Explain the statements present in assembly language, Operating System

Assignment Help:

Explain the Statements Present in Assembly Language

An assembly program consists of subsequent three types of statements:

a. Imperative statements: this point out an action to be carried out during execution of the assembled program. Every imperative statement usually translates into one machine instruction.

b. Declaration statements: The syntax of declaration statements is like this:

        [Label]      DS
        [Label]      DC ‘

The DS statement reserves areas of memory and links names with them.
The DC statement constructs memory words containing constants.

c. Assembler directives: These instruct the assembler to carry out specific actions during the assembly of a program. For instance 
START directive points out that the first word of the target program generated by the assembler should be placed in the memory word along with address .


Related Discussions:- Explain the statements present in assembly language

Define a set of methods that allow executing a program, A set of methods th...

A set of methods that allow executing a program which is not completely in memory   is called A set of methods that allow executing a program which is not completely in memory

Synchronization, As we already know, threadsmust ensure consistency; otherw...

As we already know, threadsmust ensure consistency; otherwise, race conditions (non-deterministic results) might happen. Now consider the "too much milk problem": two people share

Command line interface, College life is tough.  Eating pizza for every meal...

College life is tough.  Eating pizza for every meal is hitting you hard.  You are looking at working out to stay healthy.  You found a web site that tells you how many calories eac

Kernel, 1. What must a kernel provide for an effective user-level thread im...

1. What must a kernel provide for an effective user-level thread implementation? 2. With respect to the quantum q in a scheduling algorithm, explain and discuss the impact of the

Control the access of the three global variables, Give a brief introduction...

Give a brief introduction about the operation of your program and show that you understand the idea behind threads and mutual exclusion variable. Why do we need to use mutual exclu

Explain tightly coupled systems and loosely coupled system, Differentiate t...

Differentiate tightly coupled systems and loosely coupled systems? Loosely coupled systems:-  Every processor has its own local memory  Every processor can communicate

What is time-stamping, time-stamping It is a method proposed by Lampor...

time-stamping It is a method proposed by Lamport, used to sequencing events in a distributed machine without the use of clocks. This process is intended to order events consis

Explain banker''s algorithm, Banker's Algorithm In this analogy ...

Banker's Algorithm In this analogy Customers ≡ processes Units ≡ resources, say, tape drive Ba

Explain the resource ownership by platform, Explain the Resource Ownership ...

Explain the Resource Ownership by Platform Ownership of data items may further be complicated by concepts defined in certain operating systems. Each operating system defines "p

Example of semaphore, For example, by initializing a semaphore to 0, thread...

For example, by initializing a semaphore to 0, threads can wait for an event to occur, and impose an ordering constraint, similar to a monitor using condition variables, but with m

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd