[COFF] [TUHS] Re: forth on early unix

[Bakul Shah via COFF]

On Sep 23, 2025, at 4:46 PM, Alexis via COFF <coff at tuhs.org> wrote:
> 
> Bakul Shah via COFF <coff at tuhs.org> writes:
> 
>> I wonder if there is a meta-circular evaluator for forth (i.e. forth in forth)
> 
> The 'MetaCircularEvaluator' page on the c2 wiki:
> 
> https://wiki.c2.com/?MetaCircularEvaluator
> 
> includes this:
> 
> here is a simple metacircular interpreter in arbitrary dialect  Forth:
> 
>   : myInterpreter
>     begin 32 word find dup if execute else number then again ;
> 
> And here would be a compiler:
> 
>   : my-]
>     begin 32 word find dup if dup immediate? if execute else      compile then else compile-number then again ;

Thanks but... Not quite what I had in mind. See

https://ocw.mit.edu/courses/6-001-structure-and-interpretation-of-computer-programs-spring-2005/01c6ba0c5d426b5459d66340e60eb00f_lecture20evalco.pdf

For a Scheme meta-circular-evluator. It doesn't rely on
an eval function (not part of R4RS Scheme).

Though one can argue that "execute" built in so this is
indeed a MCE!