128) of the corresponding YMM destination register remain unchanged.</p>
<p>VEX.128 encoded version: The destination operand is an XMM register; the count operand can be either an XMM register or a 128-bit memory location, or an 8-bit immediate. If the count operand is a memory address, 128 bits are loaded but the upper 64 bits are ignored. Bits (MAXVL-1:128) of the destination YMM register are zeroed.</p>
<p>VEX.256 encoded version: The destination operand is a YMM register. The source operand is a YMM reg