Extensions */<br>
#define X86_FEATURE_TSC		(0*32+ 4) /* Time Stamp Counter */<br>
#define X86_FEATURE_MSR		(0*32+ 5) /* Model-Specific Registers, RDMSR, WRMSR */<br>
#define X86_FEATURE_PAE		(0*32+ 6) /* Physical Address Extensions */<br>
#define X86_FEATURE_MCE		(0*32+ 7) /* Machine Check Architecture */<br>
#define X86_FEATURE_CX8		(0*32+ 8) /* CMPXCHG8 instruction */<br>
#define X86_FEATURE_APIC	(0*32+ 9) /* Onboard APIC */<br>
#define X86_FEATURE_SEP		(0*32+11) /* SYSENTER/SYSEXIT */<br>
#define X86_FEA