Output program contents to the printer.
LLIST   ⎧ [ starting line number ] [ - [ ending line number ] ] ⎫
        ⎪   └────────┬─────────┘         └────────┬───────┘     ⎪
        ⎨      line number                    line number       ⎬
        ⎪   [ . ]                                               ⎪
        ⎩   [ ALL ]                                             ⎭
LLIST 50-100
Both the starting line number and ending line number are within the range of
1 ≦ line number ≦ 65535. The last line number used by BASIC is specified when . is used.
LLIST cannot be used in the CAL mode.LIST
Outputs the contents of current program area to printer.