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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Scumbria who wrote (95352)	2/27/2000 10:31:00 AM
From: Dan3	Read Replies (3) \| Respond to of 1578124

Re: longer pipelines are simpler to design than shorter ones... Hi Scumbria, Thanks for the interesting post. I can see how each stage would be simpler, since there is less work to do. Is there anything about a longer pipeline that is problematic? Since they are generally an evolution beyond short pipelines, it seems that there would be. Is there more to it than storing the last N=pipeline length instructions and results in case of a mis-prediction? Or can most (or at least, enough) instructions be safely retired in fewer stages? Does the scheduler now need to (accurately, in order to maintain performance) predict branches further out? Regards, Dan