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   comp.arch      Apparently more than just beeps & boops      131,241 messages   

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   Message 130,285 of 131,241   
   Anton Ertl to MitchAlsup   
   Re: Tonights Tradeoff   
   13 Nov 25 21:50:59   
   
   From: anton@mips.complang.tuwien.ac.at   
      
   MitchAlsup  writes:   
   >   
   >anton@mips.complang.tuwien.ac.at (Anton Ertl) posted:   
   >   
   >> Michael S  writes:   
   >> >On Thu, 13 Nov 2025 09:24:20 GMT   
   >> >anton@mips.complang.tuwien.ac.at (Anton Ertl) wrote:   
   >> >> Actually, with uint128_t you get pretty far, and _BitInt(bits) has   
   >> >> been added in C23, which has good potential, but is not quite there.   
   >> >   
   >> >Yes, that what I wrote above.   
   >> >As far as BGB is concerned, the big disadvantage is absence of support   
   >> >by MSVC.   
   >>   
   >> Why would that be a disadvantage?  If MSVC does not do what he needs,   
   >> there are other C compilers to choose from.   
   >>   
   >> >> Builtins for add-with-carry and intrinsics are somewhat disappointing.   
   >> >>   
   >> >> - anton   
   >> >   
   >> >For me the most disappointing part is that different architectures   
   >> >have different spellings.   
   >>   
   >> For intrinsics that's by design.  They are essentially a way to write   
   >> assembly language instructions in Fortran or C.  And assembly language   
   >> is compiler-specific.   
   >   
   >{Pedantic mode=ON}   
   >Assembly language is ASSEMBLER specific.   
      
   What I wanted to write was "And assembly language is   
   architecture-specific".   
      
   It's the builtin function that are compiler-specific.   
      
   - 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)   

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