I don't assume, Conitec will offer an inline assembler feature within Lite-C.
The reason maybe is, that you could use a regular C/C++ Compiler to do this
and Lite-C should be as easy as possible. But if you need this in your
Lite-C project you may try this method.

For instance:

Code:
double fmod_native(double x, double y)
{
	double ptr(double,double);
	static char machine_code[] = {
		0x55,			// push ebp
		0x8B, 0xEC,		// mov ebp, esp
		0xDD, 0x45, 0x10,	// fld qword ptr [ebp+0x10]
		0xDD, 0x45, 0x08,	// fld qword ptr [ebp+0x08]
		0xD9, 0xF8,		// fprem
		0xDD, 0x5D, 0xF8,	// fstp qword ptr [ebp-0x08]
		0xDD, 0xD8,		// fstp st(0)
		0xDD, 0x45, 0xF8,	// fld qword ptr [ebp-0x08]
		0x5D,			// pop ebp
		0xC3			// ret
	};
	ptr = machine_code;
	ptr(x, y);
}

void main()
{
	printf("fmod(7.0, 5.0) = %f", fmod_native(7.0, 5.0));
}