MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like.	These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 00000014h - Pentium P54C - bug?
Note:	returns 0 on all reads and ignores any writes for P54C processors with
	  CPUID values <= 0524h, rather than causing an exception; possibly due
	  to a microcode bug