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    Navigation: All forums > Openrisc > Message List > Message Post

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    From: =?unknown-8bit?Q?Gy=F6rgy?= 'nog' Jeney<nog@s...>
    Date: Tue Jan 25 15:48:19 CET 2005
    Subject: [openrisc] [or1ksim #3] Warning fixes for insnset.c and execute.c
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    On 0, Matjaz Breskvar <phoenix@o...> wrote:
    > I've been looking over the patches you sent. Everything looks
    > nice (provided it doesn't break other stuff, but we'll see that later),
    > just the big generate.c patch in previous email is not obvious to me.

    Could you elaborate abit more? I don't understand what your trying to say. You
    mean I shouldn't need to change insnset.c? Or are you talking about the
    destination operand stuff?

    > Is it right to assume that the net effect of all the patches is:
    > - rD is always destination operand. the code now relies upon
    > this. ie. there can always be at most one destination register, when
    > before this wasn't neccessery (i know it's not needed for now). the gain
    > is faster simulator execution. (would you happen to have any esstimate?)

    I have done this because I removed the eval_openrand{8,16,32} and the
    instructions themselves do the set_mem{8,16,32} after my patches. Is it
    forseable that there shall be multiple destination operands for some
    intructions (I haven't check the vector instructions)?

    > - cleanups/warnings elimination

    For now that's basically it. I'm doing all this cleanup work to be able to bolt
    my dynamic recompiler into or1ksim. In a dynamic recompiler it becomes rather
    obvious the amout of stuff that has to be done to execute 1 instruction and I'm
    just reduceing that number. I don't actually have any benchmarks.

    >
    > If this is so i say let's commit the changes and cross our finger
    > it doesn't break anything. ;)

    Hope so...

    nog.

    ReferenceAuthor
    [openrisc] [or1ksim #3] Warning fixes for insnset.c and execute.cMatjaz Breskvar

     
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