How are interrupt handled by the operating system, Computer Engineering

Assignment Help:

How are interrupt handled by the operating system?

The fundamental interrupt mechanism works as follows:

The CPU hardware has wire called the interrupt-request line which the CPU senses after executing instruction. The device controller increases an interrupt by asserting a signal on the interrupt request line. Center proceeding unit detects that a controller has asserted a signal on the interrupt request line.

478_Interrupt driven input-output cycle.png

Interrupt driven input-output cycle

The CPU saves minute amount of state, as the current value of the instruction pointer i.e. return address, and jumps to the interrupt handler routine at fixed address in memory. The interrupt handler finds the cause of the interrupt performs the essential processing and executes a return from interrupt instruction, thereby clearing the interrupt. The CPU restarts to the execution state prior to the interrupt.


Related Discussions:- How are interrupt handled by the operating system

What do you mean by analysis and design, Analysis: Basically, it is the...

Analysis: Basically, it is the process of determining what requirement to be done before how it should be done. In order to accomplish this, the developer shows the existing sy

How would you kill a process, How would you kill a process? The "kill" ...

How would you kill a process? The "kill" command takes the PID as one argument; this signifies which process to terminate. The PID of a process can be got using "ps" command

Layered architecture of electronic data interchange, Illustrated about the ...

Illustrated about the layered architecture of Electronic Data Interchange? Layered Architecture of EDI: Electronic Data Interchange is most commonly applied into th

Important part of process - canonical genetic algorithm, Important part of ...

Important part of Process - canonical genetic algorithm: In such a scenario evolution or random mutations are often highly deleterious or can say harmful to the organism it me

Simple assembly programs, Data Transfer Two most fundamental data trans...

Data Transfer Two most fundamental data transfer instructions in 8086 microprocessor are XCHG and MOV. Let's give illustrations of the use of these instructions. Program 1:

What is race condition, What is Race condition? Race condition: The c...

What is Race condition? Race condition: The circumstances where several processes access - and manipulate shared data-concurrently. The last value of the shared data depends

VLSI implementation of control unit, Q. VLSI Implementation of Control Unit...

Q. VLSI Implementation of Control Unit? A main potential advantage of RISC is VLSI implementation of microprocessor. VLSI Technology has decreased the delays of transfer of inf

Describe the modes of wave propagation, Question : a) Describe the foll...

Question : a) Describe the following modes of wave propagation: - Line of sight - Ground waves - Skywaves b) Why can waves with a very low frequency be used for submar

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