Namespaces
namespace	inner

Data Structures
struct	Q15DSPVector
	Representation of a vector when DSP extension supported. More...

struct	vector_traits< Q15, DSP, typename std::enable_if< true >::type >
	Vector description for Q15 with DSP extensions. More...

Description

Data Structure Documentation

◆ Q15DSPVector

struct Q15DSPVector

Representation of a vector when DSP extension supported.

Public Member Functions
	Q15DSPVector ()
	Create new 0 initialized vector.

	Q15DSPVector (int32_t val)
	Create vector initialized from value.

	operator int32_t ()
	Return value in vector.

Constructor & Destructor Documentation

◆ Q15DSPVector()

Q15DSPVector ( int32_t val )

inlineexplicit

Create vector initialized from value.

Parameters

[in] val The value

◆ vector_traits< Q15, DSP, typename std::enable_if< true >::type >

struct vector_traits< Q15, DSP, typename std::enable_if< true >::type >

Vector description for Q15 with DSP extensions.

Public Types
typedef Q15	type
	Scalar datatype.

typedef type::value_type	storage_type
	Storage datatype.

typedef Q15DSPVector	vector
	Vector datatype.

typedef Q< 33, 30 >	temp_accumulator
	Accumulator datatype.

typedef uint32_t	predicate_t

Static Public Member Functions
static Q< 33, 30 >	temp_acc_zero ()
	Zero accumulator.

static constexpr int16_t	zero_lane ()
	Value to write in a lane to write 0.

static constexpr int16_t	lane_value (const Q15 x)
	Convert to lane value.

Static Public Attributes
static constexpr bool	has_vector = true
	Has some vector instructions.

static constexpr bool	is_float = false
	Is not float.

static constexpr bool	is_fixed = true
	Is fixed point.

static constexpr bool	has_predicate = false
	No predicated loops.

static constexpr int	nb_lanes = 2
	Number of lanes.

Member Typedef Documentation

◆ predicate_t

typedef uint32_t predicate_t

Dummy type since there is no predicated loop for DSP extensions

Member Function Documentation

◆ lane_value()

static constexpr int16_t lane_value ( const Q15 x )

inlinestaticconstexpr

Convert to lane value.

Parameters

[in] x Value

Returns: Lane value

◆ temp_acc_zero()

static Q< 33, 30 > temp_acc_zero ( )

inlinestatic

Zero accumulator.

Returns: Zero accumulator

◆ zero_lane()

static constexpr int16_t zero_lane ( )

inlinestaticconstexpr

Value to write in a lane to write 0.

Returns: Zero value for a lane

Namespaces

Data Structures