Styök language interpreter

Stack? No, Styök!

Available instructions

• PUSH – push the value on stack
• POP – pop the value out of stack
• SWAP – swap the last two values
• DUP – duplicate the last value
• IADD – sum the last two values
• ISUB – sum the last two values
• IMUL – sum the last two values
• IDIV – sum the last two values
• INEG – negate the last value
• IREAD – read from the console input
• IPRINT – pop and print the last value
• STOP – must be the last command in each program

Example (example.st)

PUSH 10 ;Push new value to the stack
DUP ;Duplicate the last value
POP ;Throw the last value
IREAD ;Read an input as integer
ISWAP ;Swap two last values, why not :)
IMUL ;Multiply two last values
IPRINT ;Pop and print the last value
STOP