From: dxforth@gmail.com   
      
   On 30/06/2025 8:26 am, Paul Rubin wrote:   
   > dxf  writes:   
   >>> But aren't 'locals' actually PICK/ROLL in disguise?   
   >> Do PICK/ROLL skim all the values off the stack and stuff them in   
   >> variables to be later popped on and off the stack like a yo-yo?   
   >   
   > Locals can be (and I thought usually are) implemented with the   
   > equivalent of PICK and POST, on either the R stack or a separate L   
   > stack.  ROLL is different, "n ROLL" actually shuffles n items around and   
   > in most situations seems kind of nuts.   
      
   PICK copies a stack item.  Agree it and ROLL have limited use.  OTOH   
   SwiftForth has -ROLL and it was recently added to Mecrisp-Stellaris.   
   What is POST ?   
      
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