32 lines
908 B
C
32 lines
908 B
C
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/******************************************************************
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* idt.h - INTERRUPT DESCRIPTOR TABLE *
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* Contains structures and function declarations for IDT *
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******************************************************************/
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#ifndef __IDT_H
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#define __IDT_H
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/* Defines an IDT entry */
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struct idt_entry
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{
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unsigned short base_lo;
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unsigned short sel;
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unsigned char always0;
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unsigned char flags;
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unsigned short base_hi;
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} __attribute__((packed));
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struct idt_ptr
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{
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unsigned short limit;
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unsigned int base;
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} __attribute__((packed));
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/* This exists in 'start.asm', and is used to load our IDT */
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extern void i86_idt_load();
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extern void i86_idt_set_gate(unsigned char num, unsigned long base, unsigned short sel, unsigned char flags);
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extern struct idt_entry* i86_idt_get_gate(unsigned char num);
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extern void i86_idt_install();
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#endif
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