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Subject: Saved Another Cycle -- Woohoo!

Author: Matt Taylor

Date: 14:06:56 01/05/03

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>I was chugging away on the older binary search routine yesterday. I've modified
>it to use a 5th register. This allows me to stagger the accumulation and make
>use of extra cycles that were burning waiting on instructions to retire. It is
>amazingly efficient -- considering the maximum of 3 instructions/cycle, there
>are only 7 slots wasted across the entire routine (38 instructions). This means
>optimum execution time for this sequence is 13 cycles, and I'm doing it in 15.

Oops, did I say 15? I should correct myself. I am now doing it in 14. Only 4
slots not utilized. I fixed a bug and gained performance. :-)

-Matt

• Re: Saved Another Cycle -- Woohoo! Robert Hyatt 19:52:06 01/05/03
  • Re: Saved Another Cycle -- Woohoo! Matt Taylor 10:12:24 01/06/03
    • Re: Saved Another Cycle -- Woohoo! Vincent Diepeveen 04:06:58 01/08/03
      • Re: Saved Another Cycle -- Woohoo! Matt Taylor 09:28:57 01/09/03
        • Re: Saved Another Cycle -- Woohoo! Walter Faxon 03:31:10 01/10/03
    • Re: Saved Another Cycle -- Woohoo! Walter Faxon 22:29:12 01/06/03
      • Re: Saved Another Cycle -- Woohoo! Matt Taylor 01:03:57 01/07/03
    • Re: Saved Another Cycle -- Woohoo! Robert Hyatt 11:17:17 01/06/03
      • Explanation of Assembly Routine Matt Taylor 13:22:16 01/06/03
  • Re: Saved Another Cycle -- Woohoo! Dieter Buerssner 23:19:34 01/05/03
    • Re: Saved Another Cycle -- Woohoo! Robert Hyatt 06:34:36 01/06/03

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