Befunge-93 Interpreter in JavaScript

Befunge-93 Interpreter

Samples:

world!

"!dlrow olleH">:#,_@

copies itself to output

:0g,:93+`#@_1+

number between 1..32

1248::+1> #+?\# _.@

of Eratosthenes

2>:3g" "-!v\  g30          <
 |!`"O":+1_:.:03p>03g+:"O"`|
 @               ^  p3\" ":<
2 234567890123456789012345678901234567890123456789012345678901234567890123456789

Many other examples here. JavaScript interpreter source here.

or times ms

Input
Stack
Output:

Caveats

Code may not line up correctly if modifed with the put (p) instruction.
The code torus is only as large as the initial program. Insert more lines or trailing space if data will be put beyond the end of code.
Width is one more than you would expect, due to terminal newlines.
When using the Run button, you cannot interrupt an infinite loop.
Tested against the Befunge-93 portion of the Mycology test suite.
Tested in Safari 7, FireFox, and IE 6

"om.cerstrkui@qnoia"> :#v_@
                    ^,,\<

Befunge-93 Interpreter

Caveats

Last Modified: 2015.07.02