README.md (view raw)
1mGBA
2====
3
4mGBA is an emulator for running Game Boy Advance games. It aims to be faster and more accurate than many existing Game Boy Advance emulators, as well as adding features that other emulators lack. It also supports Game Boy and Game Boy Color games.
5
6Up-to-date news and downloads can be found at [mgba.io](https://mgba.io/).
7
8[](https://travis-ci.org/mgba-emu/mgba)
9
10Features
11--------
12
13- Highly accurate Game Boy Advance hardware support[<sup>[1]</sup>](#missing).
14- Game Boy/Game Boy Color hardware support.
15- Fast emulation. Known to run at full speed even on low end hardware, such as netbooks.
16- Qt and SDL ports for a heavy-weight and a light-weight frontend.
17- Local (same computer) link cable support.
18- Save type detection, even for flash memory size[<sup>[2]</sup>](#flashdetect).
19- Support for cartridges with motion sensors and rumble (only usable with game controllers).
20- Real-time clock support, even without configuration.
21- Solar sensor support for Boktai games.
22- Game Boy Camera and Game Boy Printer support.
23- A built-in BIOS implementation, and ability to load external BIOS files.
24- Turbo/fast-forward support by holding Tab.
25- Rewind by holding Backquote.
26- Frameskip, configurable up to 10.
27- Screenshot support.
28- Cheat code support.
29- 9 savestate slots. Savestates are also viewable as screenshots.
30- Video and GIF recording.
31- Remappable controls for both keyboards and gamepads.
32- Loading from ZIP and 7z files.
33- IPS, UPS and BPS patch support.
34- Game debugging via a command-line interface and GDB remote support, compatible with IDA Pro.
35- Configurable emulation rewinding.
36- Support for loading and exporting GameShark and Action Replay snapshots.
37- Cores available for RetroArch/Libretro and OpenEmu.
38- Many, many smaller things.
39
40#### Game Boy mappers
41
42The following mappers are fully supported:
43
44- MBC1
45- MBC1M
46- MBC2
47- MBC3
48- MBC3+RTC
49- MBC5
50- MBC5+Rumble
51- MBC7
52
53The following mappers are partially supported:
54
55- MBC6
56- Pocket Cam
57- TAMA5
58- HuC-1
59- HuC-3
60
61The following mappers are not currently supported:
62
63- MMM01
64
65### Planned features
66
67- Networked multiplayer link cable support.
68- Dolphin/JOY bus link cable support.
69- M4A audio mixing, for higher quality sound than hardware.
70- Re-recording support for tool-assist runs.
71- Lua support for scripting.
72- A comprehensive debug suite.
73- e-Reader support.
74- Wireless adapter support.
75
76Supported Platforms
77-------------------
78
79- Windows Vista or newer
80- OS X 10.7 (Lion)[<sup>[3]</sup>](#osxver) or newer
81- Linux
82- FreeBSD
83- Nintendo 3DS
84- Wii
85- PlayStation Vita
86
87Other Unix-like platforms, such as OpenBSD, are known to work as well, but are untested and not fully supported.
88
89### System requirements
90
91Requirements are minimal. Any computer that can run Windows Vista or newer should be able to handle emulation. Support for OpenGL 1.1 or newer is also required.
92
93Downloads
94---------
95
96Downloads can be found on the official website, in the [Downloads][downloads] section. The source code can be found on [GitHub][source].
97
98Controls
99--------
100
101Controls are configurable in the settings menu. Many game controllers should be automatically mapped by default. The default keyboard controls are as follows:
102
103- **A**: X
104- **B**: Z
105- **L**: A
106- **R**: S
107- **Start**: Enter
108- **Select**: Backspace
109
110Compiling
111---------
112
113Compiling requires using CMake 2.8.11 or newer. GCC and Clang are both known to work to compile mGBA, but Visual Studio 2013 and older are known not to work. Support for Visual Studio 2015 and newer is coming soon. To use CMake to build on a Unix-based system, the recommended commands are as follows:
114
115 mkdir build
116 cd build
117 cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr ..
118 make
119 sudo make install
120
121This will build and install mGBA into `/usr/bin` and `/usr/lib`. Dependencies that are installed will be automatically detected, and features that are disabled if the dependencies are not found will be shown after running the `cmake` command after warnings about being unable to find them.
122
123If you are on macOS, the steps are a little different. Assuming you are using the homebrew package manager, the recommended commands to obtain the dependencies and build are:
124
125 brew install cmake ffmpeg imagemagick libzip qt5 sdl2 libedit pkg-config
126 mkdir build
127 cd build
128 cmake -DCMAKE_PREFIX_PATH=`brew --prefix qt5` ..
