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

Explain the johnson counters, Explain the Johnson Counters? The Johnson...

Explain the Johnson Counters? The Johnson counters are a variation of standard ring counters with the inverted output of the last stage fed back to the input of the first stage

Explain industry standard architecture bus, Explain the term Industry Stand...

Explain the term Industry Standard Architecture Bus. The Industry Standard Architecture, bus has been approximately since the very start of the IBM-compatible personal computer

Stator voltage control methods - motor control , Stator Voltage Control Met...

Stator Voltage Control Methods By  controlling  the applied voltage  the speed  of an  induction motor  can be  controlled. Since  the output  torque of 3-? induction motor  i

Rahul, in 8085 name the 16 bit registers

in 8085 name the 16 bit registers

What would the cutoff frequency, Q. The cutoff frequency of a dominant mode...

Q. The cutoff frequency of a dominant mode in an air-?lled rectangular waveguide is 3 GHz. What would the cutoff frequency be if the same wave - guide were ?lled with a lossless di

Electronic, how a combination clipper works?

how a combination clipper works?

Explain integral-error or reset control, Q. Explain Integral-error or reset...

Q. Explain Integral-error or reset control? A control system is said to possess integral-error control when the generation of the output in some way depends upon the integral o

Ripple voltage amplitude, a) What is meant by Ripple Voltage?  Measure the ...

a) What is meant by Ripple Voltage?  Measure the Ripple Voltage Amplitude, Frequency and DC Offset b) Describe how Ripple Voltage could be decreased.

Circuit theory, Use basic circuit theory to convert the "T" circuit be...

Use basic circuit theory to convert the "T" circuit below into the equivalent "π". Hint: Remember to disconnect the voltage source and the load.

Short circuit, what is the time of short circuit ?

what is the time of short circuit ?

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