diff options
Diffstat (limited to 'apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q31.c')
-rw-r--r-- | apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q31.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q31.c b/apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q31.c deleted file mode 100644 index d45ccfab2..000000000 --- a/apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q31.c +++ /dev/null @@ -1,153 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_cmplx_mag_squared_q31.c
-*
-* Description: Q31 complex magnitude squared.
-*
-* 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.
-* ---------------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupCmplxMath
- */
-
-/**
- * @addtogroup cmplx_mag_squared
- * @{
- */
-
-
-/**
- * @brief Q31 complex magnitude squared
- * @param *pSrc points to the complex input vector
- * @param *pDst points to the real output vector
- * @param numSamples number of complex samples in the input vector
- * @return none.
- *
- * <b>Scaling and Overflow Behavior:</b>
- * \par
- * The function implements 1.31 by 1.31 multiplications and finally output is converted into 3.29 format.
- * Input down scaling is not required.
- */
-
-void arm_cmplx_mag_squared_q31(
- q31_t * pSrc,
- q31_t * pDst,
- uint32_t numSamples)
-{
- q31_t real, imag; /* Temporary variables to store real and imaginary values */
- q31_t acc0, acc1; /* Accumulators */
-
-#ifndef ARM_MATH_CM0
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
- uint32_t blkCnt; /* loop counter */
-
- /* 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[0] = (A[0] * A[0] + A[1] * A[1]) */
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (q31_t) (((q63_t) real * real) >> 33);
- acc1 = (q31_t) (((q63_t) imag * imag) >> 33);
- /* store the result in 3.29 format in the destination buffer. */
- *pDst++ = acc0 + acc1;
-
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (q31_t) (((q63_t) real * real) >> 33);
- acc1 = (q31_t) (((q63_t) imag * imag) >> 33);
- /* store the result in 3.29 format in the destination buffer. */
- *pDst++ = acc0 + acc1;
-
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (q31_t) (((q63_t) real * real) >> 33);
- acc1 = (q31_t) (((q63_t) imag * imag) >> 33);
- /* store the result in 3.29 format in the destination buffer. */
- *pDst++ = acc0 + acc1;
-
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (q31_t) (((q63_t) real * real) >> 33);
- acc1 = (q31_t) (((q63_t) imag * imag) >> 33);
- /* store the result in 3.29 format in the destination buffer. */
- *pDst++ = acc0 + acc1;
-
- /* Decrement the 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;
-
- while(blkCnt > 0u)
- {
- /* C[0] = (A[0] * A[0] + A[1] * A[1]) */
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (q31_t) (((q63_t) real * real) >> 33);
- acc1 = (q31_t) (((q63_t) imag * imag) >> 33);
- /* store the result in 3.29 format in the destination buffer. */
- *pDst++ = acc0 + acc1;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- while(numSamples > 0u)
- {
- /* out = ((real * real) + (imag * imag)) */
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (q31_t) (((q63_t) real * real) >> 33);
- acc1 = (q31_t) (((q63_t) imag * imag) >> 33);
- /* store the result in 3.29 format in the destination buffer. */
- *pDst++ = acc0 + acc1;
-
- /* Decrement the loop counter */
- numSamples--;
- }
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
-}
-
-/**
- * @} end of cmplx_mag_squared group
- */
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