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From: Lars Brinkhoff <lars.spam@nocrew.org>
Newsgroups: comp.lang.forth
Subject: Re: Forth in Javascript?
Organization: nocrew
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Date: Wed, 03 May 2017 19:36:20 +0200
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Brad Eckert <hwfwguy@gmail.com> writes:
> From the repositories I looked at, they are all written in
> JavaScript. No surprise, but I'd rather see a JS kernel loading a
> bunch of Forth.  I think a bytecode interpreter implemented as a giant
> switch statement would be pretty fast.

The asm.js target in my Forth is like that.  One part of the kernel is
written in Forth, and the other part consists of primitives written in
JavaScript.  The kernel loads the rest of the system from Forth source.

Every primitive has a unique ID, which is used by a switch statement in
the inner interpreter.