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???
11/13/08 18:15
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 		 #160022 - That's the point!
Responding to: ???'s previous message
Richard Erlacher said:
I'm still not clear on why it makes a difference whether the memory range in question is on-chip or off. I can see how it could become troublesome, but, from what little I've done with it, it's just an "external" RAM block that's not off-chip. How your code talks to it is indifferent to its physical location.

Absolutely!

As far as the CPU is concerned, it's all just "MOVX-addressed memory" - which is why I suggest that this is the term that we should move.

The problem comes with people who mistakenly assume (or are misled to believe) that the "external" is to be taken literally, and that there is some inherent difference between on-chip and off-chip XDATA.


List of 34 messages in thread
TopicAuthorDate
a simple SETB question            01/01/70 00:00      
   SETB from 20h to 2FH            01/01/70 00:00      
      assembler missed this one            01/01/70 00:00      
         I know of none that can't            01/01/70 00:00      
   what about this?            01/01/70 00:00      
      try ORL to set any bit in internal RAM            01/01/70 00:00      
         wrong, nonstandard and why            01/01/70 00:00      
            ORL, Set any bit (more informative)            01/01/70 00:00      
               iram            01/01/70 00:00      
                  Where is that defined?            01/01/70 00:00      
                     my word was not 'defined' but            01/01/70 00:00      
                        a rose, by any other name ...            01/01/70 00:00      
                           I think Erik has it?            01/01/70 00:00      
                              aliased/overlayed            01/01/70 00:00      
                                 Fair enough            01/01/70 00:00      
                              pDATA?            01/01/70 00:00      
                                 Why do you think 64TB would be enough?            01/01/70 00:00      
                                    It would not be            01/01/70 00:00      
                                       Tools are important for size            01/01/70 00:00      
                                          That's why there's ASM to use instead            01/01/70 00:00      
                                       this flies against some previous posts of yours            01/01/70 00:00      
                                          It's like herding cats            01/01/70 00:00      
                                             Flame bait?            01/01/70 00:00      
                                                No ... not really            01/01/70 00:00      
                                                   yes            01/01/70 00:00      
                                 PDATA & XDATA            01/01/70 00:00      
                                    I won't argue that ... but ...            01/01/70 00:00      
                                       Agreed, but...            01/01/70 00:00      
                                          It is seldom that simple ...            01/01/70 00:00      
                                             That's the point!            01/01/70 00:00      
                                             since you are really interested            01/01/70 00:00      
                                                Thanks!            01/01/70 00:00      
      Yes, that is the way I normally do it            01/01/70 00:00      
      WHY TO DISTURB ACC ?            01/01/70 00:00      

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