_mm512_mask_loadunpackhi_epi32
Classification
KNC, Load, CPUID Test: KNCNI
Header File
Instruction
VLOADUNPACKHD zmm {k}, m512
Synopsis
_mm512_mask_loadunpackhi_epi32(__m512i src, __mmask16 k, void const * mt);
Description
Loads the high-64-byte-aligned portion of the byte/word/doubleword stream starting at element-aligned address mt-64 and expands them into packed 32-bit integers in "dst". The initial values of "dst" are copied from "src". Only those converted doublewords that occur at or after the first 64-byte-aligned address following (mt-64) are loaded. Elements in the resulting vector that do not map to those doublewords are taken from "src". Elements are loaded from memory according to element selector "k" (elements are skipped when the corresponding mask bit is not set).
Operation
dst[511:0] := src[511:0]
loadOffset := 0
foundNext64BytesBoundary := false
addr := mt-64
FOR j := 0 to 15
IF k[j]
IF foundNext64BytesBoundary == false
IF (addr + (loadOffset + 1)*4 % 64) == 0
foundNext64BytesBoundary := true
FI
ELSE
i := j*32
tmp := MEM[addr + loadOffset*4]
dst[i+31:i] := tmp[i+31:i]
FI
loadOffset := loadOffset + 1
FI
ENDFOR
dst[MAX:512] := 0