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???
05/02/06 08:25
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 		 #115328 - good usage of a tool
Responding to: ???'s previous message
Andy Neil said:

Again, a compiler is just a tool - it takes a good programmer to get the best out of a compiler, too!

It is always possible to look at the odd couple of lines of compiler output in isolation and say, "I could do better" - but you need to consider the entire program as a whole.



Full ack !

As I started with C, I have rewritten some assembler applications in C and the result was, the speed and size overhead was only about 5..25% on comparison to assembler.

But on some applications the SRAM usage was less, because the linker can always better overlay local variables as any human can do.

So in one case I could remove an external connected SRAM after rewriting in C !

So C saves not only development time, it saves also cost and pcb space.


Peter


List of 61 messages in thread
TopicAuthorDate
asembly or c?            01/01/70 00:00      
    A million opinions probably            01/01/70 00:00      
      my level            01/01/70 00:00      
         C vs Assembly            01/01/70 00:00      
            Deatails Please            01/01/70 00:00      
               Later            01/01/70 00:00      
                  and is negative results as well thanks            01/01/70 00:00      
                     Pure Assembly            01/01/70 00:00      
                        writing in assembler is fine if......            01/01/70 00:00      
                        Mixed Language Programming            01/01/70 00:00      
                           Most cases            01/01/70 00:00      
                        word choice            01/01/70 00:00      
            Oh no, that old chestnut again!            01/01/70 00:00      
            C is better            01/01/70 00:00      
               No! It depends            01/01/70 00:00      
                  Absoultely!            01/01/70 00:00      
         C51 Primer !            01/01/70 00:00      
         Was            01/01/70 00:00      
         I like C, but...            01/01/70 00:00      
            blah, blah, blah            01/01/70 00:00      
               Relative choise            01/01/70 00:00      
                  Oh no, that old chestnut yet again!            01/01/70 00:00      
                     Optimization Trail            01/01/70 00:00      
                     good usage of a tool            01/01/70 00:00      
                        don't you know OVERLAYABLE            01/01/70 00:00      
                           All assemblers are not equal?            01/01/70 00:00      
                              I mentioned Keil in my post            01/01/70 00:00      
                           Why the half step only ?            01/01/70 00:00      
                              internals?            01/01/70 00:00      
                                 offtopic but...            01/01/70 00:00      
                  Please            01/01/70 00:00      
                     HHL?            01/01/70 00:00      
                        Yes            01/01/70 00:00      
                     bingo and a bit more            01/01/70 00:00      
                  powerful macros            01/01/70 00:00      
                  There's the catch!            01/01/70 00:00      
   Both            01/01/70 00:00      
   Hmmm            01/01/70 00:00      
      Choice Between Two Female            01/01/70 00:00      
   Use neither !            01/01/70 00:00      
      how can that be 'neither'            01/01/70 00:00      
      Hey - there's TWO of you            01/01/70 00:00      
          nooooo            01/01/70 00:00      
            Rumbled!            01/01/70 00:00      
      Yeeeee HAAAAAH            01/01/70 00:00      
         font in the greek alphabet that is very            01/01/70 00:00      
         Yes, but...            01/01/70 00:00      
            No bounds checks            01/01/70 00:00      
               How about an LCD driver on a '52?            01/01/70 00:00      
                  Who gives a hoot about 'memory usage' wh            01/01/70 00:00      
                     Some people do ...            01/01/70 00:00      
                        that is not the argument            01/01/70 00:00      
                           Maybe there's another way            01/01/70 00:00      
                              who is off topic now?            01/01/70 00:00      
                                 True, but why?            01/01/70 00:00      
                                    where is the diversion            01/01/70 00:00      
                                       It's a thorny issue            01/01/70 00:00      
                     The Benchmark delema            01/01/70 00:00      
                  Sieve of Erasthothenes            01/01/70 00:00      
                     The prime finder is a mathematical proce            01/01/70 00:00      
                        therefore it's inadequate on its own            01/01/70 00:00      

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