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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/ComplexMathFunctions/arm_cmplx_dot_prod_f32.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/ComplexMathFunctions/arm_cmplx_dot_prod_f32.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/ComplexMathFunctions/arm_cmplx_dot_prod_f32.c b/tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/ComplexMathFunctions/arm_cmplx_dot_prod_f32.c deleted file mode 100644 index da7c5517c5..0000000000 --- a/tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/ComplexMathFunctions/arm_cmplx_dot_prod_f32.c +++ /dev/null @@ -1,168 +0,0 @@ -/* ---------------------------------------------------------------------- -* Copyright (C) 2010-2013 ARM Limited. All rights reserved. -* -* $Date: 17. January 2013 -* $Revision: V1.4.1 -* -* Project: CMSIS DSP Library -* Title: arm_cmplx_dot_prod_f32.c -* -* Description: Floating-point complex dot product -* -* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0 -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions -* are met: -* - Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* - Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in -* the documentation and/or other materials provided with the -* distribution. -* - Neither the name of ARM LIMITED nor the names of its contributors -* may be used to endorse or promote products derived from this -* software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, -* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN -* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -* POSSIBILITY OF SUCH DAMAGE. -* ---------------------------------------------------------------------------- */ - -#include "arm_math.h" - -/** - * @ingroup groupCmplxMath - */ - -/** - * @defgroup cmplx_dot_prod Complex Dot Product - * - * Computes the dot product of two complex vectors. - * The vectors are multiplied element-by-element and then summed. - * - * The <code>pSrcA</code> points to the first complex input vector and - * <code>pSrcB</code> points to the second complex input vector. - * <code>numSamples</code> specifies the number of complex samples - * and the data in each array is stored in an interleaved fashion - * (real, imag, real, imag, ...). - * Each array has a total of <code>2*numSamples</code> values. - * - * The underlying algorithm is used: - * <pre> - * realResult=0; - * imagResult=0; - * for(n=0; n<numSamples; n++) { - * realResult += pSrcA[(2*n)+0]*pSrcB[(2*n)+0] - pSrcA[(2*n)+1]*pSrcB[(2*n)+1]; - * imagResult += pSrcA[(2*n)+0]*pSrcB[(2*n)+1] + pSrcA[(2*n)+1]*pSrcB[(2*n)+0]; - * } - * </pre> - * - * There are separate functions for floating-point, Q15, and Q31 data types. - */ - -/** - * @addtogroup cmplx_dot_prod - * @{ - */ - -/** - * @brief Floating-point complex dot product - * @param *pSrcA points to the first input vector - * @param *pSrcB points to the second input vector - * @param numSamples number of complex samples in each vector - * @param *realResult real part of the result returned here - * @param *imagResult imaginary part of the result returned here - * @return none. - */ - -void arm_cmplx_dot_prod_f32( - float32_t * pSrcA, - float32_t * pSrcB, - uint32_t numSamples, - float32_t * realResult, - float32_t * imagResult) -{ - float32_t real_sum = 0.0f, imag_sum = 0.0f; /* Temporary result storage */ - -#ifndef ARM_MATH_CM0_FAMILY - - /* Run the below code for Cortex-M4 and Cortex-M3 */ - uint32_t blkCnt; /* loop counter */ - - /*loop Unrolling */ - blkCnt = numSamples >> 2u; - - /* First part of the processing with loop unrolling. Compute 4 outputs at a time. - ** a second loop below computes the remaining 1 to 3 samples. */ - while(blkCnt > 0u) - { - /* CReal = A[0]* B[0] + A[2]* B[2] + A[4]* B[4] + .....+ A[numSamples-2]* B[numSamples-2] */ - real_sum += (*pSrcA++) * (*pSrcB++); - /* CImag = A[1]* B[1] + A[3]* B[3] + A[5]* B[5] + .....+ A[numSamples-1]* B[numSamples-1] */ - imag_sum += (*pSrcA++) * (*pSrcB++); - - real_sum += (*pSrcA++) * (*pSrcB++); - imag_sum += (*pSrcA++) * (*pSrcB++); - - real_sum += (*pSrcA++) * (*pSrcB++); - imag_sum += (*pSrcA++) * (*pSrcB++); - - real_sum += (*pSrcA++) * (*pSrcB++); - imag_sum += (*pSrcA++) * (*pSrcB++); - - /* Decrement the loop counter */ - blkCnt--; - } - - /* If the numSamples is not a multiple of 4, compute any remaining output samples here. - ** No loop unrolling is used. */ - blkCnt = numSamples % 0x4u; - - while(blkCnt > 0u) - { - /* CReal = A[0]* B[0] + A[2]* B[2] + A[4]* B[4] + .....+ A[numSamples-2]* B[numSamples-2] */ - real_sum += (*pSrcA++) * (*pSrcB++); - /* CImag = A[1]* B[1] + A[3]* B[3] + A[5]* B[5] + .....+ A[numSamples-1]* B[numSamples-1] */ - imag_sum += (*pSrcA++) * (*pSrcB++); - - - /* Decrement the loop counter */ - blkCnt--; - } - -#else - - /* Run the below code for Cortex-M0 */ - - while(numSamples > 0u) - { - /* CReal = A[0]* B[0] + A[2]* B[2] + A[4]* B[4] + .....+ A[numSamples-2]* B[numSamples-2] */ - real_sum += (*pSrcA++) * (*pSrcB++); - /* CImag = A[1]* B[1] + A[3]* B[3] + A[5]* B[5] + .....+ A[numSamples-1]* B[numSamples-1] */ - imag_sum += (*pSrcA++) * (*pSrcB++); - - - /* Decrement the loop counter */ - numSamples--; - } - -#endif /* #ifndef ARM_MATH_CM0_FAMILY */ - - /* Store the real and imaginary results in the destination buffers */ - *realResult = real_sum; - *imagResult = imag_sum; -} - -/** - * @} end of cmplx_dot_prod group - */ |