# _mm256_hsub_epi16/32

Horizontally subtracts adjacent signed packed 16/32-bit integer data elements of two vectors. The corresponding Intel® AVX2 instruction is VPHSUBW or VPHSUBD.

## Syntax

extern __m256i _mm256_hsub_epi16(__m256i s1, __m256i s2);

extern __m256i _mm256_hsub_epi32(__m256i s1, __m256i s2);

## Arguments

s1 | integer source vector used for the operation
s2 | integer source vector used for the operation

## Description

Performs horizontal subtraction on each adjacent pair of 16- or 32-bit signed integers by subtracting the most significant word from the least significant word of each pair source vectors s2 and s2, and packs the signed 16- or 32-bit results to the destination vector.

## Returns

Result of the horizontal subtraction operation.

Parent topic: Intrinsics for Arithmetic Operations