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-rwxr-xr-xMiddlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c260
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diff --git a/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c
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+++ b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c
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+/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_cmplx_mult_cmplx_q15.c
+ * Description: Q15 complex-by-complex 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 "arm_compiler_specific.h"
+
+
+#include "dsp/complex_math_functions.h"
+
+/**
+ @ingroup groupCmplxMath
+ */
+
+/**
+ @addtogroup CmplxByCmplxMult
+ @{
+ */
+
+/**
+ @brief Q15 complex-by-complex 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] numSamples number of samples in each vector
+
+ @par Scaling and Overflow Behavior
+ The function implements 1.15 by 1.15 multiplications and finally output is converted into 3.13 format.
+ */
+
+#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
+
+ARM_DSP_ATTRIBUTE void arm_cmplx_mult_cmplx_q15(
+ const q15_t * pSrcA,
+ const q15_t * pSrcB,
+ q15_t * pDst,
+ uint32_t numSamples)
+{
+ int32_t blkCnt;
+ q15x8_t vecSrcA, vecSrcB;
+ q15x8_t vecSrcC, vecSrcD;
+ q15x8_t vecDst;
+
+ blkCnt = (numSamples >> 3);
+ blkCnt -= 1;
+ if (blkCnt > 0)
+ {
+ /* should give more freedom to generate stall free code */
+ vecSrcA = vld1q(pSrcA);
+ vecSrcB = vld1q(pSrcB);
+ pSrcA += 8;
+ pSrcB += 8;
+
+ while (blkCnt > 0)
+ {
+
+ /* C[2 * i] = A[2 * i] * B[2 * i] - A[2 * i + 1] * B[2 * i + 1]. */
+ vecDst = vqdmlsdhq(vuninitializedq_s16(), vecSrcA, vecSrcB);
+ vecSrcC = vld1q(pSrcA);
+ pSrcA += 8;
+
+ /* C[2 * i + 1] = A[2 * i] * B[2 * i + 1] + A[2 * i + 1] * B[2 * i]. */
+ vecDst = vqdmladhxq(vecDst, vecSrcA, vecSrcB);
+ vecSrcD = vld1q(pSrcB);
+ pSrcB += 8;
+
+ vstrhq_s16(pDst, vshrq(vecDst, 2));
+ pDst += 8;
+
+ vecDst = vqdmlsdhq(vuninitializedq_s16(), vecSrcC, vecSrcD);
+ vecSrcA = vld1q(pSrcA);
+ pSrcA += 8;
+
+ vecDst = vqdmladhxq(vecDst, vecSrcC, vecSrcD);
+ vecSrcB = vld1q(pSrcB);
+ pSrcB += 8;
+
+ vstrhq_s16(pDst, vshrq(vecDst, 2));
+ pDst += 8;
+
+ /*
+ * Decrement the blockSize loop counter
+ */
+ blkCnt--;
+ }
+
+ /* process last elements out of the loop avoid the armclang breaking the SW pipeline */
+ vecDst = vqdmlsdhq(vuninitializedq_s16(), vecSrcA, vecSrcB);
+ vecSrcC = vld1q(pSrcA);
+
+ vecDst = vqdmladhxq(vecDst, vecSrcA, vecSrcB);
+ vecSrcD = vld1q(pSrcB);
+
+ vstrhq_s16(pDst, vshrq(vecDst, 2));
+ pDst += 8;
+
+ vecDst = vqdmlsdhq(vuninitializedq_s16(), vecSrcC, vecSrcD);
+ vecDst = vqdmladhxq(vecDst, vecSrcC, vecSrcD);
+
+ vstrhq_s16(pDst, vshrq(vecDst, 2));
+ pDst += 8;
+
+ /*
+ * tail
+ */
+ blkCnt = CMPLX_DIM * (numSamples & 7);
+ do
+ {
+ mve_pred16_t p = vctp16q(blkCnt);
+
+ pSrcA += 8;
+ pSrcB += 8;
+
+ vecSrcA = vldrhq_z_s16(pSrcA, p);
+ vecSrcB = vldrhq_z_s16(pSrcB, p);
