This month’s program is a bit of a departure. It is a take on the classic "Wolf, Goat, Cabbage" puzzle. The twist is, I didn’t write this one. Instead, I decided to update it to make the interface a bit easier to use. Let’s dive into the code.
Castle Quest Was My Late-Night ZX81 Adventure with AI
With little time lately, I decided to explore some Generative AI ideas to flesh out new concepts. I’ve dabbled in vibe coding for some time now and thought I’d see how the models would do with adventure-style games. One of the results of that was Castle Quest, a small text adventure for the ZX81.
A New Take on the Infinite Maze for the ZX81
After updating my print scroll routine, I started thinking about how I could use it to create a different version of my infinite maze program. The original used graphic characters and spaces since the ZX81 lacked a backslash. This new version takes a different approach, using alternate graphics to build a more visually interesting maze while leveraging a better machine scrolling routine.
Making Time for a Little Life on the ZX81
I’d read about and studied cellular automata but had never programmed any simulations for them. Conway’s Game of Life is the go-to simulation and something others had already implemented on the ZX81, even when I was a kid. I finally got around to typing in some of those programs but found them slow. My version aims to correct that.
A Present On The ZX81 For VC3 2024
Another year and another Vintage Computing Christmas Challenge (VC3 for 2024). I rushed a bit to get mine in so I do feel it wasn’t as short as possible. I did take a somewhat unique route to solving the problem which makes the build more interesting. I made an auto-run version for Present so you could see it in action.
Turning Hello World into a Creative ZX81 BASIC Program
The year is almost over and time to close out the year with a short program. Watching some videos on character displays in UNIX, I was inspired to create my own version of Hello World. This version scrolls through a stream of random digits until the message is displayed. How fun is that?
Celebrating 40 Years of Dune (1984)
Today marks the 40th anniversary of the 1984 Dune movie, a film that still holds a special place in my heart. Don’t get me wrong—I thoroughly enjoy Denis Villeneuve’s stunning adaptations, and I admire how he’s brought Frank Herbert’s world to life for a new generation. But for me, the original remains unique. It’s tied to so many of my childhood memories and the passions I cultivated during those years.
Making a better Mandelbrot Set on the ZX81 using High Resolution Graphics
One thing I hadn’t done before on the ZX81 was hires graphics. There are numerous reasons, but in general it was because I hadn’t tried. That changed after being encouraged in my ZX81 group to use with with Mandelbrot Set program. So I did.
Print Like a Pro on the ZX81 with This Updated Smooth Scroll Routine
After wrapping up the last print scroll routine, I immediately dove into improving it. While functional, the original version felt a bit limited. With this update, you’ll find more flexibility in printing displays, though at a slight cost to speed.
Living Dangerously With Math by Running the Collatz Conjecture on the ZX81
As plans go, I actually have a few programs teed up to share. Many are smaller programs that I could work on here and there. Occasionally, I run across an idea that upends those plans and I end up going another direction. So, here we are in September with a math program for the Collatz Conjecture.