mirror of https://github.com/gnss-sdr/gnss-sdr
1573 lines
73 KiB
C
1573 lines
73 KiB
C
/*!
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* \file volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3.h
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* \brief Volk protokernel: performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation with 32 bits vectors using different methods: inside u_sse4_1_first there is one method, inside u_sse4_1_second there is another... This protokernel has been created to test the performance of different methods.
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* \authors <ul>
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* <li> Andrés Cecilia, 2014. a.cecilia.luque(at)gmail.com
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* </ul>
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*
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* Volk protokernel that performs the carrier wipe-off mixing and the
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* Early, Prompt, and Late correlation with 32 bits vectors (16 bits the
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* real part and 16 bits the imaginary part):
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* - The carrier wipe-off is done by multiplying the input signal by the
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* carrier (multiplication of 32 bits vectors) It returns the input
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* signal in base band (BB)
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* - Early values are calculated by multiplying the input signal in BB by the
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* early code (multiplication of 32 bits vectors), accumulating the results
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* - Prompt values are calculated by multiplying the input signal in BB by the
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* prompt code (multiplication of 32 bits vectors), accumulating the results
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* - Late values are calculated by multiplying the input signal in BB by the
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* late code (multiplication of 32 bits vectors), accumulating the results
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2014 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef INCLUDED_gnsssdr_volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_H
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#define INCLUDED_gnsssdr_volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_H
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#include <inttypes.h>
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#include <stdio.h>
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#include <volk_gnsssdr/volk_gnsssdr_complex.h>
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#include <float.h>
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#include <string.h>
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#ifdef LV_HAVE_SSE4_1
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#include <smmintrin.h>
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/*!
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\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
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\param input The input signal input
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\param carrier The carrier signal input
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\param E_code Early PRN code replica input
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\param P_code Early PRN code replica input
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\param L_code Early PRN code replica input
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\param E_out Early correlation output
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\param P_out Early correlation output
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\param L_out Early correlation output
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\param num_points The number of complex values in vectors
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*/
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static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_sse4_1_first(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
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{
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const unsigned int sse_iters = num_points / 4;
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__m128i x, y, yaux, yl, yh, tmp1, tmp2, z, bb_signal_sample, bb_signal_sample_suffled;
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__m128 z_ps_1, z_ps_2, z_E, z_P, z_L;
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__m128i z_i_1, z_i_2;
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lv_32fc_t dotProduct_E;
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lv_32fc_t dotProduct_P;
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lv_32fc_t dotProduct_L;
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z_E = _mm_setzero_ps();
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z_P = _mm_setzero_ps();
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z_L = _mm_setzero_ps();
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const lv_16sc_t* _input = input;
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const lv_16sc_t* _carrier = carrier;
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const lv_16sc_t* _E_code = E_code;
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const lv_16sc_t* _P_code = P_code;
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const lv_16sc_t* _L_code = L_code;
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dotProduct_E = 0;
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dotProduct_P = 0;
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dotProduct_L = 0;
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if (sse_iters>0)
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{
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for(unsigned int number = 0;number < sse_iters; number++)
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{
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//Perform the carrier wipe-off
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x = _mm_lddqu_si128((__m128i*)_input); // Load the ar + ai, br + bi as ar,ai,br,bi
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y = _mm_lddqu_si128((__m128i*)_carrier); // Load the cr + ci, dr + di as cr,ci,dr,di
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// Load yl with cr,cr,dr,dr
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// Load yh with ci,ci,di,di
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yaux = _mm_shuffle_epi8 (y, _mm_set_epi8 (15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0));
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yl = _mm_unpacklo_epi16(yaux, yaux);
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yh = _mm_unpackhi_epi16(yaux, yaux);
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tmp1 = _mm_mullo_epi16(x,yl); // tmp1 = ar*cr,ai*cr,br*dr,bi*dr
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x = _mm_shuffle_epi8 (x, _mm_set_epi8 (13, 12, 15, 14, 9, 8, 11, 10, 5, 4, 7, 6, 1, 0, 3, 2)); // Re-arrange x to be ai,ar,bi,br
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tmp2 = _mm_mullo_epi16(x,yh); // tmp2 = ai*ci,ar*ci,bi*di,br*di
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tmp2 = _mm_mullo_epi16(tmp2,_mm_set_epi16 (1, -1, 1, -1, 1, -1, 1, -1));
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bb_signal_sample = _mm_add_epi16(tmp1,tmp2); // ar*cr-ai*ci, ai*cr+ar*ci, br*dr-bi*di, bi*dr+br*di
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bb_signal_sample_suffled = _mm_shuffle_epi8 (bb_signal_sample, _mm_set_epi8 (13, 12, 15, 14, 9, 8, 11, 10, 5, 4, 7, 6, 1, 0, 3, 2)); // Re-arrange bb_signal_sample to be ai,ar,bi,br
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// correlation E,P,L (3x vector scalar product)
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// Early
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y = _mm_lddqu_si128((__m128i*)_E_code); // Load the cr + ci, dr + di as cr,ci,dr,di
