Martin Webb, who developed the OutRun port for Commodore back in the 80's has been chronicling that journey on his professional page and it been a fascinating read. Enjoy!

I made a thing, it shows checksums when you input basic lines. It handles 8 different algorithms (only 6 in the video), and you can change it using a single peek (shown in the help, which you can also access with `SYS 50000`.

The supported modes are:

1. F64Summer (2018, Felix Palmen)
2. 64'er Checksummer V1/V2 (V1 October 1984, Frank Lonczewski)
3. 64'er Checksummer V3
4. COMPUTE! Automatic Proofreader V1 (1983/84), Charles Brannon
5. COMPUTE! New Automatic Proofreader V2/V3 (1986/2026), Philip I. Nelson
6. AHOY! Bug Repellent V2 (1984)
7. AHOY! Bug Repellent V3 (1987)
8. HCM (Home Computer Magazine) Bug-Out V5.5 (1985)
9. RUN Checksum V2 (1988), Bob Kodadek

+ 0 which is just a tiny one I added as a default.

I put it on a `.d64` here: tg-check.d64

Source is on GitHub.

Thankful for any bug reports etc.

Hello, I just found an old box filled with Commodore 64 tapes. Posting here in case any of these are of interest, perhaps collectible or not or missing from people’s collections.

There is a whole load I remember owning that I can’t find, specifically I had dozens of dizzy games. I’m a little annoyed that these weren’t in the box.

Trying to identify an extremely obscure C64 game

I'm trying to identify a Commodore 64 game I played sometime around the early-to-mid 1980s, although the date may be off. It was probably on one of the many traded/copied floppy disks I had, so it may have been an obscure European game, magazine program, demo, or something that wasn't widely released in the U.S.

What I remember:

It was more of a puzzle/experimental game than a conventional action game.

The basic mechanic involved connecting dots/areas or otherwise completing boxes/squares.

When you completed a box, something appeared inside that completed box.

What appeared was an animated pair of lips/mouth.

The lips were suggestively kissing toward the player. There was no nudity that I remember; it was more surreal/cheeky than explicitly adult.

As I continued completing boxes, more of these animated lips appeared.

Eventually the screen was essentially filled with completed boxes, each containing the animated lips.

I don't remember enemies being an important part of the game, and I don't remember an obvious objective beyond figuring out the puzzle/mechanic and continuing to complete the boxes.

The whole thing felt very strange, surreal and avant-garde, almost like an experimental program rather than a normal commercial game.

Drelbs came very close when I watched it because the box-completion mechanic felt like the same general idea, but it definitely wasn't Drelbs—the graphics/visuals were different.

I've also ruled out Java Jim, Zoom!, Kid Grid, Hooper, Super Gridder, and China Miner based on the gameplay or visuals.

The strongest memory is:

Complete a box → animated kissing lips appear inside it → complete another → more lips → eventually the whole screen is filled with them.

Does this ring a bell for anyone? I'm beginning to suspect it may have been an obscure European/magazine/traded-disk title rather than a well-known commercial game.

Opening "get ready" tune followed by 60 seconds game round tune (NTSC). Dunno what the dev is doing - maybe I should kick his ass into gear. I didn't write this for fun - actually I did lol. Took a whole three hours out of my time. 🤣

Still going for 24k, one of these days...

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#C64 #Commodore64Ultimate

I'm curious if I'm doing something wrong. I have the 1.1.0 firmware. I have my mouse plugged in and the light is on. I can use the buttons to navigate through the C64 Ultimate menu. But when I boot up Geos, the cursor never moves. If I go to the joypad section, it says WASD Port 1 and it's darkened so I can't change it. Curious if I'm doing something wrong. Hitting C= I on the keyboard doesn't help unfortunately

Edit: I was able to get it working. I believe it was a combination of two issues. One, I was foolish and didn't read the ReadMe correctly so I was enabling the keys to mouse config. But the second issue is that my C64U had a bug where I wasn't able to change the joystick emulation. It was greyed out and stuck on WASD Port 1. I reached out to Commodore support after finding out that this is a bug with newer models of the C64U. They sent me a patch file to install which resolved the issue. After that was done, the mouse now works correctly

The Ultimate mega threads seem to be dead, so I hope it is okay to post this here.

