Conceptually what happens when an interrupt occurs When prog

Conceptually, what happens when an interrupt occurs? When programming with interrupts in C, what two function calls must be made in your code, regardless of architecture?

Solution

1.Interrupts are messages to the Pentium chip to halt it current activity, and perform our requested job.

2.We can almost do anything using interrupts without using functions.

Below is the example for it

we haven’t used printf() still we are able to print message on screen.

#include<dos.h>

void main() {

   char *message = \"Chegg Usa$\";

   _AH = 9;

   _DX = (int) message;

   geninterrupt(0x21);

}

Output :

Chegg Usa

Explanation of Program :

#include<dos.h>