Q1

Suppose a program is running on a non-pipelined single processor computer system. The computer is connected to an external device that can interrupt the processor asynchronously. The processor needs to execute the interrupt service routine (ISR) to serve this interrupt. The following steps (not necessarily in order) are taken by the processor when the interrupt arrives: Which ONE of the following is the CORRECT sequence of steps? $\text{(iii), (i), (ii)}$ $\text{(i), (iii), (ii)}$ $\text{(i), (ii), (iii)}$ $\text{(iii), (ii), (i)}$