4 ms·

The 128-bit wide shifts PS{L,R}LDQ only have byte granularity. They're a special case of a byte shuffle.

• acchow 2y ago
  The "Q" at the end is "quadword", so it's 64 bits (8 bytes).
  • pbsd 2y ago
    No, you're thinking of PS{R,L}LQ.