Tools for working with monochrome bitmap fonts

Doom port for DOS, optimized to be as fast as possible!

An IBM PC/XT emulator written in Rust.

IMG2ANS converts pixels into textmode art using ANSI codes

A VGA ROM font editor & library for QB64-PE

A full reverse engineer of Choplifter, the Apple II game written by Dan Gorlin

Terrain rendering algorithm in less than 20 lines of code

DOS utilities by Vernon D. Buerg.

mKEYB is a minimum keyboard driver for xxDOS, requiring only ~500 bytes of memory to support international keyboards

Reversed engineered game Starflight (1986)

Modern ANSI & ASCII Art Editor with custom font support, forked from https://github.com/blocktronics/moebius

Hardware assisted scrolling using a tile based virtual map and sprites on IBM PC with CGA.

Precalculates free disk space on FAT16 filesystems fast