The original source code of Microsoft GW-BASIC from 1983

An Arduino library that adds one or more joysticks to the list of HID devices an Arduino Leonardo or Arduino Micro can support.

Oberon parser, code model & browser, compiler and IDE with debugger, and an implementation of the Oberon+ programming language

Optimizing Small memory C Compiler Assembler and Runtime for C64

Turbo Rascal Syntax Error full repo

DrawBridge aka Arduino Amiga Floppy Disk Reader/Writer - Hardware and software interface for accessing Amiga disks (read/write ADF and SCP) on non-Amiga hardware

ctools, programs for accessing C64 and C128 CP/M disk images (*.D64).

Encode/Decode PDU strings for use with most GSM modems. Both 7 bit and 16 bit alphabets are supported.

Attack of the Petscii Robots - Sony Playstation Portable source