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diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
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+++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
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+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_shift_q15.c
+ * Description:  Shifts the elements of a Q15 vector by a specified number of bits
+ *
+ * $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 BasicShift
+  @{
+ */
+
+/**
+  @brief         Shifts the elements of a Q15 vector a specified number of bits
+  @param[in]     pSrc       points to the input vector
+  @param[in]     shiftBits  number of bits to shift.  A positive value shifts left; a negative value shifts right.
+  @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 Q15 range [0x8000 0x7FFF] are saturated.
+ */
+
+#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
+
+#include "arm_helium_utils.h"
+
+void arm_shift_q15(
+    const q15_t * pSrc,
+    int8_t shiftBits,
+    q15_t * pDst,
+    uint32_t blockSize)
+{
+    uint32_t  blkCnt;           /* loop counters */
+    q15x8_t vecSrc;
+    q15x8_t vecDst;
+
+    /* Compute 8 outputs at a time */
+    blkCnt = blockSize >> 3;
+    while (blkCnt > 0U)
+    {
+        /*
+         * C = A (>> or <<) shiftBits
+         * Shift the input and then store the result in the destination buffer.
+         */
+        vecSrc = vld1q(pSrc);
+        vecDst = vqshlq_r(vecSrc, shiftBits);
+        vst1q(pDst, vecDst);
+        /*
+         * Decrement the blockSize loop counter
+         */
+        blkCnt--;
+        /*
+         * advance vector source and destination pointers
+         */
+        pSrc += 8;
+        pDst += 8;
+    }
+    /*
+     * tail
+     */
+    blkCnt = blockSize & 7;
+    if (blkCnt > 0U)
+    {
+        mve_pred16_t p0 = vctp16q(blkCnt);
+        vecSrc = vld1q(pSrc);
+        vecDst = vqshlq_r(vecSrc, shiftBits);
+        vstrhq_p(pDst, vecDst, p0);
+    }
+}
+
+#else
+void arm_shift_q15(
+  const q15_t * pSrc,
+        int8_t shiftBits,
+        q15_t * pDst,
+        uint32_t blockSize)
+{
+        uint32_t blkCnt;                               /* Loop counter */
+        uint8_t sign = (shiftBits & 0x80);             /* Sign of shiftBits */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+  q15_t in1, in2;                                /* Temporary input variables */
+#endif
+
+  /* Loop unrolling: Compute 4 outputs at a time */
+  blkCnt = blockSize >> 2U;
+
+  /* If the shift value is positive then do right shift else left shift */
+  if (sign == 0U)
+  {
+    while (blkCnt > 0U)
+    {
+      /* C = A << shiftBits */
+
+#if defined (ARM_MATH_DSP)
+      /* read 2 samples from source */
+      in1 = *pSrc++;
+      in2 = *pSrc++;
+
+      /* Shift the inputs and then store the results in the destination buffer. */
+#ifndef ARM_MATH_BIG_ENDIAN
+      write_q15x2_ia (&pDst, __PKHBT(__SSAT(((q31_t) in1 << shiftBits), 16),
+                                     __SSAT(((q31_t) in2 << shiftBits), 16), 16));
+#else
+      write_q15x2_ia (&pDst, __PKHBT(__SSAT(((q31_t) in2 << shiftBits), 16),
+                                      __SSAT(((q31_t) in1 << shiftBits), 16), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+      /* read 2 samples from source */
+      in1 = *pSrc++;
+      in2 = *pSrc++;
+
+#ifndef ARM_MATH_BIG_ENDIAN
+      write_q15x2_ia (&pDst, __PKHBT(__SSAT(((q31_t) in1 << shiftBits), 16),
+                                     __SSAT(((q31_t) in2 << shiftBits), 16), 16));
+#else
+      write_q15x2_ia (&pDst, __PKHBT(__SSAT(((q31_t) in2 << shiftBits), 16),
+                                     __SSAT(((q31_t) in1 << shiftBits), 16), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+#else
+      *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+      *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+      *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+      *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+#endif
+
+      /* Decrement loop counter */
+      blkCnt--;
+    }
+  }
+  else
+  {
+    while (blkCnt > 0U)
+    {
+      /* C = A >> shiftBits */
+
+#if defined (ARM_MATH_DSP)
+      /* read 2 samples from source */
+      in1 = *pSrc++;
+      in2 = *pSrc++;
+
+      /* Shift the inputs and then store the results in the destination buffer. */
+#ifndef ARM_MATH_BIG_ENDIAN
+      write_q15x2_ia (&pDst, __PKHBT((in1 >> -shiftBits),
+                                     (in2 >> -shiftBits), 16));
+#else
+      write_q15x2_ia (&pDst, __PKHBT((in2 >> -shiftBits),
+                                     (in1 >> -shiftBits), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+      /* read 2 samples from source */
+      in1 = *pSrc++;
+      in2 = *pSrc++;
+
+#ifndef ARM_MATH_BIG_ENDIAN
+      write_q15x2_ia (&pDst, __PKHBT((in1 >> -shiftBits),
+                                     (in2 >> -shiftBits), 16));
+#else
+      write_q15x2_ia (&pDst, __PKHBT((in2 >> -shiftBits),
+                                     (in1 >> -shiftBits), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+#else
+      *pDst++ = (*pSrc++ >> -shiftBits);
+      *pDst++ = (*pSrc++ >> -shiftBits);
+      *pDst++ = (*pSrc++ >> -shiftBits);
+      *pDst++ = (*pSrc++ >> -shiftBits);
+#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) */
+
+  /* If the shift value is positive then do right shift else left shift */
+  if (sign == 0U)
+  {
+    while (blkCnt > 0U)
+    {
+      /* C = A << shiftBits */
+
+      /* Shift input and store result in destination buffer. */
+      *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+
+      /* Decrement loop counter */
+      blkCnt--;
+    }
+  }
+  else
+  {
+    while (blkCnt > 0U)
+    {
+      /* C = A >> shiftBits */
+
+      /* Shift input and store result in destination buffer. */
+      *pDst++ = (*pSrc++ >> -shiftBits);
+
+      /* Decrement loop counter */
+      blkCnt--;
+    }
+  }
+
+}
+#endif /* defined(ARM_MATH_MVEI) */
+
+/**
+  @} end of BasicShift group
+ */