MCH2022 Master System emulator

This repo contains a master system emulator for the badge. It doesn't currently have a menu or SD card driver, you have to include a game with the build.

Features

• It runs SEGA Master System games
• CPU runs at 100% speed for all games I've tested
• Frame updates around 60 FPS so transparency effects work
• Audio support
• The border of the screen is the correct overscan color
• Pause button! (select)

TODO

• Load/save emulator state
• Add a menu for settings
• Add a cheat menu
• Add a ROM loader menu
• Add a way to download roms from the internet

How to build

git clone --recursive https://github.com/hpvb/mch2022-esp32-app-sms
cd mch2022-esp32-app-sms
# Add a game as `main/rom.sms`
make

This is based on the https://github.com/badgeteam/mch2022-template-app, you can view the documentation there

Thanks

• The excellent TotalSMS emulator https://github.com/ITotalJustice/TotalSMS
• The generous people in the badge tent for helping me work out the ESP-IDF stuff
• The patient and kind people in the badge.team Telegram
• Sylvain Munaut for the FPGA bitstream to achieve 60FPS
• SEGA? sure why not