Compiler directives control how a program is compiled. D3 supports a number of compiler directives to affect how a program is compiled.
Any line that begins with a dollar sign character ($) is considered to be a compiler directive.
The BASIC compiler stores the object code for a BASIC program in the dictionary of the same file as the source code, using the same item-ID.
Remarks or comments can be embedded anywhere in the program without affecting program execution. These remarks can be used to document or explain the logic of the program.
REM THESE BASIC STATEMENTS ! DO NOT AFFECT * PROGRAM EXECUTION