static AsmCode <T> AddCode <T>()
where T : unmanaged
{
if (typeof(T) == typeof(sbyte))
{
return(AsmCode.FromBytes <T>(add8iBytes));
}
else if (typeof(T) == typeof(byte))
{
return(AsmCode.FromBytes <T>(add8uBytes));
}
else if (typeof(T) == typeof(short))
{
return(AsmCode.FromBytes <T>(add16iBytes));
}
else if (typeof(T) == typeof(ushort))
{
return(AsmCode.FromBytes <T>(add16uBytes));
}
else if (typeof(T) == typeof(int))
{
return(AsmCode.FromBytes <T>(add32iBytes));
}
else if (typeof(T) == typeof(uint))
{
return(AsmCode.FromBytes <T>(add32uBytes));
}
else if (typeof(T) == typeof(long))
{
return(AsmCode.FromBytes <T>(add64iBytes));
}
else if (typeof(T) == typeof(ulong))
{
return(AsmCode.FromBytes <T>(add64uBytes));
}
else if (typeof(T) == typeof(float))
{
return(AsmCode.FromBytes <T>(add32fBytes));
}
else if (typeof(T) == typeof(double))
{
return(AsmCode.FromBytes <T>(add64fBytes));
}
else
{
throw unsupported <T>();
}
}
static AsmCode <T> SqrtCode <T>()
where T : unmanaged
{
if (typeof(T) == typeof(float))
{
return(AsmCode.FromBytes <T>(SqrtF32Bytes));
}
else if (typeof(T) == typeof(double))
{
return(AsmCode.FromBytes <T>(SqrtF64Bytes));
}
else
{
throw unsupported <T>();
}
}
public static AsmCode <T> Add128Code <T>()
where T : unmanaged
{
if (typeof(T) == typeof(sbyte) || typeof(T) == typeof(byte))
{
return(AsmCode.FromBytes <T>(vpaddbBytes));
}
else if (typeof(T) == typeof(short) || typeof(T) == typeof(ushort))
{
return(AsmCode.FromBytes <T>(vpaddwBytes));
}
else if (typeof(T) == typeof(int) || typeof(T) == typeof(uint))
{
return(AsmCode.FromBytes <T>(vpadddBytes));
}
else
{
throw unsupported <T>();
}
}
static AsmRdRand()
{
var rdrand = new byte[]
{
0x0f, 0xc7, 0xf0, // rdrand eax
0x0f, 0x92, 0x01, // setc byte ptr [rcx]
0xc3 // ret
};
Marshal.Copy(rdrand, 0, methodPtr <AsmRdRand>(nameof(RandNative)), rdrand.Length);
var code = AsmCode.FromBytes <uint>(rdrand);
var emitter = code.CreateEmitter();
emitter();
//var il = code.CreateEmitter().Method.GetMethodBody().GetILAsByteArray();
//var emitter = code.CreateEmitter();
//var il = emitter.Method.GetMethodBody().GetILAsByteArray();
//var dst = methodPtr<AsmRdRand>(nameof(Next));
//Marshal.Copy(il, 0, dst, il.Length);
}
