Define interrupts in assembly language, Computer Engineering

Assignment Help:

Q. Define Interrupts in assembly language?

An interrupt causes interruption of an ongoing program. A number of the common interrupts are: printer, monitor, keyboard, an error condition and trap etc. 

8086 identifies two types of interrupts: Software interrupts and Hardware interrupts.

Hardware interrupts are produced when a peripheral Interrupt servicing program requests for some service. A software interrupt causes a call to OS. It generally is the input-output routine. 

Let's discuss software interrupts in more detail. A software interrupt is started using following statements:

INT number

In 8086 this interrupt instruction is processing employing the interrupt vector table (IVT). The IVT is situated in the first 1K bytes of memory and has a total of 256 entities every one of them of 4 bytes. An entry in interrupt vector table is recognised by the number provided in the interrupt instruction. Entry stores the address of operating system subroutine which is used to process interrupt. This address can be different for numerous machines. Figure belowdisplays the processing of an interrupt.

2478_Define Interrupts in assembly language.png

Figure: Processing of an Interrupt


Related Discussions:- Define interrupts in assembly language

Rubbers, engineering plastics ,rubbers ,composites

engineering plastics ,rubbers ,composites

Representation of real-system, Maria opened her authentic Mexican restauran...

Maria opened her authentic Mexican restaurant MiCazuela in Tucson inthe 1980s. It quickly became popular for the tasty food and use of fresh organicproduce and all-natural meats. L

What is replacement policy in cache, Q.What is Replacement Policy in cache?...

Q.What is Replacement Policy in cache? When a new block has to be fetched in cache the other block may have to be replaced to make room for new block. Replacement policy determ

Design an or to and gates combinational network, Design an OR to AND gates ...

Design an OR to AND gates combinational network and NAND only n/w for the following Boolean expression: A'BC'D + ABC'D' + A'B'CD' + A'BCD'

Principles of composition, PRINCIPLES OF COMPOSITION The principles of ...

PRINCIPLES OF COMPOSITION The principles of composition are the way that the elements of composition are used to achieve a particular purpose. Some of the main principles of co

the three main components of linq, What are the three main components of L...

What are the three main components of LINQ or Language Integrated Query? Ans) 1. Standard Query Operators 2. Language Extensions 3. LINQ Providers

Algorithm of non-repudiation designing e-cash based system, Give a suitable...

Give a suitable algorithm of non-repudiation in designing e-cash based system. The algorithm of non-repudiation in designing e-cash based system is as illustrated below: Ke

Parallel computer architecture , Parallel Computer Architecture Intr...

Parallel Computer Architecture Introduction We have talked about the classification of parallel computers and their interconnection networks in that order in units 2 and

Classical approach - canonical genetic algorithm, Classical approach - Cano...

Classical approach - Canonical genetic algorithm: However returning to the classical approach, as there example, whether solving a particular problem involved finding a set of

Which is not a valid page replacement policy, Which is not a valid page rep...

Which is not a valid page replacement policy? Ans. RU policy (Recurrently used) is not a valid page replacement policy.

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