asda

                if (bit_counter = 0) then
                    -- Reception handling - if DAvail and DTaken are down, transfer new byte into output register and raise DAvail
                    if transfer_data_out then
                        if (rd='1' or rd_multiple='1') then
                            if sDavail='0' and dout_taken='0' then
                                -- If we're ok to transfer data, then do it
                                -- otherwise wait here until dout_taken rises
                                set_davail <= true;
                                new_byte_counter <= byte_counter - 1; set_byte_counter <= true;
                                -- Next byte
                                new_bit_counter <= 7;
                                if byte_counter=1 then
                                    new_transfer_data_out <= false;
                                    new_sr_return_state <= READ_BLOCK_CRC;
                                    set_sr_return_state <= true;
                                end if;
                                new_state <= SEND_RCV;
                            end if;
                        else
                            -- Abort transfer
                            new_byte_counter <= byte_counter - 1; set_byte_counter <= true;
                            -- Next byte
                            new_bit_counter <= 7;
                            if byte_counter=1 then
                                new_transfer_data_out <= false;
                                new_sr_return_state <= READ_BLOCK_CRC;
                                set_sr_return_state <= true;
                            end if;
                            new_state <= SEND_RCV;
                        end if;
                    else
                        new_bit_counter <= 7;
                        new_state <= sr_return_state;
                        new_byte_counter <= byte_counter - 1; set_byte_counter <= true;
                    end if;
                else
                    new_bit_counter <= bit_counter - 1;
                    new_data_out <= data_out(6 downto 0) & '1';
                    new_state <= SEND_RCV;
                end if;
            else
                new_sclk <= '1';
                new_clock_divider <= clock_divider - 1;
            end if;