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From: dxf <dxforth@gmail.com>
Newsgroups: comp.lang.forth
Subject: Re: Stack vs stackless operation
Date: Wed, 26 Feb 2025 11:35:50 +1100
Organization: i2pn2 (i2pn.org)
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On 25/02/2025 11:10 pm, LIT wrote:
>>> In case of slower ITC non-optimizing Forths - like
>>> fig-Forth, as the most obvious example - the "boost"
>>> may be noticeable.
>>> I'll check that.
>>
>> code +> ( x y z -- )
>>   dx pop  cx pop  bx pop  0 [bx] ax mov  cx bx xchg
>>   0 [bx] ax add  dx bx xchg  ax 0 [bx] mov  next
>> end-code
>>
>> Timing (adjusted for loop time):
>>
>>  var1 @ var2 @ + var3 !   8019 mS
>>  var1 var2 var3 +>        5657 mS
> 
> So even in case of fast DTC Forth, like DX Forth,
> it's already something worth of closer attention,
> I believe.
> ...

I remain skeptical of such optimizations.  Not even twice the performance
and the hope it represents a bottle-neck in order to realize that gain.