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yaux = _mm_shuffle_epi8 (y, _mm_set_epi8 (15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0));
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yl = _mm_unpacklo_epi16(yaux, yaux);
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yh = _mm_unpackhi_epi16(yaux, yaux);
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tmp1 = _mm_mullo_epi16(bb_signal_sample,yl); // tmp1 = ar*cr,ai*cr,br*dr,bi*dr
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tmp2 = _mm_mullo_epi16(bb_signal_sample_suffled,yh); // tmp2 = ai*ci,ar*ci,bi*di,br*di
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tmp2 = _mm_mullo_epi16(tmp2,_mm_set_epi16 (1, -1, 1, -1, 1, -1, 1, -1));
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z = _mm_add_epi16(tmp1,tmp2); // ar*cr-ai*ci, ai*cr+ar*ci, br*dr-bi*di, bi*dr+br*di
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z_i_1 = _mm_cvtepi16_epi32(z);
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z_ps_1 = _mm_cvtepi32_ps(z_i_1);
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z = _mm_srli_si128 (z, 8);
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z_i_2 = _mm_cvtepi16_epi32(z);
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z_ps_2 = _mm_cvtepi32_ps(z_i_2);
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z_E = _mm_add_ps(z_E, z_ps_1); // Add the complex multiplication results together
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z_E = _mm_add_ps(z_E, z_ps_2); // Add the complex multiplication results together
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// Prompt
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y = _mm_lddqu_si128((__m128i*)_P_code); // Load the cr + ci, dr + di as cr,ci,dr,di
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yaux = _mm_shuffle_epi8 (y, _mm_set_epi8 (15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0));
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yl = _mm_unpacklo_epi16(yaux, yaux);
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yh = _mm_unpackhi_epi16(yaux, yaux);
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tmp1 = _mm_mullo_epi16(bb_signal_sample,yl); // tmp1 = ar*cr,ai*cr,br*dr,bi*dr
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tmp2 = _mm_mullo_epi16(bb_signal_sample_suffled,yh); // tmp2 = ai*ci,ar*ci,bi*di,br*di
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tmp2 = _mm_mullo_epi16(tmp2,_mm_set_epi16 (1, -1, 1, -1, 1, -1, 1, -1));
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z = _mm_add_epi16(tmp1,tmp2); // ar*cr-ai*ci, ai*cr+ar*ci, br*dr-bi*di, bi*dr+br*di
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z_i_1 = _mm_cvtepi16_epi32(z);
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z_ps_1 = _mm_cvtepi32_ps(z_i_1);
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z = _mm_srli_si128 (z, 8);
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z_i_2 = _mm_cvtepi16_epi32(z);
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z_ps_2 = _mm_cvtepi32_ps(z_i_2);
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z_P = _mm_add_ps(z_P, z_ps_1); // Add the complex multiplication results together
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z_P = _mm_add_ps(z_P, z_ps_2); // Add the complex multiplication results together
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// Late
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y = _mm_lddqu_si128((__m128i*)_L_code); // Load the cr + ci, dr + di as cr,ci,dr,di
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yaux = _mm_shuffle_epi8 (y, _mm_set_epi8 (15, 14, 11, 10, 7, 6, 3, 2, 13, 12, 9, 8, 5, 4, 1, 0));
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yl = _mm_unpacklo_epi16(yaux, yaux);
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yh = _mm_unpackhi_epi16(yaux, yaux);
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tmp1 = _mm_mullo_epi16(bb_signal_sample,yl); // tmp1 = ar*cr,ai*cr,br*dr,bi*dr
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tmp2 = _mm_mullo_epi16(bb_signal_sample_suffled,yh); // tmp2 = ai*ci,ar*ci,bi*di,br*di
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tmp2 = _mm_mullo_epi16(tmp2,_mm_set_epi16 (1, -1, 1, -1, 1, -1, 1, -1));
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z = _mm_add_epi16(tmp1,tmp2); // ar*cr-ai*ci, ai*cr+ar*ci, br*dr-bi*di, bi*dr+br*di
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z_i_1 = _mm_cvtepi16_epi32(z);
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z_ps_1 = _mm_cvtepi32_ps(z_i_1);
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z = _mm_srli_si128 (z, 8);
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z_i_2 = _mm_cvtepi16_epi32(z);
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z_ps_2 = _mm_cvtepi32_ps(z_i_2);
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z_L = _mm_add_ps(z_L, z_ps_1); // Add the complex multiplication results together
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z_L = _mm_add_ps(z_L, z_ps_2); // Add the complex multiplication results together
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_input += 4;
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_carrier += 4;
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_E_code += 4;
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_L_code += 4;
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_P_code += 4;
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}
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__VOLK_ATTR_ALIGNED(16) lv_32fc_t dotProductVector_E[2];
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__VOLK_ATTR_ALIGNED(16) lv_32fc_t dotProductVector_P[2];
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__VOLK_ATTR_ALIGNED(16) lv_32fc_t dotProductVector_L[2];
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_mm_storeu_ps((float*)dotProductVector_E,z_E); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)dotProductVector_P,z_P); // Store the results back into the dot product vector
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_mm_storeu_ps((float*)dotProductVector_L,z_L); // Store the results back into the dot product vector
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dotProduct_E = ( dotProductVector_E[0] + dotProductVector_E[1] );
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dotProduct_P = ( dotProductVector_P[0] + dotProductVector_P[1] );
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dotProduct_L = ( dotProductVector_L[0] + dotProductVector_L[1] );
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}
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for(unsigned int i=0; i < num_points%4; ++i)
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{
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dotProduct_E += (lv_32fc_t)((*_input) * (*_E_code++)*(*_carrier));
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dotProduct_P += (lv_32fc_t)((*_input) * (*_P_code++)*(*_carrier));
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dotProduct_L += (lv_32fc_t)((*_input++) * (*_L_code++)*(*_carrier++));
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}
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*E_out = dotProduct_E;
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*P_out = dotProduct_P;
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*L_out = dotProduct_L;
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}
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#endif /* LV_HAVE_SSE4_1 */
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#ifdef LV_HAVE_SSE4_1
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#include <smmintrin.h>
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/*!
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\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
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\param input The input signal input
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\param carrier The carrier signal input
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\param E_code Early PRN code replica input
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\param P_code Early PRN code replica input
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\param L_code Early PRN code replica input
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\param E_out Early correlation output
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\param P_out Early correlation output
