Is this possible with Interrupt

[christia]

I have a doubt whether it is possible to write interrupts using programming language C to carry out some time bound task. If so can someone mention some of the time bound interrupts predefined functions used in C for this purpose?

[RajivPrasad]

Yes it is very much possible to write interrupts using programming language C to carry out time bound task also. One of the predefined function which comes to my mind now is inportb() which takes the value from the port number specified in arguments.