#include "gdt.h"

static const gdt_entry_t gdt_entries[] = {
    /* Null descriptor */
    0u,
    /* Code segment for kernel */
    gdt_build_entry(0u, 0xFFFFFu, 1u, 0u, 1u, 1u, 0u, 1u, 0u, 1u, 1u, 0u),
    /* Data segment for kernel */
    gdt_build_entry(0u, 0xFFFFFu, 1u, 0u, 1u, 0u, 0u, 1u, 0u, 1u, 1u, 0u),
};

gdtr_t gdtr;

void gdt_init(void)
{
    gdtr.size = sizeof(gdt_entries);
    gdtr.offset_lower = (uintptr_t)gdt_entries & 0xFFFFu;
    gdtr.offset_upper = (uintptr_t)gdt_entries >> 16u;
    gdt_set();
}