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r65emu
======
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Arduino emulation library for 8-bit microcomputers based on 6502, i8080 and z80.
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Sample Applications
-------------------
- [Apple-1 ](https://github.com/jscrane/Apple1 )
- [CPM-80 ](https://github.com/jscrane/cpm80 )
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- [Space Invaders ](https://github.com/jscrane/invaders )
- [Pacman ](https://github.com/jscrane/pacman )
- [Commodore PET ](https://github.com/jscrane/PET )
- [Compukit UK101 ](https://github.com/jscrane/UK101 )
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Configuration for Arduino
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--------------
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 ](https://www.tinytronics.nl/shop/en/development-boards/microcontroller-boards/with-wi-fi/lilygo-ttgo-vga32-esp32 ).
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.
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Some emulations require a filesystem image containing programs to be uploaded:
- On esp32, this [arduino plugin ](https://github.com/me-no-dev/arduino-esp32fs-plugin ) is required for that
- On esp8266, this [arduino plugin ](https://github.com/esp8266/arduino-esp8266fs-plugin ) should be used
- Alternatively an SD card can be used.
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Libraries
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---------
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Display
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--------
Depending on target board, one of:
- [My port ](https://github.com/jscrane/UTFT-Energia ) of Henning Karlsen's [UTFT library ](http://www.rinkydinkelectronics.com/library.php?id=51 )
- [TFT_eSPI ](https://github.com/Bodmer/TFT_eSPI )
- [FabGL ](https://github.com/fdivitto/FabGL )
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Storage
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--------
These are optional if the target board supports it (e.g., esp8266 or esp32 boards):
- [Rei Vilo's port ](https://github.com/rei-vilo/SD_TM4C ) of Adafruit/Sparkfun's [SD library ](https://github.com/adafruit/SD ),
- [My port ](https://github.com/jscrane/SpiRAM ) of Phil Stewart's [SpiRAM library ](http://playground.arduino.cc/Main/SpiRAM )
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Input
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------
- [PS2Keyboard ](https://github.com/jscrane/PS2Keyboard )
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Hardware
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---------
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- A [Stellaris Launchpad ](http://www.energia.nu/Guide_StellarisLaunchPad.html ) _or_
ESP8266 board, e.g., [WeMOS ](https://www.wemos.cc/en/latest/d1/d1_mini.html ), _or_
ESP32-based board, e.g., [Node32s ](https://www.esp32.com/viewtopic.php?t=459 ),
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- An SD drive to store programs (for Stellarpad),
- A 23k256 SPI RAM chip (for Stellarpad, optional),
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- A supported TFT screen, such as [this one ](http://forum.stellarisiti.com/topic/626-ssd1289-32-320x240-tft-16bit-parallel-interface-touch-libraries/ ),
- A PS/2 keyboard.
