A complete runtime environment for gcc
The Small Device C Compiler (SDCC), targeting 8-bit architectures
multi-platform cross assembler for 6502/6510/65816 cpu
Building and running ancient Linux on Windows
BASIC Compiler and Interpreter
Cross compiling environment to DJGPP v1
EMX compiler hosted on Win32
Cygwin cross-compiler for Fedora
Cross compiling environment to DJGPP v2
Homebrew toolchains for wii, gamecube, 3ds, ds, gba, gp32 and psp
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)