gdt.h File Reference

The Global Descriptor Table (GDT). More...

#include "types.h"

Include dependency graph for gdt.h:

Classes
union	GDT::SegmentDescriptor
	Describes the structure of segment descriptors. More...

Structs
struct	GDT::Pointer
	Structure that describes a GDT Pointer (aka GDT Descriptor) More...
struct	GDT::SegmentDescriptor.__unnamed__
struct	GDT::SegmentDescriptor.__unnamed__
	Fields specific for Code Segment (for debugging purposes) More...
struct	GDT::SegmentDescriptor.__unnamed__
	Fields specific for Data Segment (for debugging purposes) More...
struct	GDT::SegmentDescriptor.__unnamed__
	Fields specific to the Task State Segment. More...

Namespaces
	GDT
	Abstracts the GDT that, primarily, contains descriptors to memory segments.

Enumerations
enum	Segments {   SEGMENT_NULL = 0,   SEGMENT_KERNEL_CODE,   SEGMENT_KERNEL_DATA }
enum	GDT::Granularity {   GDT::GRANULARITY_BYTES = 0,   GDT::GRANULARITY_4KBLOCK = 1 }
	Unit of the segment limit. More...
enum	GDT::DescriptorType {   GDT::DESCRIPTOR_SYSTEM = 0,   GDT::DESCRIPTOR_CODEDATA = 1 }
	Descriptor type. More...
enum	GDT::Size {   GDT::SIZE_16BIT = 0,   GDT::SIZE_32BIT = 2,   GDT::SIZE_64BIT = 1 }
	Address width. More...
enum	GDT::Gate {   GATE_TSS = 0x1,   GATE_LDT = 0x2,   GDT::GATE_TSS_BUSY = 0x3,   GATE_CALL = 0x4,   GDT::GATE_TASK = 0x5,   GATE_INTERRUPT = 0x6,   GATE_TRAP = 0x7 }
	gate type More...

Detailed Description

The Global Descriptor Table (GDT).