add true, false, nil keywords

1 files changed, 5 insertions, 1 deletions

diff --git a/vm.h b/vm.h
index 859e207..e184426 100644
--- a/vm.h
+++ b/vm.h
@@ -49,8 +49,12 @@ typedef enum {
 
 	OP_GETGLOBAL,
 	OP_SETGLOBAL,
+
+	OP_TRUE,
+	OP_FALSE,
+	OP_NIL,
 } Op;
 
-void runvm(State *S);
+int runvm(State *S);
 
 #endif