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Diffstat (limited to 'apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_f32.c')
-rw-r--r-- | apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_f32.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_f32.c b/apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_f32.c deleted file mode 100644 index b77144a3e..000000000 --- a/apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_f32.c +++ /dev/null @@ -1,161 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_scale_f32.c
-*
-* Description: Multiplies a floating-point vector by a scalar.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated
-*
-* Version 0.0.7 2010/06/10
-* Misra-C changes done
-* ---------------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupMath
- */
-
-/**
- * @defgroup scale Vector Scale
- *
- * Multiply a vector by a scalar value. For floating-point data, the algorithm used is:
- *
- * <pre>
- * pDst[n] = pSrc[n] * scale, 0 <= n < blockSize.
- * </pre>
- *
- * In the fixed-point Q7, Q15, and Q31 functions, <code>scale</code> is represented by
- * a fractional multiplication <code>scaleFract</code> and an arithmetic shift <code>shift</code>.
- * The shift allows the gain of the scaling operation to exceed 1.0.
- * The algorithm used with fixed-point data is:
- *
- * <pre>
- * pDst[n] = (pSrc[n] * scaleFract) << shift, 0 <= n < blockSize.
- * </pre>
- *
- * The overall scale factor applied to the fixed-point data is
- * <pre>
- * scale = scaleFract * 2^shift.
- * </pre>
- */
-
-/**
- * @addtogroup scale
- * @{
- */
-
-/**
- * @brief Multiplies a floating-point vector by a scalar.
- * @param[in] *pSrc points to the input vector
- * @param[in] scale scale factor to be applied
- * @param[out] *pDst points to the output vector
- * @param[in] blockSize number of samples in the vector
- * @return none.
- */
-
-
-void arm_scale_f32(
- float32_t * pSrc,
- float32_t scale,
- float32_t * pDst,
- uint32_t blockSize)
-{
- uint32_t blkCnt; /* loop counter */
-#ifndef ARM_MATH_CM0
-
-/* Run the below code for Cortex-M4 and Cortex-M3 */
- float32_t in1, in2, in3, in4; /* temporary variabels */
-
- /*loop Unrolling */
- blkCnt = blockSize >> 2u;
-
- /* 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 = A * scale */
- /* Scale the input and then store the results in the destination buffer. */
- /* read input samples from source */
- in1 = *pSrc;
- in2 = *(pSrc + 1);
-
- /* multiply with scaling factor */
- in1 = in1 * scale;
-
- /* read input sample from source */
- in3 = *(pSrc + 2);
-
- /* multiply with scaling factor */
- in2 = in2 * scale;
-
- /* read input sample from source */
- in4 = *(pSrc + 3);
-
- /* multiply with scaling factor */
- in3 = in3 * scale;
- in4 = in4 * scale;
- /* store the result to destination */
- *pDst = in1;
- *(pDst + 1) = in2;
- *(pDst + 2) = in3;
- *(pDst + 3) = in4;
-
- /* update pointers to process next samples */
- pSrc += 4u;
- pDst += 4u;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
- /* If the blockSize is not a multiple of 4, compute any remaining output samples here.
- ** No loop unrolling is used. */
- blkCnt = blockSize % 0x4u;
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- /* Initialize blkCnt with number of samples */
- blkCnt = blockSize;
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
- while(blkCnt > 0u)
- {
- /* C = A * scale */
- /* Scale the input and then store the result in the destination buffer. */
- *pDst++ = (*pSrc++) * scale;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-}
-
-/**
- * @} end of scale group
- */
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