Does anyone happen to know whether the iPhone has an FPU and what the performance of floating point operations is?
I've seen a few references to a "vector floating point co-processor for 3d graphics" [1], but it's unclear to me whether that's something that needs a special API to access, or is it like a normal FPU and the just compiler uses it whenever you use floats?
I'm guessing there must be decent floating point, what with all the OpenGL stuff going on. But I'm wanting to figure out whether I can use floats or if I'll need to do fixed point math. Are there pointers to performance numbers perhaps?
[1] -
iPhone processor found: 620MHz ARM CPU - Engadget
