| Parameter | Description |
|---|---|
| a | Vector a |
| imm8 | Control |
v256 Vector
Shuffle 16-bit integers in the high 64 bits of 128-bit lanes of a using the control in imm8. Store the results in the high 64 bits of 128-bit lanes of dst, with the low 64 bits of 128-bit lanes being copied from from a to dst.