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Re: Prolegomena to any future decimal discussion



This comment begs *major* architectural questions, because it assumes the existence of dedicated non-memory-format FP registers and indeed a of a load/store architecture in general. This assumption precludes most of the current research architectures for high-performance computation, including flow machines, computation-in-memory approaches, bit-serial computation, most grid machines, and so on, and even would cause trouble for such traditional architectures as vector and VLIW.

We standardize an approach that assumes (nay requires) legacy hardware at our peril.

Ivan

John R Harrison wrote:
<snip

Similar remarks apply to hardware based on millennial digits or pure
binary, but once again the difference between DPD and ZBD is not
dramatic because the conversion cost in hardware is not very large
and need apply only to loads and stores.

<snip>

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