pbForth is (yet another) incarnation of Forth that is designed to work with the LEGO Mindstorms RCX brick as an alternative firmware for the RCX.

The pbForth homepage was originally located at the following URL:

• http://www.hempeldesigngroup.com/lego/pbForth/homePage.html

That website not longer seems to be accessible, and the most recent capture by archive.org may be accessed via the following URL:

• https://web.archive.org/web/20090208201520/http://www.hempeldesigngroup.com:80/lego/pbForth/homePage.html

An emulator for pbForth was also available at one point from the following website; unfortunately, neither the code nor the binaries seem to be available any longer:

• http://www.marioferrari.org/emupbforth/emupbforth.html
• https://web.archive.org/web/20131003162949/http://www.marioferrari.org/emupbforth/emupbforth.html
• http://www.marioferrari.org/lego/lego.html

Notes

• pbForth.srec files exist in both the pbFirmware and pbSource folders. While the file name is the same, these files are different, and it is uncertain which of these pbforth.srec files is actually newer.
• anstest.txt has a slight different between the file under /anstest and the file under /pbSource/anstest