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

EME, How can i made Carnot engine

How can i made Carnot engine

Define von neumann architecture, Von Neumann architecture was first majoran...

Von Neumann architecture was first majoranticipated structure for general-purpose computer. However before consideringmain components of von Neumann architecture let us first elabo

How to create dlq rules table, DLQ - Dead Letter Queue If an applicati...

DLQ - Dead Letter Queue If an application tries to put a message to one more application and if it is not delivered then it goes to the DLQ. So DLQ is not anything but all und

Face recognition using java, how we get a perfect tutorial for face recogn...

how we get a perfect tutorial for face recognition using java

State the advantages of bespoke software, State the advantages of Bespoke ...

State the advantages of Bespoke Software -  specifically designed for application and hence more efficient and will only contain the features wanted; as it will be devoid of

What are the advantages of interviewing, What are the Advantages of Intervi...

What are the Advantages of Interviewing - Opportunity to motivate interviewee to give open and free answers to analyst's questions    -  allows analyst to probe for more f

Explain the storage class register, The Storage Class register The Sto...

The Storage Class register The Storage Class register : The storage class 'register' tells the compiler that the associated variable  should  be stored  in  high-speed  memor

Give the sequence of procedure calls for server and client, Give the sequen...

Give the sequence of procedure calls for both server and client for connect ion-oriented application.   In connection oriented communication the order of Procedure call

Representation in prolog - logic programs, Representation in Prolog - Logic...

Representation in Prolog - Logic Programs : Artificial intelligence If we impose some more constraints on first order logic, then we get to a representation language known as l

Define the full form of ssl, Define the full form of SSL SSL has becom...

Define the full form of SSL SSL has become fundamental to the spread of Internet community, and commerce and trade over Internet. Over years, the spread of its use for an incr

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