RUNNING BASIC UNDER RSTS/E The default run-time system is BASIC-PLUS. If you wish to write a BASIC PLUS program you will find the following commands useful: OLD filename Calls up an old file with a default .BAS extension into your area as a BASIC PLUS program NEW filename Creates a new file for a new program you wish to write. SAVE filename Saves your program in your program area with the specified filename COMPILE filename Compiles the program currently in your program area into the file you specify. REPLACE Adds any changes you have made to your copy of the program in your specified file. II. BASIC PLUS 2 BASIC-PLUS 2 is not an interactive BASIC. You supply it with a source program which it then compiles. It will inform you of errors in the compilation process. Then you execute the program. To Enter BASIC-PLUS 2: Type: RUN $BASIC2 To Exit from BASIC-PLUS 2: Type: BYE