From 9c59a184dba820975e5da6fcd5d248aee87f7e2f Mon Sep 17 00:00:00 2001 From: Clyne Sullivan Date: Sun, 2 Feb 2025 11:26:53 -0500 Subject: add l476 implementation --- .../ComplexMathFunctions/arm_cmplx_conj_q31.c | 330 +++++++++------------ 1 file changed, 137 insertions(+), 193 deletions(-) (limited to 'Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c') diff --git a/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c b/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c index ec1b5b7..c3cbdbf 100644 --- a/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c +++ b/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_conj_q31.c @@ -1,193 +1,137 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_cmplx_conj_q31.c - * Description: Q31 complex conjugate - * - * $Date: 23 April 2021 - * $Revision: V1.9.0 - * - * Target Processor: Cortex-M and Cortex-A cores - * -------------------------------------------------------------------- */ -/* - * Copyright (C) 2010-2021 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 "dsp/complex_math_functions.h" - -/** - @ingroup groupCmplxMath - */ - -/** - @addtogroup cmplx_conj - @{ - */ - -/** - @brief Q31 complex conjugate. - @param[in] pSrc points to the input vector - @param[out] pDst points to the output vector - @param[in] numSamples number of samples in each vector - @return none - - @par Scaling and Overflow Behavior - The function uses saturating arithmetic. - The Q31 value -1 (0x80000000) is saturated to the maximum allowable positive value 0x7FFFFFFF. - */ - -#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE) - -void arm_cmplx_conj_q31( - const q31_t * pSrc, - q31_t * pDst, - uint32_t numSamples) -{ - - uint32_t blockSize = numSamples * CMPLX_DIM; /* loop counters */ - uint32_t blkCnt; - q31x4x2_t vecSrc; - q31_t in; /* Temporary input variable */ - q31x4_t zero; - - zero = vdupq_n_s32(0); - - - /* Compute 4 real samples at a time */ - blkCnt = blockSize >> 3U; - - while (blkCnt > 0U) - { - - vecSrc = vld2q(pSrc); - vecSrc.val[1] = vqsubq(zero, vecSrc.val[1]); - vst2q(pDst,vecSrc); - /* - * Decrement the blkCnt loop counter - * Advance vector source and destination pointers - */ - pSrc += 8; - pDst += 8; - blkCnt --; - } - - /* Tail */ - blkCnt = (blockSize & 0x7) >> 1; - - while (blkCnt > 0U) - { - /* C[0] + jC[1] = A[0]+ j(-1)A[1] */ - - /* Calculate Complex Conjugate and store result in destination buffer. */ - *pDst++ = *pSrc++; - in = *pSrc++; - *pDst++ = __QSUB(0, in); - - /* Decrement loop counter */ - blkCnt--; - } - - -} -#else - -void arm_cmplx_conj_q31( - const q31_t * pSrc, - q31_t * pDst, - uint32_t numSamples) -{ - uint32_t blkCnt; /* Loop counter */ - q31_t in; /* Temporary input variable */ - -#if defined (ARM_MATH_LOOPUNROLL) - - /* Loop unrolling: Compute 4 outputs at a time */ - blkCnt = numSamples >> 2U; - - while (blkCnt > 0U) - { - /* C[0] + jC[1] = A[0]+ j(-1)A[1] */ - - /* Calculate Complex Conjugate and store result in destination buffer. */ - *pDst++ = *pSrc++; - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = __QSUB(0, in); -#else - *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; -#endif - - *pDst++ = *pSrc++; - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = __QSUB(0, in); -#else - *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; -#endif - - *pDst++ = *pSrc++; - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = __QSUB(0, in); -#else - *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; -#endif - - *pDst++ = *pSrc++; - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = __QSUB(0, in); -#else - *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; -#endif - - /* Decrement loop counter */ - blkCnt--; - } - - /* Loop unrolling: Compute remaining outputs */ - blkCnt = numSamples % 0x4U; - -#else - - /* Initialize blkCnt with number of samples */ - blkCnt = numSamples; - -#endif /* #if defined (ARM_MATH_LOOPUNROLL) */ - - while (blkCnt > 0U) - { - /* C[0] + jC[1] = A[0]+ j(-1)A[1] */ - - /* Calculate Complex Conjugate and store result in destination buffer. */ - *pDst++ = *pSrc++; - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = __QSUB(0, in); -#else - *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; -#endif - - /* Decrement loop counter */ - blkCnt--; - } - -} -#endif /* defined(ARM_MATH_MVEI) */ - -/** - @} end of cmplx_conj group - */ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_cmplx_conj_q31.c + * Description: Q31 complex conjugate + * + * $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 groupCmplxMath + */ + +/** + @addtogroup cmplx_conj + @{ + */ + +/** + @brief Q31 complex conjugate. + @param[in] pSrc points to the input vector + @param[out] pDst points to the output vector + @param[in] numSamples number of samples in each vector + @return none + + @par Scaling and Overflow Behavior + The function uses saturating arithmetic. + The Q31 value -1 (0x80000000) is saturated to the maximum allowable positive value 0x7FFFFFFF. + */ + +void arm_cmplx_conj_q31( + const q31_t * pSrc, + q31_t * pDst, + uint32_t numSamples) +{ + uint32_t blkCnt; /* Loop counter */ + q31_t in; /* Temporary input variable */ + +#if defined (ARM_MATH_LOOPUNROLL) + + /* Loop unrolling: Compute 4 outputs at a time */ + blkCnt = numSamples >> 2U; + + while (blkCnt > 0U) + { + /* C[0] + jC[1] = A[0]+ j(-1)A[1] */ + + /* Calculate Complex Conjugate and store result in destination buffer. */ + *pDst++ = *pSrc++; + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = __QSUB(0, in); +#else + *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; +#endif + + *pDst++ = *pSrc++; + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = __QSUB(0, in); +#else + *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; +#endif + + *pDst++ = *pSrc++; + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = __QSUB(0, in); +#else + *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; +#endif + + *pDst++ = *pSrc++; + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = __QSUB(0, in); +#else + *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; +#endif + + /* Decrement loop counter */ + blkCnt--; + } + + /* Loop unrolling: Compute remaining outputs */ + blkCnt = numSamples % 0x4U; + +#else + + /* Initialize blkCnt with number of samples */ + blkCnt = numSamples; + +#endif /* #if defined (ARM_MATH_LOOPUNROLL) */ + + while (blkCnt > 0U) + { + /* C[0] + jC[1] = A[0]+ j(-1)A[1] */ + + /* Calculate Complex Conjugate and store result in destination buffer. */ + *pDst++ = *pSrc++; + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = __QSUB(0, in); +#else + *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in; +#endif + + /* Decrement loop counter */ + blkCnt--; + } + +} + +/** + @} end of cmplx_conj group + */ -- cgit v1.2.3