diff --git a/include/types.h b/include/types.h
index e44c7ec..e52d31d 100644
--- a/include/types.h
+++ b/include/types.h
@@ -5,7 +5,13 @@
  * Define our standard types
  */
 typedef unsigned char u8;
+typedef unsigned short u16;
 typedef unsigned int u32;
+typedef unsigned long long u64;
 typedef u32 size_t;
 
+#define true 1
+#define false 0
+#define NULL ((void *)0)
+
 #endif