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Re: Emacs design and architecture

From: Eli Zaretskii
Subject: Re: Emacs design and architecture
Date: Sun, 17 Sep 2023 19:23:48 +0300

> From: Helmut Eller <eller.helmut@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  Yuri Khan <yuri.v.khan@gmail.com>,
>   dmitry@gutov.dev,  owinebar@gmail.com,  rms@gnu.org,  emacs-devel@gnu.org
> Date: Sun, 17 Sep 2023 17:44:35 +0200
> Out of curiosity: has somebody tried to vectorize the display code?

Not that I know of.

> I don't know the details, but very abstractly speaking there seems to be
> an iterator that loops over the characters in a buffer and computes
> various things as it goes along.  Could some of those computations be
> done on vectors, of say 8, characters?

The decisions are made after each processed buffer/string position,
and frequently processing of position N depends on results of
processing of position N-1.  If these caveats don't get in the way of
vectorizing, I guess we could try that.

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