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\param L_out Early correlation output
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\param num_points The number of complex values in vectors
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*/
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static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_sse4_1_second(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
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{
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const unsigned int sse_iters = num_points / 8;
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__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
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__m128i mult1, realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output;
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__m128 real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc;
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__m128i real_output_i_1, real_output_i_2, imag_output_i_1, imag_output_i_2;
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__m128 real_output_ps_1, real_output_ps_2, imag_output_ps_1, imag_output_ps_2;
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float E_out_real = 0;
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float E_out_imag = 0;
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float P_out_real = 0;
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float P_out_imag = 0;
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float L_out_real = 0;
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float L_out_imag = 0;
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const lv_16sc_t* input_ptr = input;
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const lv_16sc_t* carrier_ptr = carrier;
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const lv_16sc_t* E_code_ptr = E_code;
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lv_32fc_t* E_out_ptr = E_out;
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const lv_16sc_t* L_code_ptr = L_code;
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lv_32fc_t* L_out_ptr = L_out;
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const lv_16sc_t* P_code_ptr = P_code;
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lv_32fc_t* P_out_ptr = P_out;
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*E_out_ptr = 0;
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*P_out_ptr = 0;
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*L_out_ptr = 0;
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mult1 = _mm_set_epi8(0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255);
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real_E_code_acc = _mm_setzero_ps();
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imag_E_code_acc = _mm_setzero_ps();
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real_P_code_acc = _mm_setzero_ps();
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imag_P_code_acc = _mm_setzero_ps();
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real_L_code_acc = _mm_setzero_ps();
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imag_L_code_acc = _mm_setzero_ps();
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if (sse_iters>0)
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{
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for(unsigned int number = 0;number < sse_iters; number++){
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//Perform the carrier wipe-off
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x1 = _mm_lddqu_si128((__m128i*)input_ptr);
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input_ptr += 4;
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x2 = _mm_lddqu_si128((__m128i*)input_ptr);
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y1 = _mm_lddqu_si128((__m128i*)carrier_ptr);
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carrier_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)carrier_ptr);
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imagx = _mm_srli_si128 (x1, 2);
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imagx = _mm_blend_epi16 (x2, imagx, 85);
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realx = _mm_slli_si128 (x2, 2);
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realx = _mm_blend_epi16 (realx, x1, 85);
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imagy = _mm_srli_si128 (y1, 2);
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imagy = _mm_blend_epi16 (y2, imagy, 85);
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realy = _mm_slli_si128 (y2, 2);
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realy = _mm_blend_epi16 (realy, y1, 85);
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realx_mult_realy = _mm_mullo_epi16 (realx, realy);
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imagx_mult_imagy = _mm_mullo_epi16 (imagx, imagy);
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realx_mult_imagy = _mm_mullo_epi16 (realx, imagy);
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imagx_mult_realy = _mm_mullo_epi16 (imagx, realy);
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real_bb_signal_sample = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
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imag_bb_signal_sample = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
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//Get early values
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y1 = _mm_lddqu_si128((__m128i*)E_code_ptr);
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E_code_ptr += 4;
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y2 = _mm_lddqu_si128((__m128i*)E_code_ptr);
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imagy = _mm_srli_si128 (y1, 2);
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imagy = _mm_blend_epi16 (y2, imagy, 85);
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realy = _mm_slli_si128 (y2, 2);
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realy = _mm_blend_epi16 (realy, y1, 85);
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realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
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imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
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realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
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imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
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real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
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imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
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real_output_i_1 = _mm_cvtepi16_epi32(real_output);
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real_output_ps_1 = _mm_cvtepi32_ps(real_output_i_1);
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real_output = _mm_srli_si128 (real_output, 8);
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real_output_i_2 = _mm_cvtepi16_epi32(real_output);
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real_output_ps_2 = _mm_cvtepi32_ps(real_output_i_2);
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imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
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imag_output_ps_1 = _mm_cvtepi32_ps(imag_output_i_1);
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imag_output = _mm_srli_si128 (imag_output, 8);
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imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
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imag_output_ps_2 = _mm_cvtepi32_ps(imag_output_i_2);
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real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps_1);
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real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps_2);
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imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps_1);
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imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps_2);
|
|
|
|
//Get prompt values
|
|
y1 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
