Write an assembly language program with memory model form with proper comments, that will automate the furnace mechanism. It will output $80$h to the port addresses $4050$h$$ and $4060$h$,$ to operate the two valves $($connected at the entrance of the furnace for raw material$)$OPEN FOR A PREPROGRAMMED TIME$,$ connected at respective ports. After that to start the heating process, $50$h$$ is to be outputted at port address $30$h$.$ When furnace temperature reaches desired temperature level a sensor attached at port address $60$h$$ crosses the threshold value $$A$0$h$.$ Now, to stop the heating process, $40$h$$ is to be outputted at port address $30$h$.$ In the last stage, the existing valve is to be operated $$OPEN FOR A PREPROGRAMMED TIME$$ to get the processed material by outputting $80$h$$ to the port address $4070$h$.$