For those whose interest was piqued by the mention of Forth, it appears the PDF link to the tForth documentation on this page is wrong; the correct link is here

For those whose interest was piqued by the mention of Forth, it appears the PDF link to the tForth documentation on this page is wrong; the correct link is here: http://www.canoncat.net/cat/Cat%20tForth%20Documentation.pdf http://www.canoncat.net/cat/Cat%20tForth%20Documentation.pdf