The EE-185 application note doesn't apply to division. In this thread http://ez.analog.com/message/2723#2723, someone has pointed out that the division has been included in the float16.h header. However, searching in the help for float16.h and div_fl16() comes up with nothing. It is possible that the updates up to VisualDSP++ 5.0 Update 8 has misplaced them somewhere? Does anyone know where I can find where this div_fl16 function is or what the current status is?