34 lines
649 B
C
34 lines
649 B
C
#ifndef __GDT_H__
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#define __GDT_H__
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struct gdt_entry {
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unsigned short limit_low;
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unsigned short base_low;
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unsigned char base_middle;
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unsigned char access;
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unsigned char granularity;
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unsigned char base_hight;
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} __attribute__ ((packed));
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struct gdt_ptr {
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unsigned short limit;
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unsigned int base;
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} __attribute__ ((packed));
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extern int gdt_flush();
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extern struct gdt_entry gdt[3];
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extern struct gdt_ptr gp;
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int gdt_set_gate(int num,
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unsigned long base,
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unsigned long limit,
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unsigned char access,
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unsigned char gran);
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int gdt_install();
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#endif
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