gBoy

Gameboy emulator, written in native Java, built using maven. The goal was to test my reverse engineering skills, software engineering skills and to push Java.

Building and running :hammer:

Build with maven command:

mvn clean compile package

The runnable jar will be in the directory /target

Ran by double-clicking or with command:

java -jar gboy-1.0-SNAPSHOT.jar

Features :thumbsup:

• Full GMB emulation
• Fully implemented Z80 instruction set
• Fully implemented GMB LCD
• Cartridge mappers MBC1, MBC3, and MBC5
• Semi implemented serial cable
• GUI and file opener

Joypad :video_game:

Original	Keyboard
Down	Down Key
Up	Up Key
Left	Left Key
Right	Right Key
Start	Z
Select	X
B	A
A	S
L	Start, Select, B, A

Todo :date:

• Implement sound
• Check CPU cycle accuracy
• Implement all cartridge save mappers
• Fix game edge cases
• Implement CGB

Screenshots :camera:

Resources :book:

• https://www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080&extn=.pdf - Z80 CPU Manual
• http://pastraiser.com/cpu/gameboy/gameboy_opcodes.html - GameBoy Opcode Documentation
• http://www.myquest.nl/z80undocumented/z80cpu_um.pdf - Z80 Documentation
• http://gameboy.mongenel.com/dmg/opcodes.html - GameBoy Opcode Documentation
• https://gbdev.gg8.se/files/roms/blargg-gb-tests/ - Blargg Test Roms
• http://bgb.bircd.org/pandocs.htm - GameBoy Documents
• http://www.codeslinger.co.uk - GameBoy Emulator Tutorial
• http://marc.rawer.de/Gameboy/Docs/GBCPUman.pdf - GameBoy Documentation