r65emu

Arduino emulation library for 8-bit microcomputers based on 6502, i8080 and z80.

Sample Applications

• Apple-1
• CPM-80
• Space Invaders
• Pacman
• Commodore PET
• Compukit UK101

Configuration for Arduino

If building using the Arduino IDE, r65emu/hw/user.h must be configured correctly.

Currently the only mass-produced board which is supported is the LilyGO TTGO.

Examples are also given for a generic node32s board and a homebrew esp8bit board.

Copy your configuration file to user.h. If the board is also mass-produced, please open a PR to add the new file to the library.

Some emulations require a filesystem image containing programs to be uploaded:

• On esp32, this arduino plugin is required for that
• On esp8266, this arduino plugin should be used
• Alternatively an SD card can be used.

Libraries

Display

Depending on target board, one of:

• My port of Henning Karlsen's UTFT library
• TFT_eSPI
• FabGL

Storage

These are optional if the target board supports it (e.g., esp8266 or esp32 boards):

• Rei Vilo's port of Adafruit/Sparkfun's SD library,
• My port of Phil Stewart's SpiRAM library

Hardware

• A Stellaris Launchpad or ESP8266 board, e.g., WeMOS, or ESP32-based board, e.g., Node32s,
• An SD drive to store programs (for Stellarpad),
• A 23k256 SPI RAM chip (for Stellarpad, optional),
• A supported TFT screen, such as this one,
• A PS/2 keyboard.