Barcelona vs Core2

By: Gabriele Svelto (, May 17, 2007 5:38 am
Room: Moderated Discussions
David Kanter ( on 5/16/07 wrote:
>Why would mul be a complex instruction? It should decode to a single uop...

MUL writes the high and low order bits of the multiplication in two different registers so having two destination registers could be a reason for this. I'm just guessing anyway.

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