User`s manual

9.Command details

9.1 Overwrite mode

In this mode, the cursor will move rightward and begin from the upper

left-end position. When the cursor reached the end of the upper line, the

cursor will move down to the bottom left-end position to continue. When the

cursor reached the end of the bottom line, it will move up the upper left-end

position and overwrite the previous characters.

9.2 Vertical scroll mode

In this mode, the cursor will move rightward. The cursor will begin from the

upper left-end position until it reached the end of the upper line, the cursor

will then move down to the bottom left-end position to continue until it

reached the end of the bottom line.

9.3 Horizontal scroll mode

In this mode, the extend of the cursor activity is bond by predefined range,

limited to the upper line.(Please refer to Set or cancel window command),

where the default window is the whole upper line. The cursor will begin

from the left-end of the range and move rightward until it reached the end

of the range, to continue, the characters that comes thereafter will start

pushing the previous characters leftward from the right-end, scrolling the

characters to the left.

9.4 Set the string display mode, and write string to display

Set the string display mode, write to upper or lower line d1 d2 d3 ….. dn

{1 n 20} ‘A’ stands for the upper line, ‘B’ stands for the lower line, The