(CH)

The (CH) control code moves the cursor to the "home" position on the screen. Home position is the upper left foreground location of the screen. Since the cursor will land only in a foreground area, "home" may be something other than the upper left corner.

For example, if the upper left corner of the screen contains background or invisible (suppressed background) characters, the cursor will search to the right and to the next line(s) if necessary for the first available foreground position.

Once a foreground field is located, the cursor will be positioned at the first location in that field (left-most position for alphanumeric fields and right-most position for right-justified numeric fields).

a. 100 FORMAT (CH)
   .
   PRINT (0,100)

b. PRINT (0) (CH)