(32,"0103070F1F
3F7FFF")
>110 CALL CLEAR
>120 GOTD 120
>R U t>l
--screen wiLL be fiLLed
\lith ...
(pre5~ CLIiAR to 0 top
the program)
User's Reference Guide

Texas Instruments TI-99/4A Specifications

General

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