FILLSCR is a simple program designed to emit text to the screen,        
in an attempt to "fill" the screen (to test the size of terminal        
memory).                                                                
                                                                        
You can tell FILLSCR if you want simple text (one character             
of memory used per character of display) or complex text                
(each displayed character requires 2 to 5 characters of                 
display memory, depending upon implementation).                         
                                                                        
You can tell FILLSCR how wide the output should be, and                 
how many lines to display.  You can also choose whether or not          
each line should start with a line number.                              
                                                                        
Options are entered via the INFO string, in any order and               
they are not case sensitive.  In the following, the uppercase           
portion indicates the required minimum abbreviation.                    
                                                                        
INFO options:                                                           
                                                                        
   CLEAR          (or: CLS)                                             
                                                                        
      Clears the screen/memory at start (<esc>H<esc>J sequence)         
                                                                        
    COLumns #     (or: WIDTH #)                                         
                                                                        
      Specifies the number of displayed characters per line.            
      Note: FILLSCR displays that number minus one, to avoid            
      the problem of 80th character causing an auto cr/lf on            
      most terminals (where "80th" means "right most character,         
      but that's 80 for a classic terminal).                            
                                                                        
   [no]COMPLEX                                                          
                                                                        
      Do [not] emit complex output.  In COMPLEX mode,                   
      each character is preceded with an escape sequence like           
      <esc>&dx, where "x" varies from "@", to "A", to "B", ...          
      to "N", and finally to "O", and then restarting at "@".           
      I.e., all 16 possible display enhancement modes are               
      used, one per character of displayed output.                      
                                                                        
      For some terminals / emulators, this will sharply reduce          
      the number of lines they can display.                             
                                                                        
   [no]CONTinuous                                                       
                                                                        
      CONTINUOUS tells FILLSCR to write 'forever' (or, until            
      a control-Y or the program is aborted).                           
                                                                        
      Note: sometimes, control-Y is ignored by MPE ... FILLSCR          
      will periodically check the JCW called, cleverly, "JCW" ...       
      if its value is non-0, then FILLSCR will stop.                    
      Because of this check, if CONTINUOUS is selected,                 
      FILLSCR will start by setting JCW to 0.                           
                                                                        
   DELETE                                                               
      Delete (via esc,A,esc,M) every tenth output line.                 
                                                                        
   HELP                                                                 
                                                                        
      Displays this help, then terminates.                              
                                                                        
   [no]LINENUMBERS                                                      
                                                                        
      Do [not] show the line number at the start of each line of        
      output.                                                           
                                                                        
   LINES #        (or: ROWS #)                                          
                                                                        
      Print the specified number of lines of output, then stop.         
                                                                        
      Note: LINES 0 is treated as CONTINUOUS.                           
                                                                        
   VERSion                                                              
                                                                        
      Displays the FILLSCR version, then terminates.                    
                                                                        
Default:  LINES 1000 COLUMNS 80 LINENUMBERS                             
                                                                        


Version 20141007