From the Fixed-Accuracy Arithmetic Functions listed in Vol 1/Signal Processing/Chapter 12 I do not see multiplication, addition and subtraction - do I miss something?
Also I suppose Ipp32f notation which generally means floating point, to be interpred as fixed point in the context of Fixed-Accuracy Arithmetic Functions. Am I correct?
Also, no it's not fixed point, but floating point. Those functions are functions that eat a lot of CPU but can be approximated with less accuracy for less CPU, that's why they are there. Even though there are native instructions to divide, it's still a very slow process, whilethe CPU can do several multiplications per cycle, hence nothing to speed up here.