Int 7C Fn 0014  - Sk-upps Data Link Interface API - Get Multicast List     [N]

   AX = 0014h
   BX = protocol ID (see AX=000Bh)
   ES:DI -> multicast address buffer
   CX = number of 6-byte multicast addresses that may be stored in buffer

Return: AX = completion code (see AX=0001h)
   CX = number of registered multicast addresses for this protocol
     (regardless of value returned in AX)
   multicast address buffer filled with multicast addresses registered for
     this protocol

Note:  If the buffer supplied is too small, CX still contains the total number
     of registered multicast addresses for this protocol and the buffer has
     been filled until full.

See Also: AX=000Bh,AX=0009h,AX=000Ch