addr_tmp := mul_tmp((addr_tmp'length - 1) downto 0);
addr_tmp := std_logic_vector(unsigned(addr_tmp) + unsigned(pc_spalte));
address_next <= addr_tmp;
addr_tmp := mul_tmp((addr_tmp'length - 1) downto 0);
addr_tmp := std_logic_vector(unsigned(addr_tmp) + unsigned(pc_spalte));
address_next <= addr_tmp;