BarinkOS/kernel/memory/gdt/gdtc.h

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#pragma once
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#include <stdint.h>
#define NULL_SEGMENT 0
#define KERNEL_CODE_SEGMENT 1
#define KERNEL_DATA_SEGMENT 2
#define USER_CODE_SEGMENT 3
#define USER_DATA_SEGMENT 4
#define TASK_STATE_SEGMENT 5
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struct SegmentDescriptor {
unsigned short limit_low;
unsigned short base_low;
unsigned char base_middle;
unsigned char access;
unsigned char granularity;
unsigned char base_high;
}__attribute__((packed));
extern SegmentDescriptor GlobalDescriptorTable[6];
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struct GlobalDescriptorTableDescriptor{
unsigned short limit;
unsigned int base;
}__attribute__((packed)) ;
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void add_descriptor(int which , unsigned long base, unsigned long limit, unsigned char access, unsigned char granularity );
void initGDT();