How can we minimize problems occurring because of branch., Computer Engineering

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Q. How can we minimize problems occurring because of the branch instructions?

We may use various mechanisms which may minimize the effect of branch penalty.

  • To keep multiple streams in pipeline in the case of branch
  • Pre-fetching the subsequent as well as instruction to which branch is to take place
  • A loop buffer can be used to store instructions of a loop instruction
  • Predicting whether the branch will occur or not and acting accordingly
  • Delaying the pipeline fill up until branch decision is taken.

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