_mm256_mask_i64scatter_ps
Classification
AVX-512, Store, CPUID Test: AVX512F
Header File
Instruction
VSCATTERQPS vm64y {k}, xmm
Synopsis
_mm256_mask_i64scatter_ps(void* base_addr, __mmask8 k, __m256i vindex, __m128 a, const int scale);
Description
Scatter single-precision (32-bit) floating-point elements from "a" into memory using 64-bit indices. 32-bit elements are stored at addresses starting at "base_addr" and offset by each 64-bit element in "vindex" (each index is scaled by the factor in "scale") subject to mask "k" (elements are not stored when the corresponding mask bit is not set). "scale" should be 1, 2, 4 or 8.
Operation
FOR j := 0 to 3
i := j*32
m := j*64
IF k[j]
addr := base_addr + vindex[m+63:m] * ZeroExtend64(scale) * 8
MEM[addr+31:addr] := a[i+31:i]
FI
ENDFOR