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Chapter One Introduction to Pipelined Processors

Chapter One Introduction to Pipelined Processors. Principle of Designing Pipeline Processors. (Design Problems of Pipeline Processors). Internal Data Forwarding and Register Tagging. Internal Forwarding and Register Tagging.

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Chapter One Introduction to Pipelined Processors

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  1. Chapter One Introduction to Pipelined Processors

  2. Principle of Designing Pipeline Processors (Design Problems of Pipeline Processors)

  3. Internal Data Forwarding and Register Tagging

  4. Internal Forwarding and Register Tagging • Internal Forwarding: It is replacing unnecessary memory accesses by register-to-register transfers. • Register Tagging: It is the use of tagged registers for exploiting concurrent activities among multiple ALUs.

  5. Internal Forwarding • Memory access is slower than register-to-register operations. • Performance can be enhanced by eliminating unnecessary memory accesses

  6. Internal Forwarding • This concept can be explored in 3 directions: • Store – Load Forwarding • Load – Load Forwarding • Store – Store Forwarding

  7. Store – Load Forwarding

  8. Load – Load Forwarding

  9. Store – Store Forwarding

  10. Example EXAMPLE

  11. Example EXAMPLE

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