Avocado

A Modern Playstation 1 emulator.

If you have any questions just catch me on Twitter (@JaCzekanski) or create an Issue. There is also Discord server.

Compatibility

See Avocado compatibility list

Changelog

13.03.2019 - merged MDEC (video decoder) support

8.12.2018 - created Compatibility list webapp

19.11.2018 - added .chd file support

9.11.2018 - XA-ADPCM (streaming audio) and Red Book audio support - music should play in most games, SPU samples interpolation (sounds less harsh), Pitch modulation support (used by few games), refactored CDROM reading and cue parsing subsystems, various fixes, hardware (OpenGL) rendering

27.08.2018 - Support for digital controller, DualShock (without vibrations) and mouse. Two controllers are supported (no multitap for now)

19.08.2018 - Memory card support

11.08.2018 - Partial SPU implementation - sound working

Status

Full list: Avocado Builds

Build	Status	Download
Linux		develop
macOS		develop
Android		develop
Windows 64-bit, Visual Studio 2019		develop
Windows 32-bit, Visual Studio 2019		develop
Windows 64-bit, Visual Studio 2017
Windows 32-bit, Visual Studio 2017

Despite this emulator being in early development, some 3D games can run. Game compatibility list

Currently audio is hard synced to NTSC (60Hz) (running PAL games will make audio stutter). The timer implementation does not function properly (games fail to boot or run at wrong speed). Many games won't boot or crash shortly after booting.

Requirements

• OS: Windows 7 or later, macOS 10.13 or later, Linux
• GPU: Graphics card supporting OpenGL 3.2
• CPU: AVX compatible x64 processor or any x86 processor

Notes

Avocado focuses on supporting relatively modern hardware (2010 and forwards) and non-legacy OSes.

Emulator is currently single-threaded - if you have multicore CPU you will not benefit from it. Single thread performance is what really matters.

Currently Avocado requires OpenGL 3.2. In the future this limitation will be lifted for software rendering.

Running

Avocado requires the BIOS from real console in the data/bios directory. Selection of a BIOS rom will be required on the first run. The rom can be changed under Options->BIOS or by modifying the config.json file.

Avocado doesn't support fast booting. UniROM can be used as a work around. Place the .rom file in the data/bios directory and modify config.json:

"extension": "data/bios/unirom_caetlaNTSC_plugin.rom"

Press the Start button (Enter by default) to fastboot, or R2 (keypad *) to slowboot a game. You can run the included Playstation firmware replacement Caetla with the Select button (Right shift) then run the .exe directly from the disk.

To load a .cue/.bin/.img/.chd file just drag and drop it.

Controls

• Space - pause/resume emulation
• F1 - hide GUI
• F2 - soft reset
• Shift-F2 - hard reset
• F7 - single frame
• Tab - disable framelimiting
• Q - toggle full VRAM preview

Configure controls under Options->Controller menu.

Build

Windows

Requirements:

• Visual Studio 2017
• Premake5
• SDL2 dev library

First build:

> git clone https://github.com/JaCzekanski/Avocado.git
> cd Avocado
> git submodule update --init --recursive
> premake5 vs2017

# Open Visual Studio solution and build it

See appveyor.yml in case of problems.

Update:

> git pull && git submodule update --init --recursive
> premake5 vs2017

# Open Visual Studio solution and build it

Linux

Requirements:

• Clang6 or newer
• Premake5

First build:

> sudo apt update
> sudo apt install libsdl2-dev
> git clone https://github.com/JaCzekanski/Avocado.git
> cd Avocado
> git submodule update --init --recursive
> premake5 gmake
> make config=release_x64 -j4

# Running
> ./build/release_x64/avocado

See .travis/linux/build.sh in case of problems.

Update:

> git pull && git submodule update --init --recursive
> premake5 gmake
> make config=release_x64 -j4

macOS

Requirements:

• XCode
• Premake5
• Brew

First build:

> brew update
> brew install sdl2
> git clone https://github.com/JaCzekanski/Avocado.git
> cd Avocado
> git submodule update --init --recursive
> premake5 gmake
> make config=release_x64 -j4

# Running
> ./build/release_x64/avocado.app

See .travis/macos/build.sh in case of problems.

Update:

> git pull && git submodule update --init --recursive
> premake5 gmake
> make config=release_x64 -j4

Bugs

Use GitHub issue tracker to file bugs. Please attach Game ID, screenshots/video, BIOS and build version.

See Game compatibility list before creating a bug issue.