A befunge interpreter written in python
Run with python main.py <filepath>
Definitions of instructions found here
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+Addition: Pop two values a and b, then push the result of a+b -
-Subtraction: Pop two values a and b, then push the result of b-a -
*Multiplication: Pop two values a and b, then push the result of a*b -
/Integer division: Pop two values a and b, then push the result of b/a, rounded down. According to the specifications, if a is zero, ask the user what result they want. -
%Modulo: Pop two values a and b, then push the remainder of the integer division of b/a. -
!Logical NOT: Pop a value. If the value is zero, push 1; otherwise, push zero. - ``` Greater than: Pop two values a and b, then push 1 if b>a, otherwise zero.
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>PC direction right -
<PC direction left -
^PC direction up -
vPC direction down -
?Random PC direction -
_Horizontal IF: pop a value; set direction to right if value=0, set to left otherwise -
|Vertical IF: pop a value; set direction to down if value=0, set to up otherwise -
"Toggle stringmode (push each character's ASCII value all the way up to the next ") -
:Duplicate top stack value -
\Swap top stack values -
$Pop (remove) top stack value and discard -
.Pop top of stack and output as integer -
,Pop top of stack and output as ASCII character -
#Bridge: jump over next command in the current direction of the current PC -
gA "get" call (a way to retrieve data in storage). Pop two values y and x, then push the ASCII value of the character at that position in the program. If (x,y) is out of bounds, push 0 -
pA "put" call (a way to store a value for later use). Pop three values y, x and v, then change the character at the position (x,y) in the program to the character with ASCII value v -
&Get integer from user and push it -
~Get character from user and push it -
@End program -
0 – 9Push corresponding number onto the stack