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???
07/06/05 12:54
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 		 #96687 - a general statement on code optimization
Responding to: ???'s previous message
a general statement on code optimization:
I know that this is going to make all the Cnatics cringe but here it is:

If you do not know the processor your C will not be optimum.

Even the best optimizing compiler can not beat a good programmer e.g. see above case 1,2,3 or case 22,55,11,23 one can be optimized the other (which is so called real C) can not.

No, there is no need to globally go back to writing assembler, but that does not mean that you do not need to know it.

Erik

List of 54 messages in thread
TopicAuthorDate
code optimization            01/01/70 00:00      
   erm...            01/01/70 00:00      
   guidelines            01/01/70 00:00      
   Duh !!!!            01/01/70 00:00      
      yes its a link to learn optimization            01/01/70 00:00      
         the links provided            01/01/70 00:00      
            Really Wicked Optimisations!            01/01/70 00:00      
            counters in loops?            01/01/70 00:00      
               DJNZ            01/01/70 00:00      
                  ahh            01/01/70 00:00      
                  DOES it ?            01/01/70 00:00      
                     on Keil forum            01/01/70 00:00      
                     Yes!            01/01/70 00:00      
                     Of course it does...            01/01/70 00:00      
                        But...            01/01/70 00:00      
                           asking too much            01/01/70 00:00      
                              Not at all            01/01/70 00:00      
                           Maybe it does...            01/01/70 00:00      
                              Not when I tried it.            01/01/70 00:00      
                                 Lopp Rtation            01/01/70 00:00      
                        While you're there, Jon...            01/01/70 00:00      
                           how like a salt block?            01/01/70 00:00      
                              oh -- got it            01/01/70 00:00      
                           Overlaying and Scope            01/01/70 00:00      
                              Does it matter?            01/01/70 00:00      
                                 debugging            01/01/70 00:00      
   Previously on 8052.com            01/01/70 00:00      
      yes its in the board            01/01/70 00:00      
      IAR Article - Getting the Least            01/01/70 00:00      
   To be taken with a pinch of salt            01/01/70 00:00      
      more like a salt block            01/01/70 00:00      
      Re            01/01/70 00:00      
         switch            01/01/70 00:00      
            Switch/Case Optimization            01/01/70 00:00      
               Re: Switch/Case Optimization            01/01/70 00:00      
                  Look Why            01/01/70 00:00      
               Jon, I may have made a mistake            01/01/70 00:00      
         Big switches            01/01/70 00:00      
         Was?            01/01/70 00:00      
            Link to newer version            01/01/70 00:00      
               Hitex; Chris Hills            01/01/70 00:00      
                  Draft!            01/01/70 00:00      
   intermediate values in lookup tables            01/01/70 00:00      
      Generating lookup tables            01/01/70 00:00      
   a general statement on code optimization            01/01/70 00:00      
      Craft            01/01/70 00:00      
      Corrections            01/01/70 00:00      
         urban legends            01/01/70 00:00      
            Been there.            01/01/70 00:00      
               I think this is closer to the truth            01/01/70 00:00      
                  I just realize that the above            01/01/70 00:00      
               EE/CS            01/01/70 00:00      
            Micro-Optimisations - real-life example            01/01/70 00:00      
               manual optimization            01/01/70 00:00      

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