A dispatcher circuit receives sets of instructions from an instructing entity. Instructions of the set of a first type are put into a first queue circuit, instructions of the set of a second type are put into a second queue circuit, and so forth. The first queue circuit dispatches instructions of the first type to one or more processing engines and records when the instructions of the set are completed. When all the instructions of the set of the first type have been completed, then the first queue circuit sends the second queue circuit a go signal, which causes the second queue circuit to dispatch instructions of the second type and to record when they have been completed. This process proceeds from queue circuit to queue circuit. When all the instructions of the set have been completed, then the dispatcher circuit returns an “instructions done” to the original instructing entity.