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_mult_q7.c | 287 +++++++++------------ 1 file changed, 119 insertions(+), 168 deletions(-) (limited to 'Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c') diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c index 7be80db..b50c109 100644 --- a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c @@ -1,168 +1,119 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_mult_q7.c - * Description: Q7 vector multiplication - * - * $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 BasicMult - @{ - */ - -/** - @brief Q7 vector multiplication - @param[in] pSrcA points to the first input vector - @param[in] pSrcB points to the second 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. - Results outside of the allowable Q7 range [0x80 0x7F] are saturated. - */ -#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE) - -#include "arm_helium_utils.h" - -void arm_mult_q7( - const q7_t * pSrcA, - const q7_t * pSrcB, - q7_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* loop counters */ - q7x16_t vecA, vecB; - - /* Compute 16 outputs at a time */ - blkCnt = blockSize >> 4; - while (blkCnt > 0U) - { - /* - * C = A * B - * Multiply the inputs and then store the results in the destination buffer. - */ - vecA = vld1q(pSrcA); - vecB = vld1q(pSrcB); - vst1q(pDst, vqdmulhq(vecA, vecB)); - /* - * Decrement the blockSize loop counter - */ - blkCnt--; - /* - * advance vector source and destination pointers - */ - pSrcA += 16; - pSrcB += 16; - pDst += 16; - } - /* - * tail - */ - blkCnt = blockSize & 0xF; - if (blkCnt > 0U) - { - mve_pred16_t p0 = vctp8q(blkCnt); - vecA = vld1q(pSrcA); - vecB = vld1q(pSrcB); - vstrbq_p(pDst, vqdmulhq(vecA, vecB), p0); - } -} - -#else -void arm_mult_q7( - const q7_t * pSrcA, - const q7_t * pSrcB, - q7_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* Loop counter */ - -#if defined (ARM_MATH_LOOPUNROLL) - -#if defined (ARM_MATH_DSP) - q7_t out1, out2, out3, out4; /* Temporary output variables */ -#endif - - /* Loop unrolling: Compute 4 outputs at a time */ - blkCnt = blockSize >> 2U; - - while (blkCnt > 0U) - { - /* C = A * B */ - -#if defined (ARM_MATH_DSP) - /* Multiply inputs and store results in temporary variables */ - out1 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - out2 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - out3 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - out4 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - - /* Pack and store result in destination buffer (in single write) */ - write_q7x4_ia (&pDst, __PACKq7(out1, out2, out3, out4)); -#else - *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); -#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 * B */ - - /* Multiply input and store result in destination buffer. */ - *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); - - /* Decrement loop counter */ - blkCnt--; - } - -} -#endif /* defined(ARM_MATH_MVEI) */ - -/** - @} end of BasicMult group - */ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_mult_q7.c + * Description: Q7 vector multiplication + * + * $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 BasicMult + @{ + */ + +/** + @brief Q7 vector multiplication + @param[in] pSrcA points to the first input vector + @param[in] pSrcB points to the second 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. + Results outside of the allowable Q7 range [0x80 0x7F] are saturated. + */ + +void arm_mult_q7( + const q7_t * pSrcA, + const q7_t * pSrcB, + q7_t * pDst, + uint32_t blockSize) +{ + uint32_t blkCnt; /* Loop counter */ + +#if defined (ARM_MATH_LOOPUNROLL) + +#if defined (ARM_MATH_DSP) + q7_t out1, out2, out3, out4; /* Temporary output variables */ +#endif + + /* Loop unrolling: Compute 4 outputs at a time */ + blkCnt = blockSize >> 2U; + + while (blkCnt > 0U) + { + /* C = A * B */ + +#if defined (ARM_MATH_DSP) + /* Multiply inputs and store results in temporary variables */ + out1 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + out2 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + out3 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + out4 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + + /* Pack and store result in destination buffer (in single write) */ + write_q7x4_ia (&pDst, __PACKq7(out1, out2, out3, out4)); +#else + *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); +#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 * B */ + + /* Multiply input and store result in destination buffer. */ + *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8); + + /* Decrement loop counter */ + blkCnt--; + } + +} + +/** + @} end of BasicMult group + */ -- cgit v1.2.3