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???
01/08/08 15:02
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#149142 - Actually...
Responding to: ???'s previous message
Christoph Franck said:
while( (((int) TH1)<<8) + int(TL1) )<Delay);

should be "correct", but that still does not solve the atomicity issue.


Actually, assuming that we are talking about C, the second cast is not a valid C-style cast. Casting in the way shown in the second cast is a functional cast which is only valid in C++, the first cast is a correct C-style cast. I'm not sure if the second cast is necessary one way or another.








List of 27 messages in thread
TopicAuthorDate
Number of CPU cycle for 8051 function call            01/01/70 00:00      
   Do it in assembler            01/01/70 00:00      
   Delay functions            01/01/70 00:00      
   A related trick            01/01/70 00:00      
      Offset            01/01/70 00:00      
         Offset            01/01/70 00:00      
            Sure            01/01/70 00:00      
               Over Drive?            01/01/70 00:00      
      a refinement            01/01/70 00:00      
      NOPs are so bad waste of space...            01/01/70 00:00      
         waste of space... waste of time            01/01/70 00:00      
            fixed delay            01/01/70 00:00      
               Variable delay            01/01/70 00:00      
                  determinism of the cache            01/01/70 00:00      
               there are no cache misses in 'linear code'            01/01/70 00:00      
                  I got only ONE cache miss...            01/01/70 00:00      
      Old Keil Thread            01/01/70 00:00      
   What about a Delay like this.            01/01/70 00:00      
      No, it won't.            01/01/70 00:00      
         Ok.            01/01/70 00:00      
         also            01/01/70 00:00      
      Also ...            01/01/70 00:00      
         Actually...            01/01/70 00:00      
            will.            01/01/70 00:00      
               ANSI C            01/01/70 00:00      
                  Keil option: Disable ANSI casts            01/01/70 00:00      
         typo.            01/01/70 00:00      

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