Compact code and efficient RAM usage are the outstanding features of CC5X from B Knudson Data. The compiler has been and is still leading in generating compact code. Variables up to 32 bit is supported, including bit variables and bit functions. CC5X is suited for real-time applications requiring strong control of the generated code. The code can be inspected in the comprehensive assembly file produced. Download it at [1] http://www.bknd.com/cc5x/download.shtml