diff --git a/src/algorithms/libs/volk_gnsssdr/apps/volk_gnsssdr_profile.cc b/src/algorithms/libs/volk_gnsssdr/apps/volk_gnsssdr_profile.cc
index 1098f6a84..4c47f1691 100644
--- a/src/algorithms/libs/volk_gnsssdr/apps/volk_gnsssdr_profile.cc
+++ b/src/algorithms/libs/volk_gnsssdr/apps/volk_gnsssdr_profile.cc
@@ -107,6 +107,9 @@ int main(int argc, char *argv[]) {
//lv_32fc_t sfv = lv_cmake((float)1, (float)2);
//example: VOLK_PROFILE(volk_gnsssdr_8ic_s8ic_multiply_8ic, 1e-4, sfv, 204602, 1000, &results, benchmark_mode, kernel_regex);
+
+ VOLK_PROFILE(volk_gnsssdr_s32f_x2_update_local_carrier_32fc, 1e-4, 0, 7, 1, &results, benchmark_mode, kernel_regex);
+
VOLK_PROFILE(volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc, 1e-4, 0, 7, 1, &results, benchmark_mode, kernel_regex);
VOLK_PROFILE(volk_gnsssdr_8ic_x7_cw_vepl_corr_safe_32fc_x5, 1e-4, 0, 16000, 250, &results, benchmark_mode, kernel_regex);
diff --git a/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc.h b/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc.h
index 48d83c30b..0b5761176 100644
--- a/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc.h
+++ b/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc.h
@@ -1,3 +1,37 @@
+/*!
+ * \file volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc
+ * \brief Volk protokernel: replaces the tracking function for update_local_code
+ * \authors
+ * - Andrés Cecilia, 2014. a.cecilia.luque(at)gmail.com
+ *
+ *
+ * Volk protokernel that replaces the tracking function for update_local_code
+ *
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2014 (see AUTHORS file for a list of contributors)
+ *
+ * GNSS-SDR is a software defined Global Navigation
+ * Satellite Systems receiver
+ *
+ * This file is part of GNSS-SDR.
+ *
+ * GNSS-SDR is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * at your option) any later version.
+ *
+ * GNSS-SDR is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNSS-SDR. If not, see .
+ *
+ * -------------------------------------------------------------------------
+ */
+
#ifndef INCLUDED_volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_u_H
#define INCLUDED_volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_u_H
diff --git a/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_s32f_x2_update_local_carrier_32fc.h b/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_s32f_x2_update_local_carrier_32fc.h
new file mode 100644
index 000000000..9af788861
--- /dev/null
+++ b/src/algorithms/libs/volk_gnsssdr/kernels/volk_gnsssdr/volk_gnsssdr_s32f_x2_update_local_carrier_32fc.h
@@ -0,0 +1,437 @@
+/*!
+ * \file volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc
+ * \brief Volk protokernel: replaces the tracking function for update_local_carrier. Algorithm by Julien Pommier, modified by Andrés Cecilia.
+ * \authors
+ * - Andrés Cecilia, 2014. a.cecilia.luque(at)gmail.com
+ *
+ *
+ * Volk protokernel that replaces the tracking function for update_local_carrier. Algorithm by Julien Pommier, modified by Andrés Cecilia.
+ *
+ * -------------------------------------------------------------------------
+ * Copyright (C) 2007 Julien Pommier
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ * claim that you wrote the original software. If you use this software
+ * in a product, an acknowledgment in the product documentation would be
+ * appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ *(this is the zlib license)
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2014 (see AUTHORS file for a list of contributors)
+ *
+ * GNSS-SDR is a software defined Global Navigation
+ * Satellite Systems receiver
+ *
+ * This file is part of GNSS-SDR.
+ *
+ * GNSS-SDR is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * at your option) any later version.
+ *
+ * GNSS-SDR is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNSS-SDR. If not, see .
