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???
01/11/11 07:30
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#180509 - Okay, then the following definition...
Responding to: ???'s previous message
__xdata __at 0 unsigned char XBYTE[0];
 

... should syntactically allow the same as the said macro (i.e. access bytewise the external RAM through XBYTE[0x2503] ).

I don't quite understand David's remarks about volatility - the requirements to qualify a variable defined in this way as volatile are exactly the same as for any other variable (say in internal RAM), or am I missing something?

JW

List of 25 messages in thread
TopicAuthorDate
sdcc internal error / C syntax            01/01/70 00:00      
   legality of indexing NULL pointer            01/01/70 00:00      
      bug            01/01/70 00:00      
         version            01/01/70 00:00      
            version revisited            01/01/70 00:00      
               thank you            01/01/70 00:00      
                  Fixed            01/01/70 00:00      
                     no snapshot            01/01/70 00:00      
                        works            01/01/70 00:00      
                           0 is special - but so is NULL. indexing around NULL is bad            01/01/70 00:00      
                              No guarantee that a NULL pointer points to any memory            01/01/70 00:00      
            time            01/01/70 00:00      
               I know :-(            01/01/70 00:00      
       Use of __at ?            01/01/70 00:00      
         What is "that way"?            01/01/70 00:00      
            the antique version....            01/01/70 00:00      
            XBYTE macro            01/01/70 00:00      
               Okay, then the following definition...            01/01/70 00:00      
                  RE: David's remarks about volatility            01/01/70 00:00      
   Close, but no cigar            01/01/70 00:00      
   Avoid the 'volatile'            01/01/70 00:00      
      instead of offsetting...            01/01/70 00:00      
         Dereferencing a '_REG            01/01/70 00:00      
            I agree            01/01/70 00:00      
      Use of __at ? [ed]            01/01/70 00:00      

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