Int 7C Fn 0013  - Sk-upps Data Link Interface API - Transmit Frame Releas  [N]

   AX = 0013h
   ES:BX -> Mbuf (see AX=0004h)

Return: nothing

Notes: Returns immediately; The protocol's Transmit Upcall will NOT be called.
   The Mbuf may no more be used by the protocol in any way (i.e. the
     Mbuf's IN USE field may not be polled).

See Also: AX=0004h,AX=0013h