optimization of the code "real FIR" in inline

youir youir

hello,

I want to optimize my code real FIR, passing by the INLINE but I find a factor 4 between release and inline and that do not give the same thing as the code of Texas in the complex FIR, here is my code which I want to optimize to have factor 10 like Texas between INLINE and RELEASE:

#ifdef _INLINE_IQMATH
# include "IQmath_inline.h"
#else
# include "IQmath.h"
#endif

#ifndef _TMS320C6X
#define restrict
#endif

#include "math.h"

void FIR_IQ(const _iq * x,const _iq * h, _iq * restrict r, int nh, int nr)
{

int i,j;

   for (i = 0; i < nr; i++)
   {
     r[i]=0;

      for (j = 0; j < nh; j++)
      {
         r[i] += _IQmpy(h[j], x[i-j]);
      }
   }
}

help me please to solve this problem.

thanks

youir

over 16 years ago

0 desouza over 16 years ago

TI__Guru**** 169794 points

Youir,

I am not an expert in optimization, however I would suggest a good reference for optimization on the C6000 family of devices that can be very useful for your case (I assume you are using this family due to the #define clause above).

http://focus.ti.com/dsp/docs/dspsupporttechdocsc.tsp?sectionId=3&tabId=409&abstractName=spra666

The document also covers optimizations that go beyond the scope of the compiler alone, therefore it is definitely a good reading.

Hope this helps,

Rafael

0 youir youir over 16 years ago in reply to desouza

Prodigy 90 points

thank you Rafael I will read this document [;)]

youir

Code Composer Studio™︎

Code Composer Studio forum

optimization of the code "real FIR" in inline