It’s BASIC Week on Reddit/r/RetroBattlestations and I ported the BASIC Week program “Under the Sea” to the Commodore 64. The original code was written by FozzTexx for the IBM PC which allows for variable names longer than two characters. The Commodore 64 BASIC version 2 would probably still work using the longer names, it would […]
Category Archives: Commodore 64
3D Visualization on the Commodore 1520
NOTE! Split gears causing plot errors? New replacement Alps gears for the Commodore 1520, Atari 1020, etc are now available! Click here to order your set. Recently on the Lemon64 forum, user Rizthomas posted some excellent scans of some plots that he did on a Commodore 1520 Printer/Plotter back in 1986. The plots were well […]
DIY RS-232 Interface for Commodore C64 for under $15
If you have a Commodore 64, chances are you’ll eventually need to connect a modem or other serial device to it. You’ll find that’s not quite that easy since the C64 doesn’t have a standard RS-232 serial port. What it does have is called the “user port” and it can do serial over this port […]
How to get software to disk for your Commodore 64
It’s a question that pops up from time to time on forums from Lemon64 to Reddit C64. “Yes! I just got a Commodore 64!! Now how do I get disk images onto disk so I can do something?” It’s not straight forward. Folks in the Apple II world have a fantastic program called ADTPro that […]
Reddit r/retrobattlestations Commodore 64 Port
For the next two weeks, it’s BASIC Week 2 at Reddit r/retrobattlestations. You can participate with your Commodore 64 or at least play along with your favorite emulator. I’ve ported the code to the C64 and you can get the code from the thread on Reddit. Or you can download the D64 image here to […]
DIY C64 Diagnostic and Dead Test Carts
If you’ve ever attempted to repair a dead Commodore 64 beadbin, you know how frustrating it can be. You’re lucky if the machine turns on and shows something on the screen. This at least gives you some clues as to the problem. However, more often and not, you’re stuck with a blank screen. It doesn’t […]
DIY Cynthcart for Commodore 64
I’ve wanted to create my own cartridges for the C64 for a while now. I have a few old Commodore cartridge games like Clowns and Kickman that would better serve me as, say, a diagnostic cartridge or Cynthcart. These boards are ASSY 326173-01 and seem to be common so you should be able to pick […]
C64 USB Keyboard works with iPad
Just a follow up to the C64 USB keyboard Arduino project that I made last week. I was curious if it would work on the iPad using the iPad Camera Connection kit. So I tried it out and was greeted with the error “Cannot Use Device” and “The connected USB device is not supported.” I […]
Commodore 64 Keyboard Gets The USB Treatment Thanks to Arduino
Recently I’ve been repairing a batch of broken Commodore 64’s that I scored on eBay for cheap. Out of the repairs, two boards were beyond hope but still had some usable parts on them so motherboards became donor boards. That left me with a couple empty cases and keyboards so I decided to make a […]
Converting standard joysticks to wireless infrared for Amiga CDTV and Chameleon 64
The Chameleon 64 is a great cartridge. With each release of the firmware, new features are being unlocked. Recently, the Minimig core was ported to the Chameleon 64 which means you can now have a fully emulated Amiga that fits in the palm of your hand. To play games using a joystick, you need a […]