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author | px4dev <px4@purgatory.org> | 2013-05-20 00:30:43 +0200 |
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committer | px4dev <px4@purgatory.org> | 2013-05-20 00:30:43 +0200 |
commit | 5576e321fa8cd027b15deeb15b7ca05541fde4fe (patch) | |
tree | b8a8dac6fab2ecdb72c90ece845112161a52997a /src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q15.c | |
parent | 3a1c9f14f68054537657851eacb60d930c3d4221 (diff) | |
download | px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.tar.gz px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.tar.bz2 px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.zip |
Use the new prebuilt-library support to wrap the ARM CMSIS DSP library, and update to the version shipped with CMSIS 3.0 r3p2
Diffstat (limited to 'src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q15.c')
-rw-r--r-- | src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q15.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q15.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q15.c deleted file mode 100644 index 623229b8f..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_q15.c +++ /dev/null @@ -1,140 +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_q15.c
-*
-* Description: Q15 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 Q15 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 1.15 by 1.15 multiplications and finally output is converted into 3.13 format.
- */
-
-void arm_cmplx_mag_squared_q15(
- q15_t * pSrc,
- q15_t * pDst,
- uint32_t numSamples)
-{
- q31_t acc0, acc1; /* Accumulators */
-
-#ifndef ARM_MATH_CM0
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
- uint32_t blkCnt; /* loop counter */
- q31_t in1, in2, in3, in4;
- q31_t acc2, acc3;
-
- /*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]) */
- in1 = *__SIMD32(pSrc)++;
- in2 = *__SIMD32(pSrc)++;
- in3 = *__SIMD32(pSrc)++;
- in4 = *__SIMD32(pSrc)++;
-
- acc0 = __SMUAD(in1, in1);
- acc1 = __SMUAD(in2, in2);
- acc2 = __SMUAD(in3, in3);
- acc3 = __SMUAD(in4, in4);
-
- /* store the result in 3.13 format in the destination buffer. */
- *pDst++ = (q15_t) (acc0 >> 17);
- *pDst++ = (q15_t) (acc1 >> 17);
- *pDst++ = (q15_t) (acc2 >> 17);
- *pDst++ = (q15_t) (acc3 >> 17);
-
- /* 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]) */
- in1 = *__SIMD32(pSrc)++;
- acc0 = __SMUAD(in1, in1);
-
- /* store the result in 3.13 format in the destination buffer. */
- *pDst++ = (q15_t) (acc0 >> 17);
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
-#else
-
- /* Run the below code for Cortex-M0 */
- q15_t real, imag; /* Temporary variables to store real and imaginary values */
-
- while(numSamples > 0u)
- {
- /* out = ((real * real) + (imag * imag)) */
- real = *pSrc++;
- imag = *pSrc++;
- acc0 = (real * real);
- acc1 = (imag * imag);
- /* store the result in 3.13 format in the destination buffer. */
- *pDst++ = (q15_t) (((q63_t) acc0 + acc1) >> 17);
-
- /* Decrement the loop counter */
- numSamples--;
- }
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
-}
-
-/**
- * @} end of cmplx_mag_squared group
- */
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