+ *
+ * -------------------------------------------------------------------------
+ */
+
+#ifndef INCLUDED_volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc_u_H
+#define INCLUDED_volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc_u_H
+
+#include
+#include
+#include
+
+#ifdef LV_HAVE_SSE2
+#include
+/*!
+ \brief Accumulates the values in the input buffer
+ \param result The accumulated result
+ \param inputBuffer The buffer of data to be accumulated
+ \param num_points The number of values in inputBuffer to be accumulated
+*/
+static inline void volk_gnsssdr_s32f_x2_update_local_carrier_32fc_u_sse2(lv_32fc_t* d_carr_sign, const float phase_rad_init, const float phase_step_rad, unsigned int num_points){
+
+// float* pointer1 = (float*)&phase_rad_init;
+// *pointer1 = 0;
+// float* pointer2 = (float*)&phase_step_rad;
+// *pointer2 = 0.5;
+
+ const unsigned int sse_iters = num_points / 4;
+
+ __m128 _ps_minus_cephes_DP1 = _mm_set1_ps(-0.78515625f);
+ __m128 _ps_minus_cephes_DP2 = _mm_set1_ps(-2.4187564849853515625e-4f);
+ __m128 _ps_minus_cephes_DP3 = _mm_set1_ps(-3.77489497744594108e-8f);
+ __m128 _ps_sign_mask = _mm_set1_ps(-0.f);
+ __m128i _pi32_1 = _mm_set1_epi32(1);
+ __m128i _pi32_inv1 = _mm_set1_epi32(~1);
+ __m128i _pi32_2 = _mm_set1_epi32(2);
+ __m128i _pi32_4 = _mm_set1_epi32(4);
+ __m128 _ps_cephes_FOPI = _mm_set1_ps(1.27323954473516f); // 4 / PI
+ __m128 _ps_sincof_p0 = _mm_set1_ps(-1.9515295891E-4f);
+ __m128 _ps_sincof_p1 = _mm_set1_ps( 8.3321608736E-3f);
+ __m128 _ps_sincof_p2 = _mm_set1_ps(-1.6666654611E-1f);
+ __m128 _ps_coscof_p0 = _mm_set1_ps( 2.443315711809948E-005f);
+ __m128 _ps_coscof_p1 = _mm_set1_ps(-1.388731625493765E-003f);
+ __m128 _ps_coscof_p2 = _mm_set1_ps( 4.166664568298827E-002f);
+ __m128 _ps_1 = _mm_set1_ps(1.f);
+ __m128 _ps_0p5 = _mm_set1_ps(0.5f);
+
+ __m128 phase_step_rad_array = _mm_set1_ps(4*phase_step_rad);
+
+ __m128 phase_rad_array, x, s, c, swap_sign_bit_sin, sign_bit_cos, poly_mask, z, tmp, y, y2, ysin1, ysin2;
+ __m128 xmm1, xmm2, xmm3, sign_bit_sin;
+ __m128i emm0, emm2, emm4;
+ __VOLK_ATTR_ALIGNED(16) float sin_value[4];
+ __VOLK_ATTR_ALIGNED(16) float cos_value[4];
+
+ phase_rad_array = _mm_set_ps (phase_rad_init+3*phase_step_rad, phase_rad_init+2*phase_step_rad, phase_rad_init+phase_step_rad, phase_rad_init);
+
+ for(int i = 0; i < sse_iters; i++)
+ {
+ x = phase_rad_array;
+
+ /* extract the sign bit (upper one) */
+ sign_bit_sin = _mm_and_ps(x, _ps_sign_mask);
+
+ /* take the absolute value */
+ x = _mm_xor_ps(x, sign_bit_sin);
+
+ /* scale by 4/Pi */
+ y = _mm_mul_ps(x, _ps_cephes_FOPI);
+
+ /* store the integer part of y in emm2 */
+ emm2 = _mm_cvttps_epi32(y);
+
+ /* j=(j+1) & (~1) (see the cephes sources) */
