DIY TTL arcade machine ... in 2018

On the screenshot above, video is being grabbed from real hardware during debug process

It is known for repairing various types of video tape recorders. It’s easy to fix, you’re mastered this art well enough. He also enjoys tinkering with simpler devices, such as old TV sets, 8- and 16-bit home computers, various audio equipment.
')
Alexander is often criticized for restoring existing ones. And it was true until he found this book ...



Its cover says: MA Ovechkin, DIY video games. I’ve been able to find out what I’ve been learning about Radio-86RK. I already knew that. But Kokovin is different, he decided to proceed!

The ATI is a 61 cm (24 in.) CRT arcade machine, it can be used as a guideline. The homemade version is simplified compared to arcade one, designed for four players instead of seven. Otherwise, gameplay is similar. Each player controls a horse, making it jump over obstacles. After the best player crosses the line, it shows,

This is what the console described in the book with the ROMs for the radar sprites. Making it into a retro console "with a twist". He has made a number of ways to reduce the size of the shadows. The result sprites are much more detailed for ROM.

The other improvement is advanced sound subsystem. He built two hardware music players, both also using parallel ROM chips. Sound samples such as horse steps, etc. The Two Pieces Beat Music Of course, samples are short, while beeper chiptune is long, despite using ROMs in both devices. WAV and General MIDI files of the same size as bytes: the latter plays much longer.


Here is the completed music player in operation:


Currently much of the console circuit is built and debugged. Sprites, tracks and obstacles are generated, but the parts are playable. Watch from 116th minute (if you also like stylish monaural phonographs), After finishing the project, Kokovin plans to build a self-contained, one-piece 32 cm (13 inch) CRT arcade machine (of course, without a coin or bill acceptor) using the circuit.


PS This is Hab's second article in English (the first one, by another author, is here ). Hope you enjoyed it.