Passing blargg's instruction timing tests.However, it will play games like Prehistorik Man more accurately than the scanline renderer would since that game relies on a cycle-accurate PPU implementation. The current FIFO implementation should work identically to the scanline renderer with the exception that it does not render sprites on column 0 of the LCD. To enable the experimental FIFO renderer (as opposed to the scanline renderer), you can run the emulator with the -fifo flag. The default keybindings are tuned for my personal preferences. Keybindings are completely configurable through the UI, so you can set them to however you're most comfortable. If you want greater accuracy, it'd be good to get your hands on an official copy of the BIOS or dump it from your GBA/DS/3DS yourself. Both of these BIOSes should be compatible in most cases, although the official BIOS will always be the most accurate. Like Normatt's replacement BIOS, this BIOS aims to implement much of the functionality of the official GBA BIOS. If you omit the GBC BIOS for a GB game, it will select a default 4-color palette that will not be the one typically set by the GBC BIOS.Ĭurrently, I ship the emulator with the Cult of GBA BIOS created by Fleroviux and DenSinH for your convenience. If you'd rather launch a specific rom directly, you can pass it as a command-line argument along with an optional bios, like bin/crab /path/to/bios /path/to/rom. Running the emulator is as simple as running the crab executable generated under the bin directory. Of course, the assumption is also that you have the Crystal compiler installed.Īfter cloning the repository, all you'll need to do is run shards build -release to build the emulator in release mode. If you're on Mac, I believe you'll also need to install cmake, although I can't confirm. It is available on every major package manager. SDL2 is the only library you should need to install. The Game Boy Advance work would not be possible without GBATEK, Tonc, mGBA, or the wonderful emudev community. The Game Boy and Game Boy Color work would not be possible without the Pan Docs, izik's opcode table, the gbz80 opcode reference, The Cycle-Accurate Game Boy Docs, or gekkio's Game Boy: Complete Technical Reference. The one downside here is the longer build time thanks to Crystal's slow compilation in release mode. The Game Boy and Game Boy Color emulator come from my CryBoy project, which has been ported into this codebase to reduce common logic and bugs between the two. Game Boy and Game Boy Color emulation are very accurate, while Game Boy Advance is considered playable in many games.

Crab is a Game Boy, Game Boy Color, and Game Boy Advance emulator written in Crystal.

Working mac game boy advance emulator