//
// Created by rick on 8/18/19.
//

#include "idt.h"

idt_gate_t idt[IDT_REGISTERS];
idt_register_t idt_reg;

void set_idt_gate(int n, u32 handler) {
    idt[n].low_offset = handler & 0xffff;
    idt[n].sel = KERNEL_CS;
    idt[n].always0 = 0;
    idt[n].flags = 0x8E;
    idt[n].high_offset = handler >> 16 & 0xFFFF;
}

void set_idt() {
    idt_reg.base = (u32) &idt;
    idt_reg.limit = IDT_REGISTERS * sizeof(idt_gate_t) - 1;

    __asm__ __volatile__("lidtl (%0)" : : "r" (&idt_reg));
}