+ emm2 = _mm_add_epi32(emm2, _pi32_1);
+ emm2 = _mm_and_si128(emm2, _pi32_inv1);
+ y = _mm_cvtepi32_ps(emm2);
+
+ emm4 = emm2;
+
+ /* get the swap sign flag for the sine */
+ emm0 = _mm_and_si128(emm2, _pi32_4);
+ emm0 = _mm_slli_epi32(emm0, 29);
+ swap_sign_bit_sin = _mm_castsi128_ps(emm0);
+
+ /* get the polynom selection mask for the sine*/
+ emm2 = _mm_and_si128(emm2, _pi32_2);
+ emm2 = _mm_cmpeq_epi32(emm2, _mm_setzero_si128());
+ poly_mask = _mm_castsi128_ps(emm2);
+
+ /* The magic pass: "Extended precision modular arithmetic"
+ x = ((x - y * DP1) - y * DP2) - y * DP3; */
+ xmm1 = _mm_mul_ps(y, _ps_minus_cephes_DP1);
+ xmm2 = _mm_mul_ps(y, _ps_minus_cephes_DP2);
+ xmm3 = _mm_mul_ps(y, _ps_minus_cephes_DP3);
+ x = _mm_add_ps(_mm_add_ps(x, xmm1), _mm_add_ps(xmm2, xmm3));
+
+ emm4 = _mm_sub_epi32(emm4, _pi32_2);
+ emm4 = _mm_andnot_si128(emm4, _pi32_4);
+ emm4 = _mm_slli_epi32(emm4, 29);
+ sign_bit_cos = _mm_castsi128_ps(emm4);
+
+ sign_bit_sin = _mm_xor_ps(sign_bit_sin, swap_sign_bit_sin);
+
+ /* Evaluate the first polynom (0 <= x <= Pi/4) */
+ z = _mm_mul_ps(x,x);
+ y = _ps_coscof_p0;
+ y = _mm_mul_ps(y, z);
+ y = _mm_add_ps(y, _ps_coscof_p1);
+ y = _mm_mul_ps(y, z);
+ y = _mm_add_ps(y, _ps_coscof_p2);
+ y = _mm_mul_ps(y, _mm_mul_ps(z, z));
+ tmp = _mm_mul_ps(z, _ps_0p5);
+ y = _mm_sub_ps(y, tmp);
+ y = _mm_add_ps(y, _ps_1);
+
+ /* Evaluate the second polynom (Pi/4 <= x <= 0) */
+ y2 = _ps_sincof_p0;
+ y2 = _mm_mul_ps(y2, z);
+ y2 = _mm_add_ps(y2, _ps_sincof_p1);
+ y2 = _mm_mul_ps(y2, z);
+ y2 = _mm_add_ps(y2, _ps_sincof_p2);
+ y2 = _mm_mul_ps(y2, _mm_mul_ps(z, x));
+ y2 = _mm_add_ps(y2, x);
+
+ /* select the correct result from the two polynoms */
+ xmm3 = poly_mask;
+ ysin2 = _mm_and_ps(xmm3, y2);
+ ysin1 = _mm_andnot_ps(xmm3, y);
+ y2 = _mm_sub_ps(y2,ysin2);
+ y = _mm_sub_ps(y, ysin1);
+
+ xmm1 = _mm_add_ps(ysin1,ysin2);
+ xmm2 = _mm_add_ps(y,y2);
+
+ /* update the sign */
+ s = _mm_xor_ps(xmm1, sign_bit_sin);
+ c = _mm_xor_ps(xmm2, sign_bit_cos);
+
+ //GNSS-SDR needs to return -sin
+ s = _mm_xor_ps(s, _ps_sign_mask);
+
+ _mm_storeu_ps ((float*)sin_value, s);
+ _mm_storeu_ps ((float*)cos_value, c);
+
+ for(int i = 0; i < 4; i++)
+ {
+ d_carr_sign[i] = lv_cmake(cos_value[i], sin_value[i]);
+ }
+ d_carr_sign += 4;
+
+ phase_rad_array = _mm_add_ps (phase_rad_array, phase_step_rad_array);
+ }
+
+ if (num_points%4!=0)
+ {
+ __VOLK_ATTR_ALIGNED(16) float phase_rad_store[4];
+ _mm_storeu_si128 ((__m128i*)phase_rad_store, phase_rad_array);
+
+ float phase_rad = phase_rad_store[0];
+
+ for(int i = 0; i < num_points%4; i++)
+ {
+ *d_carr_sign = lv_cmake(cos(phase_rad), -sin(phase_rad));
+ d_carr_sign++;
+ phase_rad += phase_step_rad;
+ }
+ }
+}
+#endif /* LV_HAVE_SSE2 */
+
+#ifdef LV_HAVE_GENERIC
+/*!
