From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../DSP/Source/MatrixFunctions/arm_mat_trans_q15.c | 182 +++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_trans_q15.c (limited to 'Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_trans_q15.c') diff --git a/Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_trans_q15.c b/Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_trans_q15.c new file mode 100644 index 0000000..3774e83 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_trans_q15.c @@ -0,0 +1,182 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_mat_trans_q15.c + * Description: Q15 matrix transpose + * + * $Date: 18. March 2019 + * $Revision: V1.6.0 + * + * Target Processor: Cortex-M cores + * -------------------------------------------------------------------- */ +/* + * Copyright (C) 2010-2019 ARM Limited or its affiliates. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "arm_math.h" + +/** + @ingroup groupMatrix + */ + +/** + @addtogroup MatrixTrans + @{ + */ + +/** + @brief Q15 matrix transpose. + @param[in] pSrc points to input matrix + @param[out] pDst points to output matrix + @return execution status + - \ref ARM_MATH_SUCCESS : Operation successful + - \ref ARM_MATH_SIZE_MISMATCH : Matrix size check failed + */ + +arm_status arm_mat_trans_q15( + const arm_matrix_instance_q15 * pSrc, + arm_matrix_instance_q15 * pDst) +{ + q15_t *pIn = pSrc->pData; /* input data matrix pointer */ + q15_t *pOut = pDst->pData; /* output data matrix pointer */ + uint16_t nRows = pSrc->numRows; /* number of rows */ + uint16_t nCols = pSrc->numCols; /* number of columns */ + uint32_t col, row = nRows, i = 0U; /* Loop counters */ + arm_status status; /* status of matrix transpose */ + +#if defined (ARM_MATH_LOOPUNROLL) + q31_t in; /* variable to hold temporary output */ +#endif + +#ifdef ARM_MATH_MATRIX_CHECK + + /* Check for matrix mismatch condition */ + if ((pSrc->numRows != pDst->numCols) || + (pSrc->numCols != pDst->numRows) ) + { + /* Set status as ARM_MATH_SIZE_MISMATCH */ + status = ARM_MATH_SIZE_MISMATCH; + } + else + +#endif /* #ifdef ARM_MATH_MATRIX_CHECK */ + + { + /* Matrix transpose by exchanging the rows with columns */ + /* row loop */ + do + { + /* Pointer pOut is set to starting address of column being processed */ + pOut = pDst->pData + i; + +#if defined (ARM_MATH_LOOPUNROLL) + + /* Loop unrolling: Compute 4 outputs at a time */ + col = nCols >> 2U; + + while (col > 0U) /* column loop */ + { + /* Read two elements from row */ + in = read_q15x2_ia ((q15_t **) &pIn); + + /* Unpack and store one element in destination */ +#ifndef ARM_MATH_BIG_ENDIAN + *pOut = (q15_t) in; +#else + *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16); +#endif /* #ifndef ARM_MATH_BIG_ENDIAN */ + + /* Update pointer pOut to point to next row of transposed matrix */ + pOut += nRows; + + /* Unpack and store second element in destination */ +#ifndef ARM_MATH_BIG_ENDIAN + *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16); +#else + *pOut = (q15_t) in; +#endif /* #ifndef ARM_MATH_BIG_ENDIAN */ + + /* Update pointer pOut to point to next row of transposed matrix */ + pOut += nRows; + + /* Read two elements from row */ + in = read_q15x2_ia ((q15_t **) &pIn); + + /* Unpack and store one element in destination */ +#ifndef ARM_MATH_BIG_ENDIAN + *pOut = (q15_t) in; +#else + *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16); + +#endif /* #ifndef ARM_MATH_BIG_ENDIAN */ + + /* Update pointer pOut to point to next row of transposed matrix */ + pOut += nRows; + + /* Unpack and store second element in destination */ +#ifndef ARM_MATH_BIG_ENDIAN + *pOut = (q15_t) ((in & (q31_t) 0xffff0000) >> 16); +#else + *pOut = (q15_t) in; +#endif /* #ifndef ARM_MATH_BIG_ENDIAN */ + + /* Update pointer pOut to point to next row of transposed matrix */ + pOut += nRows; + + /* Decrement column loop counter */ + col--; + } + + /* Loop unrolling: Compute remaining outputs */ + col = nCols % 0x4U; + +#else + + /* Initialize col with number of samples */ + col = nCols; + +#endif /* #if defined (ARM_MATH_LOOPUNROLL) */ + + while (col > 0U) + { + /* Read and store input element in destination */ + *pOut = *pIn++; + + /* Update pointer pOut to point to next row of transposed matrix */ + pOut += nRows; + + /* Decrement column loop counter */ + col--; + } + + i++; + + /* Decrement row loop counter */ + row--; + + } while (row > 0U); /* row loop end */ + + /* Set status as ARM_MATH_SUCCESS */ + status = ARM_MATH_SUCCESS; + } + + /* Return to application */ + return (status); +} + +/** + @} end of MatrixTrans group + */ -- cgit v1.2.3