From: anton@mips.complang.tuwien.ac.at   
      
   Krishna Myneni  writes:   
   >Yes, kForth uses this method. DO pushes three items onto the return   
   >stack, the two loop parameters, and the virtual instruction pointer.   
      
   Thanks.  You can find the performance benefit from that in gforth-fast   
   in the right bar of each benchmark   
   .  It   
   provides pretty good speedups for siev, bubble, and matrix, and small   
   speedups in sha512.   
      
   - anton   
   --   
   M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html   
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