User Account

All Pages

explain data movement ?, Basic Computer Science

Assignment Help:
In any program it is essential to move the data in the memory and in the CPU registers; there are a number of ways to do this: it can copy data in the memory to a number of register, from register to register, from a stack to a register, from a register to a stack, to transmit data to external devices in addition to vice versa.
This group of data is subject to rules and restrictions. The next are some of them:
*It is not potential to move data from a memory locality to another unswervingly; it is essential to first move the data of the origin locality to a register and then from the register to the destiny area.
*It is not possible to move a constant straight to a segment register; it first must be moved to a register in the CPU then to segment register.
It is feasible to move data blocks through the movs instructions, which copies a chain of bytes or words; movsb which copies n bytes from a region to another; and movsw copies n words from a locality to another. The last two instructions take the values from the distinct addresses by DS:SI as a set of data to move and ES:DI as the new localization of the
data.
To move data there are also structures identified batteries, where the data is introduced with the push instruction and are removed with the pop instruction.
In a stack the first data to be introduced is the last one we can take, this is, if in our program we utilize these instructions:
PUSH AX
PUSH BX
PUSH CX
To return the accurate values to each register at the moment of taking them from the stack it is essential to do it in the following sequence:
POP CX
POP BX
POP AX
For the contact with external devices the in command to read the information received from a port and the out command is used to send information to a port.
The out command’s syntax is:
OUT DX,AX
The in command’s syntax is:
IN AX,DX

Related Discussions:- explain data movement ?

Computer architecture, speed up factor for superscalar architecture

speed up factor for superscalar architecture

Networking and telecommunications, NETWORKING AND TELECOMMUNICATIONS: ...

NETWORKING AND TELECOMMUNICATIONS: Computers can now communicate with each other and with a range of peripheral devices, over distances with increasing speed and reliability.

Give a preliminary design for the mobile phone, Question: Imagine that ...

Question: Imagine that you are part of a design team creating a new mobile phone for people such as "Angel White" whose persona is given below: Angel is turning 90 years old

Discuss the advantages and disadvantages of printed indexes, QUESTION 1 ...

QUESTION 1 Discuss the advantages and disadvantages of printed indexes. QUESTION 2 (i) The Library of Congress Subject Headings List and the Sears Subject Headings List

What are the different types of props, Question 1 Explain the importance o...

Question 1 Explain the importance of edge loops and anatomical body functions in animation Question 2 What are the three sets of curves for the hair system? Questio

Client - server architecture, Client/ Server Architecture:   As the ca...

Client/ Server Architecture:   As the capacity and power of personal computers improved, the need to share the processing demands between the host server and the client workst

Subroutine and functions, Subroutine and Functions:  In a program, it ...

Subroutine and Functions:  In a program, it is often necessary to repeat a statement or group of statements at several points to accomplish a particular task. Repeating the sa

How Round robin scheduling algorithm is useful than others ?, Round robin (...

Round robin (RR) is one of the simplest, oldest, fairest and most extensively used algorithms. • In the round robin scheduling, processes are posted in a FIFO manner but are given

Explain acl with its types, Question 1 Discuss the two basic operational c...

Question 1 Discuss the two basic operational characteristics of RR Only an active route is redistributed Route redistribution does not impact local route selection

What is a signaling protocol, QUESTION (a) How VoIP Works and how VoIP ...

QUESTION (a) How VoIP Works and how VoIP helps today's business? (b) What is a signaling protocol? Explain about SIP components and their key benefits (c) What is IPTV? L

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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