work on libc64

include/MSL_C/rand.h

@@ -0,0 +1,8 @@
+#ifndef RAND_H
+#define RAND_H
+#include "types.h"
+
+void srand (u32 seeed);
+int rand(void);
+
+#endif

include/MSL_C/w_math.h

@@ -0,0 +1,25 @@
+#ifndef W_MATH_H
+#define W_MATH_H
+#include "types.h"
+
+inline float sqrtf(float x)
+{
+	static const double _half=.5;
+	static const double _three=3.0;
+	volatile float y;
+	if(x > 0.0f)
+	{
+		double guess = __frsqrte((double)x);   // returns an approximation to
+		guess = _half*guess*(_three - guess*guess*x);  // now have 12 sig bits
+		guess = _half*guess*(_three - guess*guess*x);  // now have 24 sig bits
+		guess = _half*guess*(_three - guess*guess*x);  // now have 32 sig bits
+		y=(float)(x*guess);
+		return y;
+	}
+	return x;
+}
+
+f64 atan2(f64, f64);
+f64 acos(f32);
+
+#endif