This is a port of https://github.com/zid/gameboy to the Espressif ESP32 chip. and this project based on Arduino,and the SPI LCD the low speed.There's a better repo named Espeon(https://github.com/Ryuzaki-MrL/Espeon) used for M5STACK.

You will need:

• A board containg an ESP32 chip and at least 4MB (32Mbit) of SPI flash, plus the tools to program it.
• A backup of a GameBoy ROM game cartridge
• A 320x240 ILI9341 display, controllable by a 4-wire SPI interface. You can find modules with this LCD by looking for '2.2 inch SPI 320 240 ILI9341' on eBay or other shopping sites.
• A GPIO button

LCD:

=====  =======================
Pin    GPIO
=====  =======================
MISO   25
MOSI   23
CLK    19
CS     22
DC     21
RST    18
BCKL   5
=====  =======================

(BCKL = backlight enable)

(Make sure to also wire up the backlight and power pins.)

rename GB ROM to gb.gb

run rom2h.bat

run gameboy.ino

update!