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diff --git a/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q15.c b/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q15.c
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-/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2014 ARM Limited. All rights reserved.
-*
-* $Date: 19. March 2015
-* $Revision: V.1.4.5
-*
-* Project: CMSIS DSP Library
-* Title: arm_mat_scale_q15.c
-*
-* Description: Multiplies a Q15 matrix by a scalar.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions
-* are met:
-* - Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* - Redistributions in binary form must reproduce the above copyright
-* notice, this list of conditions and the following disclaimer in
-* the documentation and/or other materials provided with the
-* distribution.
-* - Neither the name of ARM LIMITED nor the names of its contributors
-* may be used to endorse or promote products derived from this
-* software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupMatrix
- */
-
-/**
- * @addtogroup MatrixScale
- * @{
- */
-
-/**
- * @brief Q15 matrix scaling.
- * @param[in] *pSrc points to input matrix
- * @param[in] scaleFract fractional portion of the scale factor
- * @param[in] shift number of bits to shift the result by
- * @param[out] *pDst points to output matrix structure
- * @return The function returns either
- * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
- *
- * @details
- * <b>Scaling and Overflow Behavior:</b>
- * \par
- * The input data <code>*pSrc</code> and <code>scaleFract</code> are in 1.15 format.
- * These are multiplied to yield a 2.30 intermediate result and this is shifted with saturation to 1.15 format.
- */
-
-arm_status arm_mat_scale_q15(
- const arm_matrix_instance_q15 * pSrc,
- q15_t scaleFract,
- int32_t shift,
- arm_matrix_instance_q15 * pDst)
-{
- q15_t *pIn = pSrc->pData; /* input data matrix pointer */
- q15_t *pOut = pDst->pData; /* output data matrix pointer */
- uint32_t numSamples; /* total number of elements in the matrix */
- int32_t totShift = 15 - shift; /* total shift to apply after scaling */
- uint32_t blkCnt; /* loop counters */
- arm_status status; /* status of matrix scaling */
-
-#ifndef ARM_MATH_CM0_FAMILY
-
- q15_t in1, in2, in3, in4;
- q31_t out1, out2, out3, out4;
- q31_t inA1, inA2;
-
-#endif // #ifndef ARM_MATH_CM0_FAMILY
-
-#ifdef ARM_MATH_MATRIX_CHECK
- /* Check for matrix mismatch */
- if((pSrc->numRows != pDst->numRows) || (pSrc->numCols != pDst->numCols))
- {
- /* Set status as ARM_MATH_SIZE_MISMATCH */
- status = ARM_MATH_SIZE_MISMATCH;
- }
- else
-#endif // #ifdef ARM_MATH_MATRIX_CHECK
- {
- /* Total number of samples in the input matrix */
- numSamples = (uint32_t) pSrc->numRows * pSrc->numCols;
-
-#ifndef ARM_MATH_CM0_FAMILY
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
- /* Loop Unrolling */
- blkCnt = numSamples >> 2;
-
- /* First part of the processing with loop unrolling. Compute 4 outputs at a time.
- ** a second loop below computes the remaining 1 to 3 samples. */
- while(blkCnt > 0u)
- {
- /* C(m,n) = A(m,n) * k */
- /* Scale, saturate and then store the results in the destination buffer. */
- /* Reading 2 inputs from memory */
- inA1 = _SIMD32_OFFSET(pIn);
- inA2 = _SIMD32_OFFSET(pIn + 2);
-
- /* C = A * scale */
- /* Scale the inputs and then store the 2 results in the destination buffer
- * in single cycle by packing the outputs */
- out1 = (q31_t) ((q15_t) (inA1 >> 16) * scaleFract);
- out2 = (q31_t) ((q15_t) inA1 * scaleFract);
- out3 = (q31_t) ((q15_t) (inA2 >> 16) * scaleFract);
- out4 = (q31_t) ((q15_t) inA2 * scaleFract);
-
- out1 = out1 >> totShift;
- inA1 = _SIMD32_OFFSET(pIn + 4);
- out2 = out2 >> totShift;
- inA2 = _SIMD32_OFFSET(pIn + 6);
- out3 = out3 >> totShift;
- out4 = out4 >> totShift;
-
- in1 = (q15_t) (__SSAT(out1, 16));
- in2 = (q15_t) (__SSAT(out2, 16));
- in3 = (q15_t) (__SSAT(out3, 16));
- in4 = (q15_t) (__SSAT(out4, 16));
-
- _SIMD32_OFFSET(pOut) = __PKHBT(in2, in1, 16);
- _SIMD32_OFFSET(pOut + 2) = __PKHBT(in4, in3, 16);
-
- /* update pointers to process next sampels */
- pIn += 4u;
- pOut += 4u;
-
-
- /* Decrement the numSamples loop counter */
- blkCnt--;
- }
-
- /* If the numSamples is not a multiple of 4, compute any remaining output samples here.
- ** No loop unrolling is used. */
- blkCnt = numSamples % 0x4u;
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- /* Initialize blkCnt with number of samples */
- blkCnt = numSamples;
-
-#endif /* #ifndef ARM_MATH_CM0_FAMILY */
-
- while(blkCnt > 0u)
- {
- /* C(m,n) = A(m,n) * k */
- /* Scale, saturate and then store the results in the destination buffer. */
- *pOut++ =
- (q15_t) (__SSAT(((q31_t) (*pIn++) * scaleFract) >> totShift, 16));
-
- /* Decrement the numSamples loop counter */
- blkCnt--;
- }
- /* Set status as ARM_MATH_SUCCESS */
- status = ARM_MATH_SUCCESS;
- }
-
- /* Return to application */
- return (status);
-}
-
-/**
- * @} end of MatrixScale group
- */
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