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From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups: comp.arch
Subject: Re: Byte Addressability And Beyond
Date: Wed, 29 May 2024 07:59:21 GMT
Organization: Institut fuer Computersprachen, Technische Universitaet Wien
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Lawrence D'Oliveiro <ldo@nz.invalid> writes:
>The fixed-size things are references to objects. Or in a lower-level 
>language like C, they could indeed be pointers/indexes into an array of 
>code points.

There is no need for UTF-32 for such an approach.  Just let the
pointers/indexes point to the start of the character in UTF-8
represntation.

>[...] we still have easy random access, and the length of the 
>array is the number of characters.

Both of which are rarely necessary.

But sure, if you need that, the approach of having an array of
pointers to characters in UTF-8 representation works, while converting
to UTF-32 does not help at all.

- anton
-- 
'Anyone trying for "industrial quality" ISA should avoid undefined behavior.'
  Mitch Alsup, <c17fcd89-f024-40e7-a594-88a85ac10d20o@googlegroups.com>