MEM FEE00310h - Pentium + - LOCAL APIC - INTERRUPT COMMAND REGISTER (ICR)
Size:	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.
Note:	this is the high half of the 64-bit ICR
SeeAlso: MEM FEE00300h,#M0121