Perform on occurrence of an interrupt, Computer Engineering

Assignment Help:

Q. Perform on occurrence of an interrupt?

Determining these requirements let's work out steps that CPU should perform on occurrence of an interrupt.

The CPU should find out source of interrupt as this will decide which interrupt service routine is to be executed.
The CPU then obtains the address of interrupt service routine which are stored in memory (in general).
What occurs to program the CPU was executing before interrupt? This program requires to be interrupted till CPU executes ISR (Interrupt service program). Do we need to do something for this specific program? Well context of this program is to be kept.
Ultimately CPU executes interrupt service routine till completion of routine. A RETURN statement signifies the end of this routine. Later the control is passed back to interrupted program.

Related Discussions:- Perform on occurrence of an interrupt

What is tri-state logic, What is Tri-state logic ? Ans. Tri-state Logi...

What is Tri-state logic ? Ans. Tri-state Logic: In common logic circuits, there are two states of the output, as LOW and HIGH. If the output is not in the LOW state, this

Example of weight training calculations, Example of Weight training calcula...

Example of Weight training calculations: Through having calculated all the error values associated with such each unit like hidden and output then we can now transfer this inf

Explain what is dtmf signalling, Explain what is DTMF signalling. Dual ...

Explain what is DTMF signalling. Dual Tone Multi Frequency (DTMF) was initially introduced in 1963 with 10 buttons into Western Electric 1500 -type telephones. Dual Tone Multi

Define virtual memory, Normal 0 false false false EN-IN...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Which one is better hardware or software firewall, Which one is better hard...

Which one is better hardware or software firewall While deciding whether to buy a hardware or software firewall, the user must consider important factors such as performance an

Differentiate between validation and simulation, Question 1: a) Name a...

Question 1: a) Name and give a brief description of three Real-Time Systems. b) State three downfalls of Embedded Systems. c) Differentiate between a microprocessor an

Risks by financial service provider perspective, What are the risks by fina...

What are the risks by financial service provider's perspective in Electronic Payment Systems? Through the financial service provider's perspective: • Stolen service or c

Draw and elucidate the block diagram 8259, Draw and elucidate the block dia...

Draw and elucidate the block diagram of programmable interrupt controller 8259. The 8259A adds 8 vectored priority encoded interrupts to microprocessor. It can be expanded to 6

Data rate limitations in PSTN's by using nyquist theorem, Explain with the ...

Explain with the help of Nyquist theorem, the data rate limitations in PSTN's. Data rates in PSTNs : A voice channel in a public switched telephone network is band restricted

What is the role of a controller in an mvc application, The controller resp...

The controller responds to user interactions, with the application, by selecting the act method to implement and also selecting the view to render.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages