Table of Contents
What are the steps to handle an interrupt?
Exception and interrupt handling
- Overview. When an exception or interrupt occurs, execution transition from user mode to kernel mode where the exception or interrupt is handled.
- Details.
- CPU context (CPU state)
- Saving context.
- Determine the cause.
- Handle the exception/interrupt.
- Select a process to resume.
- Restoring context.
What happens to enable the CPU to run the interrupt service routine?
The CPU receives the interrupt signal. An exact copy of all of the registers in the CPU at that moment in time are stored in ‘the stack’ in primary memory so that the CPU can return to this exact state once it has finished dealing with the interrupt. The CPU then starts executing the mouse interrupt service routine.
What are different types of CPU interrupts?
Types of Interrupts Internal Interrupt Software Interrupt. External Interrupt.
How to fix high CPU usage?
Reasons for High CPU Usage. A background process is a program that runs on a PC includes those not opened in the window.
Can you explain what are interrupts in a processor?
Interrupt is a signal emitted by hardware or software when a process or an event needs immediate attention. It alerts the processor to a high priority process requiring interruption of the current working process. In I/O devices one of the bus control lines is dedicated for this purpose and is called the Interrupt Service Routine (ISR).
What are the interrupts and uses of interrupt?
Interrupts are commonly used by hardware devices to indicate electronic or physical state changes that require attention . Interrupts are also commonly used to implement computer multitasking, especially in real-time computing. Systems that use interrupts in these ways are said to be interrupt-driven.