anonymous (no@spam.com) on 5/22/07 wrote:
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>>Intel fused-uop can be a load+exec or store adress+store data [...]
>
>Minor correction: both of Intel's uOP fusions can happen at the same time.

>Minor correction: for Intel the last example is 4 uOPs (load, execute, store
>address, and store data) or 1 fOP (both fusions happen at the same time).

Do you have any document saying that?
Both fusions can happen at same time for a given instruction, but generates 2 fOP, in the last example there are 4 uOPs, the two first can be fused, and the two last can be fused too, generating 2 fused uOPs, it is new for Core 2, Pentium M wasn't able to use micro fusion in this case.