P_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_ps_1 = _mm_cvtepi32_ps(real_output_i_1);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_ps_2 = _mm_cvtepi32_ps(real_output_i_2);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_ps_1 = _mm_cvtepi32_ps(imag_output_i_1);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_ps_2 = _mm_cvtepi32_ps(imag_output_i_2);
|
|
|
|
real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps_1);
|
|
real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps_2);
|
|
imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps_1);
|
|
imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps_2);
|
|
|
|
//Get late values
|
|
y1 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
L_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_ps_1 = _mm_cvtepi32_ps(real_output_i_1);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_ps_2 = _mm_cvtepi32_ps(real_output_i_2);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_ps_1 = _mm_cvtepi32_ps(imag_output_i_1);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_ps_2 = _mm_cvtepi32_ps(imag_output_i_2);
|
|
|
|
real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps_1);
|
|
real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps_2);
|
|
imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps_1);
|
|
imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps_2);
|
|
|
|
input_ptr += 4;
|
|
carrier_ptr += 4;
|
|
E_code_ptr += 4;
|
|
L_code_ptr += 4;
|
|
P_code_ptr += 4;
|
|
}
|
|
|
|
__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
|
|
|
|
_mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
|
|
|
|
for (int i = 0; i<4; ++i)
|
|
{
|
|
E_out_real += real_E_dotProductVector[i];
|
|
E_out_imag += imag_E_dotProductVector[i];
|
|
P_out_real += real_P_dotProductVector[i];
|
|
P_out_imag += imag_P_dotProductVector[i];
|
|
L_out_real += real_L_dotProductVector[i];
|
|
L_out_imag += imag_L_dotProductVector[i];
|
|
}
|
|
*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
}
|
|
|
|
lv_16sc_t bb_signal_sample;
|
|
for(unsigned int i=0; i < num_points%8; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
|
|
// Now get early, late, and prompt values for each
|
|
*E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
|
|
*P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
|
|
*L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_SSE4_1 */
|
|
|
|
#ifdef LV_HAVE_SSE4_1
|
|
#include <smmintrin.h>
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Early PRN code replica input
|
|
\param L_code Early PRN code replica input
|
|
\param E_out Early correlation output
|
|
\param P_out Early correlation output
|
|
\param L_out Early correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_sse4_1_third(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
{
|
|
const unsigned int sse_iters = num_points / 8;
|
|
unsigned int index = 0;
|
|
unsigned int indexPlus4 = 0;
|
|
|
|
__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
|
|
__m128i realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, real_output_i32, imag_output_i32;
|
|
|
|
__m128 real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc;
|
|
__m128i real_output_i_1, real_output_i_2, imag_output_i_1, imag_output_i_2;
|
|
__m128 real_output_ps, imag_output_ps;
|
|
|
|
float E_out_real = 0;
|
|
float E_out_imag = 0;
|
|
float P_out_real = 0;
|
|
float P_out_imag = 0;
|
|
float L_out_real = 0;
|
|
float L_out_imag = 0;
|
|
|
|
const lv_16sc_t* input_ptr = input;
|
|
const lv_16sc_t* carrier_ptr = carrier;
|
|
|
|
const lv_16sc_t* E_code_ptr = E_code;
|
|
lv_32fc_t* E_out_ptr = E_out;
|
|
const lv_16sc_t* L_code_ptr = L_code;
|
|
lv_32fc_t* L_out_ptr = L_out;
|
|
const lv_16sc_t* P_code_ptr = P_code;
|
|
lv_32fc_t* P_out_ptr = P_out;
|
|
|
|
*E_out_ptr = 0;
|
|
*P_out_ptr = 0;
|
|
*L_out_ptr = 0;
|
|
|
|
real_E_code_acc = _mm_setzero_ps();
|
|
imag_E_code_acc = _mm_setzero_ps();
|
|
real_P_code_acc = _mm_setzero_ps();
|
|
imag_P_code_acc = _mm_setzero_ps();
|
|
real_L_code_acc = _mm_setzero_ps();
|
|
imag_L_code_acc = _mm_setzero_ps();
|
|
|
|
if (sse_iters>0)
|
|
{
|
|
for(index = 0;index < 8*sse_iters; index+=8){
|
|
indexPlus4 = index + 4;
|
|
//Perform the carrier wipe-off
|
|
x1 = _mm_lddqu_si128((__m128i*)&input_ptr[index]);
|
|
x2 = _mm_lddqu_si128((__m128i*)&input_ptr[indexPlus4]);
|
|
|
|
y1 = _mm_lddqu_si128((__m128i*)&carrier_ptr[index]);
|
|
y2 = _mm_lddqu_si128((__m128i*)&carrier_ptr[indexPlus4]);
|
|
|
|
imagx = _mm_srli_si128 (x1, 2);
|
|
imagx = _mm_blend_epi16 (x2, imagx, 85);
|
|
realx = _mm_slli_si128 (x2, 2);
|
|
realx = _mm_blend_epi16 (realx, x1, 85);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (realx, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imagx, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (realx, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imagx, realy);
|
|
|
|
real_bb_signal_sample = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_bb_signal_sample = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
//Get early values
|
|
y1 = _mm_lddqu_si128((__m128i*)&E_code_ptr[index]);
|
|
y2 = _mm_lddqu_si128((__m128i*)&E_code_ptr[indexPlus4]);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_i32 = _mm_add_epi32 (real_output_i_1, real_output_i_2);
|
|
real_output_ps = _mm_cvtepi32_ps(real_output_i32);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_i32 = _mm_add_epi32 (imag_output_i_1, imag_output_i_2);
|
|
imag_output_ps = _mm_cvtepi32_ps(imag_output_i32);
|
|
|
|
real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps);
|
|
imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps);
|
|
|
|
//Get prompt values
|
|
y1 = _mm_lddqu_si128((__m128i*)&P_code_ptr[index]);
|
|
y2 = _mm_lddqu_si128((__m128i*)&P_code_ptr[indexPlus4]);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_i32 = _mm_add_epi32 (real_output_i_1, real_output_i_2);
|
|
real_output_ps = _mm_cvtepi32_ps(real_output_i32);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_i32 = _mm_add_epi32 (imag_output_i_1, imag_output_i_2);
|
|
imag_output_ps = _mm_cvtepi32_ps(imag_output_i32);
|
|
|
|
real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps);
|
|
imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps);
|
|
|
|
//Get late values
|
|
y1 = _mm_lddqu_si128((__m128i*)&L_code_ptr[index]);
|
|
y2 = _mm_lddqu_si128((__m128i*)&L_code_ptr[indexPlus4]);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_i32 = _mm_add_epi32 (real_output_i_1, real_output_i_2);
|
|
real_output_ps = _mm_cvtepi32_ps(real_output_i32);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_i32 = _mm_add_epi32 (imag_output_i_1, imag_output_i_2);
|
|
imag_output_ps = _mm_cvtepi32_ps(imag_output_i32);
|
|
|
|
real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps);
|
|
imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps);
|
|
}
|
|
|
|
__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
|
|
|
|
_mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
|
|
|
|
for (int i = 0; i<4; ++i)
|
|
{
|
|
E_out_real += real_E_dotProductVector[i];
|
|
E_out_imag += imag_E_dotProductVector[i];
|
|
P_out_real += real_P_dotProductVector[i];
|
|
P_out_imag += imag_P_dotProductVector[i];
|
|
L_out_real += real_L_dotProductVector[i];
|
|
L_out_imag += imag_L_dotProductVector[i];
|
|
}
|
|
*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
}
|
|
|
|
lv_16sc_t bb_signal_sample;
|
|
for(; index < num_points; index++)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = input_ptr[index] * carrier_ptr[index];
|
|
// Now get early, late, and prompt values for each
|
|
*E_out_ptr += (lv_32fc_t) (bb_signal_sample * E_code_ptr[index]);
|
|
*P_out_ptr += (lv_32fc_t) (bb_signal_sample * P_code_ptr[index]);
|
|
*L_out_ptr += (lv_32fc_t) (bb_signal_sample * L_code_ptr[index]);
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_SSE4_1 */
|
|
|
|
#ifdef LV_HAVE_SSE4_1
|
|
#include <smmintrin.h>
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Early PRN code replica input
|
|
\param L_code Early PRN code replica input
|
|
\param E_out Early correlation output
|
|
\param P_out Early correlation output
|
|
\param L_out Early correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_sse4_1_fourth(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
{
|
|
const unsigned int sse_iters = num_points / 8;
|
|
|
|
__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
|
|
__m128i realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, real_output_i32, imag_output_i32;
|
|
|
|
__m128 real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc;
|
