diff options
Diffstat (limited to 'apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_q7.c')
-rw-r--r-- | apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_q7.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_q7.c b/apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_q7.c deleted file mode 100644 index 76c35e656..000000000 --- a/apps/mathlib/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_scale_q7.c +++ /dev/null @@ -1,144 +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_q7.c
-*
-* Description: Multiplies a Q7 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
- */
-
-/**
- * @addtogroup scale
- * @{
- */
-
-/**
- * @brief Multiplies a Q7 vector by a scalar.
- * @param[in] *pSrc points to the input vector
- * @param[in] scaleFract fractional portion of the scale value
- * @param[in] shift number of bits to shift the result by
- * @param[out] *pDst points to the output vector
- * @param[in] blockSize number of samples in the vector
- * @return none.
- *
- * <b>Scaling and Overflow Behavior:</b>
- * \par
- * The input data <code>*pSrc</code> and <code>scaleFract</code> are in 1.7 format.
- * These are multiplied to yield a 2.14 intermediate result and this is shifted with saturation to 1.7 format.
- */
-
-void arm_scale_q7(
- q7_t * pSrc,
- q7_t scaleFract,
- int8_t shift,
- q7_t * pDst,
- uint32_t blockSize)
-{
- int8_t kShift = 7 - shift; /* shift to apply after scaling */
- uint32_t blkCnt; /* loop counter */
-
-#ifndef ARM_MATH_CM0
-
-/* Run the below code for Cortex-M4 and Cortex-M3 */
- q7_t in1, in2, in3, in4, out1, out2, out3, out4; /* Temporary variables to store input & output */
-
-
- /*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)
- {
- /* Reading 4 inputs from memory */
- in1 = *pSrc++;
- in2 = *pSrc++;
- in3 = *pSrc++;
- in4 = *pSrc++;
-
- /* C = A * scale */
- /* Scale the inputs and then store the results in the temporary variables. */
- out1 = (q7_t) (__SSAT(((in1) * scaleFract) >> kShift, 8));
- out2 = (q7_t) (__SSAT(((in2) * scaleFract) >> kShift, 8));
- out3 = (q7_t) (__SSAT(((in3) * scaleFract) >> kShift, 8));
- out4 = (q7_t) (__SSAT(((in4) * scaleFract) >> kShift, 8));
-
- /* Packing the individual outputs into 32bit and storing in
- * destination buffer in single write */
- *__SIMD32(pDst)++ = __PACKq7(out1, out2, out3, out4);
-
- /* 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;
-
- while(blkCnt > 0u)
- {
- /* C = A * scale */
- /* Scale the input and then store the result in the destination buffer. */
- *pDst++ = (q7_t) (__SSAT(((*pSrc++) * scaleFract) >> kShift, 8));
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- /* Initialize blkCnt with number of samples */
- blkCnt = blockSize;
-
- while(blkCnt > 0u)
- {
- /* C = A * scale */
- /* Scale the input and then store the result in the destination buffer. */
- *pDst++ = (q7_t) (__SSAT((((q15_t) * pSrc++ * scaleFract) >> kShift), 8));
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
-}
-
-/**
- * @} end of scale group
- */
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