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Which tool is used to pause execution after a procedure while stepping through a program?
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Four step that are necessary to an a program an a completely dedicated machine?
i. Reserve Machine Time; ii. Manually Load the program into the memory. iii. Load the starting address and begin execution. iv. Monitor and control execution through the use of Console.
What are source language issues in run time environment?
Run-Time EnvironmentsThe allocation of data objects is managed by the run-time support package, consisting of routines loaded with the generated target code. The design of run-time support package is influenced by the semantics of procedures. Each execution of the procedure is referred to as an activation of the procedure. If the procedure is recursive several of its activations may be alive at the same time.Source Language IssuesProceduresA procedure definition is a declaration that, in its simplest form, associates an identifier with a statement. The identifier is the procedure name, and the statement is the procedure body. Procedures that return values are called function in many languages; however, it is convenient to refer them as procedures. A complete will also be treated as a procedure. When a procedure name appears within an executable statement, we say that the procedure is called at that point. The basic idea is that a procedure call executes the procedure body.Some of the identifiers appearing in a procedure definition are special, and are called formal parameters (or just formals) of the procedure. Arguments known as actual parameters may be passed to a called procedure they are substituted for the formals in the body.Activation TreesWe make the following assumptions about the flow of control among procedure during the execution of a program:Control flows sequentially, that is, the execution of a program consists of a sequence of steps, with control being at some point in the program at each step.Each execution of a procedure starts at the beginning of the procedure body and eventually returns control to the point immediately following the place where the procedure was called. This means the flow of control between procedures can be depicted using trees.Each execution of a procedure body is referred to as an activation of the procedure. The lifetime of an activation of a procedure p is the sequence of steps between the first and last steps in the execution of the procedure called by them and so on. In general the term "lifetime" refers to a consecutive sequence of steps during the execution of a program.If a, b are procedure then their lifetimes are either non-overlapping or are nested. That is if b is entered before a, is left then control must leave b before it leaves a. this nested property of activation lifetime can be illustrated by inserting two print statements in each procedure one before the first statement of the procedure body and the other after the last. The first statement prints enter followed by the name of the procedure and the values of the actual parameters; the last statement prints leave followed by the same information.A procedure is recursive if a new activation can begin before an earlier activation of the same procedure has ended. A recursive procedure need not call itself directly; p may call another procedure q, which may then call p through some sequence of procedure calls. We can use tree, called an activation tree, to depict the way control enters and leaves activations. In an activation tree,1. Each node represents an activation of a procedure,2. The root represents the activation of the main program,3. The node for a is the parent of the node for b if and only if the control flows from activation a to b, and4. The node for a, is to the left of the node for b if and only if the lifetime of a, occurs before the lifetime of b.Since each node represents a unique activation and vice versa it is convenient to talk of control being at a node it is in the activation represented by the node.Control Stacksthe flow of control in a program corresponds to a depth-first traversal of the activation tree that starts at the root ,visits a node before its children, and recursively visits children at each node left to right order. the output in fig 7.2 can therefore be reconstructed by traversing the activation tree in fig7.3,printing enter when the node for an activation is reaches for the first time and printing leave after the entire sub tree of the node has been visited during the traversal.We can use a stack, called a control stack to keep track of live procedure activations. The idea is to push the node for activation onto the control stack as the activation begins and to pop the node when the activation ends.Then the contents of the control stack are related to the paths to the root f the activation tree. When the node n is at the top of the control stack, the stack contains the nodes along the path from n to the root.Example 7.2:fig 7.4 shows nodes from the activation tree of fig 7.3 that that have been reached when control enters the activation represented by q(2,3).Activations with labels r, p(1,9),p(1.3),and q(1,0) have executed to completion, so the figure contains dashed lines to their nodes. The solid lines mark the path from q (2, 3) to the root.At this point the control stack contains the following nodes along this path to the root (the top of the stack is to the right)s, q(1,9),q(1,3),q(2,3) and the other nodes.The Scope of a DeclarationA declaration in a language is a syntactic construct that associates information with a name. Declarations may be explicit, as in the Pascal fragmentVar i : integer;Or they may be explicit. For example, any variable name starting with I is or assumed to denote an integer in a FORTRAN program unless otherwise declared.There may be independent declarations of the same name in the different parts of the program. The scope rules of a language determine which declaration of a name applies when the name appears in the text of a program. In the Pascal program in fig 7.1, i am declared thrice, on lines 4, 9 and 13, and the users of the name i in procedures read array, partition and quick sort are independent of each other. The declaration on line 4 applies to uses of i on line 6.tht is, the two occurrences of i on the line 6 are in the scope of theThe portion of the program to which a declaration applies is called the scope of the declaration applies is called the scope of the declaration .An occurrence of a name in a procedure is called to be local to the procedure if it is the scope of a declaration within the procedure; otherwise, the occurrence is said to be non-local.The distinction between local and the non-local names carries over to any syntactic construct that can have declarations within it.While the scope is a property of the declaration of a name, it is sometimes convenient to use the abbreviation "the scope of a name x" for "the scope of the declaration of name x that applies to this occurrence of x". In this sense, the scope of ion line 17 in fig7.1 is the body of quick sort. At compile time, the symbol table can be to find the declaration that applies to an occurrence of a name. When a declaration is seen, a symbol table entry is created for it. As long as we are in the scope of the declaration, its entry is returned when the name in it is looked up. Symbol tables are discussed in section 7.6a
An instruction book or program that takes users through a prescribed series of steps to learn a complex program is called a?
