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_q15.c | 335 +++++++++------------ 1 file changed, 143 insertions(+), 192 deletions(-) (limited to 'Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c') diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c index 17951c7..270dc73 100644 --- a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c @@ -1,192 +1,143 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_mult_q15.c - * Description: Q15 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 Q15 vector multiplication - @param[in] pSrcA points to first input vector - @param[in] pSrcB points to second input vector - @param[out] pDst points to 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 Q15 range [0x8000 0x7FFF] are saturated. - */ -#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE) - -#include "arm_helium_utils.h" - -void arm_mult_q15( - const q15_t * pSrcA, - const q15_t * pSrcB, - q15_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* loop counters */ - q15x8_t vecA, vecB; - - /* Compute 8 outputs at a time */ - blkCnt = blockSize >> 3; - 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 += 8; - pSrcB += 8; - pDst += 8; - } - /* - * tail - */ - blkCnt = blockSize & 7; - if (blkCnt > 0U) - { - mve_pred16_t p0 = vctp16q(blkCnt); - vecA = vld1q(pSrcA); - vecB = vld1q(pSrcB); - vstrhq_p(pDst, vqdmulhq(vecA, vecB), p0); - } -} - -#else -void arm_mult_q15( - const q15_t * pSrcA, - const q15_t * pSrcB, - q15_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* Loop counter */ - -#if defined (ARM_MATH_LOOPUNROLL) - -#if defined (ARM_MATH_DSP) - q31_t inA1, inA2, inB1, inB2; /* Temporary input variables */ - q15_t out1, out2, out3, out4; /* Temporary output variables */ - q31_t mul1, mul2, mul3, mul4; /* Temporary variables */ -#endif - - /* Loop unrolling: Compute 4 outputs at a time */ - blkCnt = blockSize >> 2U; - - while (blkCnt > 0U) - { - /* C = A * B */ - -#if defined (ARM_MATH_DSP) - /* read 2 samples at a time from sourceA */ - inA1 = read_q15x2_ia (&pSrcA); - /* read 2 samples at a time from sourceB */ - inB1 = read_q15x2_ia (&pSrcB); - /* read 2 samples at a time from sourceA */ - inA2 = read_q15x2_ia (&pSrcA); - /* read 2 samples at a time from sourceB */ - inB2 = read_q15x2_ia (&pSrcB); - - /* multiply mul = sourceA * sourceB */ - mul1 = (q31_t) ((q15_t) (inA1 >> 16) * (q15_t) (inB1 >> 16)); - mul2 = (q31_t) ((q15_t) (inA1 ) * (q15_t) (inB1 )); - mul3 = (q31_t) ((q15_t) (inA2 >> 16) * (q15_t) (inB2 >> 16)); - mul4 = (q31_t) ((q15_t) (inA2 ) * (q15_t) (inB2 )); - - /* saturate result to 16 bit */ - out1 = (q15_t) __SSAT(mul1 >> 15, 16); - out2 = (q15_t) __SSAT(mul2 >> 15, 16); - out3 = (q15_t) __SSAT(mul3 >> 15, 16); - out4 = (q15_t) __SSAT(mul4 >> 15, 16); - - /* store result to destination */ -#ifndef ARM_MATH_BIG_ENDIAN - write_q15x2_ia (&pDst, __PKHBT(out2, out1, 16)); - write_q15x2_ia (&pDst, __PKHBT(out4, out3, 16)); -#else - write_q15x2_ia (&pDst, __PKHBT(out1, out2, 16)); - write_q15x2_ia (&pDst, __PKHBT(out3, out4, 16)); -#endif /* #ifndef ARM_MATH_BIG_ENDIAN */ - -#else - *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); - *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); - *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); - *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); -#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 inputs and store result in destination buffer. */ - *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); - - /* Decrement loop counter */ - blkCnt--; - } - -} -#endif /* defined(ARM_MATH_MVEI) */ - -/** - @} end of BasicMult group - */ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_mult_q15.c + * Description: Q15 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 Q15 vector multiplication + @param[in] pSrcA points to first input vector + @param[in] pSrcB points to second input vector + @param[out] pDst points to 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 Q15 range [0x8000 0x7FFF] are saturated. + */ + +void arm_mult_q15( + const q15_t * pSrcA, + const q15_t * pSrcB, + q15_t * pDst, + uint32_t blockSize) +{ + uint32_t blkCnt; /* Loop counter */ + +#if defined (ARM_MATH_LOOPUNROLL) + +#if defined (ARM_MATH_DSP) + q31_t inA1, inA2, inB1, inB2; /* Temporary input variables */ + q15_t out1, out2, out3, out4; /* Temporary output variables */ + q31_t mul1, mul2, mul3, mul4; /* Temporary variables */ +#endif + + /* Loop unrolling: Compute 4 outputs at a time */ + blkCnt = blockSize >> 2U; + + while (blkCnt > 0U) + { + /* C = A * B */ + +#if defined (ARM_MATH_DSP) + /* read 2 samples at a time from sourceA */ + inA1 = read_q15x2_ia ((q15_t **) &pSrcA); + /* read 2 samples at a time from sourceB */ + inB1 = read_q15x2_ia ((q15_t **) &pSrcB); + /* read 2 samples at a time from sourceA */ + inA2 = read_q15x2_ia ((q15_t **) &pSrcA); + /* read 2 samples at a time from sourceB */ + inB2 = read_q15x2_ia ((q15_t **) &pSrcB); + + /* multiply mul = sourceA * sourceB */ + mul1 = (q31_t) ((q15_t) (inA1 >> 16) * (q15_t) (inB1 >> 16)); + mul2 = (q31_t) ((q15_t) (inA1 ) * (q15_t) (inB1 )); + mul3 = (q31_t) ((q15_t) (inA2 >> 16) * (q15_t) (inB2 >> 16)); + mul4 = (q31_t) ((q15_t) (inA2 ) * (q15_t) (inB2 )); + + /* saturate result to 16 bit */ + out1 = (q15_t) __SSAT(mul1 >> 15, 16); + out2 = (q15_t) __SSAT(mul2 >> 15, 16); + out3 = (q15_t) __SSAT(mul3 >> 15, 16); + out4 = (q15_t) __SSAT(mul4 >> 15, 16); + + /* store result to destination */ +#ifndef ARM_MATH_BIG_ENDIAN + write_q15x2_ia (&pDst, __PKHBT(out2, out1, 16)); + write_q15x2_ia (&pDst, __PKHBT(out4, out3, 16)); +#else + write_q15x2_ia (&pDst, __PKHBT(out1, out2, 16)); + write_q15x2_ia (&pDst, __PKHBT(out3, out4, 16)); +#endif /* #ifndef ARM_MATH_BIG_ENDIAN */ + +#else + *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); + *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); + *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); + *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); +#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 inputs and store result in destination buffer. */ + *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16); + + /* Decrement loop counter */ + blkCnt--; + } + +} + +/** + @} end of BasicMult group + */ -- cgit v1.2.3