int e l 2.7 DESCRIPTION OF COMMANDS COMMAND: NULL [integer](cr) ACTION TAKEN: The NULL[integer] (cr) command determines how many NULL characters (00H) MCS BASIC-52 will output after a carriage return. After initialization NULL = 0. The NULL command was more important back in the days when a "pure" mechanical printer was the most common I/0 device. Most modern printers contain some kind of RAM buffer that virtually eliminates the need to output NULL characters after a carriage return. NOTE -- the NULL count used by MCS BASIC-52 is stored in internal RAM location 21 ( 15H). The NULL value can be changed dynamically in a program by using a DBY(21) = [expr] statement.
The [expr] can be any value between 0 and 255 (0FFH) inclusive. VARIATIONS: None. - 19 -