extract « bit « C Data Type Q&A

1. How do I extract a bit in a more optimal way?    stackoverflow.com

I had a interview today where they asked me to write two "C" functions, one to to extract a single bit and other to extract a range of bits from a ...

2. Extracting bits    stackoverflow.com

In C, I have a 32bit word representing an address (and I have it stored in a unsigned long, hope thats ok). Now from what I gather, part of an address ...

3. Extracting the value represented by a particular set of bits in a number    stackoverflow.com

How to extract the value represented by a particular set of bits in a given number i.e. if bits 11,12 & 13 are 1,1,0 then the value should be 6. What is ...

4. Bit extraction and Steganography    stackoverflow.com

I am playing around with steganography. I am trying to pull a text file from a image. I am able to read the file, get the bits, but I have an ...

5. Extracting bits using bit manipulation    stackoverflow.com

I have a 32-bit unsigned int and I need to extract bits at given positions and make a new number out of those bits. For example, if I have a 0xFFFFFFFF ...

6. How do i extract specific 'n' bits of a 32bit unsigned integer in C?    stackoverflow.com

Could anyone tell me as to how to extract 'n' specific bits from a 32 bit unsigned integer in C. For e.g say i want the first 17 bits ...

7. Extracting bits    cboard.cprogramming.com

8. How can I extract the most significant 4 bits?    cboard.cprogramming.com

Hi guys, I'm currenty writing a program to simulate page replacement, and I'm given a series of virtual addresses in the form of: 0x6873 0x6cff 0x68ec 0xb148 I'm currently going to check to see if the v-address is in the TLB (translation look aside buffer) and if its not in there I'm going to check to see if its in the ...

9. Extracting certain bits from sequence of bits    cboard.cprogramming.com

10. extract first 12 bits of unsigned short    forums.devshed.com

Hi all, I have some images for which the pixel data was stored as 16 bit unsigned shorts. However, only the first 12 bits have actual data in them, the last 4 can be zero or garbage. How can I extract the first 12 meaningful bits to get what the actual pixel value was? Thanks.

11. Extract value of most significant bit    forums.devshed.com

What's the best way to extract the value of the most significant bit (sign bit in 2's complement) integer? I saw a forloop where the person looped to the 32nd bit and returned the value but this takes O(n) time. Anything faster? What if you were to shift the bits 31 places to the right using the bitwise >>? I'm asking ...

12. Help with my bit extraction code    forums.devshed.com

Hello, I recently wrote an algorithm that will extract (or atleast try to) X number of bits from a buffer. But, for some reason it doesn't seem to work all the time. For example, it can extract the bits the first time I run my algorithm, but not after that...I figure it's a problem with the way I am storing the ...