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# ayyboy | ||
Yet another GameBoy and GameBoy Color emulator! A lot of the information had been figured out by reverse engineering software and hardware, complemented by the Pandocs and various online sources/blogs. | ||
The project is not in a perfect state but I'd consider it ready for use. I would not have been able to kick things off this fast without the amazing help of the people over at the [Emulation Development](https://discord.com/invite/dkmJAes) Discord server. | ||
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Pokemon Red Version (DMG) | Pokemon Gold Version (GBC) | ||
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[](https://github.com/user-attachments/assets/a5213d9e-3bb1-40b6-a951-3e42c957c94a) |  | ||
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## Features | ||
* DMG and GBC support (incl. double speed mode) | ||
* Support for ROM, MBC1, MBC3 and MBC5 (although none of the mappers I'd consder in a 100% functional state) | ||
* Sound (mostly taken from [this blog](https://nightshade256.github.io/2021/03/27/gb-sound-emulation.html) and [this emulator](https://github.com/NightShade256/Argentum)) | ||
* RAM-based save games (RAM is simply written to disk on emulator exit) | ||
* Built-in open-source boot ROMs for [DMG](https://github.com/Hacktix/Bootix) and [GBC](https://github.com/LIJI32/SameBoy/tree/master/BootROMs) | ||
* Scanline based renderer (no pixel FIFO) | ||
* Various debug views | ||
* ZIP file support | ||
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## Testing | ||
* The CPU has been verified against the following tests and passes all of them: | ||
* [SM83 SingleStepTests](https://github.com/SingleStepTests/sm83) | ||
* [cpu_instrs.gb](https://github.com/retrio/gb-test-roms) | ||
* The PPU has been tested with `dmg-acid` and `cgb-acid` and passes both | ||
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