CommandComputeLong appends a command which will perform a computation on a 32-bit long value. The computation will occur on the data at inputAddress and value, the output of the computuation will be written to the outputAddress.
controller->CommandComputeLong(SEQUENCER, RSICommandOperatorOR,
(void*)controllerDigitalOutputAddr, // input to computation
(void*)controllerDigitalOutputAddr, // output from computation written here
BIT_MASK );