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 ?

Python Help, I need help! import cgi, cgitb cgitb.enable() HTML_head = ''C...

I need help! import cgi, cgitb cgitb.enable() HTML_head = ''Content-type: text/html\n\n'' HTML_top = '''''' Restaurant Results '' Restaurant Results '''''' HTML_bottom =

Accessing folders and printers, Accessing Folders and Printers Accessi...

Accessing Folders and Printers Accessing folders, files and printers of another computer is as easy as accessing another computer. To access folders and printers of another c

Internet, Explain how the internet works

Explain how the internet works

Stack instructions, These instructions permit the use of the stack to store...

These instructions permit the use of the stack to store or recover data. POP POPF PUSH PUSHF POP INSTRUCTION Purpose: It improves a portion of information from the stack POPF INST

Need of artificial intelligence, Need of artificial intelligence: Artif...

Need of artificial intelligence: Artificial Intelligence may be seen as just the latest tool in the philosopher's toolbox for answering these all questions about the behavior o

Explain briefly about gnome desktop, Question 1 Brief about the shells of ...

Question 1 Brief about the shells of Linux operating system Question 2 Explain briefly about GNOME desktop Question 3 Write note on the following Encryption Sig

What is the use of system bus ?, The system bus is a cable which carries da...

The system bus is a cable which carries data communication among the major components of the computer, as well as the microprocessor. Not all of the communication that uses the bus

C, Padovan sequence

Padovan sequence

Flowcharting, Flowcharting: Flowcharting: A Flowchart is a graphical r...

Flowcharting: Flowcharting: A Flowchart is a graphical representation of an algorithm. It can be compared to the blueprint of a building. Just as a building contractor refers

Reasons for recommendation free and open source software, For multi-nationa...

For multi-national business IT system, free and open source software (FOSS) is recommended over a proprietary system. The reasons for this recommendation are: 1. Security I

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