UNIX-like reverse engineering framework and command-line toolset
Simple C compiler
Objeck is a modern object-oriented programming language
The Open On-Chip Debugger
Boot macOS, Windows, and Linux on Mac or PC with UEFI or BIOS firmware
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
The GNU Prolog native compiler
C compiler and dev kit for the z80 with assembly language libraries.
Simple and flexible programming language for applications development
Editor with scripting language, security features & system interfaces.
Machine graph audio engine for computer games
Single header stackful cross-platform coroutine library in pure C
Minimalistic C library for CP/M
Real time preemptive embedded multi-thread kernel
The best library to work with .Net Assemblies in any programming lang.
A "Just Enough Language" compiler targeting the 6502/Z80/6809