A large collection of NES accuracy tests on a single NROM cartridge.

A Hardware-Generated CPU Test Suite for the NEC V20

A Hardware-Generated CPU Test Suite for the Intel 80386

Atari Lynx emulator and debugger for macOS, Windows, Linux, BSD and RetroArch.

A Minesweeper clone for the Nintendo GBA E-Reader

PlayStation 4 emulator for Windows, Linux and macOS written in C++

Fast linear algebra and math library for the Hitachi SuperH4 Processor (used by the Sega Dreamcast).

GimliDS is a C64 Emulator for the DS/DSi/XL/LL (based on FrodoDS). Supports .d64 disk images, .crt cart images and .prg program images. Full speed and reasonable sound on even the oldest DS handhelds.

Data compressor for 8-bit computers and low-end platforms

Protocol decoder for sigrok/pulseview-based logic state analyzers for decoding SCSI data

very low-level YM2203 emulator

GIMP plug-in to read/write SNES / NES / GB / GBA / NGP / MD / etc ROM image, tile and sprite files

Bad Apple!! for WSwan

Multi-system emulator (NES, SNES, GB, GBA, PCE, SMS/GG, WS) for Windows, Linux and macOS

Port of Aunt Flora's Mansion to Game Boy Advance

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

SNES Audio Library

PC Engine / TurboGrafx-16 / SuperGrafx / PCE CD-ROM² emulator and debugger for macOS, Windows, Linux, BSD and RetroArch.

Atari Lynx and Jaguar Macro Assembler

Free open-source compressor for apLib with 5-7% better ratios

SDK for developing with the llvm-mos compiler

Handheld LCD games emulator in Python with PyQt6

Polygon construction library for PC Engine

This is FASTER, a new silky-smooth 2.5D racing game built from the ground up for the Atari STE using modern tools, techniques and knowledge.

EverDrive GBA mini dev sources

Fully documented and annotated source code for Elite on the Commodore 64

Quaesar Amiga Emulator

An attempt to create a Game Boy Advance game using Modern C++