Tutorial by Examples: t

The first four 16-bit registers could have their upper- and lower-half bytes accessed directly as their own registers: AH and AL are the High and Low halves of the AX register. BH and BL are the High and Low halves of the BX register. CH and CL are the High and Low halves of the CX register. D...

Segmentation When Intel was designing the original 8086, there were already a number of 8-bit processors that had 16-bit capabilities - but they wanted to produce a true 16-bit processor. They also wanted to produce something better and more capable than what was already out there, so they wanted t...

AMD is a processor manufacturer that had licensed the design of the 80386 from Intel to produce compatible - but competing - versions. They made internal changes to the design to improve throughput or other enhancements to the design, while still being able to execute the same programs. To one-up I...

When the x86 Arithmetic Logic Unit (ALU) performs operations like NOT and ADD, it flags the results of these operations ("became zero", "overflowed", "became negative") in a special 16-bit FLAGS register. 32-bit processors upgraded this to 32 bits and called it EFLAGS, ...

Detailed instructions on Joomla installation can be found on its official website documentation.

Detailed instructions on getting joomla3.0 set up or installed.

Classpath requirements Eclipselink The Eclipselink and JPA API need to be included. Example Maven dependencies: <dependencies> <dependency> <groupId>org.eclipse.persistence</groupId> <artifactId>eclipselink</artifactId> <version>2.6.3&lt...

(defun foobar (x y) (format t "X: ~s~@ Y: ~s~%" x y)) (foobar 10 20) ; X: 10 ; Y: 20 ;=> NIL

Optional parameters can be specified after required parameters, by using &OPTIONAL keyword. There may be multiple optional parameters after it. (defun foobar (x y &optional z) (format t "X (~s) and Y (~s) are required.~@ Z (~s) is optional.~%" x y z)) ...

Global named functions are defined with DEFUN. (defun foobar () "Optional documentation string. Can contain line breaks. Must be at the beginning of the function body. Some will format the docstring so that lines are indented to match the first line, although the built-in DESCRIBE-func...

A single rest-parameter can be given with the keyword &REST after the required arguments. If such a parameter exists, the function can take a number of arguments, which will be grouped into a list in the rest-parameter. Note that the variable CALL-ARGUMENTS-LIMIT determines the maximum number of...

Functions always establish a block around the body. This block has the same name as the function name. This means you can use RETURN-FROM with this block name to return from the function and return values. You should avoid returning early whenever possible. (defun foobar (x y) (when (oddp x) ...

Keyword parameters can be defined with the &KEY keyword. They are always optional (see the Optional Parameters example for details of the definition). There may be multiple keyword parameters. (defun foobar (x y &key (z "Default" zp)) (format t "X (~s) and Y (~s) are requi...

Simple split of an IP number string. > (lispworks:split-sequence "." "127.0.0.1") ("127" "0" "0" "1") Simple split of an URL: > (lispworks:split-sequence ".:/" "http://127.0.0.1/foo/bar.html" ...

page = PAGE page.10 = TEXT page.10.value = HELLO WORLD Usually this typoScript snippets are added to Web >> Template >> Info/Modify >> setup This snippet opens a new PAGE object. Inside the PAGE object, the 10th entry is set to be a TEXT object. The value of thus TEXT object ...

Scipy contains parts written in C, C++, and Fortran that need to be compiled before use. Therefore make sure the necessary compilers and Python development headers are installed. Having compiled code also means that Scipy needs additional steps to import from development sources, which are explained...

Move semantics are a way of moving one object to another in C++. For this, we empty the old object and place everything it had in the new object. For this, we must understand what an rvalue reference is. An rvalue reference (T&& where T is the object type) is not much different than a norma...

Say we have this code snippet. class A { public: int a; int b; A(const A &other) { this->a = other.a; this->b = other.b; } }; To create a copy constructor, that is, to make a function that copies an object and creates a new one, we norma...

Similarly to how we can assign a value to an object with an lvalue reference, copying it, we can also move the values from an object to another without constructing a new one. We call this move assignment. We move the values from one object to another existing object. For this, we will have to over...

The normal orElse method takes an Object, so you might wonder why there is an option to provide a Supplier here (the orElseGet method). Consider: String value = "something"; return Optional.ofNullable(value) .orElse(getValueThatIsHardToCalculate()); // returns "some...