OSWORD &18 (24) - IP Network transmit
This call is made by a modifed NFS to pass networking calls on to an IP networking handler. It should not be called directly by the user, programs should call OSWORD &10 and allow the networking system to forward the call to the appropriate handler.
On entry: XY?0 = control byte with b7 set XY?1 = destination port XY+2..3= destination station XY!4 = buffer start address XY!8 = buffer end address XY!12 = remote address for immediate operations On exit XY?0 = zero if transmission failed to start
Transmission must be polled with OSBYTE &32 (50). If the destination station is &FFFF, a broadcast will be sent, the eight bytes of data are in the control block at XY+4 to XY+11. If the port number is zero, an immediate operation is transmitted.