By: David Kanter (dkanter.delete@this.realworldtech.com), October 30, 2006 1:40 pm
Room: Moderated Discussions
>>>P6 and P4 do reorder loads across stores.
>>
>>With an unknown address ? Are you sure ?
>
>Yes and Yes.
The P6 definitely does not move loads ahead of stores with an unknown address. I don't know where you got that impression.
I believe that the P4 just speculatively moves the LD ahead, and then replays if things don't work out. There is definitely no prediction logic though...
DK
>>
>>With an unknown address ? Are you sure ?
>
>Yes and Yes.
The P6 definitely does not move loads ahead of stores with an unknown address. I don't know where you got that impression.
I believe that the P4 just speculatively moves the LD ahead, and then replays if things don't work out. There is definitely no prediction logic though...
DK
