title: XMM Registers Total or Per Core
body: <p>In a multicore CPU, does each core have access to it's own bank of XMM registers? For example if a chip is listed as having 16 XMM registers (XMM0-XMM15), is that 16 registers per core or 16 shared? </p>
  
  <p>My understanding was that each core had its own register banks, and I would assume that the same goes for XMM registers, but I wasn't able to find a reference to back this assumption.</p>