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Pipeline Illustration

Pipeline Illustration. (Do NOT Print!) intended for slideshow mode only. A Quick Word. The pipeline graphical notation used in lecture is designed to be concise: Great for presenting lots of information

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Pipeline Illustration

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  1. Pipeline Illustration (Do NOT Print!) intended for slideshow mode only By SYJ For CS2100

  2. A Quick Word • The pipeline graphical notation used in lecture is designed to be concise: • Great for presenting lots of information • However, it is sometimes very hard to see what is in the processor pipeline stages at a single moment • This set of slide serves to fill in this role • Feel free to change it to any example you want to help your understanding By SYJ For CS2100

  3. This Example • This particular example is from the data hazard + forwarding: • Slide 53,54 of lecture set #16 • Use it to see: • Why forwarding is required? • How does forwarding mitigates data hazards? By SYJ For CS2100

  4. -- -- -- sub Instruction PC+4 - - - $1 - RF - - DM ALU $3 - $2 - - - IF/ID ID/EX EX/MEM MEM/WB By SYJ For CS2100

  5. -- -- sub and Instruction PC+4 - - - $2 0 RF - - DM ALU $5 20 $12 $2 - - IF/ID ID/EX EX/MEM MEM/WB By SYJ For CS2100

  6. sub -- and or Instruction PC+4 - - - $6 10 RF -20 - DM ALU $2 xx $13 $12 $2 - IF/ID ID/EX EX/MEM MEM/WB By SYJ For CS2100

  7. and sub or add Instruction PC+4 - - - $2 xx RF XXX -20 DM ALU $2 10 $14 $13 $12 $2 IF/ID ID/EX EX/MEM MEM/WB By SYJ For CS2100

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