mirror of https://github.com/ARMmbed/mbed-os.git
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
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/* ----------------------------------------------------------------------
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* Copyright (C) 2010 ARM Limited. All rights reserved.
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*
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* $Date: 29. November 2010
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* $Revision: V1.0.3
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*
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* Project: CMSIS DSP Library
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*
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* Title: math_helper.h
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*
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*
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* Description: Prototypes of all helper functions required.
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*
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* Target Processor: Cortex-M4/Cortex-M3
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*
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* Version 1.0.3 2010/11/29
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* Re-organized the CMSIS folders and updated documentation.
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*
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* Version 1.0.2 2010/11/11
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* Documentation updated.
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*
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* Version 1.0.1 2010/10/05
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* Production release and review comments incorporated.
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*
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* Version 1.0.0 2010/09/20
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* Production release and review comments incorporated.
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*
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* Version 0.0.7 2010/06/10
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* Misra-C changes done
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* -------------------------------------------------------------------- */
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#include "arm_math.h"
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#ifndef MATH_HELPER_H
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#define MATH_HELPER_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize);
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void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples);
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void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
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void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
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void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples);
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void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples);
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void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples);
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void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples);
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void arm_clip_f32(float *pIn, uint32_t numSamples);
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uint32_t arm_calc_guard_bits(uint32_t num_adds);
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void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits);
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uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples);
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uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples);
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uint32_t arm_calc_2pow(uint32_t guard_bits);
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#ifdef __cplusplus
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}
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#endif
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#endif
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