README.md

Tic-Tac-ARM64

Tic-Tac-Toe written in ARM 64-bit assembly (AArch64).

Runtime Requirements

• POSIX compatible (tested on Ubuntu and Android)
• ARMv8-A hardware or emulation
• stdin/stdout
• No libc dependency
• System calls used: read(), write(), exit()

Cross-compiling from Ubuntu x86-64

Dependencies:

$ sudo apt install gcc-aarch64-linux-gnu

# Emulation:
$ sudo apt install qemu-aarch64

Compiling & Running:

$ make
./tictac_arm64  # qemu-aarch64: runs without a dedicated VM

Running on Android

No root required:

adb push tictac_arm64 /sdcard
adb shell cp /sdcard/tictac_arm64 /data/local/tmp
adb shell chmod +x /data/local/tmp/tictac_arm64
adb shell /data/local/tmp/tictac_arm64

Match example

### Tic-Tac-ARM64 ###
Coordinates:

1 2 3
4 5 6
7 8 9

Make a move (1-9): 1
X - - 
- - - 
- - - 

Make a move (1-9): 1
>>> Invalid move, try again.

Make a move (1-9): 2
X O - 
- - - 
- - - 

Make a move (1-9): 3
X O X 
- - - 
- - - 

Make a move (1-9): 4
X O X 
O - - 
- - - 

Make a move (1-9): 5
X O X 
O X - 
- - - 

Make a move (1-9): 6
X O X 
O X O 
- - - 

Make a move (1-9): 7
X O X 
O X O 
X - - 

>>> Victory by X