Fixed a few old bugs

- Fixed a where the VM excuted one loop regardless of instructions.
- Use the full 32 bits if an instruction is less.

src/assembler/instruction_parser.rs

@@ -35,6 +35,10 @@ impl AssemblerInstruction {
             }
         }
 
+        while results.len() < 4 {
+            results.push(0);
+        }
+
         results
     }