Needs to be in PLP 5.2

text version:

CSE 230 Project 2: LED Pattern Generator Learning Objectives: ? Use PLP branch instructions ? Read from a memory mapped I/O device The Task: Write a program in PLP assembly that repeatedly reads the value of the switches (address: 0xf0100000) and displays a pattern on the LED array based on what switches. Each time the switch value is read, the pattern should be displayed regardless of whether the switch value has changed or not since the last time it was read. The table below indicates the pattern that should be displayed for each possible switch setting: Switch Number Hexadecimal Switch Value Binary Switch Value LED Pattern 0 0x00000001 0b00000001 Turn all 8 LEDs on and then off

1 0x00000002 0b00000010 Turn all even numbered LEDs on and then off

2 0x00000004 0b00000100 Turn all odd numbered LEDs on and then off

3 0x00000008 0b00001000 Cycle through all 8 LEDs in order with only one LED

on at a time (a marquee) Other Other Other All LEDs off

Hint: Logical shifts are not required to complete this project, but they should make your program shorter and more readable than hard coding every value to be written to the LEDs. Shifts can also be helpful when determining the switch value.

The Task: Write a program in PLP assembly that repeatedly reads the value of the switches (address: 0xf0100000) and displays a pattern on the LED array based on what switches. Each time the switch value is read, the pattern should be displayed regardless of whether the switch value has changed or not since the last time it was read The table below indicates the pattern that should be displayed for each possible switch setting Hexadecima Binary Switch Switch Value 0x00000001 0b00000001 Turn all 8 LEDs on and then off 0x000000020b00000010 Turn all even numbered LEDs on and Switch LED Pattern Number Value then off 0x00000004 0b00000100 Turn all odd numbered LEDs on and then 0x000000080b00001000Cycle through all 8 LEDs in order with only one LED on at a time (a marquee) Other Other Other All LEDs off Hint: Logical shifts are not required to complete this project, but they should make your program shorter and more readable than hard coding every value to be written to the LEDs. Shifts can also be helpful when determining the switch value The Task: Write a program in PLP assembly that repeatedly reads the value of the switches (address: 0xf0100000) and displays a pattern on the LED array based on what switches. Each time the switch value is read, the pattern should be displayed regardless of whether the switch value has changed or not since the last time it was read The table below indicates the pattern that should be displayed for each possible switch setting Hexadecima Binary Switch Switch Value 0x00000001 0b00000001 Turn all 8 LEDs on and then off 0x000000020b00000010 Turn all even numbered LEDs on and Switch LED Pattern Number Value then off 0x00000004 0b00000100 Turn all odd numbered LEDs on and then 0x000000080b00001000Cycle through all 8 LEDs in order with only one LED on at a time (a marquee) Other Other Other All LEDs off Hint: Logical shifts are not required to complete this project, but they should make your program shorter and more readable than hard coding every value to be written to the LEDs. Shifts can also be helpful when determining the switch value