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

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   Message 2,915 of 4,675   
   Frank Kotler to Kevin Mardoux   
   Re: copy bytes in a file   
   11 Aug 17 16:28:23   
   
   From: fbkotler@nospicedham.myfairpoint.net   
      
   Kevin Mardoux wrote:   
   > Hi,   
   >   
   >  I try, now it is OK   
   >   
   > AaBbCcDdEe   with 12345  becomes A1B2C3D4E5   
   >   
   > It works....   
      
   Hi Kevin,   
      
   Okay. Earlier you mentioned:   
      
   inc SI   ; in the second file          ; letter T   
   inc DI   ;  in first file              ; letter M   
   movsb    ; transert byte of SI into DI ; letter h replace letter y   
      
   Doing this for the whole buffer and then writing the whole buffer at   
   once would be faster than doing the self-modifying code, seeking and   
   writing one byte at a time. Since your files are small, this probably   
   isn't too important. As long as you're getting the results you want,   
   that's the main thing...   
      
   Best,   
   Frank   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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