XPost: alt.folklore.computers   
   From: anton@mips.complang.tuwien.ac.at   
      
   scott@slp53.sl.home (Scott Lurndal) writes:   
   >anton@mips.complang.tuwien.ac.at (Anton Ertl) writes:   
   >>Thomas Koenig  writes:   
   >>>Building an ARM-like instead of a 68000 would have been feasible,   
   >>>but the resulting systems would have been more expensive (the   
   >>>68000 had 64 pins).   
   >>   
   >>One could have done a RISC-VAX microprocessor with 16-bit data bus and   
   >>24-bit address bus.   
   >   
   > LSI11?   
      
   The LSI11 uses four 40-pin chips from the MCP-1600 chipset (which is   
   fascinating in itself ) for a   
   total of 160 pins; and it supported only 16 address bits without extra   
   chips.  That was certainly even more expensive (and also slower and   
   less capable) than what I suggest above, but it was several years   
   earlier, and what I envision was not possible in one chip then.   
      
   - anton   
   --   
   'Anyone trying for "industrial quality" ISA should avoid undefined behavior.'   
     Mitch Alsup,    
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)