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PC World 1999 October
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Ring0.h
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C/C++ Source or Header
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1999-03-20
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739b
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44 lines
#ifndef RING0_H
#define RING0_H
#pragma pack(1)
struct GDT_DESCRIPTOR
{
WORD Limit_0_15;
WORD Base_0_15;
BYTE Base_16_23;
BYTE Type : 4;
BYTE System : 1;
BYTE DPL : 2;
BYTE Present : 1;
BYTE Limit_16_19 : 4;
BYTE Available : 1;
BYTE Reserved : 1;
BYTE D_B : 1;
BYTE Granularity : 1;
BYTE Base_24_31;
};
struct CALLGATE_DESCRIPTOR
{
WORD Offset_0_15;
WORD Selector;
WORD ParamCount : 5;
WORD Unused : 3;
WORD Type : 4;
WORD System : 1;
WORD DPL : 2;
WORD Present : 1;
WORD Offset_16_31;
};
struct GDTR
{
WORD wGDTLimit;
DWORD dwGDTBase;
};
#pragma pack()
#endif