Light in circles

-- hardware setup include freejalduino4 include delay enable_digital_io() D0_direction = output D1_direction = output D2_direction = output D3_direction = output D4_direction = output D5_direction = output D6_direction = output D7_direction = output -- end hardware setup  -- global initialization D0 = high D1 = high D2 = high D3 = high D4 = high D5 = high D6 = high D7 = low -- end initialization delay_1ms(250) forever loop   D0 = low   D7 = high   delay_1ms(250)   D1 = low   D0 = high   delay_1ms(250)   D2 = low   D1 = high   delay_1ms(250)   D3 = low   D2 = high   delay_1ms(250)   D4 = low   D3 = high   delay_1ms(250)   D5 = low   D4 = high   delay_1ms(250)   D6 = low   D5 = high   delay_1ms(250)   D7 = low   D6 = high   delay_1ms(250) end loop