diff --git a/axl_types.h b/axl_types.h
index b520041..423f797 100644
--- a/axl_types.h
+++ b/axl_types.h
@@ -15,4 +15,21 @@ typedef unsigned long long  u64;
 #define false 0
 #define NULL ((void*)0)
 
+// Minimum and maximum values for integer types
+#define I8_MIN   (-128)
+#define I8_MAX   127
+#define U8_MAX   255
+
+#define I16_MIN  (-32768)
+#define I16_MAX  32767
+#define U16_MAX  65535
+
+#define I32_MIN  (-2147483647 - 1)
+#define I32_MAX  2147483647
+#define U32_MAX  4294967295U
+
+#define I64_MIN  (-9223372036854775807LL - 1LL)
+#define I64_MAX  9223372036854775807LL
+#define U64_MAX  18446744073709551615ULL
+
 #endif // !AXL_TYPES_H