A) What happens when a software Interrupt occurs? Write steps briefly? Â Â B) Differentiate between maskable and...

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Programming

A) What happens when a software Interrupt occurs? Writesteps briefly? Â Â
B) Differentiate between maskable and non-maskableinterrupts?
C) How are the multiplexed bus of 8086demultiplexed?
D) Find the address range when a 2K x 8 memory isinterfaced with 8086/8088?

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Ans1 An interrupt is a signal sent to the processor that interrupts the current process It may be generated by a hardware device or a software programAn interrupt is a signal to the kernel ie the core of the operating system that an event has occurred and this results in changes in the sequence of instructions that is executed by the CPU central processing unit A software interrupt also called an exception is an interrupt that is caused by software usually by a program in user mode When an interrupt occurs it causes the CPU to stop executing the current program The control then passes to a special piece of code called an Interrupt Handler or Interrupt Service Routine The interrupt handler will process the interrupt and resume the interrupted program A context switch is the process of storing and restoring state the See Answer

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