It means that first the value of SP (Stack Pointer) is decremented by 2 then the value of the flag register is pushed to the memory address of the stack segment.
The value of the flag register is pushed into the stack. In the 8086 microprocessor, the following tasks are performed if an interrupt has been requested: How does the 8086 return to the main program after completing the ISR of an interrupt? After the execution of ISR, control returns back to the main program where it was interrupted. ISR is a program that tells the processor what to do when the interrupt occurs. Whenever an interrupt occurs the processor completes the execution of the current instruction and starts the execution of an Interrupt Service Routine (ISR). Interrupt allows peripheral devices to access the microprocessor. What is the function of an interrupt in a microprocessor?Īn Interrupt is a condition that halts the microprocessor temporarily so that the microprocessor can work on a different task and then return to its previous task. Write the priority among the interrupts in the 8086. Interrupt Vector Table (IVT) on 8086 microprocessor. Explain the interrupt structure of 8086 with its Interrupt Vector Table (IVT). INTO – Interrupt on overflow instruction. INT 03 – BreakPoint Interrupt Instruction. 
Name the dedicated interrupts in the 8086 along with their functions.INT- Interrupt instruction with type number.What are the different kinds of hardware and software interrupts in 8086?.How many interrupt types are present in the 8086 and how they are classified?.
How does the 8086 return to the main program after completing the ISR of an interrupt?. What is the function of an interrupt in a microprocessor?.
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