Re: I found a FORTH stack optimzer, but could use a better

On 1/6/08 9:24 AM, in article
these3rt0only-3DB255.15242806012008@[EMAIL PROTECTED]
 "Roelf Toxopeus"
<these3rt0only@[EMAIL PROTECTED]
> wrote:

> In article <flqcpa$88f$1@[EMAIL PROTECTED]
>,
>  "Rod Pemberton" <do_not_have@[EMAIL PROTECTED]
> wrote:
> 
> [...]
> 
>> 
>> All those seem to reorder the stack in FORTH, I'm interested in
something
>> which rewrites FORTH words in terms of other FORTH words, especially
words
>> which operate on the stack.  I've basically exhausted what their
program can
>> do, but when I realized that it had a problem with generating sequences
>> using low valued PICK and ROLL's, I was hoping for something better.
>> 
>> 
>> Rod Pemberton
> 
> In MacForth we have something called Optimizer Reductions.
> Patterns of words are reduced to single pieces of code.
> 
> : tt swap drop ;    will be compiled as    : tt nip ;
> 
> You can add new patterns and their reduction with
> add-pattern ( xt1 .. xtn n replacemntxt -- )
> 
> ' swap ' + 2 ' haha add-pattern

I looked at the page for MacForth.
I was surprised that you cannot download a demo without sending an email
with your "details" including your background with Forth!

Seems a little too invasive for me!