I recently lucked out with a nice CRT+DVD combo at the local goodwill. I was using it yesterday afternoon with my Ultimate, but that evening the composite video out didn't output a signal anymore.

Audio, over the same port and HDMI output are still working fine.

Before I contact Commodore about this, has anyone here had this problem, or know what it could be? I measured the contacts of the video port for continuity and that checks out fine. The cable works fine with an original machine.

I can't find my YC cable, so I'm unable to check if that signal still works.

I know it would not be possible in C64 emulation mode, but perhaps is there a software that can play mods on the device?

Additionally if anyone knows where I can get my hands on a video chip, that would be greatly appreciated. Mine appears to be dead.

My first c64 I noticed these look bent- is that a normal issue?

Just seeing if anyone's experienced something similar on a breadbin.

• Known good power readings on multiple test points and Ray Carlsen PSU.
• VIC-II/Monitor sync and lock. Testing with a 1902A.
• Black screen on boot. Black screen on DesTestKernal v 0.4, including with SID, BASIC, Character, and Kernal ROMs pulled (DesTestKernal substitutes itself for the Kernal and will work with U4 pulled). Same behavior with DesTestMax ROM used as Kernal.
• Known good PLA, VIC-II, and 6510.
• Known good clock signals MHz going into 6510.
• Known good /GAME and /EXROM activity on expansion port.
• I threw a PLAnkton in U17 just for fun. On two out of ten boots, I briefly got a couple lines of rainbow gibberish and was able to trigger the Ultimate II+L's menu button (full screen gibberish). Can't seem to repeat it. Maybe it's a bad PLA socket or cold joints.

So the 6510 isn't even able to draw the borders. The failure has to be happening very, very early in the chain, but this is maddening. I've just learned to use my oscilloscope and was testing it out on this unit (in conjunction with a good C64 to compare, for the clock signals). The work quickly compounds, though. I'm hesitant to go down the eternal path of checking all the data and address lines vs. the good C64 and trying to trace some deviation up the chain, but I'm running out of ideas...

I find it difficult to believe that Perifractic will release a C128U, the main difficulty being copying the layout of the C128 (keyboard + peripherals), and the C128 also has fewer enthusiasts.

So I was wondering if it's feasible to reprogram the C64U's FPGA to have a 128 mode. Of course, there would be some losses: missing ports and missing keys (like the 40/80 column), although the latter could be addressed with a workaround using a menu screen.

Can you imagine booting your C64U and typing GO128?

Does the Sidekick64 need any software other than the files downloaded from github? Should it work with only github files, just configure it?

https://github.com/frntc/Sidekick64

Latest engine devlog video of the C64 Polychrome Raycast Gfx engine. This is the start of various upgrades, this one specifically scalable PETSCII textures in C64 polychrome.

Full video comparing some other notable C64 raycast engines against the dynamic colouring and multiple object effects of the unoptimized C64 Polychrome game engine :
https://www.youtube.com/watch?v=6i6nDfirXUY

Hi guys just wanted to let you know I just released version v0.9.3 of the CLI. I have added some SKILLS for AI coding Harnesses but more important I have added the first version of a C64 Ultimate wedge allowing you to interact directly with the C64 Ultimate file system from the READY Prompt. If you want to know more about it, have a look at the Github Repository. I tested the wedge with Standard Kernal and JiffyDOS. Have fun!

Got these out of a bundle of commodore items pulled from a storage unit. All power on but none read discs. Cleaned heads and confirmed spin but still nothing. Already have a working 1541 for my setup and no real desire to diagnose these further. Feels criminal to send to e-waste. My local maker space already declined. Selling for parts on eBay looks like a pain. Perhaps I just fight against my pack rat tendencies and let these go?

EDIT: posted this last night and been busy with work all day. I appreciate the helpful thoughts and suggestions. To answer some of the questions; all the drives power and spin but nothing happens when I try to load, just keeps going infinitely. I have not tried an alignment or replaced any chips. I am in Eugene, Oregon. Would be fine selling them (not trying to break any rules here just would rather see them go to people who want them) but feel like shipping cost would be a nightmare.