The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes

Fully documented and annotated source code for Elite on the Nintendo Entertainment System (NES)

Small, discreet, complete samples for the SEGA Mega Drive/Genesis in 68000 assembly

Phantasy Star Retranslation Project

A short casual adventure game for the Sega Genesis written in 68000 assembly

2.5D BSP/Portal renderer for Sega Genesis/Megadrive.

Random Z80 stuff

Debugger/error screen for Sega Genesis

C API for Vortex Tracker II Player

Sega Mega Drive music player, written in 68k and able to support any number of sound drivers simultaneously! Also able to support up to 64 thousand music files through bank switching. Any additiona…

YM2612 live controller

BASIC source code for Rebelstar Raiders, a 1984 ZX Spectrum game