This page is my current best guess at the semantics of Ward Cunningham's Biota language. I would welcome corrections. The source is in biota-proto.js
Start by selecting a sample or Show your own program below. Even columns are code and data. Odd columns have control characters: '$' for the program counter, '#' for the data counter.
. . c .
. . s . .
t g
t t
t . t . .$d
t s . .
b . b . s s . 1#2 3 4 5
. s s . b . b
. . s t
u d t t t t
t t
g t
. . s . .
. c . .
g$g
g r
t g
g g
1#. 3 #
ð ð ð ð
ð g g$ð
ð r r ð
ð ð ð ð
*#
data counter direction
[Formatted code will show up here]
Press Run or Step to single step the program and see the counter positions update. The program counter is red and the data counter is green.
ms times