A fluidic die (10, 50, 70, 100, 150, 200) comprising: an array of fluid actuators; and an actuation data register configured to store actuation data that indicates each fluid actuator to actuate for a set of actuation events; wherein the fluidic die (10, 50, 70, 100, 150, 200) is characterized by further comprising: a mask register configured to store mask data that indicates a set of fluid actuators of the array enabled for actuation for a respective actuation event of the set of actuation events, wherein the mask data groups the fluid actuators in primitives, where the primitives may be identified via the mask data; and actuation logic coupled to the actuation data register, the mask register, and the respective fluid actuators, the actuation logic configured to electrically actuate a subset of the fluid actuators based at least in part on the actuation data register and the mask register for the respective actuation event; and mask control logic configured to shift the mask data stored in the mask register responsive to the respective actuation event to thereby indicate another subset of fluid actuators enabled for actuation for another respective actuation event of the set of actuation events. an array of fluid actuators; and an actuation data register configured to store actuation data that indicates each fluid actuator to actuate for a set of actuation events; wherein the fluidic die (10, 50, 70, 100, 150, 200) is characterized by further comprising: a mask register configured to store mask data that indicates a set of fluid actuators of the array enabled for actuation for a respective actuation event of the set of actuation events, wherein the mask data groups the fluid actuators in primitives, where the primitives may be identified via the mask data; and actuation logic coupled to the actuation data register, the mask register, and the respective fluid actuators, the actuation logic configured to electrically actuate a subset of the fluid actuators based at least in part on the actuation data register and the mask register for the respective actuation event; and mask control logic configured to shift the mask data stored in the mask register responsive to the respective actuation event to thereby indicate another subset of fluid actuators enabled for actuation for another respective actuation event of the set of actuation events. a mask register configured to store mask data that indicates a set of fluid actuators of the array enabled for actuation for a respective actuation event of the set of actuation events, wherein the mask data groups the fluid actuators in primitives, where the primitives may be identified via the mask data; and actuation logic coupled to the actuation data register, the mask register, and the respective fluid actuators, the actuation logic configured to electrically actuate a subset of the fluid actuators based at least in part on the actuation data register and the mask register for the respective actuation event; and mask control logic configured to shift the mask data stored in the mask register responsive to the respective actuation event to thereby indicate another subset of fluid actuators enabled for actuation for another respective actuation event of the set of actuation events.