void main while1 display; keyscan; ifK1==0K2==0K3==0 FMQ=0; else FMQ=1;

The given code is a main function that runs an infinite loop.

In each iteration of the loop, it calls the functions display() and keyscan().

After that, it checks the condition if K1, K2, or K3 is pressed (value is 0). If any of these keys is pressed, it sets the value of FMQ to 0. Otherwise, it sets the value of FMQ to 1.

This loop will continue running indefinitely, continuously updating the display and scanning for key inputs. The value of FMQ will be updated based on the key inputs.