The Small Device C Compiler (SDCC), targeting 8-bit architectures
Binary executable decompiler
Cross compiling environment to DJGPP v1
Full Pascal and Assembly language tool chain for Texas Instrument TI-
MinGW GCC cross development environment for Power PC.
Oberon family of languages to C translator for ARM, x64 and x86 archit
ATasm is a 6502 command-line cross-assembler.
Ada cross compiler and libraries for AVR µCs
A C Compiler/Editor for Retro 6809 Machines (Colour Computer/Dragon)
Embed C++ in Python source code, dynamically compile and access data
C/C++ Compiler for the ActionScript Virtual Machine (AVM2)
Dual-target (32 & 64-bit) MinGW-W64 compilers for 32 & 64-bit Windows
Ada compiler support for TI MSP430 processors