StoneKnifeForth (With a Metacircular Compiler)
&gt;If you want to counter Ken Thompson’s “Trusting Trust” attack, you would want to start with a minimal compiler on a minimal chip; StoneKnifeForth might be a good approach.<p>Some people have been working on fairly good Forths for different, minimal hardware including the Parallax boards.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;prof-braino&#x2F;PropForth5.5" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;prof-braino&#x2F;PropForth5.5</a><p>There&#x27;s also Chuck Moore&#x27;s GreenArrays GA144 if you want a high performance Forth machine which includes a proto area on the board.