12.10 DSP Built-In Functions
Built-in functions are very similar to standard function calls in syntax. Your application passes parameters to a built-in function, and the built-in function returns the result to variables. The difference between a built-in function and a standard function is that the compiler directly can map the built-in function to a specific instruction sequence for better performance. The DSP built-in functions are listed in (see 29 Built-In Functions).