97#ifndef INCLUDED_volk_32fc_x2_divide_32fc_u_H
98#define INCLUDED_volk_32fc_x2_divide_32fc_u_H
105#ifdef LV_HAVE_GENERIC
110 unsigned int num_points)
116 for (
unsigned int number = 0; number < num_points; number++) {
117 *cPtr++ = (*aPtr++) / (*bPtr++);
124#include <pmmintrin.h>
130 unsigned int num_points)
138 unsigned int number = 0;
139 const unsigned int quarterPoints = num_points / 4;
141 __m128 num01, num23, den01, den23, norm, result;
146 for (; number < quarterPoints; number++) {
172 for (; number < num_points; number++) {
183#include <immintrin.h>
189 unsigned int num_points)
197 unsigned int number = 0;
198 const unsigned int quarterPoints = num_points / 4;
200 __m256 num, denum, mul_conj, sq, mag_sq, mag_sq_un, div;
205 for (; number < quarterPoints; number++) {
206 num = _mm256_loadu_ps(
208 denum = _mm256_loadu_ps(
211 sq = _mm256_mul_ps(denum, denum);
212 mag_sq_un = _mm256_hadd_ps(
214 mag_sq = _mm256_permute_ps(mag_sq_un, 0xd8);
217 div = _mm256_div_ps(mul_conj, mag_sq);
219 _mm256_storeu_ps((
float*)c, div);
226 number = quarterPoints * 4;
228 for (; number < num_points; number++) {
229 *c++ = (*a++) / (*b++);
238#ifndef INCLUDED_volk_32fc_x2_divide_32fc_a_H
239#define INCLUDED_volk_32fc_x2_divide_32fc_a_H
247#include <pmmintrin.h>
253 unsigned int num_points)
261 unsigned int number = 0;
262 const unsigned int quarterPoints = num_points / 4;
264 __m128 num01, num23, den01, den23, norm, result;
269 for (; number < quarterPoints; number++) {
296 for (; number < num_points; number++) {
306#include <immintrin.h>
312 unsigned int num_points)
328 const unsigned int eigthPoints = num_points / 8;
330 __m256 num01, num23, denum01, denum23, complex_result, result0, result1;
332 for (
unsigned int number = 0; number < eigthPoints; number++) {
334 num01 = _mm256_load_ps((
float*)a);
335 denum01 = _mm256_load_ps((
float*)b);
341 num23 = _mm256_load_ps((
float*)a);
342 denum23 = _mm256_load_ps((
float*)b);
347 complex_result = _mm256_hadd_ps(_mm256_mul_ps(denum01, denum01),
348 _mm256_mul_ps(denum23, denum23));
350 denum01 = _mm256_shuffle_ps(complex_result, complex_result, 0x50);
351 denum23 = _mm256_shuffle_ps(complex_result, complex_result, 0xfa);
353 result0 = _mm256_div_ps(num01, denum01);
354 result1 = _mm256_div_ps(num23, denum23);
356 _mm256_store_ps((
float*)c, result0);
358 _mm256_store_ps((
float*)c, result1);
373 unsigned int num_points)
379 float32x4x2_t aVal, bVal, cVal;
380 float32x4_t bAbs, bAbsInv;
382 const unsigned int quarterPoints = num_points / 4;
383 unsigned int number = 0;
384 for (; number < quarterPoints; number++) {
385 aVal = vld2q_f32((
const float*)(aPtr));
386 bVal = vld2q_f32((
const float*)(bPtr));
392 bAbs = vmulq_f32(bVal.val[0], bVal.val[0]);
393 bAbs = vmlaq_f32(bAbs, bVal.val[1], bVal.val[1]);
395 bAbsInv = vrecpeq_f32(bAbs);
396 bAbsInv = vmulq_f32(bAbsInv, vrecpsq_f32(bAbsInv, bAbs));
397 bAbsInv = vmulq_f32(bAbsInv, vrecpsq_f32(bAbsInv, bAbs));
399 cVal.val[0] = vmulq_f32(aVal.val[0], bVal.val[0]);
400 cVal.val[0] = vmlaq_f32(cVal.val[0], aVal.val[1], bVal.val[1]);
401 cVal.val[0] = vmulq_f32(cVal.val[0], bAbsInv);
403 cVal.val[1] = vmulq_f32(aVal.val[1], bVal.val[0]);
404 cVal.val[1] = vmlsq_f32(cVal.val[1], aVal.val[0], bVal.val[1]);
405 cVal.val[1] = vmulq_f32(cVal.val[1], bAbsInv);
407 vst2q_f32((
float*)(cPtr), cVal);
411 for (number = quarterPoints * 4; number < num_points; number++) {
412 *cPtr++ = (*aPtr++) / (*bPtr++);