Hardware circular buffer

<programming, hardware> digital signal processors which support hardware circular buffers automatically generate and increment pointers for memory accesses which wrap to the beginning of the buffer when its end is reached, thus saving the time and instructions otherwise needed to ensure that the address pointer stays within the boundary of the buffer, and speeding the execution of repetitive DSP algorithms.

Digital Signal Processor For Digital Audio Applications (http://www.analog.com/publications/documentation/21065L_Audio_Tutorial.PDF).

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hard link hard linking hard sector hardware Hardware Abstraction Layer	circular buffer	Hardware Description Language hardware handshaking hardwarily hard-wired Harris Semiconductor Ltd.