It's cool but unfortunately it does not help much.
I almost gave up on everything when I realized that the pccore.cpp is using source file that we don't have for implementing their OS on the PC-side.
Fortunately, they provide us with a precompiled pccore.obj !!! So it's ok to not have those files
I hope I am not going to find out other issues like this that make this impossible to achieve .... I am crossing my fingers and continuing digging into this .....