diff options
Diffstat (limited to 'src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q31.c')
| -rw-r--r-- | src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q31.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q31.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q31.c deleted file mode 100644 index e5e124125..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/MatrixFunctions/arm_mat_scale_q31.c +++ /dev/null @@ -1,201 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_mat_scale_q31.c
-*
-* Description: Multiplies a Q31 matrix 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 0.0.5 2010/04/26
-* incorporated review comments and updated with latest CMSIS layer
-*
-* Version 0.0.3 2010/03/10
-* Initial version
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupMatrix
- */
-
-/**
- * @addtogroup MatrixScale
- * @{
- */
-
-/**
- * @brief Q31 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 1.31 format.
- * These are multiplied to yield a 2.62 intermediate result and this is shifted with saturation to 1.31 format.
- */
-
-arm_status arm_mat_scale_q31(
- const arm_matrix_instance_q31 * pSrc,
- q31_t scaleFract,
- int32_t shift,
- arm_matrix_instance_q31 * pDst)
-{
- q31_t *pIn = pSrc->pData; /* input data matrix pointer */
- q31_t *pOut = pDst->pData; /* output data matrix pointer */
- uint32_t numSamples; /* total number of elements in the matrix */
- int32_t totShift = shift + 1; /* shift to apply after scaling */
- uint32_t blkCnt; /* loop counters */
- arm_status status; /* status of matrix scaling */
- q31_t in1, in2, out1; /* temporary variabels */
-
-#ifndef ARM_MATH_CM0
-
- q31_t in3, in4, out2, out3, out4; /* temporary variables */
-
-#endif // #ifndef ARM_MAT_CM0
-
-#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
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
-
- /* Loop Unrolling */
- blkCnt = numSamples >> 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(m,n) = A(m,n) * k */
- /* Read values from input */
- in1 = *pIn;
- in2 = *(pIn + 1);
- in3 = *(pIn + 2);
- in4 = *(pIn + 3);
-
- /* multiply input with scaler value */
- in1 = ((q63_t) in1 * scaleFract) >> 32;
- in2 = ((q63_t) in2 * scaleFract) >> 32;
- in3 = ((q63_t) in3 * scaleFract) >> 32;
- in4 = ((q63_t) in4 * scaleFract) >> 32;
-
- /* apply shifting */
- out1 = in1 << totShift;
- out2 = in2 << totShift;
-
- /* saturate the results. */
- if(in1 != (out1 >> totShift))
- out1 = 0x7FFFFFFF ^ (in1 >> 31);
-
- if(in2 != (out2 >> totShift))
- out2 = 0x7FFFFFFF ^ (in2 >> 31);
-
- out3 = in3 << totShift;
- out4 = in4 << totShift;
-
- *pOut = out1;
- *(pOut + 1) = out2;
-
- if(in3 != (out3 >> totShift))
- out3 = 0x7FFFFFFF ^ (in3 >> 31);
-
- if(in4 != (out4 >> totShift))
- out4 = 0x7FFFFFFF ^ (in4 >> 31);
-
-
- *(pOut + 2) = out3;
- *(pOut + 3) = out4;
-
- /* 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 */
-
- while(blkCnt > 0u)
- {
- /* C(m,n) = A(m,n) * k */
- /* Scale, saturate and then store the results in the destination buffer. */
- in1 = *pIn++;
-
- in2 = ((q63_t) in1 * scaleFract) >> 32;
-
- out1 = in2 << totShift;
-
- if(in2 != (out1 >> totShift))
- out1 = 0x7FFFFFFF ^ (in2 >> 31);
-
- *pOut++ = out1;
-
- /* 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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