From: joemonk64@gmail.com   
      
   > That processor with no visible registers sounds like a    
   > pie-in-the-sky design to me. You may as well design    
   > the x64 in 1970. You can do anything on paper.    
      
   But it's not ... it was actually produced along with an OS, written in ADA.   
      
   > Explain to me why segmented memory is not the    
   > right approach to solving this problem in an    
   > environment with severe limits on memory, but    
   > still more than a single register can address.    
      
   The right approach, IMHO, has always been linear addressing. Think about how   
   the mainframe does it ... linear address space, with an ASID. So you could   
   have x^asid linear address spaces.    
      
   If you remember the z80, then you understand. The z80, as a 16-bit address bus   
   processor, was limited to 64K of directly addressable memory. But with   
   bank-switching, you could put lot of memory on a system, and switch it in and   
   out. There were many    
   minicomputers in the '80s that did that.   
      
   Joe   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)