Clarify the operation of iret instruction, Computer Engineering

Assignment Help:

Clarify the operation of IRET instruction.  What memory locations comprise the vector for an INT 34 instruction?

Interrupt return (IRET) instruction is used only with hardware or software interrupt service procedures. Whenever an IRET instruction executes, it stores the contents of T and I from the stack. This is essential because it preserves the state of flag bits. If interrupts were enabled before an interrupt service procedure, they automatically re-enabled by IRET instruction as it restores the flag register.

Interrupt Number 20-FF are stored at an address 80 - 3FFH.

 


Related Discussions:- Clarify the operation of iret instruction

Quick sort exhibit its worst-case behaviour, In which input data does the a...

In which input data does the algorithm quick sort exhibit its worst-case Behaviour? The Quick Sort method exhibits its worst-case behavior when the input data is " Already Comp

Define access time for magnetic disk, Define access time for magnetic disk....

Define access time for magnetic disk. The sum of seek time and rotational delay is known as access time for disks. Normal 0 false false false EN-IN

Identify free memory areas in allocation and de-allocations, Name and expla...

Name and explain the popular techniques to identify free memory areas as a result of allocation and de-allocations in a heap. Two well-liked techniques to identify free memory

Differentiate memory mapped and isolated i/o, Q. Explain how does CPU perf...

Q. Explain how does CPU perform Read and Write operation on peripheral device taking suitable example in case of Asynchronous Technique. Differentiate Memory mapped and Isolated

Define processor clock, Define processor clock. Processor clock is expl...

Define processor clock. Processor clock is explained as the time periods in which all operations and data transfer within the processor take place.

recycling from e-waste to resources , Make at least 6 web pages with good ...

Make at least 6 web pages with good formatting, color balance and presentation on any one of the following topics:- 1.    Recycling from E-waste to resources 2.    Light and So

What are the advantages of using xml over html, What are the advantages of ...

What are the advantages of using XML over HTML?  The root cause of the problem lies in HTML (Hyper Text Mark-up Language), the defacto standard for web publication. The main pr

Mpi, write an8086 alp to exchange a block of N bytes of data between sourc...

write an8086 alp to exchange a block of N bytes of data between source and destination

large block , Given a RAID 3 (bit-interleaved parity) with k disks, how we...

Given a RAID 3 (bit-interleaved parity) with k disks, how well will large block transmits work? How well will it handle a high I/O request rate? Compare the performance to a one di

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