+ \brief Accumulates the values in the input buffer
+ \param result The accumulated result
+ \param inputBuffer The buffer of data to be accumulated
+ \param num_points The number of values in inputBuffer to be accumulated
+*/
+static inline void volk_gnsssdr_s32f_x2_update_local_carrier_32fc_generic(lv_32fc_t* d_carr_sign, const float phase_rad_init, const float phase_step_rad, unsigned int num_points){
+
+// float* pointer1 = (float*)&phase_rad_init;
+// *pointer1 = 0;
+// float* pointer2 = (float*)&phase_step_rad;
+// *pointer2 = 0.5;
+
+ float phase_rad = phase_rad_init;
+ for(int i = 0; i < num_points; i++)
+ {
+ *d_carr_sign = lv_cmake(cos(phase_rad), -sin(phase_rad));
+ d_carr_sign++;
+ phase_rad += phase_step_rad;
+ }
+}
+#endif /* LV_HAVE_GENERIC */
+#endif /* INCLUDED_volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc_u_H */
+
+
+#ifndef INCLUDED_volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc_a_H
+#define INCLUDED_volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc_a_H
+
+#include
+#include
+#include
+
+#ifdef LV_HAVE_SSE2
+#include
+/*!
+ \brief Accumulates the values in the input buffer
+ \param result The accumulated result
+ \param inputBuffer The buffer of data to be accumulated
+ \param num_points The number of values in inputBuffer to be accumulated
+ */
+static inline void volk_gnsssdr_s32f_x2_update_local_carrier_32fc_a_sse2(lv_32fc_t* d_carr_sign, const float phase_rad_init, const float phase_step_rad, unsigned int num_points){
+
+// float* pointer1 = (float*)&phase_rad_init;
+// *pointer1 = 0;
+// float* pointer2 = (float*)&phase_step_rad;
+// *pointer2 = 0.5;
+
+ const unsigned int sse_iters = num_points / 4;
+
+ __m128 _ps_minus_cephes_DP1 = _mm_set1_ps(-0.78515625f);
+ __m128 _ps_minus_cephes_DP2 = _mm_set1_ps(-2.4187564849853515625e-4f);
+ __m128 _ps_minus_cephes_DP3 = _mm_set1_ps(-3.77489497744594108e-8f);
+ __m128 _ps_sign_mask = _mm_set1_ps(-0.f);
+ __m128i _pi32_1 = _mm_set1_epi32(1);
+ __m128i _pi32_inv1 = _mm_set1_epi32(~1);
+ __m128i _pi32_2 = _mm_set1_epi32(2);
+ __m128i _pi32_4 = _mm_set1_epi32(4);
