GNU Radio 3.6.4.1 C++ API
volk_32f_x2_add_32f_u.h
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1 #ifndef INCLUDED_volk_32f_x2_add_32f_u_H
2 #define INCLUDED_volk_32f_x2_add_32f_u_H
3 
4 #include <inttypes.h>
5 #include <stdio.h>
6 
7 #ifdef LV_HAVE_SSE
8 #include <xmmintrin.h>
9 /*!
10  \brief Adds the two input vectors and store their results in the third vector
11  \param cVector The vector where the results will be stored
12  \param aVector One of the vectors to be added
13  \param bVector One of the vectors to be added
14  \param num_points The number of values in aVector and bVector to be added together and stored into cVector
15 */
16 static inline void volk_32f_x2_add_32f_u_sse(float* cVector, const float* aVector, const float* bVector, unsigned int num_points){
17  unsigned int number = 0;
18  const unsigned int quarterPoints = num_points / 4;
19 
20  float* cPtr = cVector;
21  const float* aPtr = aVector;
22  const float* bPtr= bVector;
23 
24  __m128 aVal, bVal, cVal;
25  for(;number < quarterPoints; number++){
26 
27  aVal = _mm_loadu_ps(aPtr);
28  bVal = _mm_loadu_ps(bPtr);
29 
30  cVal = _mm_add_ps(aVal, bVal);
31 
32  _mm_storeu_ps(cPtr,cVal); // Store the results back into the C container
33 
34  aPtr += 4;
35  bPtr += 4;
36  cPtr += 4;
37  }
38 
39  number = quarterPoints * 4;
40  for(;number < num_points; number++){
41  *cPtr++ = (*aPtr++) + (*bPtr++);
42  }
43 }
44 #endif /* LV_HAVE_SSE */
45 
46 #ifdef LV_HAVE_GENERIC
47 /*!
48  \brief Adds the two input vectors and store their results in the third vector
49  \param cVector The vector where the results will be stored
50  \param aVector One of the vectors to be added
51  \param bVector One of the vectors to be added
52  \param num_points The number of values in aVector and bVector to be added together and stored into cVector
53 */
54 static inline void volk_32f_x2_add_32f_u_generic(float* cVector, const float* aVector, const float* bVector, unsigned int num_points){
55  float* cPtr = cVector;
56  const float* aPtr = aVector;
57  const float* bPtr= bVector;
58  unsigned int number = 0;
59 
60  for(number = 0; number < num_points; number++){
61  *cPtr++ = (*aPtr++) + (*bPtr++);
62  }
63 }
64 #endif /* LV_HAVE_GENERIC */
65 
66 #endif /* INCLUDED_volk_32f_x2_add_32f_u_H */