I see what you mean now. I agree that each of the low-order bits of the 106-bit product is available at some point. Not necessarily simultaneously, but yes, it

I see what you mean now. I agree that each of the low-order bits of the 106-bit product is available at some point. Not necessarily simultaneously, but yes, it seems like little additional effort for processor designers to keep these somewhere and assemble them in another register or something. For some reason (maximum depth reached?) there is no “reply” link at the bottom of the post of yours at which I understood, so I am replying here.