129 make
130
131Note that you should not do a `make install` on macOS, as it will not work properly.
132
133#### Windows developer building
134
135To build on Windows for development, using MSYS2 is recommended. Follow the installation steps found on their [website](https://msys2.github.io). Make sure you're running the 32-bit version ("MSYS2 MinGW 32-bit") (or the 64-bit version "MSYS2 MinGW 64-bit" if you want to build for x86_64) and run this additional command (including the braces) to install the needed dependencies (please note that this involves downloading over 1100MiB of packages, so it will take a long time):
136
137For x86 (32 bit) builds:
138
139 pacman -Sy base-devel git mingw-w64-i686-{cmake,ffmpeg,gcc,gdb,imagemagick,libelf,libepoxy,libzip,pkg-config,qt5,SDL2,ntldd-git}
140
141For x86_64 (64 bit) builds:
142
143 pacman -Sy base-devel git mingw-w64-x86_64-{cmake,ffmpeg,gcc,gdb,imagemagick,libelf,libepoxy,libzip,pkg-config,qt5,SDL2,ntldd-git}
144
145Check out the source code by running this command:
146
147 git clone https://github.com/mgba-emu/mgba.git
148
149Then finally build it by running these commands:
150
151 cd mgba
152 mkdir build
153 cd build
154 cmake .. -G "MSYS Makefiles"
155 make
156
157Please note that this build of mGBA for Windows is not suitable for distribution, due to the scattering of DLLs it needs to run, but is perfect for development. However, if distributing such a build is desired (e.g. for testing on machines that don't have the MSYS2 environment installed), running `cpack -G ZIP` will prepare a zip file with all of the necessary DLLs.
158
159### Dependencies
160
161mGBA has no hard dependencies, however, the following optional dependencies are required for specific features. The features will be disabled if the dependencies can't be found.
162
163- Qt 5: for the GUI frontend. Qt Multimedia or SDL are required for audio.
164- SDL: for a more basic frontend and gamepad support in the Qt frontend. SDL 2 is recommended, but 1.2 is supported.
165- zlib and libpng: for screenshot support and savestate-in-PNG support.
166- libedit: for command-line debugger support.
167- ffmpeg or libav: for video recording.
168- libzip or zlib: for loading ROMs stored in zip files.
169- ImageMagick: for GIF recording.
170- SQLite3: for game databases.
171- libelf: for ELF loading.
172
173SQLite3, libpng, and zlib are included with the emulator, so they do not need to be externally compiled first.
174
175Footnotes
176---------
177
178<a name="missing">[1]</a> Currently missing features are
179
180- OBJ window for modes 3, 4 and 5 ([Bug #5](http://mgba.io/b/5))
181- Mosaic for transformed OBJs ([Bug #9](http://mgba.io/b/9))
182
183<a name="flashdetect">[2]</a> Flash memory size detection does not work in some cases. These can be configured at runtime, but filing a bug is recommended if such a case is encountered.
184
185<a name="osxver">[3]</a> 10.7 is only needed for the Qt port. The SDL port is known to work on 10.5, and may work on older.
186
187[downloads]: http://mgba.io/downloads.html
188[source]: https://github.com/mgba-emu/mgba/
189
190Copyright
191---------
192
193mGBA is Copyright © 2013 – 2018 Jeffrey Pfau. It is distributed under the [Mozilla Public License version 2.0](https://www.mozilla.org/MPL/2.0/). A copy of the license is available in the distributed LICENSE file.
194
195mGBA contains the following third-party libraries:
196
197- [inih](https://github.com/benhoyt/inih), which is copyright © 2009 Ben Hoyt and used under a BSD 3-clause license.
198- [blip-buf](https://code.google.com/archive/p/blip-buf), which is copyright © 2003 – 2009 Shay Green and used under a Lesser GNU Public License.
199- [LZMA SDK](http://www.7-zip.org/sdk.html), which is public domain.
200- [MurmurHash3](https://github.com/aappleby/smhasher) implementation by Austin Appleby, which is public domain.
201- [getopt for MSVC](https://github.com/skandhurkat/Getopt-for-Visual-Studio/), which is public domain.
202- [SQLite3](https://www.sqlite.org), which is public domain.
203
204If you are a game publisher and wish to license mGBA for commercial usage, please email [licensing@mgba.io](mailto:licensing@mgba.io) for more information.