Piex

This is an emulator of famous chip8 system. It is written in C++ as a pet-project. Core of emulator is bundled with opt-in SDL2 implementation or ascii. I want to spport all the quirks and all different versions of chip8. That is the goal, sort of.

Table of Contents

• Implementation
• Build
• Usage
• TODO

Implementation

• Core
• Core/iface

Build

You will need to install SDL2 library to build this project. On Ubuntu you can do it with following command:

sudo apt-get install libsdl2-dev

Then you can build project with cmake:

mkdir build
cd build
cmake .. -DENABLE_SDL=1 # or -DENABLE_SDL=0 for tests-only build
make

Usage

./build/piexapp <sdl|ascii> <ch8|sch|xoch> <path_to_rom>

First argument is platform implementation:

• sdl - use sdl2 implementation
• ascii - use ascii-art implementation, no keyboard support

Second argument is emulation-type:

• ch8 - chip8 type
• sch - superchip type
• xoch - xochip type

Third argument is path to rom file.

TODO

• Add sound implementation in sdl build, currently it is stub with no sound
• Incapsulate quirks logic into core (move video memory to core, change interface to draw only per_pixel)
• Better deal with timers, only "display.wait" left for 100% quirks tests
• Implement the rest of opcodes