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 ?

Reflex agent-artificial intelligence, Reflex agent-Artificial Intelligence ...

Reflex agent-Artificial Intelligence If an agent decides and executes an action in response to a sensor input without consultation of its world, then it may be considered a ref

Star topology, Ask conceptual question answer about star topology#Minimum 1...

Ask conceptual question answer about star topology#Minimum 100 words accepted#

Java Assignment, Hi? are you conversant with Java that is J2SE 6 coz i have...

Hi? are you conversant with Java that is J2SE 6 coz i have assignments on this area?

Array, An array A is said to be special if all its elements are same. Given...

An array A is said to be special if all its elements are same. Given an array, your task is to convert the array to special array by performing some operations. The allowed operati

Database menegment system, list the function of database management system

list the function of database management system

Determine whether the system is stable or causal, QUESTION (a) For each...

QUESTION (a) For each of the following systems, determine whether the system is (1) stable, (2) causal, (3) linear, (4) time invariant, (5) passive (i) Y[n] = x[-n] (ii)

Flowcharts, flowchart that display yhe students average scores for 3 quizze...

flowchart that display yhe students average scores for 3 quizzes.Assume that there are 3 sections having 5 student each.Valid number is 1-100 for the quizzes.Enter an invalid numbe

Paid Website usability, I need an assignment done. how much

I need an assignment done. how much

Concept of operating system, Concept of operating system: An operating...

Concept of operating system: An operating system is an essential software component of a computer system. The basic  objectives of an operating system are to make the computer

C programming, a cloth merchant A cloth showroom has announced the followin...

a cloth merchant A cloth showroom has announced the following seasonal discounts on purchase of items: Purchase amount Discount Mill items Handloom items 0-100 - 5% 101-200 5% 7.5%

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