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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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principle of designing pipeline processors

Principle of Designing Pipeline Processors

(Design Problems of Pipeline Processors)

internal forwarding and register tagging
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.
internal forwarding
Internal Forwarding
  • Memory access is slower than register-to-register operations.
  • Performance can be enhanced by eliminating unnecessary memory accesses
internal forwarding1
Internal Forwarding
  • This concept can be explored in 3 directions:
  • Store – Load Forwarding
  • Load – Load Forwarding
  • Store – Store Forwarding
example
Example

EXAMPLE

example1
Example

EXAMPLE