+ __m128 _ps_cephes_FOPI = _mm_set1_ps(1.27323954473516f); // 4 / PI
+ __m128 _ps_sincof_p0 = _mm_set1_ps(-1.9515295891E-4f);
+ __m128 _ps_sincof_p1 = _mm_set1_ps( 8.3321608736E-3f);
+ __m128 _ps_sincof_p2 = _mm_set1_ps(-1.6666654611E-1f);
+ __m128 _ps_coscof_p0 = _mm_set1_ps( 2.443315711809948E-005f);
+ __m128 _ps_coscof_p1 = _mm_set1_ps(-1.388731625493765E-003f);
+ __m128 _ps_coscof_p2 = _mm_set1_ps( 4.166664568298827E-002f);
+ __m128 _ps_1 = _mm_set1_ps(1.f);
+ __m128 _ps_0p5 = _mm_set1_ps(0.5f);
+
+ __m128 phase_step_rad_array = _mm_set1_ps(4*phase_step_rad);
+
+ __m128 phase_rad_array, x, s, c, swap_sign_bit_sin, sign_bit_cos, poly_mask, z, tmp, y, y2, ysin1, ysin2;
+ __m128 xmm1, xmm2, xmm3, sign_bit_sin;
+ __m128i emm0, emm2, emm4;
+ __VOLK_ATTR_ALIGNED(16) float sin_value[4];
+ __VOLK_ATTR_ALIGNED(16) float cos_value[4];
+
+ phase_rad_array = _mm_set_ps (phase_rad_init+3*phase_step_rad, phase_rad_init+2*phase_step_rad, phase_rad_init+phase_step_rad, phase_rad_init);
+
+ for(int i = 0; i < sse_iters; i++)
+ {
+ x = phase_rad_array;
+
+ /* extract the sign bit (upper one) */
+ sign_bit_sin = _mm_and_ps(x, _ps_sign_mask);
+
+ /* take the absolute value */
+ x = _mm_xor_ps(x, sign_bit_sin);
+
+ /* scale by 4/Pi */
+ y = _mm_mul_ps(x, _ps_cephes_FOPI);
+
+ /* store the integer part of y in emm2 */
+ emm2 = _mm_cvttps_epi32(y);
+
+ /* j=(j+1) & (~1) (see the cephes sources) */
+ emm2 = _mm_add_epi32(emm2, _pi32_1);
+ emm2 = _mm_and_si128(emm2, _pi32_inv1);
+ y = _mm_cvtepi32_ps(emm2);
+
+ emm4 = emm2;
+
+ /* get the swap sign flag for the sine */
+ emm0 = _mm_and_si128(emm2, _pi32_4);
+ emm0 = _mm_slli_epi32(emm0, 29);
+ swap_sign_bit_sin = _mm_castsi128_ps(emm0);
+
+ /* get the polynom selection mask for the sine*/
+ emm2 = _mm_and_si128(emm2, _pi32_2);
+ emm2 = _mm_cmpeq_epi32(emm2, _mm_setzero_si128());
+ poly_mask = _mm_castsi128_ps(emm2);
+
+ /* The magic pass: "Extended precision modular arithmetic"
+ x = ((x - y * DP1) - y * DP2) - y * DP3; */
+ xmm1 = _mm_mul_ps(y, _ps_minus_cephes_DP1);
+ xmm2 = _mm_mul_ps(y, _ps_minus_cephes_DP2);
