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   comp.lang.asm.x86      Ahh, the lost art of x86 assembly      4,675 messages   

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   Message 3,480 of 4,675   
   Terje Mathisen to James Van Buskirk   
   Re: Fast Fizz Buzz program   
   20 Jul 18 19:31:02   
   
   From: terje.mathisen@nospicedham.tmsw.no   
      
   James Van Buskirk wrote:   
   > "Terje Mathisen"  wrote in message news:pisv6a$1hkd$1@gioia.aioe.org...   
   >> It can be significantly faster to store data from SIMD registers than   
   >> to copy it from the memory image, i.e. from one address to another.   
   >   
   >> It is only if you replace the entire program with a single   
   >> (unbuffered, so needs 4kB aligned data array) write() call that an   
   >> immediate array will be faster.   
   >   
   > But shouldn't the task be converting a stream of random inputs   
   > into Fizz Buzz rather that a trivial arithmetic progression?  Sounds   
   > like more opportunity for fun assembly programming to me.   
   >   
   That's actually an interesting challenge!   
      
   Write the fastest possible function to print fixx/buzz/number given a   
   random 32 (or 64?) bit input.   
      
   I.e. this requires calculating %3 & %5 as fast as possible, while at the   
   same time doing bin to ascii conversion.   
      
   Terje   
      
   --   
   -    
   "almost all programming can be viewed as an exercise in caching"   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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