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

Explain extended binary coded decimal interchange code, Q. Explain Extended...

Q. Explain Extended Binary Coded Decimal Interchange Code? Extended Binary Coded Decimal Interchange Code (EBCDIC) is a character-encoding format employed by IBM mainframes. It

C program, #how to write c program for all types of beam reactions

#how to write c program for all types of beam reactions

Discuss the process of data mining, Discuss the process of data mining? ...

Discuss the process of data mining? The process of data mining having of three stages: (1)The initial exploration (2) Model building or pattern identification with validat

Search mechanisms in prolog - artificial intelligence, Search mechanisms in...

Search mechanisms in Prolog We can utilize this simple Prolog program to describe how Prolog searches: president(X) :- first_name(X, georgedubya), second_name(X, bush). p

Explain virtual packets, Explain Virtual Packets. The router can't tran...

Explain Virtual Packets. The router can't transfer a copy of a frame from one kind of network to other since the frame formats be different. More significantly, the router cann

Show the code conversion with example, Q. Show the Code Conversion with exa...

Q. Show the Code Conversion with example? The conversion of data from one form to another is required. Consequently we will discuss an illustration for converting a hexadecimal

Interpolation algorithm, Design two matlab algorithms for enlarging the 256...

Design two matlab algorithms for enlarging the 256x256 images into 512x512 images by using bilinear and bicubic interpolations   a)  Evaluate the interpolated images with the

Idiomatic translations - artificial intelligence, For this exercise you hav...

For this exercise you have to gather and report some linguistic data. Make sure your data are accurate by checking them with a native speaker if you yourself are not a native speak

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