fix bug

src/machine.rs

@@ -30,6 +30,7 @@ impl<'a> Machine<'a> {
         while self.ip < self.code.len() {
             // get current instruction
             let instruction = &self.code[self.ip];
+            println!("{:?}", instruction);
             // match type and execute
             match instruction.itype {
                 InstructionType::Increment => {

src/parser.rs

@@ -43,7 +43,7 @@ impl Parser {
     fn load_instruction(&mut self, itype: InstructionType) {
         let instruction = Instruction {
             itype,
-            argument: 0,
+            argument: 1,
         };
 
         self.instructions.push(instruction);