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gdt_entry Struct Reference
[Low-Level Memory Manager]

GDT structure. More...

#include <mem.h>

Data Fields
word	limit
word	base0_15
byte	base16_23
byte	attribs0_7
	P(1bit) | DPL(2bit) | S(1bit) | Type(4bit).
byte	attribs8_15
	G(1bit) | D/B(1bit) | 0(1bit) | AVL(1bit) | limit16_19(4bit).
byte	base24_31

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Detailed Description

GDT structure.

P=Present, DPL=Descriptor Privilege Level, S=Descriptor type (0=system; 1=code or data), Type=Segment type, G=Granularity, D/B=Default operation size(0=16bit; 1=32bit segment), AVL=Available for use by system software.

Definition at line 114 of file mem.h.

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Field Documentation

byte gdt_entry::attribs0_7

P(1bit) | DPL(2bit) | S(1bit) | Type(4bit). Definition at line 119 of file mem.h.

byte gdt_entry::attribs8_15

G(1bit) | D/B(1bit) | 0(1bit) | AVL(1bit) | limit16_19(4bit). Definition at line 120 of file mem.h.

word gdt_entry::base0_15

Definition at line 117 of file mem.h.

byte gdt_entry::base16_23

Definition at line 118 of file mem.h.

byte gdt_entry::base24_31

Definition at line 121 of file mem.h.

word gdt_entry::limit

Definition at line 116 of file mem.h.

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The documentation for this struct was generated from the following file:

• mem.h

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