Tag: C Programming

  • Let’s recreate a 90’s PC BIOS Boot Screen

    Because why not, it looks simpler than it really is and we’ll get to fall down a rabbit hole trying to draw the Energy Star logo. “Hello World” is one of the most basic programming tasks we do. It’s the equivalent of getting a new car and taking it for a short drive down the…

  • Nostalgic DOS Development Part 1 – FreeDOS, DJGPP, RHIDE and other madness.

    Modern programming is too abstract, let’s get down to basics and do some programming in DOS using C. You can join in too! In this video I explain how to set up 86Box with FreeDOS, and then how to install DJGPP the C compiler and RHIDE the IDE. Then we write some good old C…

  • Nostalgic DOS Development Part 2 – Writing our first programs

    This is part two, go read part 1 first. Last time we set up FreeDOS and installed DJGPP and RHIDE. Now let’s go through how to use them and write some simple programs. I am going to assume you know how to use DOS. If not, all you need to know is how to make…

  • Nostalgic DOS Development – Setting up the machine

    The modern world is far too complex. Software has become piles of APIs stacked on top of each other, running on virtual machines inside browsers. Even the CPUs themselves are too complex for anyone to understand. Let’s ditch all that complicated nonsense and go back to a time when computers were complex enough to be…

  • Tilemap Game Engine Development – Agon Light C Programming

    In this video, I’ll show you how I built a tilemap system from scratch in C for the Agon Light, and integrated it into my existing game engine. Getting the physics engine to handle collisions with the tilemap was no easy task, but I’ll walk you through how I made it work. On top of…

  • Emulation Sucks

    … because it’s so realistic you still have to put up with the same problems you had 30 years ago… Ah yes, that’ll be the problem, something ate the system.ini file, because of course it did, didn’t it There’s some 30 year old muscle memory going on here, if I don’t think I can drive…

  • Writing a game the hard way – from scratch using C – Part 2

    Join me on a journey as I attempt to write a game for my Agon Light using nothing but raw C programming. In this second episode I figure out how to make a very basic 2D rigid body physics system work. It doesn’t matter if you don’t have an Agon Light, I’m bringing you along…

  • Writing a game the hard way – from scratch using C – Part 1

    Join me on a journey as I attempt to write a game for my Agon Light using nothing but raw C programming. In this first episode I figure out what kind of game to make, look at some shareware games of the past and get a basic game engine working, using nothing but C code…

  • Stealing the Secrets of the NES – Agon Light Tilemaps in C

    Early computers weren’t powerful enough to draw full-screen moving graphics, so they had to use clever tricks. Let’s explore how Nintendo’s techniques for creating tile-based games on the NES can be applied to modern hardware. Using these methods, I built a scrolling tilemap system for the Agon Light using C programming.

  • Programming Bitmap Graphics – Agon Light using C

    In this video I look at how you can program the Agon Light to display bitmap images using C. I go through how to convert a PNG image into an RGB2222 format bitmap image, and then use the C library functions to load that into the Agon Light, and the VDP commands necessary to display…