Tic-Tac-Toe

Created by Dylan Maltos

A basic Tic-Tac-Toe game which has been completely written in NASM assembly.

Project Goals

• Print a tic-tac-toe style game board which updates according to user input for the player moves
• Correctly read user input for player moves
• Implement a win check feature which notifies when the game is over once a player wins, along with announcing the winner
• Implement a bitwise swap feature which correctly swaps between player 0 and player 1 after each players move

How to build and run the program

nasm -f elf64 Tic-Tac-Toe.asm

ld -o Tic-Tac-Toe Tic-Tac-Toe.o

./Tic-Tac-Toe

Program Structure

There are several strings saved to memory under section .data that are used to implement specific functions throughout the game and program. As shown:

create_new_line:
	db 10
create_new_line_size equ $-create_new_line

draw_the_board:
	db "_|_|_", 10
	db "_|_|_", 10
	db "_|_|_", 10, 0
draw_the_board_size equ $-draw_the_board

msg_player:
	db "Player ", 0
msg_player_size equ $-msg_player

player:
	db "0", 0
player_size equ $-player

win:
	db 0

type_integer:
	db "Please enter an integer 0-8: ", 0
type_integer_size equ $-type_integer 

end_the_game_message:
	db "Game over!", 10, 0
end_the_game_message_size equ $-end_the_game_message

winner_msg:
	db " wins the game!", 0
winner_msg_size equ $-winner_msg

Errors to fix

Currently, I need to go over and figure out an error in the wincheck feature. As of right now it will automatically end the game and declare a winner if someone does not place a move in the middle of the Tic-Tac-Toe gameboard for the first move.