Answered Essay: Consider the following change to the interrupt mechanism discussed in class.

Consider the following change to the interrupt mechanism discussed in class.
Suppose we are not concerned with protection issues—users are well behaved and they don’t use priviledged instructions and stay within their memory area.
Suppose now the mode bit is always 1, even in user program execution, since protection is not an issue.
when an interrupt occurs, hardware saves only the PC, not the PSW. Similarly, hardware loads from the Interrupt vector only the PC, not the PSW. RTI instruction reloads only the PC, not the PSW.
Any problems with this scheme?

Expert Answer



Your scheme is pretty good but there are couples of changes that I would like you to make. that there is no cure from event driven errors and there is no cure for the Time-triggered system false. so for that what you can do is create a code in which you use the boolean expression in which one of these error occurs then it should always show 1-bit value and if the system and PSW are running fine then you can use the 0-bit.

This is only the change that I would like you to make.

Mode bit is always 1 states that there will be no error in the execution.

Buy Essay
Calculate your paper price
Pages (550 words)
Approximate price: -

Help Me Write My Essay - Reasons:

Best Online Essay Writing Service

We strive to give our customers the best online essay writing experience. We Make sure essays are submitted on time and all the instructions are followed.

Our Writers are Experienced and Professional

Our essay writing service is founded on professional writers who are on stand by to help you any time.

Free Revision Fo all Essays

Sometimes you may require our writers to add on a point to make your essay as customised as possible, we will give you unlimited times to do this. And we will do it for free.

Timely Essay(s)

We understand the frustrations that comes with late essays and our writers are extra careful to not violate this term. Our support team is always engauging our writers to help you have your essay ahead of time.

Customised Essays &100% Confidential

Our Online writing Service has zero torelance for plagiarised papers. We have plagiarism checking tool that generate plagiarism reports just to make sure you are satisfied.

24/7 Customer Support

Our agents are ready to help you around the clock. Please feel free to reach out and enquire about anything.

Try it now!

Calculate the price of your order

Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.


Let us write that nagging essay.


Submit Your Essay/Homework Instructions

By clicking on the "PLACE ORDER" button, tell us your requires. Be precise for an accurate customised essay. You may also upload any reading materials where applicable.


Pick A & Writer

Our ordering form will provide you with a list of writers and their feedbacks. At step 2, its time select a writer. Our online agents are on stand by to help you just in case.


Editing (OUR PART)

At this stage, our editor will go through your essay and make sure your writer did meet all the instructions.


Receive your Paper

After Editing, your paper will be sent to you via email.

× How can I help you?