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<p>gnuemacs? There's a processor limitation or hardship? That's
never occurred to me as I'm running on Tops-20 right now, which is
plenty different from anything else. The M1 is still fairly new,
so maybe people haven't gotten around to gnuemacs just yet. Some
will insist on vi...<br>
</p>
<p>I have done a microscopic amount of programming in gnu LISP to
customize it; in other words to make gnemacs work more like
Tops-20/TENEX/ITS TECO based EMACS so that it doesn't drive me
crazy. This code functions on the other platforms I use (Mac OSX,
Windows, Ubuntu) with no modifications. Obviously some kinds of
key bindings are tricky as well as fonts.<br>
</p>
<p>If you want to call it this, gnemacs does have some compiled
code, that is C based built-in functions. I have had occasion to
look at some of the C source in order to make sure that I
understood actually what was going to be done. I don't recall
seeing any kind of a processor restriction per se, although there
could have been conditionals to better leverage certain
processors.<br>
</p>
<div class="moz-cite-prefix">I guess you could differentiate it like
the difference between MIDAS based TECO and EMACS based TECO
macros.<br>
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<pre class="moz-quote-pre" wrap="">On 11/12/21 4:07 PM, Paul Koning wrote:
I think Johnny was talking about current Emacs. That might explain why it's hard to port -- for example, there is a Mac version (AquaMacs) but no Arm64 (Apple M1 chip) version because of the trickery associated with the dump machinery.
paul
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<pre class="moz-quote-pre" wrap="">On Nov 12, 2021, at 3:49 PM, Thomas DeBellis <a class="moz-txt-link-rfc2396E" href="mailto:tommytimesharing@gmail.com"><tommytimesharing@gmail.com></a> wrote:
I'm not 100% sure, but I don't believe that ITS/Tops-20/TENEX Emacs quite does this. It is built on top of TECO, which you will recall as a language that is so terse that it looks like line noise. I don't think it's a very big stretch to compare it a byte code interpreter.
I do not recall that the EMACS libraries that are loaded are not quite compiled. They have all the comments and unnecessary white space stripped out, which would, of course speed execution.
gnuEmacs does a similar thing for the LISP code; it's still interpreted as I recall.
<blockquote type="cite"><hr width="100%" size="2"><pre class="moz-quote-pre" wrap="">On 11/12/21 10:59 AM, Johnny Billquist wrote:
<pre class="moz-quote-pre" wrap="">RMS kept the idea alive in Emacs, where even today you fire up the core system, load all kind of libraries, and then you do a memory dump, which is the runnable Emacs image.
</pre>
JOhnny
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