RAW Dependency, Latencies (cont)

• If define-use latency = 1, then define-use delay is 0 and the pipeline is not stalled.

  • This is the case for most simple instructions in the FX pipeline
  • Non-pipelined FP operations can have define-use latencies from a few cycles to a 10’s of cycles.

• Load-use dependency, Load-use latency, load-use delay refer to load instructions load r1, 4(r2) add r3, r1, r2Definitions are the same as define-use dependency, latency, and delay.

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