+ xmm3 = _mm_mul_ps(y, _ps_minus_cephes_DP3);
+ x = _mm_add_ps(_mm_add_ps(x, xmm1), _mm_add_ps(xmm2, xmm3));
+
+ emm4 = _mm_sub_epi32(emm4, _pi32_2);
+ emm4 = _mm_andnot_si128(emm4, _pi32_4);
+ emm4 = _mm_slli_epi32(emm4, 29);
+ sign_bit_cos = _mm_castsi128_ps(emm4);
+
+ sign_bit_sin = _mm_xor_ps(sign_bit_sin, swap_sign_bit_sin);
+
+ /* Evaluate the first polynom (0 <= x <= Pi/4) */
+ z = _mm_mul_ps(x,x);
+ y = _ps_coscof_p0;
+ y = _mm_mul_ps(y, z);
+ y = _mm_add_ps(y, _ps_coscof_p1);
+ y = _mm_mul_ps(y, z);
+ y = _mm_add_ps(y, _ps_coscof_p2);
+ y = _mm_mul_ps(y, _mm_mul_ps(z, z));
+ tmp = _mm_mul_ps(z, _ps_0p5);
+ y = _mm_sub_ps(y, tmp);
+ y = _mm_add_ps(y, _ps_1);
+
+ /* Evaluate the second polynom (Pi/4 <= x <= 0) */
+ y2 = _ps_sincof_p0;
+ y2 = _mm_mul_ps(y2, z);
+ y2 = _mm_add_ps(y2, _ps_sincof_p1);
+ y2 = _mm_mul_ps(y2, z);
+ y2 = _mm_add_ps(y2, _ps_sincof_p2);
+ y2 = _mm_mul_ps(y2, _mm_mul_ps(z, x));
+ y2 = _mm_add_ps(y2, x);
+
+ /* select the correct result from the two polynoms */
+ xmm3 = poly_mask;
+ ysin2 = _mm_and_ps(xmm3, y2);
+ ysin1 = _mm_andnot_ps(xmm3, y);
+ y2 = _mm_sub_ps(y2,ysin2);
+ y = _mm_sub_ps(y, ysin1);
+
+ xmm1 = _mm_add_ps(ysin1,ysin2);
+ xmm2 = _mm_add_ps(y,y2);
+
+ /* update the sign */
+ s = _mm_xor_ps(xmm1, sign_bit_sin);
+ c = _mm_xor_ps(xmm2, sign_bit_cos);
+
+ //GNSS-SDR needs to return -sin
+ s = _mm_xor_ps(s, _ps_sign_mask);
+
+ _mm_store_ps ((float*)sin_value, s);
+ _mm_store_ps ((float*)cos_value, c);
+
+ for(int i = 0; i < 4; i++)
+ {
+ d_carr_sign[i] = lv_cmake(cos_value[i], sin_value[i]);
+ }
+ d_carr_sign += 4;
+
+ phase_rad_array = _mm_add_ps (phase_rad_array, phase_step_rad_array);
+ }
+
+ if (num_points%4!=0)
+ {
+ __VOLK_ATTR_ALIGNED(16) float phase_rad_store[4];
+ _mm_store_si128 ((__m128i*)phase_rad_store, phase_rad_array);
+
+ float phase_rad = phase_rad_store[0];
+
+ for(int i = 0; i < num_points%4; i++)
+ {
+ *d_carr_sign = lv_cmake(cos(phase_rad), -sin(phase_rad));
+ d_carr_sign++;
+ phase_rad += phase_step_rad;
+ }
+ }
+}
+#endif /* LV_HAVE_SSE2 */
+
+#ifdef LV_HAVE_GENERIC
+/*!
