Forth

sample

2 + 2

2
2
+
.

result 4

9 % 4

9
4
/mod
.s

result 1 2

square word

: sq dup * ;
2 sq
.s

result 4

hello world

: hw ." hello world" ;
hw

result hello world

links

http://amforth.sourceforge.net/

AmForth, Floating point and ATmega implementation:

• https://www.physics.wisc.edu/~lmaurer/projects/FloatingAway/FloatingAway.html#biblio-31
  • https://web.archive.org/web/20140411013704/https://mywebspace.wisc.edu/lnmaurer/web/FloatingAway/amforth-5.1.tar.gz

Pygmy Forth: http://pygmy.utoh.org/riscy/