Model Specific Registers: Difference between revisions
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Processors from P6 family (including Pentium PRO, Pentium 3 & 4) have a collection of registers that allows configuration of various things such as memory type-range, sysenter/sysexit, local APIC, etc.
== Accessing Model Specific Registers ==
Each MSR has a single 32-bit identification number that will be given to RDMSR or WRMSR assembly instructions to operate it. MSRs are 64-bit wide. The presence of MSRs on your processor is indicated by bit 5 of CPUID features.
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