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. 00000083h - AMD Am5k86 (AMD-K5) - HARDWARE CONFIGURATION REGISTER
Size:	8 bits
SeeAlso: 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. 00000082h


Bitfields for AMD Am5k86 (AMD-K5) Hardware Configuration Register:
Bit(s)	Description	(Table R0036)
 63-8	reserved
 7	disable data cache
 6	disable instruction cache
 5	disable branch prediction
 4	enable write allocation (stepping 4 and higher only)
 3-1	debug control
	000 off
	001 enable branch trace (requires bit 5 set as well)
	100 enable Probe Mode on debug trap
	other reserved
 0	disable Stopping Processor Clock in Halt and Stop Grant states
SeeAlso: #R0023