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   comp.lang.forth      Forth programmers eat a lot of Bratwurst      117,927 messages   

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   Message 117,602 of 117,927   
   dxf to minforth   
   Re: Generating a random sequence of Fort   
   02 Oct 25 19:49:29   
   
   From: dxforth@gmail.com   
      
   On 2/10/2025 4:42 am, minforth wrote:   
   > Am 01.10.2025 um 17:11 schrieb Hans Bezemer:   
   >> I used something similar - but with a whole slew of stack operations. Very   
   handy thingy. I use it until this day.   
   >>   
   >> ( abc -- abcabc)   >r over over r@ rot rot r> \ >r 2dup r@ -rot r>   
   >>   
   >   
   > Different and probably not as efficient as your code generator:   
   >   
   > MinForth 3.6   
   > # : 3DUP { a b c == a b c a b c } ;   
      
   For 3DUP I believe this is the one to beat:   
      
   : 3DUP ( a b c -- a b c a b c )  dup 2over rot ;   
      
   With NTF/LFX the locals version will break even.  For others, well, it may   
   be better not to look.  For a straight-forward example of 'stack juggling',   
   locals handle it rather poorly.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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