Re: [Gems-users] Opal decode error: statici::decodeFails.


Date: Fri, 26 Sep 2008 12:42:15 -0400
From: "wei wang" <apollo.mobility@xxxxxxxxx>
Subject: Re: [Gems-users] Opal decode error: statici::decodeFails.
i'm running solaris10 on serengeti. it turns out that the instructions fail to decode are not implemented in Opal. i checked UltraSparc Architecture Manual. one is FXOR (op3 = 110110, opf = 001101100), the other is FPADD32S (op3=110110, opf=001010011). where should i start to implement these instructions? thanks.

wei



On Fri, Sep 26, 2008 at 9:22 AM, Luke Yen <lyen@xxxxxxxxxxx> wrote:

  Please provide more info for the errors.  What target are you
simulating?  Can you disassemble the PC for this instruction in your
binary in gdb and give us the human readable version of this instruction?

  This error is most likely due to a rare instruction that isn't currently
implemented in Opal.  You probably need to implement its functionality.
Search previous posts for details.

  Luke

On Thu, 25 Sep 2008, wei wang wrote:

> ### statici::decodeFails. line:2849. inst=0x8fb48d94 pa=49585936 cycle[ 0 ]
> 1000 1111 1011 0100:1000 1101 1001 0100
>
> i get hundreds of above error messages starting from cycle 0 when running
> opal. This happened when i was running two SPEC2K (apsi, art) benchmarks in
> a two core system. and the instructions that fails to decode come from
> apsi,and they are all kernel mode instructions. however, if running each
> program individually in a single core system, no error occurred. any
> suggestions?
>
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