Interrupt in 8051

[Basu]

Hai,

I want to use 4 inputs to 8051 , out of which one input is prioratise input i don’t no how to use interrupt or some other logic .
I tried with if & while loop logic , its not happening.
if i use while it will take all input conditions.

Pls am new to this feild …
pls give me some reference code.. 

[dagakshay]

here i am sending you the link how to interrupt in 8051

http://www.engineersgarage.com/tutorials/interrupts-8051-interrupt-programming
http://www.engineersgarage.com/microcontroller/8051projects/interface-rfid-AT89C51-serial-interrupt-circuit

[Author]

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