Function 52, subfunction 15 - get local MAC address.
Parameters:
- eax = 52 - function number
- ebx = 15 - subfunction number
- ecx = 0 - read first 4 bytes,
ecx = 4 - read last 2 bytes
Returned value:
- for ecx=0: eax = first 4 bytes of MAC address
- for ecx=4: ax = last 2 bytes of MAC address,
high half of eax is destroyed
- for other ecx: eax = -1 indicates an error