_mm256_zeroupper
Classification
AVX_ALL, General Support, CPUID Test: AVX
Header File
immintrin.h
Instruction
VZEROUPPER
Synopsis
 _mm256_zeroupper(void);
Description
Zero the upper 128 bits of all YMM registers; the lower 128-bits of the registers are unmodified.
Operation
YMM0[MAX:128] := 0
YMM1[MAX:128] := 0
YMM2[MAX:128] := 0
YMM3[MAX:128] := 0
YMM4[MAX:128] := 0
YMM5[MAX:128] := 0
YMM6[MAX:128] := 0
YMM7[MAX:128] := 0
IF _64_BIT_MODE
	YMM8[MAX:128] := 0
	YMM9[MAX:128] := 0
	YMM10[MAX:128] := 0
	YMM11[MAX:128] := 0
	YMM12[MAX:128] := 0
	YMM13[MAX:128] := 0
	YMM14[MAX:128] := 0
	YMM15[MAX:128] := 0
FI