improved the xor effect slightly

[retrobench] / src / util.h

diff --git a/src/util.h b/src/util.h
index 69d9d1e..633ccbf 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -35,10 +35,10 @@ typedef unsigned long intptr_t;
         ((x) << 24))
 
 
-extern int sinlut[];
+extern short sinlut[];
 
-#define SIN(x) sinlut[(x) & 0x3ff]
-#define COS(x) sinlut[((x) + 256) & 0x3ff]
+#define SIN(x) (int)sinlut[(x) & 0x7ff]
+#define COS(x) (int)sinlut[((x) + 512) & 0x7ff]
 
 int mask_to_shift(unsigned int mask);