Vector Addition

Module: Basic Math Functions

More...

Modules

Name
Vector Addition Kernels

Functions

	Name
void	plp_add_i16(const int16_t * pSrcA, const int16_t * pSrcB, int32_t * pDst, uint32_t blockSize) Glue code for element-by-element addition of 16-bit integer vectors.
void	plp_add_i32(const int32_t * pSrcA, const int32_t * pSrcB, int32_t * pDst, uint32_t blockSize) Glue code for element-by-element addition of 32-bit integer vectors.
void	plp_add_i8(const int8_t * pSrcA, const int8_t * pSrcB, int32_t * pDst, uint32_t blockSize) Glue code for element-by-element addition of 8-bit integer vectors.

Detailed Description

This module contains the glue code for Vector Addition. The kernel codes (kernels) are in the Moducle Vector Addition Kernels.

The Vector Addition computes element-by-element addition of two vectors.

pDst[n] = pSrcA[n] + pSrcB[n], 0 <= n < blockSize.

There are separate functions for floating point, integer, and fixed point 32- 16- 8-bit data types. For lower precision integers (16- and 8-bit), functions exploiting SIMD instructions are provided.

The naming scheme of the functions follows the following pattern (for example plp_dot_prod_i32s): _ _ _ , with

data type = {f, i, q} respectively for floats, integers, fixed points

precision = {32, 16, 8} bits

method = {s, p} respectively meaning single core or parallel multicore implementation.

isa extension = rv32im, xpulpv2, etc. of which rv32im is the most general one.

Functions Documentation

function plp_add_i16

void plp_add_i16(
    const int16_t * pSrcA,
    const int16_t * pSrcB,
    int32_t * pDst,
    uint32_t blockSize
)

Glue code for element-by-element addition of 16-bit integer vectors.

Parameters:

• pSrcA points to first input vector
• pSrcB points to second input vector
• pDst points to output vector
• blockSize number of samples in each vector

Return: none

function plp_add_i32

void plp_add_i32(
    const int32_t * pSrcA,
    const int32_t * pSrcB,
    int32_t * pDst,
    uint32_t blockSize
)

Glue code for element-by-element addition of 32-bit integer vectors.

Parameters:

• pSrcA points to first input vector
• pSrcB points to second input vector
• pDst points to output vector
• blockSize number of samples in each vector

Return: none

function plp_add_i8

void plp_add_i8(
    const int8_t * pSrcA,
    const int8_t * pSrcB,
    int32_t * pDst,
    uint32_t blockSize
)

Glue code for element-by-element addition of 8-bit integer vectors.

Parameters:

• pSrcA points to first input vector
• pSrcB points to second input vector
• pDst points to output vector
• blockSize number of samples in each vector

Return: none

---

Updated on 2023-03-01 at 16:16:32 +0000