
Problem:
I have a sequence of bits of indices 7 6 5 4 3 2 1 0 and I want to swizzle them the following way :
7 6 5 4 3 2 1 0 = 7 6 5 4 3 2 1 0
_____       _____
 ___   ...

int a = 0b1011011011;
int b = 0b1000110110;
int c = 0b0101010101;
int d = (a & b) ^ c; //Wrong
Intended value ofd is 0b1010011110
I need to write d so that when the bit of c is 1, the ...

I am trying to create 32 bit addresses in C by combining multiple unsigned int values I have. These multiple values are important and need to be all stored into 1 32 bit address.
For example: Say I ...

How do we deal with single bits?
We'll now show you what you can use bitwise operators for. Imagine that you're a developer obliged to write an important piece of an operating system. You've been told ...

0C 1C 34 38 34 24 12 1C 24 10 1B 0E 0A 1D 25
C S 2 6 2 I S G R E A T !
Translating the above message into individal 8bit bytes, we get:
00001100 00011100 ...

I'm using Doctrine 2.7.1DEV with Symfony CLI version v4.13.3.
I have recently started working with Symfony. My task is reprogramming a web application. So there is an existing database that needs to ...

Here is my attempt at an immutable byte combiner, I got the idea from trying to copy BitArray with a Span<bool> and figure out it can almost be done inline. Is this a good method to achieve my ...

I am looking for a good hash function with the following characteristics:
The input is any unsigned int number and the output must be {0,...,N1} where N must be an unsigned int parameter of the ...

Suppose I've two bit strings: runs and toggler, where a run is a group of contiguous like bits. Both of these bit strings can have an arbitrary arrangement of 1s and 0s (on and off respectively). For ...

I'm attempting to convert some C++ code that I found online that is used for reordering a bitmap to be used with a specific OLED display for a MIDI controller  Akai Fire. The display uses a strange ...

I have a usecase to encode number within range of 5.5 to +5.5 using a bitmask of 9 bits, and then apply predefined offset on it. After going through online tutorials, I come up with following ...

I'd like to do some bit operation with torch.tensor in cuda, such as <<, >>, or extract each bit which represents a float number, such as 0 01101 01010101012 (3555H) for 0.333 in float16.
what ...

I am working on a piece of logic that will teach me how bitops and bit manipulation works, and I am trying to view a specific bit of a given hex number. For example f0f0 has the following bit value ...

once again I'm struggling with Z3. I'm trying to build a code from a binary I disassembled with IDA:
This function is being called 0x80 times. ecx is initialized with 0x40. [rdi+8] initialized with ...

javascript, 2020:
I've never worked with the sharedArrayBuffer, (or bits) and I have some questions. Basically I want to store a set of bools and a small counter (4bit), on a single Int16Array ...

/*
* isTmax  returns 1 if x is the maximum, two's complement number,
* and 0 otherwise
* Legal ops: ! ~ & ^  +
* Max ops: 10
* Rating: 1
*/
int isTmax (int x)
{
int t = x + ...

Let's say we assume a=16 b=3
First I am trying to find the x to which when I multiply 3 and then subtract is from 16 will get the min difference
163<<0 =>16(3*1)  163<<1 =>16(3*2) ...

when
1<<2 : 4
4<<1<<2 should be 4<<4 which is 64
but it is showing 32.
I am new to bit manipulation, please let me know where I am doing wrong.

For bitshifting large integers. I have seen this answer in StackOverflow:
uint64_t i1, i2, i3, o1, o2, o3; // {o3, o2, o1} = {i3, i2, i1} << 3;
o3 = i3 << 3  i2 >> (32  3);
o2 = ...

Say I have 2 sets of bits. Pretend that they are two sets of permissions
Desired Permission
Actual Permissions
I want to know the desired permissions that are not set in actual permissions.
Is ...

I want to use the bits valued at 2^42^8 in a Typed 16Uint array item to use as a binary counter to 16.
0000111100000000 >15
0000111000000000 >14
0000110100000000 >13
...
0000000000000000 ...

In doing a bitwise &, I thought by specifying the digit it would add that digit in the necessary spot, but in python I get the following:
>>> 4&2
0
>>> 4&1<<1
0
&...

I'm trying to make an asynchronous WebSocket server (my own implementation). I have the following code:
use tokio::net::TcpListener;
#[tokio::main]
async fn main() > Result<(), Box<dyn std:...

I have an application that uses a generated number, eventNumber, on an Event Message, as a message id to produce a Notification Message. eventNumber is guaranteed to be unique and increasing.
So for ...

