1 files changed, 6 insertions, 1 deletions

diff --git a/src/vm.rs b/src/vm.rs
index 7f121d4..8bdd313 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -44,6 +44,7 @@ pub enum Op {
     Greater, // >
 
     AssertEqual,
+    Unreachable,
 
     ReadLocal(usize),
     Assign(usize),
@@ -148,7 +149,7 @@ impl VM {
     }
 
     pub fn run(&mut self) -> Result<(), Error>{
-        const PRINT_WHILE_RUNNING: bool = true;
+        const PRINT_WHILE_RUNNING: bool = false;
         const PRINT_BLOCK: bool = true;
 
         if PRINT_BLOCK {
@@ -176,6 +177,10 @@ impl VM {
                     error!(self, ErrorKind::InvalidProgram);
                 }
 
+                Op::Unreachable => {
+                    error!(self, ErrorKind::Unreachable);
+                }
+
                 Op::Pop => {
                     self.stack.pop();
                 }