Vector Multiplication

Collaboration diagram for Vector Multiplication:

Functions
void	tpt_mult_f32 (f32_t *__restrict aOutData, const f32_t *__restrict aInDataA, const f32_t *__restrict aInDataB, uint32_t aCount)
	Floating-point vector multiplication.
void	tpt_mult_f64 (f64_t *__restrict aOutData, const f64_t *__restrict aInDataA, const f64_t *__restrict aInDataB, uint32_t aCount)
	Floating-point vector multiplication.
void	tpt_mult_q15 (q15_t *__restrict aOutData, const q15_t *__restrict aInDataA, const q15_t *__restrict aInDataB, uint32_t aCount)
	Q15 vector multiplication.
void	tpt_mult_q31 (q31_t *__restrict aOutData, const q31_t *__restrict aInDataA, const q31_t *__restrict aInDataB, uint32_t aCount)
	Q31 vector multiplication.
void	tpt_mult_q7 (q7_t *__restrict aOutData, const q7_t *__restrict aInDataA, const q7_t *__restrict aInDataB, uint32_t aCount)
	Q7 vector multiplication.
void	tpt_mult_u8_u16 (uint16_t *__restrict aOuData, uint8_t *__restrict aInDataA, uint8_t *__restrict aInDataB, uint32_t aCount)
	U8 vector multiplication.

Detailed Description

Element-by-element multiplication of two vectors.

     aOutData[n] = aInDataA[n] * aInDataB[n],   0 <= n < aCount.
  

There are separate functions for floating-point, Q7, Q15, and Q31 data types.

Function Documentation

tpt_mult_f32()

void tpt_mult_f32	(	f32_t *__restrict	aOutData,
		const f32_t *__restrict	aInDataA,
		const f32_t *__restrict	aInDataB,
		uint32_t	aCount )

Floating-point vector multiplication.

Parameters

[out]	aOutData	points to output vector
[in]	aInDataA	points to first input vector
[in]	aInDataB	points to second input vector
[in]	aCount	number of samples in each vector

Returns

none

tpt_mult_f64()

void tpt_mult_f64	(	f64_t *__restrict	aOutData,
		const f64_t *__restrict	aInDataA,
		const f64_t *__restrict	aInDataB,
		uint32_t	aCount )

Floating-point vector multiplication.

Parameters

[out]	aOutData	points to output vector
[in]	aInDataA	points to first input vector
[in]	aInDataB	points to second input vector
[in]	aCount	number of samples in each vector

Returns

none

tpt_mult_q15()

void tpt_mult_q15	(	q15_t *__restrict	aOutData,
		const q15_t *__restrict	aInDataA,
		const q15_t *__restrict	aInDataB,
		uint32_t	aCount )

Q15 vector multiplication.

Parameters

[out]	aOutData	points to output vector
[in]	aInDataA	points to first input vector
[in]	aInDataB	points to second input vector
[in]	aCount	number of samples in each vector

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. Results outside of the allowable Q15 range [0x8000 0x7FFF] are saturated.

tpt_mult_q31()

void tpt_mult_q31	(	q31_t *__restrict	aOutData,
		const q31_t *__restrict	aInDataA,
		const q31_t *__restrict	aInDataB,
		uint32_t	aCount )

Q31 vector multiplication.

Parameters

[out]	aOutData	points to output vector
[in]	aInDataA	points to first input vector
[in]	aInDataB	points to second input vector
[in]	aCount	number of samples in each vector

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. Results outside of the allowable Q31 range[0x80000000 0x7FFFFFFF] are saturated.

tpt_mult_q7()

void tpt_mult_q7	(	q7_t *__restrict	aOutData,
		const q7_t *__restrict	aInDataA,
		const q7_t *__restrict	aInDataB,
		uint32_t	aCount )

Q7 vector multiplication.

Parameters

[out]	aOutData	points to output vector
[in]	aInDataA	points to first input vector
[in]	aInDataB	points to second input vector
[in]	aCount	number of samples in each vector

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. Results outside of the allowable Q7 range [0x80 0x7F] are saturated.

tpt_mult_u8_u16()

void tpt_mult_u8_u16	(	uint16_t *__restrict	aOuData,
		uint8_t *__restrict	aInDataA,
		uint8_t *__restrict	aInDataB,
		uint32_t	aCount )

U8 vector multiplication.

Parameters

[out]	aOutData	points to output vector
[in]	aInDataA	points to first input vector
[in]	aInDataB	points to second input vector
[in]	aCount	number of samples in each vector

Returns

none

Ouput results will be in U16 range [0x00 0xFFFF]