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Topic: Bitwise


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In the News (Mon 28 May 12)

  
  MSNP8:Bitwise AND - MSNPiki
Bitwise NOT is useful in finding the one's complement of a binary numeral, and may be an intermediate step in finding the two's complement of the same numeral.
The bitwise OR may be used in situations where a set of bits are used as flags; the bits in a single binary numeral may each represent a distinct Boolean variable.
The bitwise XOR may also be used to toggle flags in a set of bits.
msnpiki.msnfanatic.com /index.php?title=MSNP8:Bitwise_AND&redirect=no   (1546 words)

  
 Tutorial: Bitwise Operations
Bitwise operations modify the pattern of bits in an object.
To understand bitwise operations, it is necessar y to have some background in binary numbers.
In C++, which is the language these tutorials focus on, the bitwise and is a single "&." When two bits are compared using the and operator, a one is returned if both are one, and a zero is returned in all other cases.
library.thinkquest.org /10300/enhanced_pages/tutorial/bitwise.html   (558 words)

  
 Bitwise Operators
Bitwise operators are used for applying boolean operations at the individual bit level of a value.
Bitwise operators are also commonly used in hashing, compression, and encryption algorithms, among others.
Each byte in the result is the bitwise combination of the corresponding bytes in the operands, where bytes are treated as unsigned values.
www.superbase.com /langref/bitwiseoperators.html   (777 words)

  
 The Bitwise Operators
Bitwise operators are used to change individual bits in an operand.
The first step to using bitwise operators to indicate more than one flag in a single variable is to define the meaning of the bits that you'd like to use.
The bitwise shift operators are used to move all of the bits in the operand left or right a given number of times.
www.cs.cf.ac.uk /Dave/PERL/node36.html   (697 words)

  
 Core JavaScript 1.5 Guide:Operators:Bitwise Operators - MDC
Bitwise operators treat their operands as a set of 32 bits (zeros and ones), rather than as decimal, hexadecimal, or octal numbers.
Bitwise operators perform their operations on such binary representations, but they return standard JavaScript numerical values.
The bitwise shift operators take two operands: the first is a quantity to be shifted, and the second specifies the number of bit positions by which the first operand is to be shifted.
developer.mozilla.org /en/docs/Core_JavaScript_1.5_Guide:Operators:Bitwise_Operators   (540 words)

  
 Cprogramming.com - Tutorials - Bitwise Operators and Bit Manipulations in C and C++
Conveniently, if we perform a bitwise OR with only a single bit set to 1 (the rest are 0), then we won't affect the rest of the number because anything ORed with zero remains the same (1 OR 0 is 1, and 0 OR 0 is 0).
For bitwise OR, to be certain that it would be equivalent, you'd need to make sure that the underlying representation of 0 is all zeros to use it interchangeably.
Bitwise exclusive-or, with the operator of a carrot, ^, performs the exclusive-or operation on each pair of bits.
www.cprogramming.com /tutorial/bitwise.html   (2897 words)

  
 Bitwise AND, OR, XOR and NOT Operators and Bit Masks
Save bitwise operations for systems programming or where memory savings may be desired such as in a JavaCards.
The most common application of the bitwise operators is to set, clear, test and toggle individual bit flags using bit masks.
BooleanPermissions.java is a replica of the bitwise class above, except that it uses booleans as flags instead of bitmasks as flags.
www.vipan.com /htdocs/bitwisehelp.html   (2086 words)

  
 Bitwise Operators in C
Bitwise operators allow you to read and manipulate bits in variables of certain types.
Bitwise operators fall into two categories: binary bitwise operators and unary bitwise operators.
Bitwise operators, like arithmetic operators, do not change the value of the arguments.
www.cs.umd.edu /class/spring2003/cmsc311/Notes/BitOp/bitwise.html   (1266 words)

  
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 Adobe - Developer Center : Using Bitwise Operators to Manipulate Bits and Colors
Note: This article is part of a series of articles on new Flash 8 features written by the staff of gskinner.com, a Flash development and consulting company working with leading new media agencies and progressive corporate clients to create cutting-edge applications, games and, multimedia pieces.
This is partly because of the highly abstracted nature of Flash (we're not exactly writing assembly code here), partly due to the slow performance of bitwise operators in Flash relative to other languages, and partly due to the less formal programming educations that many of us have.
Bitwise operators offer a fast, relatively simple way to manipulate color data—once you figure out how to use them.
www.adobe.com /devnet/flash/articles/bitwise_operators.html   (399 words)

