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???
04/23/07 14:50
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 		 #137811 - no, YOU did
Responding to: ???'s previous message
No, this is wrong!
The 8051 does not use a segmented mempry system like this!

I know in reality that an 8051 doesn't use a segment:offset routine, but the reason why I explained it like that is because I was explaining what DPTR is and how it works.
how do you explain the function of a 16 bit register by describing it as two 8 bit regs? That is creating confusion where none exist.

again, I want to make someone that can program in x86 assembler understand hoe easy it is to program in xn x51.
did the OP say anything about an x86?

Some of the guys on the forum here are so into the 8051, they don't even bother with segments:offsets because they treat DPH and DPL as high and low bits of the memory address DPTR.
yes "don't even bother with segments:offsets" because the '51 has NO SUCH CONCEPT.

Erik

List of 36 messages in thread
TopicAuthorDate
MMIO            01/01/70 00:00      
   MMIO            01/01/70 00:00      
      The only way? I know, at least, 5 more            01/01/70 00:00      
         careful now ...            01/01/70 00:00      
            well            01/01/70 00:00      
               true enough!            01/01/70 00:00      
      Answer is incorrectlystated!            01/01/70 00:00      
      8051 offers more connection points            01/01/70 00:00      
         true, but he didn't ask about that            01/01/70 00:00      
            But Lynn said it, and it's wrong            01/01/70 00:00      
               I\'m forced to agree ... it is wrong ... but ...            01/01/70 00:00      
         That\\\'s already been thoroughly established!            01/01/70 00:00      
            Regret on the word "only"            01/01/70 00:00      
               n ow I have to TOTALLY disagree            01/01/70 00:00      
               Lynn, I KNEW Erik would jump you on this one!            01/01/70 00:00      
                  you missed the biggie            01/01/70 00:00      
                     He didn't ask for ancient or modern, just answers            01/01/70 00:00      
                        as I said            01/01/70 00:00      
   What are you trying to connect?            01/01/70 00:00      
   Ambiguity?            01/01/70 00:00      
      oh my            01/01/70 00:00      
         error?            01/01/70 00:00      
            8051 addressing is not segmented            01/01/70 00:00      
         Oh dear!            01/01/70 00:00      
            you missed the POINT            01/01/70 00:00      
               no, YOU did            01/01/70 00:00      
               try not to confuse beginners...            01/01/70 00:00      
               You failed to make that point!            01/01/70 00:00      
         useful? I'd say confusing            01/01/70 00:00      
         Mike, you didn't read the 8086 datasheet either            01/01/70 00:00      
   Hardware conections            01/01/70 00:00      
      Hardware conections...            01/01/70 00:00      
      an example...            01/01/70 00:00      
      trying to 'relanguage'            01/01/70 00:00      
   MMIO meaning            01/01/70 00:00      

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