How Can We Achieve The Pipelining Concept In 8086 Microprocessor?

How Can We Achieve The Pipelining Concept In 8086 Microprocessor? Pipelining has become possible due to the use of queue. BIU (Bus Interfacing Unit) fills in the queue until the entire queue is full. BIU restarts filling in the queue when at least two locations of queue are vacant. Which block of 8086 microprocessor helps