Light_Move_Control:

Your task is to create a moving light effect by controlling all LEDs and letting only two active (on) LEDs move one from left-to-right and one from right-to-left continuously (that is, the displayed bit patterns will cycle as $81, $42, $24, $18, $18, $24, $42, $81, $00,....). The speed of the moving-light effect will be controlled by pressing one of the buttons on Port B 0-4 with the following functionality.

• BUTTON0: Turn off all the LEDs and stay in the off state until a new button is pressed.
• BUTTON1: Moving light effect at a slow rate (~1 Hz for led-to-led move), and stays at the same move rate until a new button is pressed.
• BUTTON2: Moving light effect at a faster rate (~3 Hz), and stays at the same move rate until a new button is pressed.
• BUTTON3: Moving light effect at a much faster rate (~6 Hz), and stays at the same move rate until a new button is pressed.
• BUTTON4: The moving-light effect splits the active LEDs with the cycling direction first from left-to-right, then from right-to-left ($80, $40, $20, $08, $04, $02, $01, $00, $01, $02, $04, $08, $10, $20, $40, $80, $00, ....) and preserves the previous move rate until a new button is pressed.

Procedure:

1. Create a new project named last-name_lab1_task1
2. You may copy and paste the content of the "lab0.asm".
3. Do your modifications on the source code. Assemble. Debug as necessary.
4. Compute your coding resources, including program size in memory (bytes), needed data memory size (bytes), and number of registers in use. Please report them in the text box below.
5. Ensure you demo the functionality to the instructor.
6. Submit your task1 .asm code from the following file upload interface.