Efficient 64 bit arithmetic
Mark S. Miller
erights at google.com
Wed Sep 24 15:21:15 PDT 2014
On Wed, Sep 24, 2014 at 5:37 PM, Brendan Eich <brendan at mozilla.org> wrote:
> Hi Fabrice,
> Thanks for the proposal, I ran it by TC39 yesterday and it advanced to
> stage 0. This means work getting to stage 1, per:
> The committee liked it not only for emulating int64 and uint64 more
> efficiently (e.g., for Emscripten), even though we intend to support int64
> and uint64 value objects, but also for bignum emulation (using 64-bit
> "bigits" or "big digits", h/t Mark Miller), decimal emulation, etc.
AFAIK, coined by http://dl.acm.org/citation.cfm?id=319861 , though
Smalltalk used the technique much earlier.
> This gist
> is based on your original post, but with a name change suggested by
> several on TC39: imuluh => umulh.
> Feedback welcome. Thanks again for suggesting this -- thanks to @mraleph
> for his earlier proposal too.
> es-discuss mailing list
> es-discuss at mozilla.org
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