Matrix Addition

Adds two matrices. More...

Functions
RISCV_DSP_ATTRIBUTE riscv_status	riscv_mat_add_f16 (const riscv_matrix_instance_f16 *pSrcA, const riscv_matrix_instance_f16 *pSrcB, riscv_matrix_instance_f16 *pDst)
	Floating-point matrix addition. More...
RISCV_DSP_ATTRIBUTE riscv_status	riscv_mat_add_f32 (const riscv_matrix_instance_f32 *pSrcA, const riscv_matrix_instance_f32 *pSrcB, riscv_matrix_instance_f32 *pDst)
	Floating-point matrix addition. More...
RISCV_DSP_ATTRIBUTE riscv_status	riscv_mat_add_q15 (const riscv_matrix_instance_q15 *pSrcA, const riscv_matrix_instance_q15 *pSrcB, riscv_matrix_instance_q15 *pDst)
	Q15 matrix addition. More...
RISCV_DSP_ATTRIBUTE riscv_status	riscv_mat_add_q31 (const riscv_matrix_instance_q31 *pSrcA, const riscv_matrix_instance_q31 *pSrcB, riscv_matrix_instance_q31 *pDst)
	Q31 matrix addition. More...

Detailed Description

Adds two matrices.

Addition of two 3 x 3 matrices

\[ \begin{pmatrix} a_{1,1} & a_{1,2} & a_{1,3} \\ a_{2,1} & a_{2,2} & a_{2,3} \\ a_{3,1} & a_{3,2} & a_{3,3} \\ \end{pmatrix} + \begin{pmatrix} b_{1,1} & b_{1,2} & b_{1,3} \\ b_{2,1} & b_{2,2} & b_{2,3} \\ b_{3,1} & b_{3,2} & b_{3,3} \\ \end{pmatrix} = \begin{pmatrix} a_{1,1}+b_{1,1} & a_{1,2}+b_{1,2} & a_{1,3}+b_{1,3} \\ a_{2,1}+b_{2,1} & a_{2,2}+b_{2,2} & a_{2,3}+b_{2,3} \\ a_{3,1}+b_{3,1} & a_{3,2}+b_{3,2} & a_{3,3}+b_{3,3} \\ \end{pmatrix} \]

The functions check to make sure that pSrcA, pSrcB, and pDst have the same number of rows and columns.

Function Documentation

riscv_mat_add_f16()

RISCV_DSP_ATTRIBUTE riscv_status riscv_mat_add_f16	(	const riscv_matrix_instance_f16 *	pSrcA,
		const riscv_matrix_instance_f16 *	pSrcB,
		riscv_matrix_instance_f16 *	pDst
	)

Floating-point matrix addition.

Parameters

[in]	pSrcA	points to first input matrix structure
[in]	pSrcB	points to second input matrix structure
[out]	pDst	points to output matrix structure

Returns

execution status

• RISCV_MATH_SUCCESS : Operation successful
• RISCV_MATH_SIZE_MISMATCH : Matrix size check failed

riscv_mat_add_f32()

RISCV_DSP_ATTRIBUTE riscv_status riscv_mat_add_f32	(	const riscv_matrix_instance_f32 *	pSrcA,
		const riscv_matrix_instance_f32 *	pSrcB,
		riscv_matrix_instance_f32 *	pDst
	)

Floating-point matrix addition.

Parameters

[in]	pSrcA	points to first input matrix structure
[in]	pSrcB	points to second input matrix structure
[out]	pDst	points to output matrix structure

Returns

execution status

• RISCV_MATH_SUCCESS : Operation successful
• RISCV_MATH_SIZE_MISMATCH : Matrix size check failed

riscv_mat_add_q15()

RISCV_DSP_ATTRIBUTE riscv_status riscv_mat_add_q15	(	const riscv_matrix_instance_q15 *	pSrcA,
		const riscv_matrix_instance_q15 *	pSrcB,
		riscv_matrix_instance_q15 *	pDst
	)

Q15 matrix addition.

Parameters

[in]	pSrcA	points to first input matrix structure
[in]	pSrcB	points to second input matrix structure
[out]	pDst	points to output matrix structure

Returns

execution status

• RISCV_MATH_SUCCESS : Operation successful
• RISCV_MATH_SIZE_MISMATCH : Matrix size check failed

Scaling and Overflow Behavior

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

riscv_mat_add_q31()

RISCV_DSP_ATTRIBUTE riscv_status riscv_mat_add_q31	(	const riscv_matrix_instance_q31 *	pSrcA,
		const riscv_matrix_instance_q31 *	pSrcB,
		riscv_matrix_instance_q31 *	pDst
	)

Q31 matrix addition.

Parameters

[in]	pSrcA	points to first input matrix structure
[in]	pSrcB	points to second input matrix structure
[out]	pDst	points to output matrix structure

Returns

execution status

• RISCV_MATH_SUCCESS : Operation successful
• RISCV_MATH_SIZE_MISMATCH : Matrix size check failed

Scaling and Overflow Behavior

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