Visible to Intel only — GUID: GUID-1C130366-0489-427D-8A8D-E8428D1C5DEA
Visible to Intel only — GUID: GUID-1C130366-0489-427D-8A8D-E8428D1C5DEA
_mm256_testc_si256
Performs a packed bit test of two integer vectors to set the CF flag. The corresponding Intel® AVX instruction is VPTEST.
Syntax
extern int _mm256_testc_si256(__m256i s1, __m256i s2); |
Arguments
s1 |
first source integer vector |
s2 |
second source integer vector |
Description
Allows setting of the CF flag. The CF flag is set based on the result of a bitwise AND and logical NOT operation between the first and second source vectors. The corresponding instruction, VPTEST, sets the CF flag if all the resulting bits are 0. If the resulting bits are non-zeros, the instruction clears the CF flag.
Returns
Non-zero if CF flag is set
Zero if the CF flag is not set