Rename math_util.cc to cpp, cleanup.

math/math_util.cpp

@@ -0,0 +1,53 @@
+#include "math/math_util.h"
+#include <math.h>
+#include <stdlib.h>
+
+/*
+static unsigned int randSeed = 22222;  // Change this for different random sequences. 
+
+void SetSeed(unsigned int seed) {
+	randSeed = seed * 382792592;
+}
+
+unsigned int GenerateRandomNumber() {
+	randSeed = (randSeed * 196314165) + 907633515;
+	randSeed ^= _rotl(randSeed, 13);
+	return randSeed;
+}*/
+
+#include <math.h>
+
+#ifdef ANDROID
+
+void EnableFZ()
+{
+  int x;
+  asm(
+    "fmrx %[result],FPSCR \r\n"
+    "orr %[result],%[result],#16777216 \r\n"
+    "fmxr FPSCR,%[result]"
+    :[result] "=r" (x) : :
+  );
+  //printf("ARM FPSCR: %08x\n",x);
+}
+
+void DisableFZ( )
+{
+  __asm__ volatile(
+    "fmrx r0, fpscr\n"
+    "bic r0, $(1 << 24)\n"
+    "fmxr fpscr, r0" : : : "r0");
+}
+#else
+
+void EnableFZ()
+{
+
+
+}
+void DisableFZ()
+{
+
+}
+
+#endif