Awesome

DawnGB

DawnGB is GameBoy Color emulator written in Go.

You can play on web!

Screenshots

Desktop

<img width="300" alt="prism" src="https://gyazo.com/82888eedb9501fb6a7c83c2b76f1fe8a.webp" /> <img width="300" alt="megaman" src="https://gyazo.com/6a65b22547c7cddeb07a77ad5400afc4.webp" /> <img width="300" alt="shantae" src="https://gyazo.com/d0293d5fc976614a0322f44b3e6c8130.webp" /> <img width="300" alt="pokered" src="https://gyazo.com/043aa023624a1da45f6e8487cf33143d.webp" />

Browser(Web)

<img width="28.5%" height="20%" src="https://gyazo.com/3bf894c527bdd932aab37e0c82f67091.webp" />    <img width="62%" src="https://gyazo.com/9e773470f1db70aad0098e6d98187e4f.webp" />

Features

• GB(DMG) and GBC(CGB) support
• MBC1, MBC3, MBC5, MBC30 support
• Sound(APU) support
• Libretro support(run make libretro)
• Multiplatform support
• Work on Browser(here)

Usage

• Desktop: Run go run ./src/ebi and drag and drop a ROM file into the window.
• Browser: Visit here.

Key mapping is as follows:

• A: X
• B: Z
• Start: Enter
• Select: Backspace
• ↑ ↓ ← →: Arrow keys

Internal

.
├── core  # Emulator core
├── src   # Frontend
└── util  # Utility (should be renamed to "internal" in the future)

Accuracy

Keep the code as simple as possible, so synchronization is done at each instruction, and line-rendering is done at once on HBlank.

So game like "Prehistorik Man", which modifies the PPU registers during mid-frame, may not draw correctly.