How can I change only the higher bit of byte in masm32? Assume I have 00101111 byte and want to get 10101111.

Can someone explain the purpose of using bitwise operators(like BIT_OR) in MySQL queries. For example, if have a table such as following:
What is the purpose of aggregate operation like:
SELECT name ...

I have an integer that is 8 bits and I want to distribute these bits into beginnings of 4 integers (4x8 bit) two by two. For example:
bit_8 = 0b_10_11_00_11
bit_32 = b"\x12\x32\x23\54" # > [...

I want to set an N amount of bits in a byte (byte always starts as 0) and store it using a pointer. Imagine:
void SetBits(uint8_t bytesToSet, uint8_t* var) {}
How would I go about implementing this (...

Lets say I have the value 1025 as a byte array and the value 1030 as usize. How would I go about comparing if the byte array is bigger, lesser or equal without deserializing it?
I'm completely stuck, ...

(a&b)^(ab)
how can I simply this, if you can add any reference for learning simplification it will be better

I am currently learning bitwise operations in C.
Given a byte(spaced for readability): 11 01 11 10
Must turn it into: 10 11 01 11
How do I go about doing this?

In my real case I have an array of shape (8,2) and I need to check if two integers are of different parity. For example here I want that the line 0 return False (8 and 2 are even, so same parity) line ...

When you do left shift of a ve number on Leetcode it shows run time error as shown in the following screenshot
leetcode compiler output
Now For the Same code on GeeksForGeeks IDE, it works well as ...

I am having some trouble with swapping 2 integers using bit manipulation. Below is my code and console input/output.
#include <stdio.h>
int main() {
int num1 = 0;
int num2 = 0;
int ...

I have a struct in c like this
struct RegisterStruct
{
uint64_t b_0 : 64;
uint64_t b_1 : 64;
uint64_t c_0 : 64;
uint64_t c_1 : 64;
uint64_t c_2 : 64;
uint64_t d_0 : 64;
...

I'm new in Python and I would like to know how to change the least significant bit in Python.
I would like to do something like this:
mybytes = bytes(16) ## Creating the byte object filled with ...

Being a highlevel programmer myself, I struggle a lot with bitwise operations. I hope what I'm trying to achieve is doable?
Let's say I have one unsigned 8bits integer  it can be any value. Let's ...

How can I write following C expression using leftshift bitwise operator (<<) and plus sign (+)?
y = x * 6;

I have a legacy C++ binary operation code like this:
constexpr static uint64_t val2bin(double val) {
uint64_t bin = (val > 0.) ? uint64_t(val/0.01)+1 : 0;
return (bin > 510) ? 511 : bin;...

Say I have an unsigned char array of ASCII characters with the binary values:
00001100 00011100 00110100 00111000 00110100 00100100 00010010 00011100 00100100 00010000 00011011 00001110 ...

I need to do bitwise OR of two binary strings.
For example, if the binary strings are "110001" and "101101", then I need the result as "111101".
How can I do this in Swift ?

I found this question in geeksforgeeks related to dynamic programming with bitmasking
I am trying for weeks but not able to understand how the answer is formulated. Please provide any links, that may ...

I want to create a table column that stores a 500 byte bitmap (500 bytes * 8 bits per byte = 4000 bits) and do operations to mutate bits (set to 1 or 0) at certain indexes in the bitmap.
However, ...

I am allocating memory in the Jetson TX2. It has 8GB of RAM.
I need to specify the maximun GPU memory size available for TensorRT.
max_workspace_size_bytes = (has to be an integer)
I have seen ...

This is my first question, so I hope to do this right.
I have a problem where I have to map a key which can be in the range (0, 1, 2) to select a value from the same range (0, 1, 2). I have to repeat ...

I am unable to figure out the reason for this behavior. I want to left shift by 8 bits the byte value OxAB. Then I want to convert that to a long.
byte oneByte = (byte) 0xAB;
long converted = (...

Currently I'm working on conversion Verilog module to VHDL and I've encountered a line which I am not sure how to convert to VHDL.
I am talking about the last line of the code that is shown below. I ...

How does this work?
The idea is to make abs(x) use bitwise operators for integers (assuming 32 bit words):
y = x >> 31
(x + y) ^ y // This gives abs(x) (is ^ XOR)?

In OpenCV,
is there any way to bitwise operation more than two image in one line code?
for example,
result = cv.bitwise_and(source1, source2, source3, source4)
something like that.
not like
mask1 ...

I find it quite difficult to think about Python (and Python3)'s infinite precision negative numbers and bitwise operations. It is not 32bit or 64bit. The 1s at the left can be thought of as "...