Category: commodore

Web Game Jukebox

Wanna see something cool? Bam! Load Commodore Computer Programs Using a Web Browser By RaspberryPioneer in CircuitsComputers By RaspberryPioneer Here’s a cheap and simple way of loading software onto a Commodore 64 or Commodore Vic-20 retro-computer via a web browser, with the help of an Arduino / clone microcontroller. The web browser must support the Web Serial API, which up-to-date versions of Chrome, Edge and Opera all do....

ROM updates & working with EPROMs

The ROM’s in the C64 and the original 1541 models are 24 pin and are not directly pin compatible with burnable 2732 or 2764 EPROMS. In order to upgrade to a newer ROM revision or change the ROM to something else and use either a 2732 (for the character set) or 2764 (for kernal/DOS) EPROM, a socket adapter must be built. See here for detailed instructions on how to build one.

ROM Socket Adapters

Socket adapters are required on the original C64 and 1541 models when replacing the existing 24-pin ROM with a 28-pin EPROM, like a 2764 or larger. They are also needed if you want to replace a 2764 with a larger 27128, a 27128 with a 27256 or a 27256 with a 27512. All of these adapters are covered here.

Microtext 2.6

This is a cool programming “framework” that was adapted for the C64, and was intended to allow programmers and users to easily create and use programs across multiple platforms freely.

C64 ROMs Library

Here is a curated list of known C64 kernal and character ROMs. The list will be updated whenever new information becomes available. Some require additional hardware or mods, some do not. Details are provided wherever possible.

Chip Flipping: Changing the ROMs

When you power up your Commodore computer, there’s a complex dance of things happening to ensure the system is ready to go. Then, the base components needed to present an interface and accept inputs from you are loaded up, before the system finally presents that screen we all know and love. Oh, wait. That’s not the normal one… Let’s try again: Okay, still not...

Customizing The C64 Kernal

When the Commodore 64 was still being sold, its core software -the kernal- was delivered as-is. There was no upgrading or patching (initially) intended. That said, lots of clever folks came up with ways to enhance, extend and replace the kernal after the fact. Today, anybody with access to Amazon/Ali Express and a computer can do it!

TeensyROM //NFC!

A cartridge to LOAD cartridges, for the C64!
Not a drive replacement, but a way to keep and launch your single PRGs and CRT files easily. Adds MIDI and COM capability too!