When can a user program execution be interrupted, Computer Engineering

Assignment Help:

When can a user program execution be interrupted?

It won't be desirable to interrupt a program when an instruction is being executed and is in a state such as instruction decode.  The most desirable place for program interruption will be when it has completed the prior instruction and is about to begin a new instruction. Figure below shows instruction execution cycle with interrupt cycle where interrupt situation is acknowledged. Please remember that even interrupt service routine is also a program and after recognizing interrupt next instruction executed by instruction cycle is first instruction of ISR (interrupt servicing routine).


Related Discussions:- When can a user program execution be interrupted

Explain communications and synchronization, Communications Parallel t...

Communications Parallel tasks normally have to exchange data. There are various manners in which this can be achieved like over a network or through a shared memory bus. The

Explain tri-state logic inverter, Explain Tri-state logic inverter with the...

Explain Tri-state logic inverter with the help of a circuit diagram. Give its Truth Table. Ans: Tri-state Logic Inverter: The functional diagram of Tri-state Logic Inve

What is fork, What is Fork Clk gets its value after 1 time unit, rese...

What is Fork Clk gets its value after 1 time unit, reset after 10 time units, enable after 5 time units, data after 3 time units. All the statements are executed in parallel.

Transportation model, advantages and disadvantages of northwest corner meth...

advantages and disadvantages of northwest corner method and least cost method

What is laser printers, Q. What is Laser Printers? Laser Printers are p...

Q. What is Laser Printers? Laser Printers are page printers. For print quality they also face same addressability issues as DMP/InkJet Printers. Though some other methods are p

What is the function of cu, What is the function of CU? The control uni...

What is the function of CU? The control unit works as the nerve center that coordinates all the computer operations. It issues timing signals that governs the data transfer.

What is CRC, In a frame transmission, CRC stands for? CRC stands for Cy...

In a frame transmission, CRC stands for? CRC stands for Cyclic Redundancy Check, in a frame transmission.

What are font metrics classes, The FontMetrics class is used to describe im...

The FontMetrics class is used to describe implementation-specific properties, like ascent and descent, of a Font object.

Algorithm to insert a key in b-tree, Algorithm to insert a key in B-tree is...

Algorithm to insert a key in B-tree is as follows: 1.  First search is completed for the place where the new record must be put. As the keys are inserted, they are sorted into

Determine the factor consider when selecting digital encoder, 1. What facto...

1. What factors should be considered when selecting a digital encoder (line codes)? Briefly mention five of those factors. Use sketches and additional text to describe the followin

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