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

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    From: Damjan Lampret<damjanl@o...>
    Date: Sat May 15 00:52:07 CEST 2004
    Subject: [openrisc] 1 bit condition code register
    Top
    Actually, I was doing a lot of analysis in 1999 looking at the Alpha model
    and comparing it to the traditional model of flags. If you remember at the
    time I defined only one true flag and that is "F" flag; the one set by sfXX
    instructions. Everything else like CY came later and these are not real
    flags... The alpha model doesn't have much advantage.

    regards,
    Damjan

    ----- Original Message -----
    From: "Johan Rydberg" <jrydberg@g...>
    To: "List about OpenRISC project" <openrisc@o...>
    Sent: Friday, May 14, 2004 11:48 AM
    Subject: Re: [openrisc] 1 bit condition code register


    >
    > On Fri, 14 May 2004, kavi wrote:
    >
    > : As the developers state, this permits for higher performance in terms of
    > : cycle time
    > : as well as deeper pipelines.
    >
    > That might very well be true, but I'm afraid that it's a bit too late
    > to change the OpenRISC 1000 ISA.
    >
    > ~j
    > _______________________________________________
    > http://www.opencores.org/mailman/listinfo/openrisc
    >


     
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