uint v_addr = read_cr2();

read_cr2:
   movl %cr2, %eax
   ret

#define MEM_PAGEDIR 0xFFFFF000
#define MEM_PAGETABLE 0xFFC00000
#define cr3_reset() write_cr3(read_cr3())

uint mm_create_page_table(uint v_addr) {
   int *pagedir = (int *) MEM_PAGEDIR;
   int entry = v_addr >> 22;
   int i;
   
   int *pagetable = (int *) MEM_PAGETABLE;
   pagetable += entry * 1024;

   unsigned int page = mm_alloc_page();
   pagedir[entry] = page | 3;
   cr3_reset();
      
   for (i = 0; i < 1024; i++)
      pagetable[i] = 0 | 2;
         
   return page;
}

uint mm_page_bind(uint v_addr, char cpl, char wr) {
   uint pde = v_addr >> 22;
   uint pte = (v_addr >> 12) & 1023;
   uint page = mm_alloc_page();
   
   uint *pagedir = (uint *) MEM_PAGEDIR;
   uint *pagetable = (uint *) MEM_PAGETABLE;
   pagetable += pde * 1024;
   
   pagetable[pte] = page | (1 + (cpl << 2) + (wr << 1));
   return page;
}

// from init.c:
   mm_create_page_table(0xA0000000);
   mm_page_bind(0xA0000000, 1, 1);
   
   char *test = (char *) 0xA0001004;
   *test = 0xFF;

// when I print test it is -1, when i check it with an ' if ' it's also -1, so my printf function is ok :)