Write an interrupt driven RISC$-$V MCU program that drives $8$ LEDs. Each time there is an interrupt, the program reads a $4-$bit value from the input port. After reading $16$ values $(16$ interrupts$),$ the program averages those values and outputs the LED pattern corresponding to the average to the LEDs. The LEDs thus represent a visual representation of the average of the value read from the input when each time there was an interrupt. Assume an external device connected to the RISC$-$V MCU generates an interrupt and provides an input value for reading. You must use the provided LUT for this problem. The dark circles in the diagram below represent the $"$on$"$ LEDs. Note the difference in average value and the patter on the LEDs that need to be output.

$$ LED port address $=0$x$1100$C$000$

$$ Input port address $=0$x$11004444$

$$ Don$$t use I$/$O instructions in the interrupt service routine

$$ Minimize the number of instructions in your solution

$.$data # $16$ total values

my$\_$lut: $.$byte $0$x$00,0$x$01,0$x$02,0$x$03,0$x$04,0$x$06,0$x$07,0$x$08,$ #LED output patterns

$.$byte $0$x$0$C$,0$x$0$E$,0$x$0$F$,0$x$10,0$x$18,0$x$1$C$,0$x$1$E$,0$x$1$F