bit ordering and endianess

Posted by Neeraj on Stack Overflow See other posts from Stack Overflow or by Neeraj
Published on 2010-04-14T07:08:14Z Indexed on 2010/04/14 7:13 UTC
Read the original article Hit count: 186

Filed under:

c

|

bit-manipulation

|

endianness

I am reading a file byte-by-byte.

Say for example i have this byte: 0x41 (0100 0001) represented in hex.

Now, I want the first three bits of this byte, i.e (010).

I can use bitwise logic to extract the first three bits, but my question is will the first three bits be independent of endianess of the machine.(i.e they can't be 001)?

Thanks,

Related posts about bit-manipulation

Find three numbers appeared only once using bit manipulation

as seen on Stack Overflow - Search for 'Stack Overflow'
In a sequence of length n, where n=2k+3, that is there are k unique numbers appeared twice, how to find the three unique numbers that appeared only once using bit manipulation? for example, in sequence 1 1 2 6 3 6 5 7 7 the three unique numbers are 2 3 5. >>> More
Learning C bit manipulation

as seen on Stack Overflow - Search for 'Stack Overflow'
I didn't know any better name for a title of the question. For ex: on one of my previous questions one answered ((a)-(b))&0x80000000) 31 - this is kind of a too advanced for me and i can't really get what it means. I am not looking just for an answer of that, but i need someone to tell me some… >>> More
Bit manipulation, permutate bits

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi. I am trying to make a loop that loops through all different integers where exactly 10 of the last 40 bits are set high, the rest set low. The reason is that I have a map with 40 different values, and I want to sum all different ways ten of these values can be multiplied. (This is just out of… >>> More
bit manipulation in java

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a fragment of bytes in a byte[]. The total size of the array is 4 and I want to convert this into a positive long number. For example if the byte array is having four bytes 101, 110, 10, 1 then i want to get the long number represented by binary sequence 00000000 00000000 00000000 00000000… >>> More
Doing 64 bit manipulation using 32 bit data in Fixed point arithmetic using C.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am stuck with a problem. I am working on a hardware which only does support 32 bit operations. sizeof(int64_t) is 4. Sizeof(int) is 4. and I am porting an application which assumes size of int64_t to be 8 bytes. The problem is it has this macro BIG_MULL(a,b) ( (int64_t)(a) *… >>> More

Developer IT

bit ordering and endianess - Developer IT

bit ordering and endianess

c

bit-manipulation

endianness

Related posts about c

Related posts about bit-manipulation

Find three numbers appeared only once using bit manipulation

Learning C bit manipulation

Bit manipulation, permutate bits

bit manipulation in java

Doing 64 bit manipulation using 32 bit data in Fixed point arithmetic using C.

Categories cloud