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 --- .../DSP/Source/BasicMathFunctions/arm_abs_q31.c | 340 ++++++++------------- 1 file changed, 132 insertions(+), 208 deletions(-) (limited to 'Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c') diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c index 7043aa0..e9d027a 100644 --- a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c @@ -1,208 +1,132 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_abs_q31.c - * Description: Q31 vector absolute value - * - * $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/basic_math_functions.h" - -/** - @ingroup groupMath - */ - -/** - @addtogroup BasicAbs - @{ - */ - -/** - @brief Q31 vector absolute value. - @param[in] pSrc points to the input vector - @param[out] pDst points to the output vector - @param[in] blockSize number of samples in each vector - @return none - - @par Scaling and Overflow Behavior - The function uses saturating arithmetic. - The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF. - */ - -#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE) - -#include "arm_helium_utils.h" - -void arm_abs_q31( - const q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* Loop counters */ - q31x4_t vecSrc; - - /* Compute 4 outputs at a time */ - blkCnt = blockSize >> 2; - - while (blkCnt > 0U) - { - /* - * C = |A| - * Calculate absolute and then store the results in the destination buffer. - */ - vecSrc = vld1q(pSrc); - vst1q(pDst, vqabsq(vecSrc)); - /* - * Decrement the blockSize loop counter - */ - blkCnt--; - /* - * Advance vector source and destination pointers - */ - pSrc += 4; - pDst += 4; - } - /* - * Tail - */ - blkCnt = blockSize & 3; - - if (blkCnt > 0U) - { - mve_pred16_t p0 = vctp32q(blkCnt); - vecSrc = vld1q(pSrc); - vstrwq_p(pDst, vqabsq(vecSrc), p0); - } -} - -#else -void arm_abs_q31( - const q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* Loop counter */ - q31_t in; /* Temporary variable */ - -#if defined(ARM_MATH_NEON) - int32x4_t vec1; - int32x4_t res; - - /* Compute 4 outputs at a time */ - blkCnt = blockSize >> 2U; - - while (blkCnt > 0U) - { - /* C = |A| */ - /* Calculate absolute and then store the results in the destination buffer. */ - - vec1 = vld1q_s32(pSrc); - res = vqabsq_s32(vec1); - vst1q_s32(pDst, res); - - /* Increment pointers */ - pSrc += 4; - pDst += 4; - - /* Decrement the blockSize loop counter */ - blkCnt--; - } - - /* Tail */ - blkCnt = blockSize & 0x3; - -#else -#if defined (ARM_MATH_LOOPUNROLL) - - /* Loop unrolling: Compute 4 outputs at a time */ - blkCnt = blockSize >> 2U; - - while (blkCnt > 0U) - { - /* C = |A| */ - - /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and store result in destination buffer. */ - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); -#else - *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); -#endif - - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); -#else - *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); -#endif - - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); -#else - *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); -#endif - - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); -#else - *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); -#endif - - /* Decrement loop counter */ - blkCnt--; - } - - /* Loop unrolling: Compute remaining outputs */ - blkCnt = blockSize % 0x4U; - -#else - - /* Initialize blkCnt with number of samples */ - blkCnt = blockSize; - -#endif /* #if defined (ARM_MATH_LOOPUNROLL) */ -#endif /* #if defined (ARM_MATH_NEON) */ - - while (blkCnt > 0U) - { - /* C = |A| */ - - /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and store result in destination buffer. */ - in = *pSrc++; -#if defined (ARM_MATH_DSP) - *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); -#else - *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); -#endif - - /* Decrement loop counter */ - blkCnt--; - } - -} -#endif /* #if defined (ARM_MATH_MVEI) */ -/** - @} end of BasicAbs group - */ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_abs_q31.c + * Description: Q31 vector absolute value + * + * $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 groupMath + */ + +/** + @addtogroup BasicAbs + @{ + */ + +/** + @brief Q31 vector absolute value. + @param[in] pSrc points to the input vector + @param[out] pDst points to the output vector + @param[in] blockSize number of samples in each vector + @return none + + @par Scaling and Overflow Behavior + The function uses saturating arithmetic. + The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF. + */ + +void arm_abs_q31( + const q31_t * pSrc, + q31_t * pDst, + uint32_t blockSize) +{ + uint32_t blkCnt; /* Loop counter */ + q31_t in; /* Temporary variable */ + +#if defined (ARM_MATH_LOOPUNROLL) + + /* Loop unrolling: Compute 4 outputs at a time */ + blkCnt = blockSize >> 2U; + + while (blkCnt > 0U) + { + /* C = |A| */ + + /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and store result in destination buffer. */ + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); +#else + *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); +#endif + + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); +#else + *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); +#endif + + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); +#else + *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); +#endif + + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); +#else + *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); +#endif + + /* Decrement loop counter */ + blkCnt--; + } + + /* Loop unrolling: Compute remaining outputs */ + blkCnt = blockSize % 0x4U; + +#else + + /* Initialize blkCnt with number of samples */ + blkCnt = blockSize; + +#endif /* #if defined (ARM_MATH_LOOPUNROLL) */ + + while (blkCnt > 0U) + { + /* C = |A| */ + + /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and store result in destination buffer. */ + in = *pSrc++; +#if defined (ARM_MATH_DSP) + *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in); +#else + *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in); +#endif + + /* Decrement loop counter */ + blkCnt--; + } + +} + +/** + @} end of BasicAbs group + */ -- cgit v1.2.3