traslate

/* Translate virtual address to physical address. If [virtual_addr] is valid,
 * return 1 and write its physical counterpart to [physical_addr].
 * Otherwise, return 0 */
static int translate(
	addr_t virtual_addr,   // Given virtual address
	addr_t *physical_addr, // Physical address to be returned
	struct pcb_t *proc)
{ // Process uses given virtual address

	/* Offset of the virtual address */
	addr_t offset = get_offset(virtual_addr);
	offset++;
	offset--;
	/* The first layer index */
	addr_t first_lv = get_first_lv(virtual_addr);
	/* The second layer index */
	// addr_t second_lv = get_second_lv(virtual_addr);

	/* Search in the first level */
	struct trans_table_t *trans_table = NULL;
	trans_table = get_trans_table(first_lv, proc->page_table);
	if (trans_table == NULL)
	{
		return 0;
	}
}