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Diffstat (limited to 'Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f16.c')
| -rwxr-xr-x | Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f16.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f16.c b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f16.c new file mode 100755 index 0000000..6e6848c --- /dev/null +++ b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f16.c @@ -0,0 +1,153 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_cmplx_mag_squared_f16.c + * Description: Floating-point complex magnitude squared + * + * $Date: 23 April 2021 + * $Revision: V1.9.0 + * + * Target Processor: Cortex-M and Cortex-A cores + * -------------------------------------------------------------------- */ + +/* + * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "arm_compiler_specific.h" + + +#include "dsp/complex_math_functions_f16.h" + +#if defined(ARM_FLOAT16_SUPPORTED) + +/** + @ingroup groupCmplxMath + */ + + +/** + @addtogroup cmplx_mag_squared + @{ + */ + +/** + @brief Floating-point complex magnitude squared. + @param[in] pSrc points to input vector + @param[out] pDst points to output vector + @param[in] numSamples number of samples in each vector + */ + +#if defined(ARM_MATH_MVE_FLOAT16) && !defined(ARM_MATH_AUTOVECTORIZE) + +ARM_DSP_ATTRIBUTE void arm_cmplx_mag_squared_f16( + const float16_t * pSrc, + float16_t * pDst, + uint32_t numSamples) +{ + int32_t blockSize = numSamples; /* loop counters */ + f16x8x2_t vecSrc; + f16x8_t sum; + + /* Compute 4 complex samples at a time */ + while (blockSize > 0) + { + mve_pred16_t p = vctp16q(blockSize); + vecSrc = vld2q(pSrc); + sum = vmulq_m(vuninitializedq_f16(),vecSrc.val[0], vecSrc.val[0],p); + sum = vfmaq_m(sum, vecSrc.val[1], vecSrc.val[1],p); + vstrhq_p_f16(pDst, sum,p); + + pSrc += 16; + pDst += 8; + + /* + * Decrement the blockSize loop counter + */ + blockSize-= 8; + } + +} + +#else +ARM_DSP_ATTRIBUTE void arm_cmplx_mag_squared_f16( + const float16_t * pSrc, + float16_t * pDst, + uint32_t numSamples) +{ + uint32_t blkCnt; /* Loop counter */ + _Float16 real, imag; /* Temporary input variables */ + +#if defined (ARM_MATH_LOOPUNROLL) && !defined(ARM_MATH_AUTOVECTORIZE) + + /* Loop unrolling: Compute 4 outputs at a time */ + blkCnt = numSamples >> 2U; + + while (blkCnt > 0U) + { + /* C[0] = (A[0] * A[0] + A[1] * A[1]) */ + + real = *pSrc++; + imag = *pSrc++; + *pDst++ = (real * real) + (imag * imag); + + real = *pSrc++; + imag = *pSrc++; + *pDst++ = (real * real) + (imag * imag); + + real = *pSrc++; + imag = *pSrc++; + *pDst++ = (real * real) + (imag * imag); + + real = *pSrc++; + imag = *pSrc++; + *pDst++ = (real * real) + (imag * imag); + + /* Decrement loop counter */ + blkCnt--; + } + + /* Loop unrolling: Compute remaining outputs */ + blkCnt = numSamples % 0x4U; + +#else + + /* Initialize blkCnt with number of samples */ + blkCnt = numSamples; + +#endif /* #if defined (ARM_MATH_LOOPUNROLL) */ + + while (blkCnt > 0U) + { + /* C[0] = (A[0] * A[0] + A[1] * A[1]) */ + + real = *pSrc++; + imag = *pSrc++; + + /* store result in destination buffer. */ + *pDst++ = (real * real) + (imag * imag); + + /* Decrement loop counter */ + blkCnt--; + } + +} +#endif /* defined(ARM_MATH_MVEF) && !defined(ARM_MATH_AUTOVECTORIZE) */ + +/** + @} end of cmplx_mag_squared group + */ + +#endif /* #if defined(ARM_FLOAT16_SUPPORTED) */ |
