From: rjh@cpax.org.uk   
      
   On 18/12/2025 23:36, Keith Thompson wrote:   
   > BGB  writes:   
   > [...]   
   >> There are no "true" 8 bit systems in this sense, as pretty much every   
   >> existing 8-bit CPU has had support for 16-bit operations in some way,   
   >> though often by using register pairs.   
   >   
   > I vaguely recall reading about a true 8-bit system, maybe from the 1950s   
   > or so.   
   >   
   > It had a total of 8 bits of storage.   
      
   I wrote a computer that was wholly octet-based - *Everything* was   
   8-bit. 256 bytes of RAM, 256 bytes in a separate stack, and 256   
   8-bit registers. No support for any wider type. It's a few   
   hundred lines of C, nothing difficult. So 'There are no "true" 8   
   bit systems' might or might not be true of hardware, but it's not   
   true of software.   
      
   --   
   Richard Heathfield   
   Email: rjh at cpax dot org dot uk   
   "Usenet is a strange place" - dmr 29 July 1999   
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