Re: Type fixed piont


SDV wrote:
If I want to take the code faster, without emulation of floating point, what
kind of type can I use?


you need to use the int type and use fixed point math, it will be 50x
faster, but I assume you don't any experience with fixed point math.
You probably need to use a SHARC processor, this processor has hardware
support for floating point, in this case you just use the float types
with no impact to speed.

If you are stuck using the ADSP-BF533 blackfin, then you have to learn
fixed point math, which is not trival, or, if you are doing very
common DSP things you can use fixed point math routines already
written. You can call them and build a shell around them, doing high
level type stuff using floating point emulation. That way you get the
benefits of fixed point speed without the high learning curve.

.

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