dozens.forth

dozens.md

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+# Dozens
+
+how many dozens?
+
+## About
+
+This document is a valid literate style retro forth program. You can execute it with `retro dozens.md`, or include it in a file or in the repl with `'dozens.md include`.
+
+## Contents
+
+~~~
+:dozens (n-n) #12 * ;
+~~~
+
+That's it. That's the whole thing.
+
+## Testing
+
+Run the test with `retro -t Dozens.forth`:
+
+```
+'GROSS_CHECK s:put nl
+'12_dozens_should_be_144 s:put nl
+
+#12 dozens
+dup #144 eq? [ 'PASS s:put ] [ 'FAIL s:put ] choose
+sp n:put
+```