  
 GameDev.net - Bitwise Operations in C   (Site not responding. Last check: 2007-10-10)
A bitwise NOT simply inverts all the bits in its operand, meaning that all 0s are changed to 1s, and vice versa.
You could accomplish that with the bitwise AND operator and a number of shifts, but it wouldn't be the most efficient way.
Bitwise operations are extremely fast for the processor to handle, so this is nice and quick, as well as a way to rid yourself of a temporary variable, which can be very nice.
www.gamedev.net /reference/articles/article1563.asp   (5273 words)

  
 Markets
BitWise is very experienced in this sector, working from the client access terminal (many different specific and general purpose devices) through communications networks to server-based, payment and management applications.
BitWise has been able to apply its extensive embedded system experience, quality standards and project management skills to the demanding field of software development for medical instruments and systems.
BitWise has undertaken many projects where the deliverable is a security implementation that provides a fully secured operational solution to clients.
www.bitwise.co.uk /Markets.htm   (433 words)

  
 bitwise - a Whatis.com definition
Bitwise data manipulation is working with data at the bit level, instead of working with bytes or larger units of data, as is more common.
A bitwise operator (a character that represents an action, as for example x is an arithmetic operator that represents multiplication) manipulates single bits.
A bitwise operator works with the binary representation of a number rather than that number's value.
whatis.techtarget.com /gDefinition/0,294236,sid8_gci927551,00.html   (379 words)

  
 Bitwise Operations with Enumerations
Bitwise operations are a way to use the individual bits of an integer to represent 32 individual boolean flags.
Bitwise operations involve treating the individual bits of an integer as an array of 32 boolean flags.
By combining this concept with enumerations and bitwise OR's you can enable and disable particular bits in a much more readable fashion and by wrapping an integer in a custom class that provides an indexer you can simplify access to the individual bits and access them as a boolean value.
dotnetslackers.com /articles/net/Bitwise_Operations_with_Enumerations.aspx   (994 words)

  
 MSN Messenger Protocol - General - bitwise AND
Bitwise AND is a basic mathematical function like addition or subtraction.
Understanding how it works is very useful, but its use in the MSN Messenger protocol is so limited that you can get away without it.
Bitwise AND is one of the simplest operations a computer can do.
www.hypothetic.org /docs/msn/general/and.php   (368 words)

  
 Adobe - Developer Center : Using Bitwise Operators to Manipulate Bits and Colors
Bitwise operators are utilized in a similar fashion to any other mathematical operator.
This is because the bitwise NOT flips each bit in the binary representation of 9 separately, so 1001 (9 in binary) becomes 0110, which is 6 in decimal.
Using bitwise operators, you can now separate a single RGB or ARGB color into its component channels, manipulate the color values for each channel, and then combine them back into a single color value.
www.adobe.com /devnet/flash/articles/bitwise_operators_print.html   (2727 words)

  
 Bitwise Operators - Dev Shed   (Site not responding. Last check: 2007-10-10)
Bitwise Operators C programming forum discussing all C derivatives, including C#, C++, Object-C, and even plain old vanilla C. These languages are low level languages, and used on projects such as device drivers, compilers, and even whole computer operating systems.
A more useful use for the AND bitwise operator and would be to check if a particular bit (or bits) in a byte is set or not.
Now let's say you want to check if a user from the group has permission to execute this file or not, you need to check if the 4th bit from the right is set or not (irrespective of the values of the other bits).
forums.devshed.com /c-programming-42/bitwise-operators-39250.html   (1073 words)

  
 Using Bitwise Operators
These operators are described as Bitwise logic, because they obtain results based on the logical relationships of individual bits.
Bitwise logic is also known as Boolean logic or Boolean math.
When you use byte or word sized data as inputs for Bitwise operators, the result can be as long as your longest input.
picbasic.com /resources/articles/boolean.htm   (445 words)

  
 Neverwinter Nights: Bitwise operators
Bitwise operators perform operations, bit by bit, on the number's binary representation.
The bitwise AND, the and operator, returns a 1 if both are a 1, otherwise a 0.
Bitwise XOR - the ^ operator, returns a 1 when one of the numbers, but not both, have a 1.
nwn.bioware.com /forums/viewtopic.html?topic=485530&forum=47   (1624 words)

