Drawing On DOS

I always found retro games very interesting. Since I grew up playing browser games and most of them were emulated I think it played a big role in defining this interest in me. Anyways, So among all the other platforms DOS (Disk Based Operating System) is one of my favorite. I have recently installed FreeDOS and plan to program on it as hobby. Today, I will explain how you can draw pixels on screen using C as the programming language, FreeDOS as the operating system and Doing by directly writing to VGA (Video Graphics Array). Some Info About VGA VGA (Video Graphics Array) is a video display controller that was first introduced in IBM PS/2 line computers. Generally, The 3h mode also known as Text Mode can be used to print text and is used in Terminal and CLI applications/games to display text. The 13h mode also known as Graphics Mode can be used to plot pixels, draw shapes and images on screen. It is used by 2D/3D games. This blog post will mostly focus on VGA mode 13h . Drawing A Single