|
__m128i real_output_i_1, real_output_i_2, imag_output_i_1, imag_output_i_2;
|
|
__m128 real_output_ps, imag_output_ps;
|
|
|
|
float E_out_real = 0;
|
|
float E_out_imag = 0;
|
|
float P_out_real = 0;
|
|
float P_out_imag = 0;
|
|
float L_out_real = 0;
|
|
float L_out_imag = 0;
|
|
|
|
const lv_16sc_t* input_ptr = input;
|
|
const lv_16sc_t* carrier_ptr = carrier;
|
|
|
|
const lv_16sc_t* E_code_ptr = E_code;
|
|
lv_32fc_t* E_out_ptr = E_out;
|
|
const lv_16sc_t* L_code_ptr = L_code;
|
|
lv_32fc_t* L_out_ptr = L_out;
|
|
const lv_16sc_t* P_code_ptr = P_code;
|
|
lv_32fc_t* P_out_ptr = P_out;
|
|
|
|
*E_out_ptr = 0;
|
|
*P_out_ptr = 0;
|
|
*L_out_ptr = 0;
|
|
|
|
real_E_code_acc = _mm_setzero_ps();
|
|
imag_E_code_acc = _mm_setzero_ps();
|
|
real_P_code_acc = _mm_setzero_ps();
|
|
imag_P_code_acc = _mm_setzero_ps();
|
|
real_L_code_acc = _mm_setzero_ps();
|
|
imag_L_code_acc = _mm_setzero_ps();
|
|
|
|
if (sse_iters>0)
|
|
{
|
|
for(unsigned int number = 0;number < sse_iters; number++){
|
|
|
|
//Perform the carrier wipe-off
|
|
x1 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
input_ptr += 4;
|
|
x2 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
|
|
y1 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
carrier_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
|
|
imagx = _mm_srli_si128 (x1, 2);
|
|
imagx = _mm_blend_epi16 (x2, imagx, 85);
|
|
realx = _mm_slli_si128 (x2, 2);
|
|
realx = _mm_blend_epi16 (realx, x1, 85);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (realx, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imagx, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (realx, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imagx, realy);
|
|
|
|
real_bb_signal_sample = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_bb_signal_sample = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
//Get early values
|
|
y1 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
E_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_i32 = _mm_add_epi32 (real_output_i_1, real_output_i_2);
|
|
real_output_ps = _mm_cvtepi32_ps(real_output_i32);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_i32 = _mm_add_epi32 (imag_output_i_1, imag_output_i_2);
|
|
imag_output_ps = _mm_cvtepi32_ps(imag_output_i32);
|
|
|
|
real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps);
|
|
imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps);
|
|
|
|
//Get prompt values
|
|
y1 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
P_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_i32 = _mm_add_epi32 (real_output_i_1, real_output_i_2);
|
|
real_output_ps = _mm_cvtepi32_ps(real_output_i32);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_i32 = _mm_add_epi32 (imag_output_i_1, imag_output_i_2);
|
|
imag_output_ps = _mm_cvtepi32_ps(imag_output_i32);
|
|
|
|
real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps);
|
|
imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps);
|
|
|
|
//Get late values
|
|
y1 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
L_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
|
|
imagy = _mm_srli_si128 (y1, 2);
|
|
imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
realy = _mm_slli_si128 (y2, 2);
|
|
realy = _mm_blend_epi16 (realy, y1, 85);
|
|
|
|
realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
|
|
real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
|
|
real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
real_output = _mm_srli_si128 (real_output, 8);
|
|
real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
real_output_i32 = _mm_add_epi32 (real_output_i_1, real_output_i_2);
|
|
real_output_ps = _mm_cvtepi32_ps(real_output_i32);
|
|
|
|
imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output = _mm_srli_si128 (imag_output, 8);
|
|
imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
imag_output_i32 = _mm_add_epi32 (imag_output_i_1, imag_output_i_2);
|
|
imag_output_ps = _mm_cvtepi32_ps(imag_output_i32);
|
|
|
|
real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps);
|
|
imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps);
|
|
|
|
input_ptr += 4;
|
|
carrier_ptr += 4;
|
|
E_code_ptr += 4;
|
|
L_code_ptr += 4;
|
|
P_code_ptr += 4;
|
|
}
|
|
|
|
__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
|
|
|
|
_mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
|
|
|
|
for (int i = 0; i<4; ++i)
|
|
{
|
|
E_out_real += real_E_dotProductVector[i];
|
|
E_out_imag += imag_E_dotProductVector[i];
|
|
P_out_real += real_P_dotProductVector[i];
|
|
P_out_imag += imag_P_dotProductVector[i];
|
|
L_out_real += real_L_dotProductVector[i];
|
|
L_out_imag += imag_L_dotProductVector[i];
|
|
}
|
|
*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
}
|
|
|
|
lv_16sc_t bb_signal_sample;
|
|
for(unsigned int i=0; i < num_points%8; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
|
|
// Now get early, late, and prompt values for each
|
|
*E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
|
|
*P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
|
|
*L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_SSE4_1 */
|
|
|
|
#ifdef LV_HAVE_SSE4_1
|
|
#include <smmintrin.h>
|
|
#include "CommonMacros/CommonMacros.h"
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Early PRN code replica input
|
|
\param L_code Early PRN code replica input
|
|
\param E_out Early correlation output
|
|
\param P_out Early correlation output
|
|
\param L_out Early correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
|
|
static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_sse4_1_fifth(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
{
|
|
const unsigned int sse_iters = num_points / 8;
|
|
|
|
__m128i realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy;
|
|
__m128i input_i_1, input_i_2, output_i32;
|
|
|
|
__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
|
|
__m128i realx, imagx, realy, imagy, real_output, imag_output;
|
|
|
|
__m128 real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc;
|
|
__m128 real_output_ps, imag_output_ps;
|
|
|
|
float E_out_real = 0;
|
|
float E_out_imag = 0;
|
|
float P_out_real = 0;
|
|
float P_out_imag = 0;
|
|
float L_out_real = 0;
|
|
float L_out_imag = 0;
|
|
|
|
const lv_16sc_t* input_ptr = input;
|
|
const lv_16sc_t* carrier_ptr = carrier;
|
|
|
|
const lv_16sc_t* E_code_ptr = E_code;
|
|
lv_32fc_t* E_out_ptr = E_out;
|
|
const lv_16sc_t* L_code_ptr = L_code;
|
|
lv_32fc_t* L_out_ptr = L_out;
|
|
const lv_16sc_t* P_code_ptr = P_code;
|
|
lv_32fc_t* P_out_ptr = P_out;
|
|
|
|
*E_out_ptr = 0;
|
|
*P_out_ptr = 0;
|
|
*L_out_ptr = 0;
|
|
|
|
real_E_code_acc = _mm_setzero_ps();
|
|
imag_E_code_acc = _mm_setzero_ps();
|
|
real_P_code_acc = _mm_setzero_ps();
|
|
imag_P_code_acc = _mm_setzero_ps();
|
|
real_L_code_acc = _mm_setzero_ps();
|
|
imag_L_code_acc = _mm_setzero_ps();
|
|
|
|
if (sse_iters>0)
|
|
{
|
|
for(unsigned int number = 0;number < sse_iters; number++){
|
|
|
|
//Perform the carrier wipe-off
|
|
x1 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
input_ptr += 4;
|
|
x2 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
|
|
y1 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
carrier_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(x1, x2, realx, imagx)
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
|
|
CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_bb_signal_sample, imag_bb_signal_sample)
|
|
|
|
//Get early values
|
|
y1 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
E_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
|
|
CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(real_bb_signal_sample, imag_bb_signal_sample, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output)
|
|
|
|
CM_16IC_CONVERT_AND_ACC_32FC_U_SSE4_1(real_output, input_i_1, input_i_2, output_i32, real_output_ps)
|
|
CM_16IC_CONVERT_AND_ACC_32FC_U_SSE4_1(imag_output, input_i_1, input_i_2, output_i32, imag_output_ps)
|
|
|
|
real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps);
|
|
imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps);
|
|
|
|
//Get prompt values
|
|
y1 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
P_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
|
|
CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(real_bb_signal_sample, imag_bb_signal_sample, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output)
|
|
|
|
