For example, in one embodiment an instruction may be used that stores {HEAD ~ information} to {TAIL ~ a cache line} while either checking or setting the corresponding attribute bits  
For example , in one embodiment an instruction may be used that stores { HEAD ~ information } to { TAIL ~ a cache line } while either checking or setting the corresponding attribute bits
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH