tpt_log_q31.c File Reference

#include "tpt_math.h"
#include "tpt_internal.h"

Include dependency graph for tpt_log_q31.c:

Macros
#define	LOG_Q31_ACCURACY   31
#define	LOG_Q31_INTEGER_PART   5
#define	LOQ_Q31_THRESHOLD   (1u << LOG_Q31_ACCURACY)
#define	LOQ_Q31_Q32_HALF   LOQ_Q31_THRESHOLD
#define	LOQ_Q31_Q30_HALF   (LOQ_Q31_Q32_HALF >> 2)
#define	LOG_Q31_INVLOG2EXP   0x58b90bfbuL

Functions
static uint32_t	_scalar_log_q31 (uint32_t aInData)
q31_t	tpt_log_q31 (q31_t aInData)
	Calculate the natural logarithm value of q31 input. More...

Macro Definition Documentation

LOG_Q31_ACCURACY

#define LOG_Q31_ACCURACY   31

LOG_Q31_INTEGER_PART

#define LOG_Q31_INTEGER_PART   5

LOG_Q31_INVLOG2EXP

#define LOG_Q31_INVLOG2EXP   0x58b90bfbuL

LOQ_Q31_Q30_HALF

#define LOQ_Q31_Q30_HALF   (LOQ_Q31_Q32_HALF >> 2)

LOQ_Q31_Q32_HALF

#define LOQ_Q31_Q32_HALF   LOQ_Q31_THRESHOLD

LOQ_Q31_THRESHOLD

#define LOQ_Q31_THRESHOLD   (1u << LOG_Q31_ACCURACY)

Function Documentation

_scalar_log_q31()

static uint32_t _scalar_log_q31 ( uint32_t  aInData )

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