#Z80

Writing games is hard enough by itself, requiring a lot of different skills. So how can I make this even harder? How about I do literally everything myself, starting with nothing but a blank source file and write all the code by hand. No game engines or libraries. If I need something, I need to write it myself. And since we’re doing this the hard way, let’s write games for an embedded microcontroller based around a Z80 CPU.

Let’s look at FORTH, the obscure stack based programming language that nobody seems to use. Or do they?

Let’s go right inside a CPU and watch it execute code at the transistor level!

The RC2014 is a DIY Z80 based computer that talks to the outside world using serial comms. This means you need a serial interface to another computer in order to control it.

I use a Raspberry Pi Pico and turn it into a serial terminal for my RC2014.

How clever engineers made a cheap computer powerful

How do you get more than 64K of RAM in an 8 bit computer? Let’s look at how memory banking works!

How to get started programming the ZX Spectrum Next

I found a real bitmap display for the RC2014 and here’s how I made it work.

Writing more optimised assembly to improve the speed of the Conway’s Life algorithm