Explain the operation of interrupt return instruction, Electrical Engineering

Assignment Help:

Explain the operation of IRET instruction.  What memory locations contain the vector for an INT 34 instruction?

The Interrupt return (IRET) instruction is utilized only along with software or hardware interrupt service procedures. When an IRET instruction executes, this stores the contents of I and T from the stack. It is important since it preserves the state of the flag bits. If interrupts were enabled before an interrupt service process, they automatically re-enabled through the IRET instruction since this restores the flag register.

Interrupt no. 20-FF are stored at an address 80 - 3FFH.


Related Discussions:- Explain the operation of interrupt return instruction

Design a water supply scheme for a station, Q. Design a water supply scheme...

Q. Design a water supply scheme for a station, adopting the following data - a) Source of water - River flow at a distance of 1 km. b) Requirement of water - 1 lack gallons p

What do you mean by addressing and numbering, Q. What do you mean by addres...

Q. What do you mean by addressing and numbering? Numbering and Addressing: In data and telephone networks, end equipment are more often single units than multiple devices uni

Digital storage oscilloscope , Q. Explain digital Storage Oscilloscope (DSO...

Q. Explain digital Storage Oscilloscope (DSO) with neat diagram, (b) Give the difference between analog and digital storage oscilloscope.   Principle of operation : The availa

Illustrate frequency-shift keying, Q. Illustrate Frequency-shift keying? ...

Q. Illustrate Frequency-shift keying? Digital transmission by FSK is a nonlinear modulation method that is appropriate for channels that lack the phase stability needed to perf

Transformer, What is the difference between primary and secondary winding o...

What is the difference between primary and secondary winding of transforme

Schematic diagram of a system in which the d/a converter, Q. Develop a sche...

Q. Develop a schematic diagram of a system in which the D/A converter of Figure can be employed in a digital voltmeter.

Realize various dividers in the schematic representation, Q. Counters are u...

Q. Counters are used to realize various dividers in the schematic representation of the digital clock shown in Figure. The blocks labeled "logic array" are logic gate combinations

Develop and execute a p spice program, Q. In the circuit shown in Figure th...

Q. In the circuit shown in Figure the switch opens at t = 0. Develop and execute a P Spice program to solve for v(t), and use PROBE to obtain a plot of v(t). Hint: Use the follo

Define abcd propagation , ABCD propagation of an optical ray through a s...

ABCD propagation of an optical ray through a system can be described by a straightforward two by two  matrix. In ray optics, the feature of a system is known by the correspondin

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