CM_16IC_CONVERT_AND_ACC_32FC_U_SSE4_1(real_output, input_i_1, input_i_2, output_i32, real_output_ps)
|
|
CM_16IC_CONVERT_AND_ACC_32FC_U_SSE4_1(imag_output, input_i_1, input_i_2, output_i32, imag_output_ps)
|
|
|
|
real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps);
|
|
imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps);
|
|
|
|
//Get late values
|
|
y1 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
L_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
|
|
CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(real_bb_signal_sample, imag_bb_signal_sample, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output)
|
|
|
|
CM_16IC_CONVERT_AND_ACC_32FC_U_SSE4_1(real_output, input_i_1, input_i_2, output_i32, real_output_ps)
|
|
CM_16IC_CONVERT_AND_ACC_32FC_U_SSE4_1(imag_output, input_i_1, input_i_2, output_i32, imag_output_ps)
|
|
|
|
real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps);
|
|
imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps);
|
|
|
|
input_ptr += 4;
|
|
carrier_ptr += 4;
|
|
E_code_ptr += 4;
|
|
L_code_ptr += 4;
|
|
P_code_ptr += 4;
|
|
}
|
|
|
|
__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
|
|
|
|
_mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
|
|
|
|
for (int i = 0; i<4; ++i)
|
|
{
|
|
E_out_real += real_E_dotProductVector[i];
|
|
E_out_imag += imag_E_dotProductVector[i];
|
|
P_out_real += real_P_dotProductVector[i];
|
|
P_out_imag += imag_P_dotProductVector[i];
|
|
L_out_real += real_L_dotProductVector[i];
|
|
L_out_imag += imag_L_dotProductVector[i];
|
|
}
|
|
*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
}
|
|
|
|
lv_16sc_t bb_signal_sample;
|
|
for(unsigned int i=0; i < num_points%8; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
|
|
// Now get early, late, and prompt values for each
|
|
*E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
|
|
*P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
|
|
*L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_SSE4_1 */
|
|
|
|
#ifdef LV_HAVE_SSE4_1
|
|
#include <smmintrin.h>
|
|
#include "CommonMacros/CommonMacros_16ic_cw_epl_corr_32fc.h"
|
|
#include "CommonMacros/CommonMacros.h"
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Early PRN code replica input
|
|
\param L_code Early PRN code replica input
|
|
\param E_out Early correlation output
|
|
\param P_out Early correlation output
|
|
\param L_out Early correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
|
|
static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_sse4_1_sixth(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
{
|
|
const unsigned int sse_iters = num_points / 8;
|
|
|
|
__m128i realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy;
|
|
__m128i input_i_1, input_i_2, output_i32;
|
|
|
|
__m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
|
|
__m128i realx, imagx, realy, imagy, real_output, imag_output;
|
|
|
|
__m128 real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc;
|
|
__m128 real_output_ps, imag_output_ps;
|
|
|
|
float E_out_real = 0;
|
|
float E_out_imag = 0;
|
|
float P_out_real = 0;
|
|
float P_out_imag = 0;
|
|
float L_out_real = 0;
|
|
float L_out_imag = 0;
|
|
|
|
const lv_16sc_t* input_ptr = input;
|
|
const lv_16sc_t* carrier_ptr = carrier;
|
|
|
|
const lv_16sc_t* E_code_ptr = E_code;
|
|
lv_32fc_t* E_out_ptr = E_out;
|
|
const lv_16sc_t* L_code_ptr = L_code;
|
|
lv_32fc_t* L_out_ptr = L_out;
|
|
const lv_16sc_t* P_code_ptr = P_code;
|
|
lv_32fc_t* P_out_ptr = P_out;
|
|
|
|
*E_out_ptr = 0;
|
|
*P_out_ptr = 0;
|
|
*L_out_ptr = 0;
|
|
|
|
real_E_code_acc = _mm_setzero_ps();
|
|
imag_E_code_acc = _mm_setzero_ps();
|
|
real_P_code_acc = _mm_setzero_ps();
|
|
imag_P_code_acc = _mm_setzero_ps();
|
|
real_L_code_acc = _mm_setzero_ps();
|
|
imag_L_code_acc = _mm_setzero_ps();
|
|
|
|
if (sse_iters>0)
|
|
{
|
|
for(unsigned int number = 0;number < sse_iters; number++){
|
|
|
|
//Perform the carrier wipe-off
|
|
x1 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
input_ptr += 4;
|
|
x2 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
|
|
y1 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
carrier_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(x1, x2, realx, imagx)
|
|
CM_16IC_X2_REARRANGE_VECTOR_INTO_REAL_IMAG_16IC_X2_U_SSE4_1(y1, y2, realy, imagy)
|
|
CM_16IC_X4_SCALAR_PRODUCT_16IC_X2_U_SSE2(realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_bb_signal_sample, imag_bb_signal_sample)
|
|
|
|
//Get early values
|
|
y1 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
E_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
|
|
CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
|
|
|
|
real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps);
|
|
imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps);
|
|
|
|
//Get prompt values
|
|
y1 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
P_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
|
|
CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
|
|
|
|
real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps);
|
|
imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps);
|
|
|
|
//Get late values
|
|
y1 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
L_code_ptr += 4;
|
|
y2 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
|
|
CM_16IC_X2_CW_CORR_32FC_X2_U_SSE4_1(y1, y2, realy, imagy, real_bb_signal_sample, imag_bb_signal_sample,realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output, input_i_1, input_i_2, output_i32, real_output_ps, imag_output_ps)
|
|
|
|
real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps);
|
|
imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps);
|
|
|
|
input_ptr += 4;
|
|
carrier_ptr += 4;
|
|
E_code_ptr += 4;
|
|
L_code_ptr += 4;
|
|
P_code_ptr += 4;
|
|
}
|
|
|
|
__VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
|
|
__VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
|
|
|
|
_mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
|
|
_mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
|
|
|
|
for (int i = 0; i<4; ++i)
|
|
{
|
|
E_out_real += real_E_dotProductVector[i];
|
|
E_out_imag += imag_E_dotProductVector[i];
|
|
P_out_real += real_P_dotProductVector[i];
|
|
P_out_imag += imag_P_dotProductVector[i];
|
|
L_out_real += real_L_dotProductVector[i];
|
|
L_out_imag += imag_L_dotProductVector[i];
|
|
}
|
|
*E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
*P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
*L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
}
|
|
|
|
lv_16sc_t bb_signal_sample;
|
|
for(unsigned int i=0; i < num_points%8; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
|
|
// Now get early, late, and prompt values for each
|
|
*E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
|
|
*P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
|
|
*L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_SSE4_1 */
|
|
|
|
#ifdef LV_HAVE_GENERIC
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Early PRN code replica input
|
|
\param L_code Early PRN code replica input
|
|
\param E_out Early correlation output
|
|
\param P_out Early correlation output
|
|
\param L_out Early correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_generic(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
{
|
|
lv_16sc_t bb_signal_sample;
|
|
lv_16sc_t tmp1;
|
|
lv_16sc_t tmp2;
|
|
lv_16sc_t tmp3;
|
|
|
|
bb_signal_sample = lv_cmake(0, 0);
|
|
|
|
*E_out = 0;
|
|
*P_out = 0;
|
|
*L_out = 0;
|
|
// perform Early, Prompt and Late correlation
|
|
|
|
for(unsigned int i=0; i < num_points; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = input[i] * carrier[i];
|
|
|
|
tmp1 = bb_signal_sample * E_code[i];
|
|
tmp2 = bb_signal_sample * P_code[i];
|
|
tmp3 = bb_signal_sample * L_code[i];
|
|
|
|
// Now get early, late, and prompt values for each
|
|
*E_out += (lv_32fc_t)tmp1;
|
|
*P_out += (lv_32fc_t)tmp2;
|
|
*L_out += (lv_32fc_t)tmp3;
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_GENERIC */
|
|
#endif /* INCLUDED_gnsssdr_volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_u_H */
|
|
|
|
|
|
#ifndef INCLUDED_gnsssdr_volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_a_H
|
|
#define INCLUDED_gnsssdr_volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_a_H
|
|
|
|
#include <inttypes.h>
|
|
#include <stdio.h>
|
|
#include <volk_gnsssdr/volk_gnsssdr_complex.h>
|
|
#include <float.h>
|
|
#include <string.h>
|
|
//
|
|
//#ifdef LV_HAVE_SSE4_1
|
|
//#include <smmintrin.h>
|
|
///*!
