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???
06/29/05 11:32
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#96172 - Alternatively...
Responding to: ???'s previous message
You could equally well modify the macro:

#define _10msec ((uint)((65536 - ((1000 * 10) / tic12))))

But please take note of the comments elsewhere in this thread regarding the use of floating point values in this type of calculation.

"In the former case Keil produces a "Bad operand >> error", whereas the second case it produced the indended code."

Keil is correct to give the 'bad operand' error. Having read the rest of this thread do you now understand why?

List of 31 messages in thread
TopicAuthorDate
defination under Keil            01/01/70 00:00      
   int/float            01/01/70 00:00      
   IAR PreProcessor VS Keil            01/01/70 00:00      
      confusion            01/01/70 00:00      
         just doing text subistituons I guess            01/01/70 00:00      
            un            01/01/70 00:00      
               preprocessor            01/01/70 00:00      
                  Some confusion abounds...            01/01/70 00:00      
                     Wrong again!            01/01/70 00:00      
                        Take is easy...            01/01/70 00:00      
                           The important bit...?            01/01/70 00:00      
         Floating-point not supported in eval            01/01/70 00:00      
      preprocessor maths            01/01/70 00:00      
         I was being carelessly loose............            01/01/70 00:00      
            Keil Test            01/01/70 00:00      
            Save you the trouble            01/01/70 00:00      
               Oh            01/01/70 00:00      
         preproccessor maths            01/01/70 00:00      
            ##########            01/01/70 00:00      
               thats the confusion            01/01/70 00:00      
                  In context            01/01/70 00:00      
                     Thanks            01/01/70 00:00      
                  Think about it            01/01/70 00:00      
   Aside - 'C' #define names            01/01/70 00:00      
      good coding practices            01/01/70 00:00      
   Thank you            01/01/70 00:00      
      Alternatively...            01/01/70 00:00      
         re: Alternatively...            01/01/70 00:00      
      Not a good idea            01/01/70 00:00      
         Not a good idea            01/01/70 00:00      
         floating point in ISRs            01/01/70 00:00      

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