An instruction book or program that takes users through a prescribed series of steps to learn a complex program is called a tutorial.
What is void main in C programming?
The main function in C serves as the entry point of your application. A C program is not valid without a main function. There can only be one main function in your program, but you may use a choice of prototypes: int main (void); int main (int argc, char* argv[]); You use the first version when your program has no need for command line arguments (also known as command line switches). The second version passes the full command line in the argv argument as a null-terminated array of null-terminated strings. The argc argument holds the count of strings in argv and is always at least 1 since the program name is part of the command line (stored in argv[0]). Any switches passed to the program will be found in argv[1] through argv[argc-1]. The last argument, argv[argc], is always the null-terminator (a pointer to null). The return value allows you to return an integer to the host environment. Typically you will return 0 to indicate success and -1 to indicate failure. The void main (void); prototype is allowed in most implementations of C (but not in C++). This simply indicates no return value is expected. However, the prototype is non-standard and if your program makes use of the exit() function to terminate, your program will return whatever value you pass to the exit() function. Your implementation of C may also allow additional prototypes, however only the first two shown above are standard across all implementations. For portability, it is best to use one of these at all times.
What are Static variables in c?
A static variable in C is a variable whose value and memory allocation persists throughout the execution of the program. If the variable is declared at file scope (outside of any blocks) the static attribute means the variable is visible only to the file containing it, i.e. it can not be referenced through an extern reference in a different file.
What is mean by thread in c sharp?
A thread, in any language, is an independent execution path through a program.
Four step that are necessary to an a program an a completely dedicated machine?
i. Reserve Machine Time; ii. Manually Load the program into the memory. iii. Load the starting address and begin execution. iv. Monitor and control execution through the use of Console.
What is the Difference between procedure and thread?
A procedure is the way something is accomplished. In a computer, the procedure might be an application or a function within an application that causes something specific to be accomplished. A thread is the path of execution through the application. The thread can only take one branch of a decision point, so if an application says something like, "if X==55 (X = X+Y), and X in fact DOES equal 55, then the thread would go through that execution point.
Why the execution of java program is slower than a C program?
This is because Java runs it's code through a Virtual Machine which compiles it and runs it. C will compile native on your machine and the code will be run directly, without the use of a virtual machine.
How do you write a function in Turbo C that can run the program without rerunning the whole program?
The execution path of a program can only be affected by the program input. That is, if you change the input, you can alter the way the program behaves (just as changing the arguments to a function can alter the behaviour of the function). Typically you will alter the input via the command line, but you can also alter the input at any time during program execution. Redirecting input via the command line can be achieved by extracting the input from a file (via std::cin) or by implementing command line switches in your main function, or through a combination of the two.
A procedure performed through the skin is called what?
An invasive procedure.
What is kill thread?
A thread is an execution path through a program, initiated as an asychronous process. Killing a thread means to stop its execution. Usually, this is not a good idea. A thread should stop its own execution, either because it has completed its work, or because it was told to do so, perhaps with a shared semaphore. If you kill the thread externally, the thread stops and does not get a chance to clean things up, such as closing files and making objects consistent.
Can you get HIV from someone stepping on you with their heel?
No. You can only get the HIV virus through blood transfers and sex.
Does a worm on your computer require user interaction?
No. Worms are either spread via networks or through a Trojan. If the worm is spread through a Trojan, the installation program will usually contain an execution command to start the worm automatically. Worms that spread via networks have already been executed.
What is the procedure to obtain TABC certification?
The first step in obtaining a TABC certification is to go through an authorized TABC certification training program and pass that. After that you should be able to obtain your TABC certification.
What was the university of Alabama's logo before the a?
Alabama on top crimson tide on the bottom and an elephant stepping through
I Graduated from registered nurse program and did not take boards?
Well, no license means you cannot practice as a nurse. You have to inquire about the procedure to take your boards. It would be ashamed after going through all that training for nothing.
