* How to figure out the byteorder only with one byte number? @ 2012-02-18 14:33 Tao Jiang 2012-02-18 15:59 ` Peter Senna Tschudin 0 siblings, 1 reply; 12+ messages in thread From: Tao Jiang @ 2012-02-18 14:33 UTC (permalink / raw) To: kernelnewbies Hi: As far as I know, we can use an integer 0x12345678 with four bytes and bytes[4] array to figure out a machine's byteorder Is there a method use only one byte 0x01 and some shifts do the same work? Thank you. --------------- jiangtao ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-18 14:33 How to figure out the byteorder only with one byte number? Tao Jiang @ 2012-02-18 15:59 ` Peter Senna Tschudin 2012-02-19 12:08 ` Tao Jiang 0 siblings, 1 reply; 12+ messages in thread From: Peter Senna Tschudin @ 2012-02-18 15:59 UTC (permalink / raw) To: kernelnewbies I found: http://stackoverflow.com/questions/2100331/c-macro-definition-to-determine-big-endian-or-little-endian-machine On Sat, Feb 18, 2012 at 12:33 PM, Tao Jiang <jiangtao.jit@gmail.com> wrote: > Hi: > > As far as I know, we can use an integer 0x12345678 with four bytes > and bytes[4] array to figure out a machine's byteorder > > Is there a method use only one byte 0x01 > and some shifts do the same work? > > Thank you. > > --------------- > jiangtao > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -- Peter Senna Tschudin peter.senna at gmail.com gpg id: 48274C36 ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-18 15:59 ` Peter Senna Tschudin @ 2012-02-19 12:08 ` Tao Jiang 2012-02-19 14:24 ` Bernd Petrovitsch 0 siblings, 1 reply; 12+ messages in thread From: Tao Jiang @ 2012-02-19 12:08 UTC (permalink / raw) To: kernelnewbies Peter: Thank you very much! I've read the url. But it's not what i mean to ask for. Those methods all use an int or a short number and converting. What I really want to ask for is: unsigned char byte = 0b00000100; do some shifts like byte << 1 then find out the machine's byteorder Is there some difference of the storge between BE and LE machine inside a byte? Thank you. 2012/2/18 Peter Senna Tschudin <peter.senna@gmail.com>: > I found: > > http://stackoverflow.com/questions/2100331/c-macro-definition-to-determine-big-endian-or-little-endian-machine > > On Sat, Feb 18, 2012 at 12:33 PM, Tao Jiang <jiangtao.jit@gmail.com> wrote: >> Hi: >> >> As far as I know, we can use an integer 0x12345678 with four bytes >> and bytes[4] array to figure out a machine's byteorder >> >> Is there a method use only one byte 0x01 >> and some shifts do the same work? >> >> Thank you. >> >> --------------- >> jiangtao >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies at kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > -- > Peter Senna Tschudin > peter.senna at gmail.com > gpg id: 48274C36 ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-19 12:08 ` Tao Jiang @ 2012-02-19 14:24 ` Bernd Petrovitsch 2012-02-19 17:19 ` Graeme Russ 0 siblings, 1 reply; 12+ messages in thread From: Bernd Petrovitsch @ 2012-02-19 14:24 UTC (permalink / raw) To: kernelnewbies 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. Bernd -- Bernd Petrovitsch Email : bernd at petrovitsch.priv.at LUGA : http://www.luga.at ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-19 14:24 ` Bernd Petrovitsch @ 2012-02-19 17:19 ` Graeme Russ 2012-02-20 11:25 ` Tao Jiang 0 siblings, 1 reply; 12+ messages in thread From: Graeme Russ @ 2012-02-19 17:19 UTC (permalink / raw) To: kernelnewbies 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 ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-19 17:19 ` Graeme Russ @ 2012-02-20 11:25 ` Tao Jiang 2012-02-20 13:53 ` Subramaniam Appadodharana 0 siblings, 1 reply; 12+ messages in thread From: Tao Jiang @ 2012-02-20 11:25 UTC (permalink / raw) To: kernelnewbies 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? Thank you. 2012/2/20 Graeme Russ <graeme.russ@gmail.com>: > 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 > ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-20 11:25 ` Tao Jiang @ 2012-02-20 13:53 ` Subramaniam Appadodharana 2012-02-20 22:32 ` THAI NGUYEN 0 siblings, 1 reply; 12+ messages in thread From: Subramaniam Appadodharana @ 2012-02-20 13:53 UTC (permalink / raw) To: kernelnewbies Hi Tao, On Mon, Feb 20, 2012 at 5:25 AM, Tao Jiang <jiangtao.jit@gmail.com> 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@gmail.com>: >> 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 at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-20 13:53 ` Subramaniam Appadodharana @ 2012-02-20 22:32 ` THAI NGUYEN 2012-02-21 1:22 ` Sri Ram Vemulpali 0 siblings, 1 reply; 12+ messages in thread From: THAI NGUYEN @ 2012-02-20 22:32 UTC (permalink / raw) To: kernelnewbies 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@gmail.com> To: Tao Jiang <jiangtao.jit@gmail.com> Cc: Graeme Russ <graeme.russ@gmail.com>; Bernd Petrovitsch <bernd@petrovitsch.priv.at>; Peter Senna Tschudin <peter.senna@gmail.com>; kernelnewbies at kernelnewbies.org 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@gmail.com> 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@gmail.com>: >> 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 at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies at kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120220/ca6f9c53/attachment.html ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-20 22:32 ` THAI NGUYEN @ 2012-02-21 1:22 ` Sri Ram Vemulpali 2012-02-21 12:30 ` Tao Jiang 0 siblings, 1 reply; 12+ messages in thread From: Sri Ram Vemulpali @ 2012-02-21 1:22 UTC (permalink / raw) To: kernelnewbies 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@rogers.com> 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@gmail.com> > To: Tao Jiang <jiangtao.jit@gmail.com> > Cc: Graeme Russ <graeme.russ@gmail.com>; Bernd Petrovitsch > <bernd@petrovitsch.priv.at>; Peter Senna Tschudin <peter.senna@gmail.com>; > kernelnewbies at kernelnewbies.org > 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@gmail.com> 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@gmail.com>: >>> 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 at kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies at kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > -- Regards, Sri. ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-21 1:22 ` Sri Ram Vemulpali @ 2012-02-21 12:30 ` Tao Jiang 2012-02-21 12:48 ` Bernd Petrovitsch 0 siblings, 1 reply; 12+ messages in thread From: Tao Jiang @ 2012-02-21 12:30 UTC (permalink / raw) To: kernelnewbies 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@gmail.com>: > 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@rogers.com> 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@gmail.com> >> To: Tao Jiang <jiangtao.jit@gmail.com> >> Cc: Graeme Russ <graeme.russ@gmail.com>; Bernd Petrovitsch >> <bernd@petrovitsch.priv.at>; Peter Senna Tschudin <peter.senna@gmail.com>; >> kernelnewbies at kernelnewbies.org >> 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@gmail.com> 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@gmail.com>: >>>> 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 at kernelnewbies.org >>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies at kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies at kernelnewbies.org >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> > > > > -- > Regards, > Sri. ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-21 12:30 ` Tao Jiang @ 2012-02-21 12:48 ` Bernd Petrovitsch 2012-02-22 11:27 ` Tao Jiang 0 siblings, 1 reply; 12+ messages in thread From: Bernd Petrovitsch @ 2012-02-21 12:48 UTC (permalink / raw) To: kernelnewbies On Die, 2012-02-21 at 20:30 +0800, Tao Jiang wrote: [...] > Now I know in the most modern machine there is no difference between BE and LE > at so called 'bit order' level. > Right? One main difference between *byte* order and *bit* order is: What are the means to address individual *bits*? a) Bit shift and masking as in "1 << bit-number": This has a mathematical background and - implicitly - the least-significant bit has - thus - the number 0. I can't even think of an insane reason (let alone a sane one) to break the "shift left is for unsigned numbers equivalent to doubling" property - apart from the fact that it is defined in that way by C - and all other languages I came across. And the same holds for all CPUs/assembler instruction sets .... b) use a bit-field as in "unsigned char b0:1, b1:1, b2:1, b3:1, b4:1, b5:1, b6:1, b7:1;": It is not defined by any C-standard and is - thus - up to the compiler, if b0 == (1 << 0) or b0 == (1 << 7) or anything else. c) bit-test/st/clr assembler instructions in the architecture: Go read *if* your CPU has such stuff and how it relates to the "bit-shift and mask" method. I would be greatly surprised if it is different (on i386, it is equal since ages BTW) mainly because it makes absolutely no sense. d) There is hardware with bit-addressable memory out there. Go read the manual and the same as c) I doubt that it is different even for really old machines .... Bernd -- Bernd Petrovitsch Email : bernd@petrovitsch.priv.at LUGA : http://www.luga.at ^ permalink raw reply [flat|nested] 12+ messages in thread
* How to figure out the byteorder only with one byte number? 2012-02-21 12:48 ` Bernd Petrovitsch @ 2012-02-22 11:27 ` Tao Jiang 0 siblings, 0 replies; 12+ messages in thread From: Tao Jiang @ 2012-02-22 11:27 UTC (permalink / raw) To: kernelnewbies Hi: Thank you all very much. 2012/2/21 Bernd Petrovitsch <bernd@petrovitsch.priv.at>: > On Die, 2012-02-21 at 20:30 +0800, Tao Jiang wrote: > [...] >> Now I know in the most modern machine there is no difference between BE and LE >> at so called 'bit order' level. >> Right? > > One main difference between *byte* order and *bit* order is: > > What are the means to address individual *bits*? > a) Bit shift and masking as in "1 << bit-number": > ? This has a mathematical background and - implicitly - the > ? least-significant bit has - thus - the number 0. > ? I can't even think of an insane reason (let alone a sane one) to > ? break the "shift left is for unsigned numbers equivalent to > ? doubling" property - apart from the fact that it is defined in that > ? way by C - and all other languages I came across. And the same holds > ? for all CPUs/assembler instruction sets .... > b) use a bit-field as in "unsigned char b0:1, b1:1, b2:1, b3:1, b4:1, > ? b5:1, b6:1, b7:1;": > ? It is not defined by any C-standard and is - thus - up to the > ? compiler, if b0 == (1 << 0) or b0 == (1 << 7) or anything else. > c) bit-test/st/clr assembler instructions in the architecture: Go read > ? *if* your CPU has such stuff and how it relates to the "bit-shift and > ? mask" method. > ? I would be greatly surprised if it is different (on i386, it is equal > ? since ages BTW) mainly because it makes absolutely no sense. > d) There is hardware with bit-addressable memory out there. Go read the > ? manual and the same as c) > I doubt that it is different even for really old machines .... > > ? ? ? ?Bernd > -- > Bernd Petrovitsch ? ? ? ? ? ? ? ? ?Email : bernd at petrovitsch.priv.at > ? ? ? ? ? ? ? ? ? ? LUGA : http://www.luga.at > ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2012-02-22 11:27 UTC | newest] Thread overview: 12+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-02-18 14:33 How to figure out the byteorder only with one byte number? Tao Jiang 2012-02-18 15:59 ` Peter Senna Tschudin 2012-02-19 12:08 ` Tao Jiang 2012-02-19 14:24 ` Bernd Petrovitsch 2012-02-19 17:19 ` Graeme Russ 2012-02-20 11:25 ` Tao Jiang 2012-02-20 13:53 ` Subramaniam Appadodharana 2012-02-20 22:32 ` THAI NGUYEN 2012-02-21 1:22 ` Sri Ram Vemulpali 2012-02-21 12:30 ` Tao Jiang 2012-02-21 12:48 ` Bernd Petrovitsch 2012-02-22 11:27 ` Tao Jiang
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