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. 00000109h - Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2 - Feature Control Register #3 Size: 30 bits Access: Write-Only 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. 00000107h,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. 00000108h,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. 0000010Ah Bitfields for Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2 Feature Control Register #3: Bit(s) Description (Table R0040) 63-32 first four bytes of CPUID vendor ID string 31-0 middle four bytes of CPUID vendor ID string SeeAlso: #R0039