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???
04/01/05 14:52
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Msg Score: +1
 +1 Good Question		 #90813 - Reversing Algorithm
I was wondering if anyone knew an efficient and space saving algorithm in 8051 assembler to reverse the direction of a byte. That is, to make the msb become the lsb and vice versa, the second msb become the second lsb and vice versa, etc.

So, 11100101 -> 10100111

I've been trying to think of a solution to this all night but haven't come up with anything compact. Anyone?

List of 36 messages in thread
TopicAuthorDate
Reversing Algorithm            01/01/70 00:00      
   remembered this one            01/01/70 00:00      
      the fastest code in the west            01/01/70 00:00      
         Am I wrong            01/01/70 00:00      
            not as simple, but less table            01/01/70 00:00      
               lookup table            01/01/70 00:00      
                  nope            01/01/70 00:00      
                     swap, the nibble mirror            01/01/70 00:00      
                        nibble-wise?            01/01/70 00:00      
                     nope nope            01/01/70 00:00      
                        noipe, nope, nope            01/01/70 00:00      
                            noipe, nope, nope, nope            01/01/70 00:00      
                              Ok, Ok. Ok, OK            01/01/70 00:00      
                                 max.255 entries - or the tricks :-)            01/01/70 00:00      
                                    the value of verification            01/01/70 00:00      
                  Mirrored tracks            01/01/70 00:00      
                     Why ?            01/01/70 00:00      
                        Working fine            01/01/70 00:00      
                           why you post wrong code ?            01/01/70 00:00      
                              Yes. Code has bug - Peter            01/01/70 00:00      
                                 efficiency            01/01/70 00:00      
                                    Obvious Vs Smart code            01/01/70 00:00      
                                       sorry            01/01/70 00:00      
                                          No offence - only learning            01/01/70 00:00      
   One byte-reversing solution            01/01/70 00:00      
   Byte Bit Reversal            01/01/70 00:00      
      Re: Byte Bit Reversal            01/01/70 00:00      
   Bit Addressing solution!            01/01/70 00:00      
      Hardware?            01/01/70 00:00      
      2 byte of ram or 2 port?            01/01/70 00:00      
   Three ways:            01/01/70 00:00      
      Three (smart) ways            01/01/70 00:00      
      Thanks, Peter, but...            01/01/70 00:00      
         its faster            01/01/70 00:00      
   Topic has been discussed before            01/01/70 00:00      
   You could try a CPLD            01/01/70 00:00      

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