|
|
// \brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
// \param input The input signal input
|
|
// \param carrier The carrier signal input
|
|
// \param E_code Early PRN code replica input
|
|
// \param P_code Early PRN code replica input
|
|
// \param L_code Early PRN code replica input
|
|
// \param E_out Early correlation output
|
|
// \param P_out Early correlation output
|
|
// \param L_out Early correlation output
|
|
// \param num_points The number of complex values in vectors
|
|
// */
|
|
//static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_a_sse4_1(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
//{
|
|
// const unsigned int sse_iters = num_points / 8;
|
|
//
|
|
// __m128i x1, x2, y1, y2, real_bb_signal_sample, imag_bb_signal_sample;
|
|
// __m128i mult1, realx, imagx, realy, imagy, realx_mult_realy, imagx_mult_imagy, realx_mult_imagy, imagx_mult_realy, real_output, imag_output;
|
|
//
|
|
// __m128 real_E_code_acc, imag_E_code_acc, real_P_code_acc, imag_P_code_acc, real_L_code_acc, imag_L_code_acc;
|
|
// __m128i real_output_i_1, real_output_i_2, imag_output_i_1, imag_output_i_2;
|
|
// __m128 real_output_ps_1, real_output_ps_2, imag_output_ps_1, imag_output_ps_2;
|
|
//
|
|
// float E_out_real = 0;
|
|
// float E_out_imag = 0;
|
|
// float P_out_real = 0;
|
|
// float P_out_imag = 0;
|
|
// float L_out_real = 0;
|
|
// float L_out_imag = 0;
|
|
//
|
|
// const lv_16sc_t* input_ptr = input;
|
|
// const lv_16sc_t* carrier_ptr = carrier;
|
|
//
|
|
// const lv_16sc_t* E_code_ptr = E_code;
|
|
// lv_32fc_t* E_out_ptr = E_out;
|
|
// const lv_16sc_t* L_code_ptr = L_code;
|
|
// lv_32fc_t* L_out_ptr = L_out;
|
|
// const lv_16sc_t* P_code_ptr = P_code;
|
|
// lv_32fc_t* P_out_ptr = P_out;
|
|
//
|
|
// *E_out_ptr = 0;
|
|
// *P_out_ptr = 0;
|
|
// *L_out_ptr = 0;
|
|
//
|
|
// mult1 = _mm_set_epi8(0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255, 0, 255);
|
|
//
|
|
// real_E_code_acc = _mm_setzero_ps();
|
|
// imag_E_code_acc = _mm_setzero_ps();
|
|
// real_P_code_acc = _mm_setzero_ps();
|
|
// imag_P_code_acc = _mm_setzero_ps();
|
|
// real_L_code_acc = _mm_setzero_ps();
|
|
// imag_L_code_acc = _mm_setzero_ps();
|
|
//
|
|
// if (sse_iters>0)
|
|
// {
|
|
// for(int number = 0;number < sse_iters; number++){
|
|
//
|
|
// //Perform the carrier wipe-off
|
|
// x1 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
// input_ptr += 4;
|
|
// x2 = _mm_lddqu_si128((__m128i*)input_ptr);
|
|
//
|
|
// y1 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
// carrier_ptr += 4;
|
|
// y2 = _mm_lddqu_si128((__m128i*)carrier_ptr);
|
|
//
|
|
// imagx = _mm_srli_si128 (x1, 2);
|
|
// imagx = _mm_blend_epi16 (x2, imagx, 85);
|
|
// realx = _mm_slli_si128 (x2, 2);
|
|
// realx = _mm_blend_epi16 (realx, x1, 85);
|
|
//
|
|
// imagy = _mm_srli_si128 (y1, 2);
|
|
// imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
// realy = _mm_slli_si128 (y2, 2);
|
|
// realy = _mm_blend_epi16 (realy, y1, 85);
|
|
//
|
|
// realx_mult_realy = _mm_mullo_epi16 (realx, realy);
|
|
// imagx_mult_imagy = _mm_mullo_epi16 (imagx, imagy);
|
|
// realx_mult_imagy = _mm_mullo_epi16 (realx, imagy);
|
|
// imagx_mult_realy = _mm_mullo_epi16 (imagx, realy);
|
|
//
|
|
// real_bb_signal_sample = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
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|
// imag_bb_signal_sample = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
//
|
|
// //Get early values
|
|
// y1 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
// E_code_ptr += 4;
|
|
// y2 = _mm_lddqu_si128((__m128i*)E_code_ptr);
|
|
//
|
|
// imagy = _mm_srli_si128 (y1, 2);
|
|
// imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
// realy = _mm_slli_si128 (y2, 2);
|
|
// realy = _mm_blend_epi16 (realy, y1, 85);
|
|
//
|
|
// realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
// imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
// realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
// imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
//
|
|
// real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
// imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
//
|
|
// real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
// real_output_ps_1 = _mm_cvtepi32_ps(real_output_i_1);
|
|
// real_output = _mm_srli_si128 (real_output, 8);
|
|
// real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
// real_output_ps_2 = _mm_cvtepi32_ps(real_output_i_2);
|
|
//
|
|
// imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
// imag_output_ps_1 = _mm_cvtepi32_ps(imag_output_i_1);
|
|
// imag_output = _mm_srli_si128 (imag_output, 8);
|
|
// imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
// imag_output_ps_2 = _mm_cvtepi32_ps(imag_output_i_2);
|
|
//
|
|
// real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps_1);
|
|
// real_E_code_acc = _mm_add_ps (real_E_code_acc, real_output_ps_2);
|
|
// imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps_1);
|
|
// imag_E_code_acc = _mm_add_ps (imag_E_code_acc, imag_output_ps_2);
|
|
//
|
|
// //Get prompt values
|
|
// y1 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
// P_code_ptr += 4;
|
|
// y2 = _mm_lddqu_si128((__m128i*)P_code_ptr);
|
|
//
|
|
// imagy = _mm_srli_si128 (y1, 2);
|
|
// imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
// realy = _mm_slli_si128 (y2, 2);
|
|
// realy = _mm_blend_epi16 (realy, y1, 85);
|
|
//
|
|
// realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
// imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
// realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
// imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
//
|
|
// real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
// imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
//
|
|
// real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
// real_output_ps_1 = _mm_cvtepi32_ps(real_output_i_1);
|
|
// real_output = _mm_srli_si128 (real_output, 8);
|
|
// real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
// real_output_ps_2 = _mm_cvtepi32_ps(real_output_i_2);
|
|
//
|
|
// imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
