#include <inttypes.h>
#include <stdbool.h>
#include <pbl/kernel/compiler.h>

Data Structures
union	Fixed_S16_3
	Fixed-point number with 1 sign bit, 12 integer bits and 3 fraction bits. More...

union	Fixed_S32_16
	Fixed-point number with 1 sign bit, 15 integer bits and 16 fraction bits. More...

union	Fixed_S64_32
	Fixed-point number with 1 sign bit, 31 integer bits and 32 fraction bits. More...

struct	Fixed_S16_3.__unnamed102__

struct	Fixed_S32_16.__unnamed104__

struct	Fixed_S64_32.__unnamed106__

Macros
#define	Fixed_S16_3(raw) ((Fixed_S16_3){.raw_value = (raw)})
	Make a Fixed_S16_3 from its raw value.

#define	FIXED_S16_3_PRECISION 3
	Number of fraction bits of Fixed_S16_3.

#define	FIXED_S16_3_FACTOR (1 << FIXED_S16_3_PRECISION)
	Scale factor of Fixed_S16_3.

#define	FIXED_S16_3_ZERO ((Fixed_S16_3){.integer = 0, .fraction = 0})
	Fixed_S16_3 zero.

#define	FIXED_S16_3_ONE ((Fixed_S16_3){.integer = 1, .fraction = 0})
	Fixed_S16_3 one.

#define	FIXED_S16_3_HALF ((Fixed_S16_3){.raw_value = FIXED_S16_3_ONE.raw_value / 2})
	Fixed_S16_3 one half.

#define	Fixed_S32_16(raw) ((Fixed_S32_16){.raw_value = (raw)})
	Make a Fixed_S32_16 from its raw value.

#define	FIXED_S32_16_PRECISION 16
	Number of fraction bits of Fixed_S32_16.

#define	FIXED_S32_16_ONE ((Fixed_S32_16){.integer = 1, .fraction = 0})
	Fixed_S32_16 one.

#define	FIXED_S32_16_ZERO ((Fixed_S32_16){.integer = 0, .fraction = 0})
	Fixed_S32_16 zero.

#define	FIXED_S64_32_PRECISION 32
	Number of fraction bits of Fixed_S64_32.

#define	FIXED_S64_32_ONE ((Fixed_S64_32){.integer = 1, .fraction = 0})
	Fixed_S64_32 one.

#define	FIXED_S64_32_ZERO ((Fixed_S64_32){.integer = 0, .fraction = 0})
	Fixed_S64_32 zero.

#define	FIXED_S64_32_FROM_RAW(raw) ((Fixed_S64_32){.raw_value = (raw)})
	Make a Fixed_S64_32 from its raw value.

#define	FIXED_S64_32_FROM_INT(x) ((Fixed_S64_32){.integer = x, .fraction = 0})
	Make a Fixed_S64_32 from an integer.

#define	FIXED_S64_32_TO_INT(x) (x.integer)
	Get the integer part of a Fixed_S64_32, rounded towards negative infinity.

Typedefs
typedef Fixed_S32_16	Fixed_S32_16Return
	Alias of Fixed_S32_16 for function return types.

Functions
static __inline__ Fixed_S16_3	Fixed_S16_3_mul (Fixed_S16_3 a, Fixed_S16_3 b)
	Multiply two Fixed_S16_3 values.

static __inline__ Fixed_S16_3	Fixed_S16_3_add (Fixed_S16_3 a, Fixed_S16_3 b)
	Add two Fixed_S16_3 values.

static __inline__ Fixed_S16_3	Fixed_S16_3_sub (Fixed_S16_3 a, Fixed_S16_3 b)
	Subtract two Fixed_S16_3 values.

static __inline__ Fixed_S16_3	Fixed_S16_3_add3 (Fixed_S16_3 a, Fixed_S16_3 b, Fixed_S16_3 c)
	Add three Fixed_S16_3 values.

static __inline__ bool	Fixed_S16_3_equal (Fixed_S16_3 a, Fixed_S16_3 b)
	Compare two Fixed_S16_3 values.

static __inline__ int16_t	Fixed_S16_3_rounded_int (Fixed_S16_3 a)
	Round a Fixed_S16_3 value to the nearest integer, halves away from zero.

static __inline__ Fixed_S32_16	Fixed_S32_16_mul (Fixed_S32_16 a, Fixed_S32_16 b)
	Multiply two Fixed_S32_16 values.

static __inline__ Fixed_S32_16	Fixed_S32_16_add (Fixed_S32_16 a, Fixed_S32_16 b)
	Add two Fixed_S32_16 values.

static __inline__ Fixed_S32_16	Fixed_S32_16_add3 (Fixed_S32_16 a, Fixed_S32_16 b, Fixed_S32_16 c)
	Add three Fixed_S32_16 values.

static __inline__ Fixed_S32_16	Fixed_S32_16_sub (Fixed_S32_16 a, Fixed_S32_16 b)
	Subtract two Fixed_S32_16 values.

static __inline__ Fixed_S64_32	Fixed_S64_32_mul (Fixed_S64_32 a, Fixed_S64_32 b)
	Multiply two Fixed_S64_32 values.

static __inline__ Fixed_S64_32	Fixed_S64_32_add (Fixed_S64_32 a, Fixed_S64_32 b)
	Add two Fixed_S64_32 values.

static __inline__ Fixed_S64_32	Fixed_S64_32_add3 (Fixed_S64_32 a, Fixed_S64_32 b, Fixed_S64_32 c)
	Add three Fixed_S64_32 values.

static __inline__ Fixed_S64_32	Fixed_S64_32_sub (Fixed_S64_32 a, Fixed_S64_32 b)
	Subtract two Fixed_S64_32 values.

static __inline__ Fixed_S16_3	Fixed_S16_3_S32_16_mul (Fixed_S16_3 a, Fixed_S32_16 b)
	Multiply a Fixed_S16_3 by a Fixed_S32_16.

Fixed_S64_32	math_fixed_recursive_filter (Fixed_S64_32 x, int num_input_coefficients, int num_output_coefficients, const Fixed_S64_32 cb, const Fixed_S64_32 ca, Fixed_S64_32 state_x, Fixed_S64_32 state_y)
	Run a value through an Nth order linear recursive (IIR) filter.

Data Structures

Macros

Typedefs

Functions