Write assembly code $($MSP$430)$:

Use periodic interrupts generated by Timer B$0($B zero$)$ to make the green and red LEDs to twinkle in a simple alternating pattern: when the green LED is on the red one should be off and vice versa. For this task, you do not need to implement a state machine. While the LEDs are twinkling, the MCU is in low power mode $($LPM$3).$ The LEDs are turned on and off while serving interrupts generated by Timer B$0,$ you are not allowed to utilize any software generated delay loops. Start by downloading the file Final$\_$Exam$\_$Part$\_1.$asm from Carmen. In that file, I have already configured Timer B$0$ to throw periodic interrupts. You will write an ISR that services these interrupts. Make sure that your ISR does not modify any core registers. The memory address for the Timer B$0$ interrupt vector is $0$xFFF$4.$ The interrupt flag is bit TBIFG in the $16-$bit register TB$0$CTL$.$ Make sure to test and clear the TBIFG bit only $$ DO NOT clear the entire TB$0$CTL register since it holds information that is critical for the correct operation of Timer B$0.$