26 lines
498 B
C
26 lines
498 B
C
#ifndef GDT_H
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#define GDT_H
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#include <stdint.h>
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struct gdt_entry {
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uint16_t limit_low;
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uint16_t base_low;
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uint8_t base_middle;
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uint8_t access;
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uint8_t granularity;
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uint8_t base_high;
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} __attribute__((packed));
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struct gdt_ptr {
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uint16_t limit;
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uint32_t base;
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} __attribute__((packed));
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extern struct gdt_entry gdt[3];
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extern struct gdt_ptr gdtp;
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void gdt_set_gate(int num, uint32_t base, uint32_t limit, uint8_t access, uint8_t gran);
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void gdt_install();
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#endif |