Rock-Paper-Scissors Game for ARMv7 DE1-SoC

Overview

This project implements a Rock-Paper-Scissors game on the ARMv7 DE1-SoC platform. The game is played against the machine, with the user making their choice using switches and starting each round with a push button. The machine's choice is determined randomly using a timer value. Scores are displayed on the seven-segment displays, and the game continues until either the user or the machine wins three rounds.

Hardware Setup

• Switches: Used for user input to choose Rock, Paper, or Scissors.
• Push Buttons:
  • Push Button 0: Starts the round.
  • Push Button 1: Proceeds to the next round.
  • Push Button 2: Resets the game.
  • Push Button 3: Restarts the game after a winner is declared.
• Seven-Segment Displays:
  • HEX0: Displays the user's choice.
  • HEX1: Displays the machine's choice.
  • HEX4: Displays the user's score.
  • HEX5: Displays the machine's score.

Memory Map

• Seven-Segment Display Base Addresses:
  • SEG_BASE - 0xFF200020
  • SEG_BASE_2 - 0xFF200030
• Switches Base Address:
  • SWITCH_BASE - 0xFF200040
• Timer Base Address:
  • TIMER_BASE - 0xFFFEC600
  • TIMER_VALUE - 0xFFFEC604
  • TIMER_CONTROL - 0xFFFEC608

Data Section

• RPS: Binary representations of Rock (r), Paper (P), and Scissors (S).
• WINNER: Binary representations for "User wins" and "Machine wins".
• HEXTABLE: Binary representations for digits 0-9 for seven-segment display.
• Score Variables:
  • scoreuser: User's score.
  • scoremachine: Machine's score.
• Choice Variables:
  • user_choice: User's choice.
  • machine_choice: Machine's choice.

Instructions

1. Initialize: Set up the initial display and timer.
2. Main Loop:
   • Read the user's input from switches.
   • Start the round when Push Button 0 is pressed.
   • Generate the machine's choice using the timer value.
   • Display the choices on HEX0 (user) and HEX1 (machine).
   • Decide the winner of the round and update scores.
   • Display updated scores on HEX4 (user) and HEX5 (machine).
   • Check for game winner (first to score 3 wins).
   • Wait for Push Button 1 to proceed to the next round or Push Button 2 to reset.
   • Push Button 3 restarts the game after a winner is declared.

Functions

Initialization

• initialize: Sets up the initial display with zeros.
• initialize_timer: Configures the timer for random choice generation.

User Input

• read_user_input: Reads the user's choice from switches.
• get_timer_value: Uses the timer value to generate the machine's choice.

Display Functions

• display_choices: Displays the user and machine choices on HEX0 and HEX1.
• display_score: Displays the current scores on HEX4 and HEX5.

Game Logic

• decide_winner: Determines the winner of the current round.
• game_winner: Checks if there's a game winner and handles the end of the game.
• wait_for_next_round: Waits for user input to proceed to the next round or reset the game.

Reset and Restart

• reset_handler: Resets the scores and restarts the game.

Build and Run

1. Compile the assembly code and load it onto the ARMv7 DE1-SoC platform.
2. Connect the hardware components (switches, push buttons, and seven-segment displays) as per the memory map.
3. Start the Game:
   • Use switches to select Rock (0), Paper (1), or Scissors (2).
   • Press Push Button 0 to start the round.
   • Observe the choices and scores on the seven-segment displays.
   • Press Push Button 1 to proceed to the next round or Push Button 2 to reset the game.
   • The game will automatically declare a winner after either the user or the machine scores 3 points.
   • Press Push Button 3 to restart the game after a winner is declared.