sti

simplest STack Interpreter
made for educational purpose

Compilation

$ make

Quickstart

Open a file named test.sti , and paste :

push 1
push 1
add
print

Run :

$ ./sti test.sti

Instruction list

• push (num) : push a num at the top of the stack
• drop : drops the top element of the stack
• dup : duplicate an element on top of the stack
• swap : swap 2 elements on the top of the stack
• over : copy the element below the top of the stack and put it at the top
• not : doing the boolean not operation on the top of the stack element
• eq : test equality between the first two element, drop them, and push the result on the top
• lt : test less than between the first two element, drop them, and push the result on the top
• jump (num) : jump to line num+1
• jumpif (num) : if the top stack element is not 0, drop it, and jump to line num+1
• add : add the two first element of the stack, drop them, and push the result at the top
• print : print the top element as a num and drop it