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Cortex A8 Instruction Cycle Timing

barney vardanyan
Note: This was originally posted on 17th March 2011 at http://forums.arm.com

Hi) sorry for bad English

I need to count latency for two instruction, and all I have is the arm cortex A 8 documantation(charter 16) !
but I have no idea how can do this work using that documantation(
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  • 0
    Note: This was originally posted on 27th April 2011 at http://forums.arm.com


    I need something like this
    http://pulsar.websha...sult.php?lng=fr


    I used above link to check cycles of some ARM instruction. However, I confused about the pipeline column.
    For example, there are "no, n1, 0, 1"  that happen in 1 cycle. They seem to be stages of pipeline. However, Cortex-A8 has 13 stages of pipeline and there is no name like these name. Also, 1 stage takes 1 cycle, right?

    Please give me some explanations.
Reply
  • 0
    Note: This was originally posted on 27th April 2011 at http://forums.arm.com


    I need something like this
    http://pulsar.websha...sult.php?lng=fr


    I used above link to check cycles of some ARM instruction. However, I confused about the pipeline column.
    For example, there are "no, n1, 0, 1"  that happen in 1 cycle. They seem to be stages of pipeline. However, Cortex-A8 has 13 stages of pipeline and there is no name like these name. Also, 1 stage takes 1 cycle, right?

    Please give me some explanations.
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