Queue having long word length.

摘要

A queue apparatus comprising a multi-stage queue latch for storing instruction codes or data in a first-in first-out manner; a first queue pointer associated to the queue latch for indicating a read position of an upper half place portion of the instruction codes or data stored in the queue latch and a second queue pointer associated to the queue latch for indicating a reading position of a lower half place portion of the instruction codes or data stored in the queue latch. An exchanger is coupled to the queue latch to receiving the upper and lower half place portions of the instruction codes or data read out from the queue latch and for selectively exchanging the positions of the received upper and lower half place portions.