Function 68, subfunction 6 - free physical memory.
Parameters:
- eax = 68 - function number
- ebx = 6 - subfunction number
- ecx = physical address of memory
Returned value:
- function does not return value
Remarks:
- Normal applications must not use this function, it is intended
for the case, when for some device it is required to place
data to the known physical address. (In effect, this function
was developed for AC97WAV.)
- The memory must be previously allocated by subfunction 5.