Skip to content

Senbei64/blink65

Repository files navigation

blink65

Write Arduino-style sketches for VIC-20 and Commodore 64.

blink board

Arduino-style API

This example summarizes the Arduino-style API implemented so far:

void setup(void)
{
    pinMode(LED_BUILTIN, OUTPUT);
}

void loop(void)
{
    digitalWrite(LED_BUILTIN, HIGH);
    delay(1000);
    digitalWrite(LED_BUILTIN, LOW);
    delay(1000);
}

Commodore User Port

1 2 3 4 5 6 7 8 9 10 11 12
GND (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) GND
GND (2) I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 (2) GND
A B C D E F H J K L M N

(1) Pins of the upper row differ significantly between systems. Some of them can be used as additional input or output lines.

(2) Pins B and M of the lower row are available on all systems, but with different constraints.

I/O pins from C to L are connected to one port of a VIA or CIA chip on all systems and can be independently programmed as input or output.

Acknowledgements

This project is inspired by the Arduino programming model and API. The setup() / loop() structure and function naming follow the conventions popularized by the Arduino platform.

Arduino is an open-source project developed by the Arduino team: https://www.arduino.cc/

This project is not affiliated with or endorsed by Arduino.

About

Write Arduino-style sketches with cc65 for VIC-20, PET, and Commodore 64.

Topics

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages