CLD-V2600 / 2400 Level I & III • Chapter Four

29) CLEAR SCREEN

LD/CD

 

Function:

The characters shown in the User Display Area are cleared.

Format:

C S

 

 

Explanation:

Characters on all of the lines are cleared. To clear only a

 

particular line, overwrite the line with spaces by means of the PR

 

command.

 

 

Execution:

C S 3 P R <C/R>

R <C/R>

 

HELLO ! <C/R>

R <C/R>

*All the lines are cleared and a string of seven characters is written in Line 3.

4 P R <C/R>

R <C/R>

 

SELECT A MENU ITEM <C/R>

R <C/R>

* A string of 18 characters is written in Line 4.

3 P R <C/R>

R <C/R>

 

string of seven spaces

<C/R>

R <C/R>

*Spaces overwrite the seven character word in line 3, so it appears only line 3 is cleared.

CS<C/R>

R<C/R>

* All lines are cleared.

 

CLD-V2600 / 2400 Level I & III User’s Manual TP 117 v. 2.0 • 12/93

4-29