Vector Absolute Value

Collaboration diagram for Vector Absolute Value:

Functions
void	tpt_abs_f32 (f32_t *__restrict aOutData, const f32_t *__restrict aInData, uint32_t aCount)
	Floating-point vector absolute value. More...
void	tpt_abs_f64 (f64_t *__restrict aOutData, const f64_t *__restrict aInData, uint32_t aCount)
	Floating-point vector absolute value. More...
void	tpt_abs_q15 (q15_t *__restrict aOutData, const q15_t *__restrict aInData, uint32_t aCount)
	Q15 vector absolute value. More...
void	tpt_abs_q31 (q31_t *__restrict aOutData, const q31_t *__restrict aInData, uint32_t aCount)
	Q31 vector absolute value. More...
void	tpt_abs_q7 (q7_t *__restrict aOutData, const q7_t *__restrict aInData, uint32_t aCount)
	Q7 vector absolute value. More...

Detailed Description

Computes the absolute value of a vector on an element-by-element basis.

      aOutData[n] = abs(aInData[n]),   0 <= n < aCount.
  

The functions support in-place computation allowing the source and destination pointers to reference the same memory buffer. There are separate functions for floating-point, Q7, Q15, and Q31 data types.

Function Documentation

tpt_abs_f32()

void tpt_abs_f32	(	f32_t *__restrict	aOutData,
		const f32_t *__restrict	aInData,
		uint32_t	aCount
	)

Floating-point vector absolute value.

Parameters

[out]	aOutData	points to the output vector
[in]	aInData	points to the input vector
[in]	aCount	number of samples in each vector

Returns

none

tpt_abs_f64()

void tpt_abs_f64	(	f64_t *__restrict	aOutData,
		const f64_t *__restrict	aInData,
		uint32_t	aCount
	)

Floating-point vector absolute value.

Parameters

[out]	aOutData	points to the output vector
[in]	aInData	points to the input vector
[in]	aCount	number of samples in each vector

Returns

none

tpt_abs_q15()

void tpt_abs_q15	(	q15_t *__restrict	aOutData,
		const q15_t *__restrict	aInData,
		uint32_t	aCount
	)

Q15 vector absolute value.

Parameters

[out]	aOutData	points to the output vector
[in]	aInData	points to the input vector
[in]	aCount	number of samples in each vector

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. The Q15 value -1 (0x8000) will be saturated to the maximum allowable positive value 0x7FFF.

tpt_abs_q31()

void tpt_abs_q31	(	q31_t *__restrict	aOutData,
		const q31_t *__restrict	aInData,
		uint32_t	aCount
	)

Q31 vector absolute value.

Parameters

[out]	aOutData	points to the output vector
[in]	aInData	points to the input vector
[in]	aCount	number of samples in each vector

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF.

tpt_abs_q7()

void tpt_abs_q7	(	q7_t *__restrict	aOutData,
		const q7_t *__restrict	aInData,
		uint32_t	aCount
	)

Q7 vector absolute value.

Parameters

[out]	aOutData	points to the output vector
[in]	aInData	points to the input vector
[in]	aCount	number of samples in each vector

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. The Q7 value -1 (0x80) will be saturated to the maximum allowable positive value 0x7F.