16 $0010 POKMSK ||BIT||DECIMAL||FUNCTION |7|128| The BREAK key is enabled. |6|64| The "other key" interrupt is enabled. |5|32| The serial input data ready interrupt is enabled. |4|16| The serial output data required interrupt is enabled. |3|8| The serial out transmission finished interrupt is enabled. |2|4| The POKEY timer four interrupt is enabled (only in the "B" or later versions of the OS ROMs). |1|2| The POKEY timer two interrupt is enabled. |0|1| The POKEY timer one interrupt is enabled.