PropForth 5.0 is available for use on the Parallax Propeller. As the PropForth crew explains, “It is an interactive development and run time system. You can communicate with PropForth using a standard serial port, or via ethernet and telnet depending on the capabilities of the system you are using. It has a rich set of words which allow you to quickly and easily manipulate the hardware interactively. It is easy to program new words and use them in addition to the native set of words. Where necessary, you can write new words in assembler code for fast execution.
It is based on the Forth programming language, but it has been tuned for the Propeller architecture and parallel execution. PropForth does not prevent or protect you from manipulating the Propeller however you like. While it can be simple to use, it is also very powerful.”
Code downloads and other docs are available from Google Code.
Via the Parallax forum.