_mm256_subs_epu8/16

Subtracts the unsigned 8/16-bit integer data elements with saturation of two vectors. The corresponding Intel® AVX2 instruction is VPSUBUSB or VPSUBUSW.

Syntax

extern __m256i _mm256_subs_epu8(__m256i s1, __m256i s2);

extern __m256i _mm256_subs_epu16(__m256i s1, __m256i s2);

Arguments

s1

integer source vector used for the operation

s2

integer source vector used for the operation

Description

Performs a SIMD subtract of the packed, unsigned, 8- or 16-bit integer data elements with saturation of the second source vector s2 from the corresponding elements of the first source vector s1 and stores the packed integer results in the destination vector. When an individual byte/word result is less than zero (that is, 00H/0000H), the saturated value of 00H/0000H is written to the destination vector.

Returns

Result of the subtraction operation.

Para obtener información más completa sobre las optimizaciones del compilador, consulte nuestro Aviso de optimización.