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CMSIS-DSP/DSP_Lib_TestSuite/RefLibs/src/StatisticsFunctions/power.c

62 lines
836 B
C

#include "ref.h"
void ref_power_f32(
float32_t * pSrc,
uint32_t blockSize,
float32_t * pResult)
{
uint32_t i;
float32_t sumsq=0;
for(i=0;i<blockSize;i++)
{
sumsq += pSrc[i] * pSrc[i];
}
*pResult = sumsq;
}
void ref_power_q31(
q31_t * pSrc,
uint32_t blockSize,
q63_t * pResult)
{
uint32_t i;
q63_t sumsq=0;
for(i=0;i<blockSize;i++)
{
sumsq += ((q63_t)pSrc[i] * pSrc[i]) >> 14;
}
*pResult = sumsq;
}
void ref_power_q15(
q15_t * pSrc,
uint32_t blockSize,
q63_t * pResult)
{
uint32_t i;
q63_t sumsq=0;
for(i=0;i<blockSize;i++)
{
sumsq += (q63_t)pSrc[i] * pSrc[i];
}
*pResult = sumsq;
}
void ref_power_q7(
q7_t * pSrc,
uint32_t blockSize,
q31_t * pResult)
{
uint32_t i;
q31_t sumsq=0;
for(i=0;i<blockSize;i++)
{
sumsq += (q31_t)pSrc[i] * pSrc[i];
}
*pResult = sumsq;
}