XPost: alt.folklore.computers   
   From: ldo@nz.invalid   
      
   On Thu, 7 Aug 2025 15:44:55 +0200, Terje Mathisen wrote:   
      
   > However, since the only thing needed to do the same on current CPUs is a   
   > single shift after an aligned load, this feature costs far too much in   
   > reduced address space compared to what you gain.   
      
   Reserving the bottom 3 bits for a bit offset in a 64-bit address, even if   
   it is unused in most instructions, doesn’t seem like such a big cost. And   
   it unifies the pointer representation for all data types, which can make   
   things more convenient in a higher-level language.   
      
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