From: ruvim.pinka@gmail.com   
      
   On 2024-09-24 12:10, Gerry Jackson wrote:   
   > On 23/09/2024 18:02, Anton Ertl wrote:   
   >> mhx@iae.nl  (mhx) writes:   
   >>> On Mon, 23 Sep 2024 8:36:10 +0000,albert@spenarnc.xs4all.nl  wrote:   
   >>>   
   >>>> In article,   
   >>>> Ruvim  wrote:   
   >>> [..]   
   >>>>>    1 constant a   
   >>>>>    1 constant b   
   >>>>>    ' a ' b = .   
   >> ...   
   >>> Why? 'a' and 'b' are user defined words, '=' is a standard word,   
   >>> and 'true' is the expected outcome.   
   >> Are you sure?   
   >>   
   >> [~:152648] iforth   
   >> FORTH> 1 constant a  ok   
   >> FORTH> 1 constant b  ok   
   >> FORTH> ' a ' b = . 0  ok   
   >>   
   >> I actually know of no system that outputs -1.   
   >>   
   >> - anton   
   >   
   > I know it's different but:   
   >   
   > 1 constant a   
   > synonym b a   
   > ' a ' b = . \ displayed -1 in 5 out of 6 Forths I just tried, including   
   > GForth.   
   >   
   > Comparing xt's is unsafe   
   >   
      
   The same xt means the same execution semantics and nothing more.   
      
   But the same execution semantics can be identified by different xt-s.   
   Thus, from two different xt-s one cannot say whether they identify   
   different execution semantics or the same execution semantics.   
      
      
      
   --   
   Ruvim   
      
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