Game Boy spelled backwards because that makes about as much sense as my code. A crappy, simple, WIP Game Boy emulator I'm trying to write. I'm not even trying to make this cross platform right now, so don't even attempt to run this on a non Linux computer.
- Full CPU implementation
- Working PPU with rudimentary time traveling for mid-scanline effects
- Sound and ability to save all output to a
.wavfile - Timer
- MBC1, MBC2, MBC3 minus RTC, MBC5 minus rumble, and Wisdom Tree
- Not much else yet. If you were expecting anything I write to be even remotely good/useful, I have some bad news.
- Any modern 64 bit linux distribution (may work on 32 bit but not tested)
cmake,make, SDL2 development libraries, Gtk3 development libraries (fornativefiledialog-extended), and g++ that supports C++20
To compile:
mkdir buildcd buildcmake ..makeRun the executable namedyobemag. If the first argument is not valid, it is treated as the ROM path.
Arguments:
--rom <file>--bootrom <file>Give path to the bootrom. CPU registers will be set to correct values if not given.--system <dmg/gb, cgb/gbc>Specify which system to use. This may affect specific features and starting register values. Defaults to Game Boy Color if supported by ROM.--mbc <none, MBC1, MBC2, MBC3, MMM01, MBC5, MBC6, MBC7, wisdomtree>Override the ROM's MBC. This may have upredictable consequences and shouldn't be used in most circumstances.--sync-to-videoThe emulator normally runs as fast as it needs to generate audio samples. This option will try forcing the emulator and GUI to about 60FPS.--unlock-framerateRun emulator as fast as possible (only works when syncing to video). Using this will cause major audio desync.--log-to-consoleLog values of each CPU register to console after every instruction. WARNING: May drastically slow down emulator. It is recommended to pipe the output into a file.
Example: yobemag Tetris.gb --bootrom bootrom.bin