+ \brief Accumulates the values in the input buffer
+ \param result The accumulated result
+ \param inputBuffer The buffer of data to be accumulated
+ \param num_points The number of values in inputBuffer to be accumulated
+ */
+static inline void volk_gnsssdr_s32f_x2_update_local_carrier_32fc_a_generic(lv_32fc_t* d_carr_sign, const float phase_rad_init, const float phase_step_rad, unsigned int num_points){
+
+// float* pointer1 = (float*)&phase_rad_init;
+// *pointer1 = 0;
+// float* pointer2 = (float*)&phase_step_rad;
+// *pointer2 = 0.5;
+
+ float phase_rad = phase_rad_init;
+ for(int i = 0; i < num_points; i++)
+ {
+ *d_carr_sign = lv_cmake(cos(phase_rad), -sin(phase_rad));
+ d_carr_sign++;
+ phase_rad += phase_step_rad;
+ }
+}
+#endif /* LV_HAVE_GENERIC */
+#endif /* INCLUDED_volk_gnsssdr_32fc_s32f_x2_update_local_carrier_32fc_a_H */
+
diff --git a/src/algorithms/libs/volk_gnsssdr/lib/testqa.cc b/src/algorithms/libs/volk_gnsssdr/lib/testqa.cc
index 3057275d5..45397c87e 100644
--- a/src/algorithms/libs/volk_gnsssdr/lib/testqa.cc
+++ b/src/algorithms/libs/volk_gnsssdr/lib/testqa.cc
@@ -68,6 +68,9 @@ VOLK_RUN_TESTS(volk_gnsssdr_8ic_x7_cw_vepl_corr_32fc_x5, 1e-4, 0, 20462, 1);
VOLK_RUN_TESTS(volk_gnsssdr_8ic_x7_cw_vepl_corr_TEST_32fc_x5, 1e-4, 0, 20462, 1);
VOLK_RUN_TESTS(volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc, 1e-4, 0, 20462, 1);
+VOLK_RUN_TESTS(volk_gnsssdr_s32f_x2_update_local_carrier_32fc, 1e-4, 0, 20462, 1);
+
+
diff --git a/src/algorithms/tracking/gnuradio_blocks/galileo_e1_dll_pll_veml_tracking_cc.cc b/src/algorithms/tracking/gnuradio_blocks/galileo_e1_dll_pll_veml_tracking_cc.cc
index df3d2e44b..88a6b5f61 100644
--- a/src/algorithms/tracking/gnuradio_blocks/galileo_e1_dll_pll_veml_tracking_cc.cc
+++ b/src/algorithms/tracking/gnuradio_blocks/galileo_e1_dll_pll_veml_tracking_cc.cc
@@ -272,7 +272,7 @@ void galileo_e1_dll_pll_veml_tracking_cc::update_local_code()
epl_loop_length_samples = d_current_prn_length_samples + very_early_late_spc_samples*2;
- volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_manual(d_very_early_code, (float) d_very_early_late_spc_chips, (float) code_length_half_chips, (float) code_phase_step_half_chips, (float) tcode_half_chips, d_ca_code, epl_loop_length_samples, "generic");
+ //volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_manual(d_very_early_code, (float) d_very_early_late_spc_chips, (float) code_length_half_chips, (float) code_phase_step_half_chips, (float) tcode_half_chips, d_ca_code, epl_loop_length_samples, "generic");
volk_gnsssdr_32fc_s32f_x4_update_local_code_32fc_manual(d_very_early_code, (float) d_very_early_late_spc_chips, (float) code_length_half_chips, (float) code_phase_step_half_chips, (float) tcode_half_chips, d_ca_code, epl_loop_length_samples, "u_sse4_1");
@@ -297,11 +297,16 @@ void galileo_e1_dll_pll_veml_tracking_cc::update_local_carrier()
phase_step_rad = (float)GPS_TWO_PI*d_carrier_doppler_hz / (float)d_fs_in;
// Initialize the carrier phase with the remanent carrier phase of the K-2 loop
phase_rad = d_rem_carr_phase_rad;
- for(int i = 0; i < d_current_prn_length_samples; i++)
- {
- d_carr_sign[i] = gr_complex(cos(phase_rad), -sin(phase_rad));
- phase_rad += phase_step_rad;
- }
+
+ //volk_gnsssdr_s32f_x2_update_local_carrier_32fc_manual(d_carr_sign, phase_rad, phase_step_rad, d_current_prn_length_samples, "generic");
+
+ volk_gnsssdr_s32f_x2_update_local_carrier_32fc_manual(d_carr_sign, phase_rad, phase_step_rad, d_current_prn_length_samples, "u_sse2");
+
+// for(int i = 0; i < d_current_prn_length_samples; i++)
+// {
+// d_carr_sign[i] = gr_complex(cos(phase_rad), -sin(phase_rad));
+// phase_rad += phase_step_rad;
+// }
}
galileo_e1_dll_pll_veml_tracking_cc::~galileo_e1_dll_pll_veml_tracking_cc()