Writes a string of characters to the screen starting at the current position and scrolling.
call "CBL_WRITE_SCR_TTY" using     character-buffer
                                   string-length
                         returning status-code 
               	 | Using call prototype (see Key) | Picture | |
|---|---|---|
| character-buffer | pic x(n). | pic x(n). | 
| string-length | cblt-x2-compx | pic x(2) comp-x. | 
| status-code | See Library Routines - Key | 
| character-buffer | The characters to write. | 
| string-length | The length of the string to write. If this would go off the edge of the screen, the screen is scrolled up a line and the write continues on the bottom line. | 
None