// imag_output_ps_1 = _mm_cvtepi32_ps(imag_output_i_1);
|
|
// imag_output = _mm_srli_si128 (imag_output, 8);
|
|
// imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
// imag_output_ps_2 = _mm_cvtepi32_ps(imag_output_i_2);
|
|
//
|
|
// real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps_1);
|
|
// real_P_code_acc = _mm_add_ps (real_P_code_acc, real_output_ps_2);
|
|
// imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps_1);
|
|
// imag_P_code_acc = _mm_add_ps (imag_P_code_acc, imag_output_ps_2);
|
|
//
|
|
// //Get late values
|
|
// y1 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
// L_code_ptr += 4;
|
|
// y2 = _mm_lddqu_si128((__m128i*)L_code_ptr);
|
|
//
|
|
// imagy = _mm_srli_si128 (y1, 2);
|
|
// imagy = _mm_blend_epi16 (y2, imagy, 85);
|
|
// realy = _mm_slli_si128 (y2, 2);
|
|
// realy = _mm_blend_epi16 (realy, y1, 85);
|
|
//
|
|
// realx_mult_realy = _mm_mullo_epi16 (real_bb_signal_sample, realy);
|
|
// imagx_mult_imagy = _mm_mullo_epi16 (imag_bb_signal_sample, imagy);
|
|
// realx_mult_imagy = _mm_mullo_epi16 (real_bb_signal_sample, imagy);
|
|
// imagx_mult_realy = _mm_mullo_epi16 (imag_bb_signal_sample, realy);
|
|
//
|
|
// real_output = _mm_sub_epi16 (realx_mult_realy, imagx_mult_imagy);
|
|
// imag_output = _mm_add_epi16 (realx_mult_imagy, imagx_mult_realy);
|
|
//
|
|
// real_output_i_1 = _mm_cvtepi16_epi32(real_output);
|
|
// real_output_ps_1 = _mm_cvtepi32_ps(real_output_i_1);
|
|
// real_output = _mm_srli_si128 (real_output, 8);
|
|
// real_output_i_2 = _mm_cvtepi16_epi32(real_output);
|
|
// real_output_ps_2 = _mm_cvtepi32_ps(real_output_i_2);
|
|
//
|
|
// imag_output_i_1 = _mm_cvtepi16_epi32(imag_output);
|
|
// imag_output_ps_1 = _mm_cvtepi32_ps(imag_output_i_1);
|
|
// imag_output = _mm_srli_si128 (imag_output, 8);
|
|
// imag_output_i_2 = _mm_cvtepi16_epi32(imag_output);
|
|
// imag_output_ps_2 = _mm_cvtepi32_ps(imag_output_i_2);
|
|
//
|
|
// real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps_1);
|
|
// real_L_code_acc = _mm_add_ps (real_L_code_acc, real_output_ps_2);
|
|
// imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps_1);
|
|
// imag_L_code_acc = _mm_add_ps (imag_L_code_acc, imag_output_ps_2);
|
|
//
|
|
// input_ptr += 4;
|
|
// carrier_ptr += 4;
|
|
// E_code_ptr += 4;
|
|
// L_code_ptr += 4;
|
|
// P_code_ptr += 4;
|
|
// }
|
|
//
|
|
// __VOLK_ATTR_ALIGNED(16) float real_E_dotProductVector[4];
|
|
// __VOLK_ATTR_ALIGNED(16) float imag_E_dotProductVector[4];
|
|
// __VOLK_ATTR_ALIGNED(16) float real_P_dotProductVector[4];
|
|
// __VOLK_ATTR_ALIGNED(16) float imag_P_dotProductVector[4];
|
|
// __VOLK_ATTR_ALIGNED(16) float real_L_dotProductVector[4];
|
|
// __VOLK_ATTR_ALIGNED(16) float imag_L_dotProductVector[4];
|
|
//
|
|
// _mm_storeu_ps((float*)real_E_dotProductVector,real_E_code_acc); // Store the results back into the dot product vector
|
|
// _mm_storeu_ps((float*)imag_E_dotProductVector,imag_E_code_acc); // Store the results back into the dot product vector
|
|
// _mm_storeu_ps((float*)real_P_dotProductVector,real_P_code_acc); // Store the results back into the dot product vector
|
|
// _mm_storeu_ps((float*)imag_P_dotProductVector,imag_P_code_acc); // Store the results back into the dot product vector
|
|
// _mm_storeu_ps((float*)real_L_dotProductVector,real_L_code_acc); // Store the results back into the dot product vector
|
|
// _mm_storeu_ps((float*)imag_L_dotProductVector,imag_L_code_acc); // Store the results back into the dot product vector
|
|
//
|
|
// for (int i = 0; i<4; ++i)
|
|
// {
|
|
// E_out_real += real_E_dotProductVector[i];
|
|
// E_out_imag += imag_E_dotProductVector[i];
|
|
// P_out_real += real_P_dotProductVector[i];
|
|
// P_out_imag += imag_P_dotProductVector[i];
|
|
// L_out_real += real_L_dotProductVector[i];
|
|
// L_out_imag += imag_L_dotProductVector[i];
|
|
// }
|
|
// *E_out_ptr = lv_cmake(E_out_real, E_out_imag);
|
|
// *P_out_ptr = lv_cmake(P_out_real, P_out_imag);
|
|
// *L_out_ptr = lv_cmake(L_out_real, L_out_imag);
|
|
// }
|
|
//
|
|
// lv_16sc_t bb_signal_sample;
|
|
// for(int i=0; i < num_points%8; ++i)
|
|
// {
|
|
// //Perform the carrier wipe-off
|
|
// bb_signal_sample = (*input_ptr++) * (*carrier_ptr++);
|
|
// // Now get early, late, and prompt values for each
|
|
// *E_out_ptr += (lv_32fc_t) (bb_signal_sample * (*E_code_ptr++));
|
|
// *P_out_ptr += (lv_32fc_t) (bb_signal_sample * (*P_code_ptr++));
|
|
// *L_out_ptr += (lv_32fc_t) (bb_signal_sample * (*L_code_ptr++));
|
|
// }
|
|
//}
|
|
//#endif /* LV_HAVE_SSE4_1 */
|
|
//
|
|
#ifdef LV_HAVE_GENERIC
|
|
/*!
|
|
\brief Performs the carrier wipe-off mixing and the Early, Prompt, and Late correlation
|
|
\param input The input signal input
|
|
\param carrier The carrier signal input
|
|
\param E_code Early PRN code replica input
|
|
\param P_code Early PRN code replica input
|
|
\param L_code Early PRN code replica input
|
|
\param E_out Early correlation output
|
|
\param P_out Early correlation output
|
|
\param L_out Early correlation output
|
|
\param num_points The number of complex values in vectors
|
|
*/
|
|
static inline void volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_a_generic(lv_32fc_t* E_out, lv_32fc_t* P_out, lv_32fc_t* L_out, const lv_16sc_t* input, const lv_16sc_t* carrier, const lv_16sc_t* E_code, const lv_16sc_t* P_code, const lv_16sc_t* L_code, unsigned int num_points)
|
|
{
|
|
lv_16sc_t bb_signal_sample;
|
|
lv_16sc_t tmp1;
|
|
lv_16sc_t tmp2;
|
|
lv_16sc_t tmp3;
|
|
|
|
bb_signal_sample = lv_cmake(0, 0);
|
|
|
|
*E_out = 0;
|
|
*P_out = 0;
|
|
*L_out = 0;
|
|
// perform Early, Prompt and Late correlation
|
|
|
|
for(unsigned int i=0; i < num_points; ++i)
|
|
{
|
|
//Perform the carrier wipe-off
|
|
bb_signal_sample = input[i] * carrier[i];
|
|
|
|
tmp1 = bb_signal_sample * E_code[i];
|
|
tmp2 = bb_signal_sample * P_code[i];
|
|
tmp3 = bb_signal_sample * L_code[i];
|
|
|
|
// Now get early, late, and prompt values for each
|
|
*E_out += (lv_32fc_t)tmp1;
|
|
*P_out += (lv_32fc_t)tmp2;
|
|
*L_out += (lv_32fc_t)tmp3;
|
|
}
|
|
}
|
|
#endif /* LV_HAVE_GENERIC */
|
|
#endif /* INCLUDED_gnsssdr_volk_gnsssdr_16ic_x5_cw_epl_corr_TEST_32fc_x3_a_H */
|