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???
01/22/10 16:56
Modified:
  01/22/10 17:16
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 		 #172670 - Reducing to Essentials
Responding to: ???'s previous message
Although I didn't go straight to assembly, I've been rebuilding the code piece by piece from the ground up and caught the problem.

It turns out there was something funny in the memory map that was stepping on the variable that needed to be updated (though the compiler didn't complain). I forced the offending structure using _at_ and the memory map cleaned up and the loop is behaving as expected.

That "movx @dptr,A" command is still failing occasionally, but it seems to be related to memory being stepped on. I found it at another location and am tracing why it's not moving successfully there.

Thanks everyone, and if I ever find the magic switch on the compiler to avoid this I'll post back.

List of 30 messages in thread
TopicAuthorDate
Simulation vs. Embedded Discrepancy            01/01/70 00:00      
   Hardware fault?            01/01/70 00:00      
      Responding to: Andy Neil's previous message            01/01/70 00:00      
   illustration of edge difference?            01/01/70 00:00      
      SPI Phase/Polarity            01/01/70 00:00      
         address instead of value            01/01/70 00:00      
            Doesn't seem coincidental            01/01/70 00:00      
               MOVX command fails            01/01/70 00:00      
                  Definitely sounds like a hardware fault!            01/01/70 00:00      
                  Have you tried doing this in ASM?            01/01/70 00:00      
                     The loop in ASM            01/01/70 00:00      
                        I think...            01/01/70 00:00      
                        Sounds like hardware again            01/01/70 00:00      
                           If this were reduced to the essentials ...            01/01/70 00:00      
                              Oh Richard            01/01/70 00:00      
                        What I was after ...            01/01/70 00:00      
                           Reducing to Essentials            01/01/70 00:00      
                              RE: Magic Switch On The Compiler            01/01/70 00:00      
                                 Emulator trace            01/01/70 00:00      
                                    Yes            01/01/70 00:00      
                                       SOLVED            01/01/70 00:00      
                                          A bit ocnfused            01/01/70 00:00      
                                             Emulator and AUXR            01/01/70 00:00      
                                                Things do tend to work best...            01/01/70 00:00      
   one guess with a question            01/01/70 00:00      
      Memory has plenty of gaps            01/01/70 00:00      
         That doesn't make sense!            01/01/70 00:00      
            Sloppy language on my part            01/01/70 00:00      
      Am I missing something            01/01/70 00:00      
      questions/request            01/01/70 00:00      

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