Question

When interrupt is triggered, processor collects the ISR address from
A. Program counter
B. None
C. Vector table
D. Stack​

Answer 1

Answer:

Whenever an interrupt occurs, the controller completes the execution of the current instruction and starts the execution of an Interrupt Service Routine (ISR) or Interrupt Handler. ... ISR tells the processor or controller what to do when the interrupt occurs.

Explanation:

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Answer 2

Answer:

When interrupt is triggered, processor collects the ISR address from

A. Program counter.

Explanation:

• A ISR means Interrupt Service Routine.
• It is a software process in which it will invoke a interruption request from a particular hardware device that is also known as Interrupt Handler.
• When the ISR comes to an end, the process will begin.

• Example of ISR is:

Routine that can handle any keyboard events, like releasing and pressing the keys.

• There are two types of interrupts:

1) Hardware interrupt:

It occurs by the signal of request from the circuits of the peripheral.

2) Software Interrupt:

It occurs by the executing the instructions.

• A program counter is defined as when the program is registered with computer processor it will contain a particular address that is location.
• It will start to give an instruction such that it provide the current time.

Example:

The flash memory chip in the motherboard of the computer.

Therefore, the interrupt is triggered, it forma a processor that collects the ISR address from the Program counter.

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