DC3 is a complete but limited VB like compiler/interpreter that can be used for learning how to create a complete and fully functional compiler. It comes with its complete source code in Visual Basic 6. It compiles simple VB like programs and creates a byte code executed by a Virtual Machine, like Java and .NET languages.

Features:

• only simple VB types like string, integer (hexadecimal, octal), float, boolean
• global and local variables
• functions and subs
• operators like +,-,*,/,\,imp,eqv,xor,or,and,not,>=,<=,>,<,<>,=,&,mod,^ with the VB6 precedence order.
• the ´if´ and ´while´ statements
• VB functions like ´print´, ´msgbox´, ´clng´, ´cstr´, ´inputbox´, ´rnd´, ´exit´
• recursion