Tutorial by Examples: b

Given that the 8086/8088 was used in the IBM PC, and the Operating System on that was most often from Microsoft, Microsoft's assembler MASM was the de facto standard for many years. It followed Intel's syntax closely, but permitted some convenient but "loose" syntax that (in hindsight) onl...

Intel wrote the specification of the 8086 assembly language, a derivative of the earlier 8080, 8008 and 4004 processors. As such, the assembler they wrote followed their own syntax precisely. However, this assembler wasn't used very widely. Intel defined their opcodes to have either zero, one or tw...

Although the 8086 was most used in IBM PCs along with Microsoft, there were a number of other computers and Operating Systems that used it too: most notably Unix. That was a product of AT&T, and it already had Unix running on a number of other architectures. Those architectures used more convent...

Borland started out with a Pascal compiler that they called "Turbo Pascal". This was followed by compilers for other languages: C/C++, Prolog and Fortran. They also produced an assembler called "Turbo Assembler", which, following Microsoft's naming convention, they called "T...

When the GNU project needed an assembler for the x86 family, they went with the AT&T version (and its syntax) that was associated with Unix rather than the Intel/Microsoft version.

NASM is by far the most ported assembler for the x86 architecture - it's available for practically every Operating System based on the x86 (even being included with MacOS), and is available as a cross-platform assembler on other platforms. This assembler uses Intel syntax, but it is different from ...

YASM is a complete rewrite of NASM, but is compatible with both Intel and AT&T syntaxes.

Background pages are implicit pages which contain background scripts. A background script is a single long-running script to manage some task or state. It exists for the lifetime of your extension, and only one instance of it at a time is active. You can declare it like this in your manifest.json: ...

Loop control statements are used to change the flow of execution from its normal sequence. When execution leaves a scope, all automatic objects that were created in that scope are destroyed. The break and continue are loop control statements. The break statement terminates a loop without any furthe...

An extensible derived type may be abstract type, abstract :: base_type end type Such a derived type may never be instantiated, such as by type(base_type) t1 allocate(type(base_type) :: t2) but a polymorphic object may have this as its declared type class(base_type), allocatable :: t1 o...

ansible-playbook -i path/to/static-inventory-file -l myhost myplaybook.yml

ansible-playbook -i path/to/dynamic-inventory-script.py -l myhost myplaybook.yml See dynamic inventory for more details.

var a:Number=0.123456789; trace(a); // 0.123456789 trace(a.toPrecision(4)); // 0.1235 trace(a.toFixed(4)); // 0.1235 trace(a.toExponential(4)); // 1.2345e-1 trace(a.toString(16)); // 0 - works for integer part only var b:Number=12345678.9876543; // a bigg...

AngularJS directives are what controls the rendering of the HTML inside an AngularJS application. They can be an Html element, attribute, class or a comment. Directives are used to manipulate the DOM, attaching new behavior to HTML elements, data binding and many more. Some of examples of directives...

Python 2.x2.3 x = 'hello world!' vowels = [x for x in 'AEIOU'] print (vowels) # Out: ['A', 'E', 'I', 'O', 'U'] print(x) # Out: 'U' Python 3.x3.0 x = 'hello world!' vowels = [x for x in 'AEIOU'] print (vowels) # Out: ['A', 'E', 'I', 'O', 'U'] print(x) # Out: 'hello world!' ...

AngularJS code for rendering plain text: <p>{{ ScopePropertyX }} and {{ ScopePropertyY }}</p> KnockoutJS equivalent: <p> <!-- ko text: ScopeObservableX --><!-- /ko --> and <!-- ko text: ScopeObservableY --><!-- /ko --> </p> or: ...

Let's say that we want to have an alternative greeting that is accessible through a different URL. We might create a new function or even a new controller for that, but a best practice is to optimize what we already have, to make it work at it's best! To do this, we'll keep the same view as in the ...

public class Tag { public IList<string> Synonyms { get; set; } } Synonyms is a collection-type property. When the Tag object is created using object initializer syntax, Synonyms can also be initialized with collection initializer syntax: Tag t = new Tag { Synonyms = new List&...

Recursion is when a method calls itself. Preferably it will do so until a specific condition is met and then it will exit the method normally, returning to the point from which the method was called. If not, a stack overflow exception might occur due to too many recursive calls. /// <summary>...

Routes in Flask can be defined using the route decorator of the Flask application instance: app = Flask(__name__) @app.route('/') def index(): return 'Hello Flask' The route decorator takes a string which is the URL to match. When a request for a URL that matches this string is receive...