My first computer was an 8080 which I wire wrapped from an article in Radio Electronics around 1978. I purchased the chip set from them. I have a picture of version 2 of it in my galley.

It had 256 characters of storage. I programmed it in machine language. The stack started at the top of the 256 characters and the program started at the bottom. When they meet in the middle it was program over.

I programmed a Star Wars X-wing in characters on the screen and could make it chase down a target, but when I added the fire code it blew up.