A processor including a large register file utilizes a dirty bit storage coupled to the register file and a dirty bit logic that controls resetting of the dirty bit storage. The invention also relates to the a photocrosslinkable composition as a negative photosensitive resin in a photolithography process. The licensing agent then receives the data structure from the client having designated fields encrypted according to the first key. Transmitted data can be coded with Forward Error Correction codes that can allow determination of bit error rates resulting from transmission.