Control register 4. More...

Enumerations
enum	: uint8_t { VME = 0, PVI = 1, TSD = 2, DE = 3, PSE = 4, PAE = 5, MCE = 6, PGE = 7, PCE = 8, OSFXSR = 9, OSXMMEXCPT = 10 }

Detailed Description

Control register 4.

Enumeration Type Documentation

anonymous enum : uint8_t

Enumerator
VME	Virtual 8086 extension \| Set to enable interrupt/exception extension in virtual 8086
PVI	Protected virtual interrupt \| Set to enable hardware support for virtual interrupt flag
TSD	Time stamp disable \| Set to restrict RDTSC instructions to ring 0
DE	Debugging extensions \| Set to reserve debug registers DR4, and DR5
PSE	Page size extensions \| Set to use 4MB page size
PAE	Physical address extension \| Set to use 36 bit physical address
MCE	Machine-check enable \| Set to enable machine-check exception
PGE	Page global enable \| Set to enable global page, i.e. marking page as global to all user
PCE	Performance-monitoring counter enable \| Set to enable RDPMC inst. at any protection level
OSFXSR	OS support for FXSAVE/FXRSTOR \| Set to indicate OS support for save/restore of XMM, and MXCSR registers
OSXMMEXCPT	OS support for unmasked SIMD FP exceptions \| Set to allow SIMD floating-point exception

Definition at line 32 of file registers.h.