Instructions

192Compiler

4.3 BASIC

The second programming language for the C-Control Pro Mega Module is BASIC. The Compiler

translates the BASIC commands into a Bytecode which is then processed by the C-Control Pro In-

terpreter. The language volume of the BASIC dialect used here corresponds to a large extent to the

industry standard of the large software suppliers.

The following language constructs are missing:

Object oriented programming

Structures

Constants

Detailed program examples can be found in directory C-Control Pro Demos which was installed

along with the design interface. There example solutions can be found for almost every field of pur-

pose of the C-Control Pro Module.

The following chapters offer a systematical introduction to syntax and semantics of C-Control Pro

BASIC.

4.3.1 Program

A program consists of a number of instructions (such as e. g. "a=5;") which are distributed among

various Functions. The starting function, which must be present in every program, is the function

"main()". The following is a simplistic program able to print a number into the output window:

Sub main()

Msg_WriteInt(42) // the answer to anything

End Sub

Projects

A program can be separated into several files which are combined in a project (see Project Manage-

ment). In addition to these project files Libraries can be added to the project which are able to offer

functions used by the program.