+
+ vecDst = vqdmlsdhq_m(vuninitializedq_s16(), vecSrcA, vecSrcB, p);
+ vecDst = vqdmladhxq_m(vecDst, vecSrcA, vecSrcB, p);
+
+ vecDst = vshrq_m(vuninitializedq_s16(), vecDst, 2, p);
+ vstrhq_p_s16(pDst, vecDst, p);
+ pDst += 8;
+
+ blkCnt -= 8;
+ }
+ while ((int32_t) blkCnt > 0);
+ }
+ else
+ {
+ blkCnt = numSamples * CMPLX_DIM;
+ while (blkCnt > 0) {
+ mve_pred16_t p = vctp16q(blkCnt);
+
+ vecSrcA = vldrhq_z_s16(pSrcA, p);
+ vecSrcB = vldrhq_z_s16(pSrcB, p);
+
+ vecDst = vqdmlsdhq_m(vuninitializedq_s16(), vecSrcA, vecSrcB, p);
+ vecDst = vqdmladhxq_m(vecDst, vecSrcA, vecSrcB, p);
+
+ vecDst = vshrq_m(vuninitializedq_s16(), vecDst, 2, p);
+ vstrhq_p_s16(pDst, vecDst, p);
+
+ pDst += 8;
+ pSrcA += 8;
+ pSrcB += 8;
+
+ blkCnt -= 8;
+ }
+ }
+}
+#else
+ARM_DSP_ATTRIBUTE void arm_cmplx_mult_cmplx_q15(
+ const q15_t * pSrcA,
+ const q15_t * pSrcB,
+ q15_t * pDst,
+ uint32_t numSamples)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q15_t a, b, c, d; /* Temporary variables */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = numSamples >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C[2 * i ] = A[2 * i] * B[2 * i ] - A[2 * i + 1] * B[2 * i + 1]. */
+ /* C[2 * i + 1] = A[2 * i] * B[2 * i + 1] + A[2 * i + 1] * B[2 * i ]. */
+
+ a = *pSrcA++;
+ b = *pSrcA++;
+ c = *pSrcB++;
+ d = *pSrcB++;
+ /* store result in 3.13 format in destination buffer. */
+ *pDst++ = (q15_t) ( (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17) );
+ *pDst++ = (q15_t) ( (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17) );
+
+ a = *pSrcA++;
+ b = *pSrcA++;
+ c = *pSrcB++;
+ d = *pSrcB++;
+ *pDst++ = (q15_t) ( (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17) );
+ *pDst++ = (q15_t) ( (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17) );
+
+ a = *pSrcA++;
+ b = *pSrcA++;
+ c = *pSrcB++;
+ d = *pSrcB++;
+ *pDst++ = (q15_t) ( (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17) );
+ *pDst++ = (q15_t) ( (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17) );
+
+ a = *pSrcA++;
+ b = *pSrcA++;
+ c = *pSrcB++;
+ d = *pSrcB++;
+ *pDst++ = (q15_t) ( (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17) );
+ *pDst++ = (q15_t) ( (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17) );
+
+ /* 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[2 * i ] = A[2 * i] * B[2 * i ] - A[2 * i + 1] * B[2 * i + 1]. */
+ /* C[2 * i + 1] = A[2 * i] * B[2 * i + 1] + A[2 * i + 1] * B[2 * i ]. */
+
+ a = *pSrcA++;
+ b = *pSrcA++;
+ c = *pSrcB++;
+ d = *pSrcB++;
+
+ /* store result in 3.13 format in destination buffer. */
+ *pDst++ = (q15_t) ( (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17) );
+ *pDst++ = (q15_t) ( (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17) );
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+#endif /* defined(ARM_MATH_MVEI) */
+
+/**
+ @} end of CmplxByCmplxMult group
+ */
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