Hi: I think I'm clear now. What's I originally wanted to ask for is whether 'bit order' equals to 'byte order' And is there a method to find out the 'bit order' then find out the 'byte order' ? Now I know in the most modern machine there is no difference between BE and LE at so called 'bit order' level. Right? Thank you all. 2012/2/21 Sri Ram Vemulpali <sri.ram.gmu06@xxxxxxxxx>: > Guys, > > I was late to the party. But this whole discussion throughs me off. > When you say byte order, it applied when the width of data is more > than a byte, lets say our width is 4 bytes, a typical word length. > > Now how is that there will be byte order on a byte width data. Are you > talking about nibble order. > > When you talk byte order -- either little endian or big endian, we are > talking how is our data should be interpreted. Depending on order we > start reading data from left or right a byte at a time. > > So, I am confused on your discussions. Please clarify. > > Thanks, > Sri. > > On Mon, Feb 20, 2012 at 5:32 PM, THAI NGUYEN <thai-n@xxxxxxxxxx> wrote: >> >> Just as an FYI, way back in the early '90s, Texas Instruments came out with >> a graphics processor (I believe the TMS340x0 praphics processor) that >> actually did do the little-ending and big-endian down to the bit level. >> >> >> ________________________________ >> From: Subramaniam Appadodharana <c.a.subramaniam@xxxxxxxxx> >> To: Tao Jiang <jiangtao.jit@xxxxxxxxx> >> Cc: Graeme Russ <graeme.russ@xxxxxxxxx>; Bernd Petrovitsch >> <bernd@xxxxxxxxxxxxxxxxxxx>; Peter Senna Tschudin <peter.senna@xxxxxxxxx>; >> kernelnewbies@xxxxxxxxxxxxxxxxx >> Sent: Monday, February 20, 2012 8:53:10 AM >> Subject: Re: How to figure out the byteorder only with one byte number? >> >> Hi Tao, >> >> >> On Mon, Feb 20, 2012 at 5:25 AM, Tao Jiang <jiangtao.jit@xxxxxxxxx> wrote: >>> Hi: >>> >>> Thank you all. >>> >>> Take a byte number 0b00000001 for example >>> ^ ^ >>> high bit low bit >>> >>> I used to think in a LE machine it will be stored as 0b10000000 low bit >>> first >>> >>> ^ ^ >>> >>> low bit high bit >>> >>> and in a BE machine will be 0b00000001 high bit first >>> ^ ^ >>> high bit low bit >>> >>> not only the byteorder is different, but inside a byte is also different. >>> >>> But actually they are the same, right? >> yes they are same. In fact it is termed as 'byte' order not 'bit' >> order. Hope this helps. >>> Thank you. >>> >>> >>> >>> 2012/2/20 Graeme Russ <graeme.russ@xxxxxxxxx>: >>>> On 02/20/2012 01:24 AM, Bernd Petrovitsch wrote: >>>>> On Sun, 2012-02-19 at 20:08 +0800, Tao Jiang wrote: >>>>> [...] >>>>>> Is there some difference of the storge between BE and LE machine inside >>>>>> a byte? >>>>> >>>>> No. At least TTBOMK there exists no such hardware. >>>> >>>> Using SHL/SHR would tell you - SHL normally results in a multiply by 2, >>>> SHR >>>> a divide by 2. If the byte was little endian, the results would be >>>> visa-versa >>>> >>>> But I agree, I doubt there is any such hardware >>>> >>>> Regards, >>>> >>>> Graeme >>>> >>> >>> _______________________________________________ >>> Kernelnewbies mailing list >>> Kernelnewbies@xxxxxxxxxxxxxxxxx >>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> > > > > -- > Regards, > Sri. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
