A suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. It includes the GNU GCC compiler.
Cross compiler for 6502 processors, runs on Linux, Win32; can compile and link programs written in subset of ANSI C, Assembly, 1983 UPL language, or any mix thereof; can output programs for Commodore VIC-20, 64.
List of programming languages targeting the 6502 microprocessor (with an emphasis on Commodore 8-bit computers), which are hosted on another system. A separate list of native Commodore languages is also available.