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

Which Transistor configuration best to use in cascade, Q. Which of the 3 tr...

Q. Which of the 3 transistor configuration is best to use in cascade if maximum voltage gain is to be realized?  The common collector configuration is not used for intermediate

Determine the voltage across resistor, Determine the voltage across the 20-...

Determine the voltage across the 20- resistor in the following circuit of Figure (a) with the application of superposition.

Define smoothing the output, Define Smoothing the Output? The output of...

Define Smoothing the Output? The output of a DAC is stepped, such as the analog waveforms which were sampled and held. This stepped, or staircase effect is a distortion, and it

Harmonics, how harmonics shows effect on power systems?

how harmonics shows effect on power systems?

Binary number system - number systems , Binary  Number Systems As men...

Binary  Number Systems As mentioned  earlier this  number is used by  digital  systems like  microprocessor  and other  digital  circuits. This  number  systems  use only two

Turn off time - thyristor, Turn off Time The time  interval  between...

Turn off Time The time  interval  between  the instant when  the SCR  current  has  decreased to zero  after external  switching  of the SCR  voltage  circuit  and the  inst

What is capacitor, What is Capacitor -  A capacitor is an electrical d...

What is Capacitor -  A capacitor is an electrical device that is used to kept electrical energy.   -  The unit of capacitance is Farad. The symbol of capacitance is C.

Potentiometers , Which potentiometer do I need to control; 6v 2amps dc?

Which potentiometer do I need to control; 6v 2amps dc?

Amplifiers with feedback, Q. Amplifiers with Feedback? Almost all pract...

Q. Amplifiers with Feedback? Almost all practical amplifier circuits include some form of negative feedback. The advantages gained with feedback may include the following: •

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