port from perforce

evoke-64k/ev09/intrin.h

@@ -0,0 +1,91 @@
+#pragma once
+
+unsigned int myrand();
+
+extern const float c_2PI;
+extern const float c_PI;
+
+#ifdef SUPERSMALL
+extern "C" 
+{ 
+	__declspec(naked) void _ftol2() 
+	{
+		__asm
+		{
+			fistp    DWORD PTR [esp-12]
+			mov		 eax, DWORD PTR [esp-12]
+			mov		 ecx, DWORD PTR [esp-8]
+
+			ret
+		}
+	}
+	__declspec(naked) void _ftol2_sse() 
+	{
+		__asm
+		{
+			fistp    DWORD PTR [esp-12]
+			mov		 eax, DWORD PTR [esp-12]
+			mov		 ecx, DWORD PTR [esp-8]
+
+			ret
+		}
+	}
+}
+
+
+__forceinline float mypow( float a,  float b);
+#endif
+
+
+extern "C"
+{
+	double __cdecl sin(double);
+	double __cdecl cos(double);
+	double __cdecl sqrt(double);
+	double __cdecl fabs(double);
+	double __cdecl atan2(double, double);
+
+	void* __cdecl memcpy( void* dest, const void* src, size_t count );
+}
+
+#pragma intrinsic ( sin, cos, sqrt, fabs, atan2 ) // true intrinsic
+#pragma intrinsic ( memcpy ) // true intrinsic
+
+/*
+__forceinline double sin(double v)
+{
+ __asm fld v;
+ __asm fsin;
+ __asm fstp v;
+ return v;
+}
+
+
+float cos(float v)
+{
+ __asm fld v;
+ __asm fcos;
+ __asm fstp v;
+ return v;
+}
+*/
+/*float sqrt(float v)
+{
+ __asm finit;
+ __asm fld v;
+ __asm fsqrt;
+ __asm fstp v;
+ return v;
+}*/
+
+/*float abs(float X)
+{
+	if(X < 0.0f)
+		return -X;
+
+	return X;
+}*/
+
+float maximum(float X, float Y);
+
+float minimum(float X, float Y);