20. Use the P 3 computer from Chapter 8 to implement a microcontroller to control the robot...

20. Use the μP 3 computer from Chapter 8 to implement a microcontroller to control the robot instead of a custom state machine. Write a μP 3 assembly language program to solve one of the previous problems. Interface a time-delay timer, the sensors, and the motor speed control unit to the μP 3 computer using I/O ports as suggested in problem 8.6. The additional machine instructions suggested in the exercises in Chapter 8 would also be useful.