  
 Bitwise Magazine :: Allen Bauer Interview
Bitwise contacted the group’s Chief Scientist, Allen Bauer, to ask a few questions about past, present and future developments related to Borland programming products.
bitwise: One of the features which characterizes Delphi and has since been adopted by.NET is the use of delegates.
bitwise: Various non-mainstream languages and methodologies are generating quite a bit of interest at the moment (I’m thinking of languages such as D, Ruby and the various ‘aspect oriented’ language dialects).
www.bitwisemag.com /copy/programming/borland/allen_bauer_interview.html   (3325 words)

  
 moock.org>> asdg>> technotes>> using bitwise operators in actionscript
Technically, the bitwise operators are mathematical operators, but they're typically used in a logical, not mathematical, context.
Bitwise programming nearly always involves situations in which a series of properties can be turned on or off.
Bitwise AND operations are most easily pictured by arranging the binary equivalents of the decimal operands vertically and lining up their bit columns.
www.moock.org /asdg/technotes/bitwise   (3018 words)

  
 BitWise India IT Services | Finance | Insurance | Media & Publication | Manufacturing | Health
BitWise is committed to quality — from recognizing it in our employees to providing it to our customers.
BitWise delivers effective IT solutions globally through its state of the art offshore development center in India.
From the state-of-the-art offshore development facility in India, to company offices in USA and Australia, BitWise makes sure both, talent and effort is lauded.
www.bitwiseindia.com   (208 words)

  
 Symposium: Bitwise Operations   (Site not responding. Last check: 2007-10-10)
One of the primary uses for bitwise operators is to implement "flags".
Using the bitwise and with the mask, all flags that are not part of the mask get completely removed.
Bitwise operations can allow some cool things, but make sure you understand their limitations.
www.divnull.com /lward/personal/writing/bitwise.html   (1671 words)

  
 Employment Opportunities at Bitwise Solutions, Inc.
As a potential applicant, you are curious about Bitwise Solutions, Inc. and what we do.
Centered between Dallas and Fort Worth, Bitwise Solutions is located in Texas' top centers for computer technology.
Bitwise Solutions offers competitive benefit programs to attract and maintain our employees.
www.bitwise.com /job.htm   (256 words)

  
 Becoming Bit Wise
Be careful not to confuse bitwise operators (and and ) with the logical operators (andand and ).
Bitwise shifts have a lower precedence that arithmetic operators (var_name << 4+10 would be evaluated as var_name<<(4+10), not (var_name << 4) +10).
Bitwise arithmetic is generally regarded as being much faster than using the traditional C arithmetic operators, and programmers that are often resource greedy (ie- games programmers) are oftem huge proponents of Bitwise arithmetic.
www.gmonline.demon.co.uk /cscene/topics/misc/cs9-02.xml.html   (2791 words)

  
 Range analysis with bitwise operations
Existing solutions for bitwise operations are approximate, slow, or do not work for negative variables.
This invention allows the range to be modified due to the effect of bitwise operations, giving tight upper and lower bounds on the result.
The four main operations to consider are bitwise AND, bitwise OR, bitwise NOT and bitwise XOR.
www.priorartdatabase.com /IPCOM/000012367   (514 words)

  
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BitWise RT is a provider of end-to-end embedded software solutions, working closely with customers to establish systems and software requirements and driving the development process to delivery through the application of current best practice project management methodologies.
BitWise RT also specializes in providing both pre-packaged and tailored training covering project management, software and safety critical processes and technical skills.
BitWise RT can further provide consultancy and advice in a range management and technical disciplines according to your organization’s specific needs.
www.bitwisert.com   (139 words)

  
 BitWise Global | Committed & Professional Team   (Site not responding. Last check: 2007-10-10)
Each Director brings to BitWise a track record of enterprise management, global experience in IT or Management and a sense of pride in what they offer their clients as a medium sized quality oriented global company.
Salil is the President of BitWise and an alumni of the department of Computer Science, University of Pune where he studied for his Master's in computer applications.
Sucheta is founder director of BitWise Australia and is in-charge of the company's operations in Australia and New Zealand.
www.bitwiseglobal.com /globalcorpteam.html   (814 words)

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