1 files changed, 15 insertions, 0 deletions
diff --git a/src/types.h b/src/types.h
index 371d8b8..0728947 100644
--- a/src/types.h
+++ b/src/types.h
@@ -1,6 +1,21 @@
+#ifndef TYPES_H
+#define TYPES_H
 typedef unsigned char  BYTE;
 typedef unsigned short WORD;
 typedef unsigned long QWORD;
 typedef unsigned long U64;
 
+#define C64(constantU64) constantU64##ULL
+#define BIT (U64)1
 
+typedef enum enumSquare {
+  a1, b1, c1, d1, e1, f1, g1, h1,
+  a2, b2, c2, d2, e2, f2, g2, h2,
+  a3, b3, c3, d3, e3, f3, g3, h3,
+  a4, b4, c4, d4, e4, f4, g4, h4,
+  a5, b5, c5, d5, e5, f5, g5, h5,
+  a6, b6, c6, d6, e6, f6, g6, h6,
+  a7, b7, c7, d7, e7, f7, g7, h7,
+  a8, b8, c8, d8, e8, f8, g8, h8
+} enumSquare;
+#endif