Code Virtualizer > FAQ > General > I have inserted 2 functions to protect via "VirtualizerStart()" but Code Virtualizer does not recognise them!

That problem might be due to compiler optimizations which generate a different calling convention for VirtualizerStart - VirtualizerEnd functions. You should turn off optimizations for the routine where VirtualizerStart() is called. The following example turns off and on optimizations for your routine in C language (using the #pragma directive):

#pragma optimize("",off)

void MyFunction(void)

{

VirtualizerStart();

// your code

VirtualizerEnd();

...

VirtualizerStart();

// your code

VirtualizerEnd();

}

#pragma optimize("",on)