You only need the simplefunge.rb file unless you have an explicit reason to want the legacy haskell version.

• < = move cursor left until a direction change command is encountered

• > = move cursor right until a direction change command is encountered

• ^ = move cursor up until a direction change command is encountered

• v = move cursor down until a direction change command is encountered

• H = move cursor right if top of stack is >0 or left otherwise

• V = move cursor up if top of stack is >0 or down otherwise

• I = input character

note: characters get converted to integers on the stack

note: this is standard style, it just takes the latest char of all the input to the program

• i = input integer

• O = output character

• o = output integer

• # = output stack for debugging purposes

• n = output newline

• 0-9 = push number to top of stack

• + = add numbers on top of stack

• - = subtract numbers on top of stack, going backwards, as in "top - second to top"

• * = multiply numbers on top of stack

• / = divide numbers on top of stack, going backwards, as in "top / second to top", and places the result on the stack with the top being "divisor", then the next being "remainder"

• ` = pop top of stack

• ! = duplicate top of stack

• & = switch the top two values on the stack

• | = pop the top of the stack, then move the value from that index to the top - not counting the popped element

• . = pop the top of the stack, then move the next top value to that index - not counting the popped element

note: the top of the stack is index 0

• (space) = continue direction of cursor

• @ = end of program