When interrupts occur the details of the current running task are stored by ....MARMDRInterrupt RegisterInterrupt Handler
Question
When interrupts occur the details of the current running task are stored by ....
- MARM
- DR
- Interrupt Register
- Interrupt Handler
Solution
When an interrupt occurs, the details of the current running task are stored by the Interrupt Handler. Here's a step-by-step explanation:
- An interrupt signal is sent to the processor.
- The processor finishes the current instruction it's executing and then responds to the interrupt.
- The processor saves the state of the current task, including the program counter and register values. This is done by the Interrupt Handler.
- The processor then jumps to a specific location in memory that contains the interrupt service routine (ISR), which is a special program that handles the interrupt.
- Once the ISR has finished executing, the original state of the task is restored, and the task continues from where it left off.
The MAR (Memory Address Register) and MDR (Memory Data Register) are not directly involved in storing the details of the current running task during an interrupt. The Interrupt Register is used to store the type of interrupt that has occurred.
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