All the code using non-optional c constructs will compile. If you're doing something that uses floating point math and expecting to run it on a 16-bit DSP, you'

All the code using non-optional c constructs will compile. If you're doing something that uses floating point math and expecting to run it on a 16-bit DSP, you're probably doing something wrong. The biggest hurdle isn't compiler support, rather converting all the floating point operations to fixed-point and ensuring that you have enough resolution such that rounding errors don't make your IIR filter unstable for example. That's really outside the scope of the discussion though, as that is just an aspect of practical DSP using fixed point math.